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Made a more granular configuration possible PREVENT_LENGTHY_EXTRUDE. You can now decide to allow/disallow large length of extrusions to be executed.

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Turning off the protection might be beneficial to those who want to do fast and long reversals.
This commit is contained in:
Erik de Bruijn 2012-05-08 17:27:45 +02:00
parent d88205d89d
commit e3fe1f0d00
2 changed files with 5 additions and 0 deletions
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3
Marlin/Configuration.h
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@ -108,6 +108,9 @@
//this prevents dangerous Extruder moves, i.e. if the temperature is under the limit //this prevents dangerous Extruder moves, i.e. if the temperature is under the limit
//can be software-disabled for whatever purposes by //can be software-disabled for whatever purposes by
#define PREVENT_DANGEROUS_EXTRUDE #define PREVENT_DANGEROUS_EXTRUDE
//if PREVENT_DANGEROUS_EXTRUDE is on, you can still disable (uncomment) very long bits of extrusion separately.
#define PREVENT_LENGTHY_EXTRUDE
#define EXTRUDE_MINTEMP 170 #define EXTRUDE_MINTEMP 170
#define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances. #define EXTRUDE_MAXLENGTH (X_MAX_LENGTH+Y_MAX_LENGTH) //prevent extrusion of very large distances.

2
Marlin/planner.cpp
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@ -495,12 +495,14 @@ void plan_buffer_line(const float &x, const float &y, const float &z, const floa
SERIAL_ECHO_START; SERIAL_ECHO_START;
SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP); SERIAL_ECHOLNPGM(MSG_ERR_COLD_EXTRUDE_STOP);
} }
#ifdef PREVENT_LENGTHY_EXTRUDE
if(labs(target[E_AXIS]-position[E_AXIS])>axis_steps_per_unit[E_AXIS]*EXTRUDE_MAXLENGTH) if(labs(target[E_AXIS]-position[E_AXIS])>axis_steps_per_unit[E_AXIS]*EXTRUDE_MAXLENGTH)
{ {
position[E_AXIS]=target[E_AXIS]; //behave as if the move really took place, but ignore E part position[E_AXIS]=target[E_AXIS]; //behave as if the move really took place, but ignore E part
SERIAL_ECHO_START; SERIAL_ECHO_START;
SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP); SERIAL_ECHOLNPGM(MSG_ERR_LONG_EXTRUDE_STOP);
} }
#endif
#endif #endif
// Prepare to set up new block // Prepare to set up new block