Add PID_FAN_SCALING option (#15585)
This commit is contained in:
haschtl
Scott Lahteine
parent
8ccfdaca02
commit
ff6518c0a8
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@ -197,6 +197,56 @@
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#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
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#define LPQ_MAX_LEN 50
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#endif
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/**
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* Add an experimental additional term to the heater power, proportional to the fan speed.
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* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
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* You can either just add a constant compensation with the DEFAULT_Kf value
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* or follow the instruction below to get speed-dependent compensation.
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*
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* Constant compensation (use only with fanspeeds of 0% and 100%)
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* ---------------------------------------------------------------------
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* A good starting point for the Kf-value comes from the calculation:
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* kf = (power_fan * eff_fan) / power_heater * 255
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* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
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*
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* Example:
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* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
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* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
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*
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* Fan-speed dependent compensation
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* --------------------------------
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* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
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* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
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* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
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* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
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* 2. Note the Kf-value for fan-speed at 100%
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* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
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* 4. Repeat step 1. and 2. for this fan speed.
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* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
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* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
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*/
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//#define PID_FAN_SCALING
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#if ENABLED(PID_FAN_SCALING)
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//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
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#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
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// The alternative definition is used for an easier configuration.
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// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
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// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
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#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
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#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
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#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
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#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
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#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
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#else
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#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
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#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
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#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
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#endif
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#endif
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#endif
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/**
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@ -38,6 +38,10 @@
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*
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* C[float] Kc term
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* L[int] LPQ length
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*
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* With PID_FAN_SCALING:
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*
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* F[float] Kf term
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*/
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void GcodeSuite::M301() {
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@ -56,6 +60,10 @@ void GcodeSuite::M301() {
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NOLESS(thermalManager.lpq_len, 0);
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#endif
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#if ENABLED(PID_FAN_SCALING)
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if (parser.seen('F')) PID_PARAM(Kf, e) = parser.value_float();
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#endif
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thermalManager.updatePID();
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SERIAL_ECHO_START();
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#if ENABLED(PID_PARAMS_PER_HOTEND)
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@ -65,9 +73,12 @@ void GcodeSuite::M301() {
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" i:", unscalePID_i(PID_PARAM(Ki, e)),
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" d:", unscalePID_d(PID_PARAM(Kd, e)));
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#if ENABLED(PID_EXTRUSION_SCALING)
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//Kc does not have scaling applied above, or in resetting defaults
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SERIAL_ECHOPAIR(" c:", PID_PARAM(Kc, e));
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#endif
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#if ENABLED(PID_FAN_SCALING)
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SERIAL_ECHOPAIR(" f:", PID_PARAM(Kf, e));
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#endif
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SERIAL_EOL();
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}
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else
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@ -229,6 +229,8 @@
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#error "LCD_PIN_RESET is now LCD_RESET_PIN. Please update your pins definitions."
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#elif defined(EXTRUDER_0_AUTO_FAN_PIN) || defined(EXTRUDER_1_AUTO_FAN_PIN) || defined(EXTRUDER_2_AUTO_FAN_PIN) || defined(EXTRUDER_3_AUTO_FAN_PIN)
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#error "EXTRUDER_[0123]_AUTO_FAN_PIN is now E[0123]_AUTO_FAN_PIN. Please update your Configuration_adv.h."
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#elif defined(PID_FAN_SCALING) && FAN_COUNT <= 0
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#error "PID_FAN_SCALING needs at least one fan enabled."
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#elif defined(min_software_endstops) || defined(max_software_endstops)
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#error "(min|max)_software_endstops are now (MIN|MAX)_SOFTWARE_ENDSTOPS. Please update your configuration."
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#elif ENABLED(Z_PROBE_SLED) && defined(SLED_PIN)
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@ -289,7 +289,7 @@ void menu_cancelobject();
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//
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#if ENABLED(PID_EDIT_MENU)
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#define _PID_BASE_MENU_ITEMS(N) \
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#define __PID_BASE_MENU_ITEMS(N) \
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raw_Ki = unscalePID_i(PID_PARAM(Ki, N)); \
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raw_Kd = unscalePID_d(PID_PARAM(Kd, N)); \
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EDIT_ITEM_N(float52sign, N, MSG_PID_P_E, &PID_PARAM(Kp, N), 1, 9990); \
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@ -297,9 +297,17 @@ void menu_cancelobject();
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EDIT_ITEM_N(float52sign, N, MSG_PID_D_E, &raw_Kd, 1, 9990, []{ copy_and_scalePID_d(N); })
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#if ENABLED(PID_EXTRUSION_SCALING)
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#define _PID_BASE_MENU_ITEMS(N) \
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__PID_BASE_MENU_ITEMS(N); \
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EDIT_ITEM_N(float3, N, MSG_PID_C_E, &PID_PARAM(Kc, N), 1, 9990)
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#else
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#define _PID_BASE_MENU_ITEMS(N) __PID_BASE_MENU_ITEMS(N)
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#endif
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#if ENABLED(PID_FAN_SCALING)
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#define _PID_EDIT_MENU_ITEMS(N) \
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_PID_BASE_MENU_ITEMS(N); \
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EDIT_ITEM_N(float3, N, MSG_PID_C_E, &PID_PARAM(Kc, N), 1, 9990)
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EDIT_ITEM(float3, PID_LABEL(MSG_PID_F,N), &PID_PARAM(Kf, N), 1, 9990)
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#else
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#define _PID_EDIT_MENU_ITEMS(N) _PID_BASE_MENU_ITEMS(N)
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#endif
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@ -37,7 +37,7 @@
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*/
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// Change EEPROM version if the structure changes
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#define EEPROM_VERSION "V72"
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#define EEPROM_VERSION "V73"
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#define EEPROM_OFFSET 100
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// Check the integrity of data offsets.
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@ -242,7 +242,7 @@ typedef struct SettingsDataStruct {
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//
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// PIDTEMP
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//
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PIDC_t hotendPID[HOTENDS]; // M301 En PIDC / M303 En U
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PIDCF_t hotendPID[HOTENDS]; // M301 En PIDCF / M303 En U
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int16_t lpq_len; // M301 L
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//
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@ -785,13 +785,14 @@ void MarlinSettings::postprocess() {
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{
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_FIELD_TEST(hotendPID);
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HOTEND_LOOP() {
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PIDC_t pidc = {
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PIDCF_t pidcf = {
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PID_PARAM(Kp, e),
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unscalePID_i(PID_PARAM(Ki, e)),
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unscalePID_d(PID_PARAM(Kd, e)),
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PID_PARAM(Kc, e)
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PID_PARAM(Kc, e),
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PID_PARAM(Kf, e)
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};
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EEPROM_WRITE(pidc);
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EEPROM_WRITE(pidcf);
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}
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_FIELD_TEST(lpq_len);
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@ -1586,16 +1587,19 @@ void MarlinSettings::postprocess() {
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//
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{
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HOTEND_LOOP() {
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PIDC_t pidc;
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EEPROM_READ(pidc);
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PIDCF_t pidcf;
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EEPROM_READ(pidcf);
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#if ENABLED(PIDTEMP)
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if (!validating && pidc.Kp != DUMMY_PID_VALUE) {
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if (!validating && pidcf.Kp != DUMMY_PID_VALUE) {
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// Scale PID values since EEPROM values are unscaled
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PID_PARAM(Kp, e) = pidc.Kp;
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PID_PARAM(Ki, e) = scalePID_i(pidc.Ki);
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PID_PARAM(Kd, e) = scalePID_d(pidc.Kd);
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PID_PARAM(Kp, e) = pidcf.Kp;
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PID_PARAM(Ki, e) = scalePID_i(pidcf.Ki);
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PID_PARAM(Kd, e) = scalePID_d(pidcf.Kd);
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#if ENABLED(PID_EXTRUSION_SCALING)
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PID_PARAM(Kc, e) = pidc.Kc;
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PID_PARAM(Kc, e) = pidcf.Kc;
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#endif
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#if ENABLED(PID_FAN_SCALING)
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PID_PARAM(Kf, e) = pidcf.Kf;
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#endif
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}
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#endif
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@ -2446,6 +2450,10 @@ void MarlinSettings::reset() {
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#if ENABLED(PID_EXTRUSION_SCALING)
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PID_PARAM(Kc, e) = DEFAULT_Kc;
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#endif
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#if ENABLED(PID_FAN_SCALING)
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PID_PARAM(Kf, e) = DEFAULT_Kf;
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#endif
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}
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#endif
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@ -3003,6 +3011,9 @@ void MarlinSettings::reset() {
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SERIAL_ECHOPAIR(" C", PID_PARAM(Kc, e));
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if (e == 0) SERIAL_ECHOPAIR(" L", thermalManager.lpq_len);
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#endif
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#if ENABLED(PID_FAN_SCALING)
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SERIAL_ECHOPAIR(" F", PID_PARAM(Kf, e));
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#endif
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SERIAL_EOL();
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}
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#endif // PIDTEMP
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@ -872,6 +872,15 @@ void Temperature::min_temp_error(const heater_ind_t heater) {
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}
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#endif // PID_EXTRUSION_SCALING
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#if ENABLED(PID_FAN_SCALING)
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if (thermalManager.fan_speed[active_extruder] > PID_FAN_SCALING_MIN_SPEED) {
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work_pid[ee].Kf = PID_PARAM(Kf, ee) + (PID_FAN_SCALING_LIN_FACTOR) * thermalManager.fan_speed[active_extruder];
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pid_output += work_pid[ee].Kf;
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}
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//pid_output -= work_pid[ee].Ki;
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//pid_output += work_pid[ee].Ki * work_pid[ee].Kf
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#endif // PID_FAN_SCALING
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LIMIT(pid_output, 0, PID_MAX);
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}
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temp_dState[ee] = temp_hotend[ee].celsius;
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@ -55,15 +55,23 @@ typedef enum : int8_t {
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// PID storage
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typedef struct { float Kp, Ki, Kd; } PID_t;
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typedef struct { float Kp, Ki, Kd, Kc; } PIDC_t;
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#if ENABLED(PID_EXTRUSION_SCALING)
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typedef PIDC_t hotend_pid_t;
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#if LPQ_MAX_LEN > 255
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typedef uint16_t lpq_ptr_t;
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typedef struct { float Kp, Ki, Kd, Kf; } PIDF_t;
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typedef struct { float Kp, Ki, Kd, Kc, Kf; } PIDCF_t;
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typedef
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#if BOTH(PID_EXTRUSION_SCALING, PID_FAN_SCALING)
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PIDCF_t
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#elif ENABLED(PID_EXTRUSION_SCALING)
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PIDC_t
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#elif ENABLED(PID_FAN_SCALING)
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PIDF_t
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#else
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typedef uint8_t lpq_ptr_t;
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PID_t
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#endif
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#else
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typedef PID_t hotend_pid_t;
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hotend_pid_t;
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#if ENABLED(PID_EXTRUSION_SCALING)
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typedef IF<(LPQ_MAX_LEN > 255), uint16_t, uint8_t>::type lpq_ptr_t;
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#endif
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#define DUMMY_PID_VALUE 3000.0f
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@ -77,6 +85,12 @@ typedef struct { float Kp, Ki, Kd, Kc; } PIDC_t;
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#else
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#define _PID_Kc(H) 1
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#endif
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#if ENABLED(PID_FAN_SCALING)
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#define _PID_Kf(H) Temperature::temp_hotend[H].pid.Kf
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#else
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#define _PID_Kf(H) 0
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#endif
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#else
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#define _PID_Kp(H) DUMMY_PID_VALUE
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#define _PID_Ki(H) DUMMY_PID_VALUE
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@ -197,6 +197,56 @@
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#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
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#define LPQ_MAX_LEN 50
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#endif
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/**
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* Add an experimental additional term to the heater power, proportional to the fan speed.
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* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
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* You can either just add a constant compensation with the DEFAULT_Kf value
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* or follow the instruction below to get speed-dependent compensation.
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*
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* Constant compensation (use only with fanspeeds of 0% and 100%)
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* ---------------------------------------------------------------------
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* A good starting point for the Kf-value comes from the calculation:
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* kf = (power_fan * eff_fan) / power_heater * 255
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* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
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*
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* Example:
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* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
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* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
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*
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* Fan-speed dependent compensation
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* --------------------------------
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* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
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* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
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* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
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* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
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* 2. Note the Kf-value for fan-speed at 100%
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* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
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* 4. Repeat step 1. and 2. for this fan speed.
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* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
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* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
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*/
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//#define PID_FAN_SCALING
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#if ENABLED(PID_FAN_SCALING)
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//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
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#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
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// The alternative definition is used for an easier configuration.
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// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
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// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
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#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
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#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
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#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
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#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
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#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
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#else
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#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
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#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
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#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
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#endif
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#endif
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#endif
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/**
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@ -197,6 +197,56 @@
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#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
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#define LPQ_MAX_LEN 50
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#endif
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/**
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* Add an experimental additional term to the heater power, proportional to the fan speed.
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* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
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* You can either just add a constant compensation with the DEFAULT_Kf value
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* or follow the instruction below to get speed-dependent compensation.
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*
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* Constant compensation (use only with fanspeeds of 0% and 100%)
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* ---------------------------------------------------------------------
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* A good starting point for the Kf-value comes from the calculation:
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* kf = (power_fan * eff_fan) / power_heater * 255
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* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
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*
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* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -201,6 +201,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -202,6 +202,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -202,6 +202,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -210,6 +210,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
|
|
@ -197,6 +197,56 @@
|
|||
#define DEFAULT_Kc (100) //heating power=Kc*(e_speed)
|
||||
#define LPQ_MAX_LEN 50
|
||||
#endif
|
||||
|
||||
/**
|
||||
* Add an experimental additional term to the heater power, proportional to the fan speed.
|
||||
* A well-chosen Kf value should add just enough power to compensate for power-loss from the cooling fan.
|
||||
* You can either just add a constant compensation with the DEFAULT_Kf value
|
||||
* or follow the instruction below to get speed-dependent compensation.
|
||||
*
|
||||
* Constant compensation (use only with fanspeeds of 0% and 100%)
|
||||
* ---------------------------------------------------------------------
|
||||
* A good starting point for the Kf-value comes from the calculation:
|
||||
* kf = (power_fan * eff_fan) / power_heater * 255
|
||||
* where eff_fan is between 0.0 and 1.0, based on fan-efficiency and airflow to the nozzle / heater.
|
||||
*
|
||||
* Example:
|
||||
* Heater: 40W, Fan: 0.1A * 24V = 2.4W, eff_fan = 0.8
|
||||
* Kf = (2.4W * 0.8) / 40W * 255 = 12.24
|
||||
*
|
||||
* Fan-speed dependent compensation
|
||||
* --------------------------------
|
||||
* 1. To find a good Kf value, set the hotend temperature, wait for it to settle, and enable the fan (100%).
|
||||
* Make sure PID_FAN_SCALING_LIN_FACTOR is 0 and PID_FAN_SCALING_ALTERNATIVE_DEFINITION is not enabled.
|
||||
* If you see the temperature drop repeat the test, increasing the Kf value slowly, until the temperature
|
||||
* drop goes away. If the temperature overshoots after enabling the fan, the Kf value is too big.
|
||||
* 2. Note the Kf-value for fan-speed at 100%
|
||||
* 3. Determine a good value for PID_FAN_SCALING_MIN_SPEED, which is around the speed, where the fan starts moving.
|
||||
* 4. Repeat step 1. and 2. for this fan speed.
|
||||
* 5. Enable PID_FAN_SCALING_ALTERNATIVE_DEFINITION and enter the two identified Kf-values in
|
||||
* PID_FAN_SCALING_AT_FULL_SPEED and PID_FAN_SCALING_AT_MIN_SPEED. Enter the minimum speed in PID_FAN_SCALING_MIN_SPEED
|
||||
*/
|
||||
//#define PID_FAN_SCALING
|
||||
#if ENABLED(PID_FAN_SCALING)
|
||||
//#define PID_FAN_SCALING_ALTERNATIVE_DEFINITION
|
||||
#if ENABLED(PID_FAN_SCALING_ALTERNATIVE_DEFINITION)
|
||||
// The alternative definition is used for an easier configuration.
|
||||
// Just figure out Kf at fullspeed (255) and PID_FAN_SCALING_MIN_SPEED.
|
||||
// DEFAULT_Kf and PID_FAN_SCALING_LIN_FACTOR are calculated accordingly.
|
||||
|
||||
#define PID_FAN_SCALING_AT_FULL_SPEED 13.0 //=PID_FAN_SCALING_LIN_FACTOR*255+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_AT_MIN_SPEED 6.0 //=PID_FAN_SCALING_LIN_FACTOR*PID_FAN_SCALING_MIN_SPEED+DEFAULT_Kf
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10.0 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
|
||||
#define DEFAULT_Kf (255.0*PID_FAN_SCALING_AT_MIN_SPEED-PID_FAN_SCALING_AT_FULL_SPEED*PID_FAN_SCALING_MIN_SPEED)/(255.0-PID_FAN_SCALING_MIN_SPEED)
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (PID_FAN_SCALING_AT_FULL_SPEED-DEFAULT_Kf)/255.0
|
||||
|
||||
#else
|
||||
#define PID_FAN_SCALING_LIN_FACTOR (0) // Power loss due to cooling = Kf * (fan_speed)
|
||||
#define DEFAULT_Kf 10 // A constant value added to the PID-tuner
|
||||
#define PID_FAN_SCALING_MIN_SPEED 10 // Minimum fan speed at which to enable PID_FAN_SCALING
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/**
|
||||
|
|
|
|||
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Reference in a new issue