Allow non-square leveling grid

This commit is contained in:
Scott Lahteine 2016-09-15 13:56:56 -05:00
parent fef959c31a
commit e5505e3b33
24 changed files with 94 additions and 65 deletions

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@ -768,7 +768,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -494,7 +494,7 @@ static uint8_t target_extruder;
#if ENABLED(AUTO_BED_LEVELING_NONLINEAR) #if ENABLED(AUTO_BED_LEVELING_NONLINEAR)
int nonlinear_grid_spacing[2] = { 0 }; int nonlinear_grid_spacing[2] = { 0 };
float bed_level_grid[AUTO_BED_LEVELING_GRID_POINTS][AUTO_BED_LEVELING_GRID_POINTS]; float bed_level_grid[ABL_GRID_POINTS_X][ABL_GRID_POINTS_Y];
#endif #endif
#if IS_SCARA #if IS_SCARA
@ -2122,14 +2122,15 @@ static void clean_up_after_endstop_or_probe_move() {
* using linear extrapolation, away from the center. * using linear extrapolation, away from the center.
*/ */
static void extrapolate_unprobed_bed_level() { static void extrapolate_unprobed_bed_level() {
uint8_t half = (AUTO_BED_LEVELING_GRID_POINTS - 1) / 2; int half_x = (ABL_GRID_POINTS_X - 1) / 2,
for (uint8_t y = 0; y <= half; y++) { half_y = (ABL_GRID_POINTS_Y - 1) / 2;
for (uint8_t x = 0; x <= half; x++) { for (uint8_t y = 0; y <= half_y; y++) {
for (uint8_t x = 0; x <= half_x; x++) {
if (x + y < 3) continue; if (x + y < 3) continue;
extrapolate_one_point(half - x, half - y, x > 1 ? +1 : 0, y > 1 ? +1 : 0); extrapolate_one_point(half_x - x, half_y - y, x > 1 ? +1 : 0, y > 1 ? +1 : 0);
extrapolate_one_point(half + x, half - y, x > 1 ? -1 : 0, y > 1 ? +1 : 0); extrapolate_one_point(half_x + x, half_y - y, x > 1 ? -1 : 0, y > 1 ? +1 : 0);
extrapolate_one_point(half - x, half + y, x > 1 ? +1 : 0, y > 1 ? -1 : 0); extrapolate_one_point(half_x - x, half_y + y, x > 1 ? +1 : 0, y > 1 ? -1 : 0);
extrapolate_one_point(half + x, half + y, x > 1 ? -1 : 0, y > 1 ? -1 : 0); extrapolate_one_point(half_x + x, half_y + y, x > 1 ? -1 : 0, y > 1 ? -1 : 0);
} }
} }
} }
@ -2138,8 +2139,8 @@ static void clean_up_after_endstop_or_probe_move() {
* Print calibration results for plotting or manual frame adjustment. * Print calibration results for plotting or manual frame adjustment.
*/ */
static void print_bed_level() { static void print_bed_level() {
for (uint8_t y = 0; y < AUTO_BED_LEVELING_GRID_POINTS; y++) { for (uint8_t y = 0; y < ABL_GRID_POINTS_Y; y++) {
for (uint8_t x = 0; x < AUTO_BED_LEVELING_GRID_POINTS; x++) { for (uint8_t x = 0; x < ABL_GRID_POINTS_X; x++) {
SERIAL_PROTOCOL_F(bed_level_grid[x][y], 2); SERIAL_PROTOCOL_F(bed_level_grid[x][y], 2);
SERIAL_PROTOCOLCHAR(' '); SERIAL_PROTOCOLCHAR(' ');
} }
@ -3308,11 +3309,12 @@ inline void gcode_G28() {
if (dryrun) SERIAL_PROTOCOLLNPGM("Running in DRY-RUN mode"); if (dryrun) SERIAL_PROTOCOLLNPGM("Running in DRY-RUN mode");
} }
int auto_bed_leveling_grid_points = AUTO_BED_LEVELING_GRID_POINTS; int abl_grid_points_x = ABL_GRID_POINTS_X,
abl_grid_points_y = ABL_GRID_POINTS_Y;
#if ENABLED(AUTO_BED_LEVELING_LINEAR) #if ENABLED(AUTO_BED_LEVELING_LINEAR)
if (code_seen('P')) auto_bed_leveling_grid_points = code_value_int(); if (code_seen('P')) abl_grid_points_x = abl_grid_points_y = code_value_int();
if (auto_bed_leveling_grid_points < 2) { if (abl_grid_points_x < 2) {
SERIAL_PROTOCOLLNPGM("?Number of probed (P)oints is implausible (2 minimum)."); SERIAL_PROTOCOLLNPGM("?Number of probed (P)oints is implausible (2 minimum).");
return; return;
} }
@ -3400,8 +3402,8 @@ inline void gcode_G28() {
#if ENABLED(AUTO_BED_LEVELING_GRID) #if ENABLED(AUTO_BED_LEVELING_GRID)
// probe at the points of a lattice grid // probe at the points of a lattice grid
const float xGridSpacing = (right_probe_bed_position - left_probe_bed_position) / (auto_bed_leveling_grid_points - 1), const float xGridSpacing = (right_probe_bed_position - left_probe_bed_position) / (abl_grid_points_x - 1),
yGridSpacing = (back_probe_bed_position - front_probe_bed_position) / (auto_bed_leveling_grid_points - 1); yGridSpacing = (back_probe_bed_position - front_probe_bed_position) / (abl_grid_points_y - 1);
#if ENABLED(AUTO_BED_LEVELING_NONLINEAR) #if ENABLED(AUTO_BED_LEVELING_NONLINEAR)
@ -3421,30 +3423,31 @@ inline void gcode_G28() {
* so Vx = -a Vy = -b Vz = 1 (we want the vector facing towards positive Z * so Vx = -a Vy = -b Vz = 1 (we want the vector facing towards positive Z
*/ */
int abl2 = sq(auto_bed_leveling_grid_points); int abl2 = abl_grid_points_x * abl_grid_points_y;
double eqnAMatrix[abl2 * 3], // "A" matrix of the linear system of equations double eqnAMatrix[abl2 * 3], // "A" matrix of the linear system of equations
eqnBVector[abl2], // "B" vector of Z points eqnBVector[abl2], // "B" vector of Z points
mean = 0.0; mean = 0.0;
int8_t indexIntoAB[auto_bed_leveling_grid_points][auto_bed_leveling_grid_points]; int indexIntoAB[abl_grid_points_x][abl_grid_points_y];
#endif // AUTO_BED_LEVELING_LINEAR #endif // AUTO_BED_LEVELING_LINEAR
int probePointCounter = 0; int probePointCounter = 0;
bool zig = auto_bed_leveling_grid_points & 1; //always end at [RIGHT_PROBE_BED_POSITION, BACK_PROBE_BED_POSITION] bool zig = abl_grid_points_y & 1; //always end at [RIGHT_PROBE_BED_POSITION, BACK_PROBE_BED_POSITION]
for (uint8_t yCount = 0; yCount < auto_bed_leveling_grid_points; yCount++) { for (uint8_t yCount = 0; yCount < abl_grid_points_y; yCount++) {
float yBase = front_probe_bed_position + yGridSpacing * yCount; float yBase = front_probe_bed_position + yGridSpacing * yCount;
yProbe = floor(yBase + (yBase < 0 ? 0 : 0.5)); yProbe = floor(yBase + (yBase < 0 ? 0 : 0.5));
int8_t xStart, xStop, xInc; int8_t xStart, xStop, xInc;
if (zig) { if (zig) {
xStart = 0; xStart = 0;
xStop = auto_bed_leveling_grid_points; xStop = abl_grid_points_x;
xInc = 1; xInc = 1;
} }
else { else {
xStart = auto_bed_leveling_grid_points - 1; xStart = abl_grid_points_x - 1;
xStop = -1; xStop = -1;
xInc = -1; xInc = -1;
} }
@ -3579,8 +3582,8 @@ inline void gcode_G28() {
float min_diff = 999; float min_diff = 999;
for (int8_t yy = auto_bed_leveling_grid_points - 1; yy >= 0; yy--) { for (int8_t yy = abl_grid_points_y - 1; yy >= 0; yy--) {
for (uint8_t xx = 0; xx < auto_bed_leveling_grid_points; xx++) { for (uint8_t xx = 0; xx < abl_grid_points_x; xx++) {
int ind = indexIntoAB[xx][yy]; int ind = indexIntoAB[xx][yy];
float diff = eqnBVector[ind] - mean, float diff = eqnBVector[ind] - mean,
x_tmp = eqnAMatrix[ind + 0 * abl2], x_tmp = eqnAMatrix[ind + 0 * abl2],
@ -3604,8 +3607,8 @@ inline void gcode_G28() {
if (verbose_level > 3) { if (verbose_level > 3) {
SERIAL_PROTOCOLLNPGM("\nCorrected Bed Height vs. Bed Topology:"); SERIAL_PROTOCOLLNPGM("\nCorrected Bed Height vs. Bed Topology:");
for (int yy = auto_bed_leveling_grid_points - 1; yy >= 0; yy--) { for (int8_t yy = abl_grid_points_y - 1; yy >= 0; yy--) {
for (int xx = 0; xx < auto_bed_leveling_grid_points; xx++) { for (uint8_t xx = 0; xx < abl_grid_points_x; xx++) {
int ind = indexIntoAB[xx][yy]; int ind = indexIntoAB[xx][yy];
float x_tmp = eqnAMatrix[ind + 0 * abl2], float x_tmp = eqnAMatrix[ind + 0 * abl2],
y_tmp = eqnAMatrix[ind + 1 * abl2], y_tmp = eqnAMatrix[ind + 1 * abl2],
@ -7796,16 +7799,18 @@ void ok_to_send() {
void adjust_delta(float cartesian[XYZ]) { void adjust_delta(float cartesian[XYZ]) {
if (nonlinear_grid_spacing[X_AXIS] == 0 || nonlinear_grid_spacing[Y_AXIS] == 0) return; // G29 not done! if (nonlinear_grid_spacing[X_AXIS] == 0 || nonlinear_grid_spacing[Y_AXIS] == 0) return; // G29 not done!
int half = (AUTO_BED_LEVELING_GRID_POINTS - 1) / 2; int half_x = (ABL_GRID_POINTS_X - 1) / 2,
float h1 = 0.001 - half, h2 = half - 0.001, half_y = (ABL_GRID_POINTS_Y - 1) / 2;
grid_x = max(h1, min(h2, RAW_X_POSITION(cartesian[X_AXIS]) / nonlinear_grid_spacing[X_AXIS])), float hx2 = half_x - 0.001, hx1 = -hx2,
grid_y = max(h1, min(h2, RAW_Y_POSITION(cartesian[Y_AXIS]) / nonlinear_grid_spacing[Y_AXIS])); hy2 = half_y - 0.001, hy1 = -hy2,
grid_x = max(hx1, min(hx2, RAW_X_POSITION(cartesian[X_AXIS]) / nonlinear_grid_spacing[X_AXIS])),
grid_y = max(hy1, min(hy2, RAW_Y_POSITION(cartesian[Y_AXIS]) / nonlinear_grid_spacing[Y_AXIS]));
int floor_x = floor(grid_x), floor_y = floor(grid_y); int floor_x = floor(grid_x), floor_y = floor(grid_y);
float ratio_x = grid_x - floor_x, ratio_y = grid_y - floor_y, float ratio_x = grid_x - floor_x, ratio_y = grid_y - floor_y,
z1 = bed_level_grid[floor_x + half][floor_y + half], z1 = bed_level_grid[floor_x + half_x][floor_y + half_y],
z2 = bed_level_grid[floor_x + half][floor_y + half + 1], z2 = bed_level_grid[floor_x + half_x][floor_y + half_y + 1],
z3 = bed_level_grid[floor_x + half + 1][floor_y + half], z3 = bed_level_grid[floor_x + half_x + 1][floor_y + half_y],
z4 = bed_level_grid[floor_x + half + 1][floor_y + half + 1], z4 = bed_level_grid[floor_x + half_x + 1][floor_y + half_y + 1],
left = (1 - ratio_y) * z1 + ratio_y * z2, left = (1 - ratio_y) * z1 + ratio_y * z2,
right = (1 - ratio_y) * z3 + ratio_y * z4, right = (1 - ratio_y) * z3 + ratio_y * z4,
offset = (1 - ratio_x) * left + ratio_x * right; offset = (1 - ratio_x) * left + ratio_x * right;

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@ -139,6 +139,8 @@
#error "PREVENT_DANGEROUS_EXTRUDE is now PREVENT_COLD_EXTRUSION. Please update your configuration." #error "PREVENT_DANGEROUS_EXTRUDE is now PREVENT_COLD_EXTRUSION. Please update your configuration."
#elif defined(SCARA) #elif defined(SCARA)
#error "SCARA is now MORGAN_SCARA. Please update your configuration." #error "SCARA is now MORGAN_SCARA. Please update your configuration."
#elif defined(AUTO_BED_LEVELING_GRID_POINTS)
#error "AUTO_BED_LEVELING_GRID_POINTS is now ABL_GRID_POINTS_X and ABL_GRID_POINTS_Y. Please update your configuration."
#endif #endif
/** /**
@ -196,10 +198,10 @@
#error "You probably want to use Max Endstops for DELTA!" #error "You probably want to use Max Endstops for DELTA!"
#endif #endif
#if ENABLED(AUTO_BED_LEVELING_GRID) #if ENABLED(AUTO_BED_LEVELING_GRID)
#if (AUTO_BED_LEVELING_GRID_POINTS & 1) == 0 #if (ABL_GRID_POINTS_X & 1) == 0 || (ABL_GRID_POINTS_Y & 1) == 0
#error "DELTA requires an odd value for AUTO_BED_LEVELING_GRID_POINTS." #error "DELTA requires ABL_GRID_POINTS_X and ABL_GRID_POINTS_Y to be odd numbers."
#elif AUTO_BED_LEVELING_GRID_POINTS < 3 #elif ABL_GRID_POINTS_X < 3
#error "DELTA requires at least 3 AUTO_BED_LEVELING_GRID_POINTS." #error "DELTA requires ABL_GRID_POINTS_X and ABL_GRID_POINTS_Y to be 3 or higher."
#endif #endif
#endif #endif
#endif #endif

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@ -751,7 +751,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -734,7 +734,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -732,7 +732,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -743,7 +743,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -745,7 +745,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -768,7 +768,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -751,7 +751,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -751,7 +751,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -751,7 +751,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -749,7 +749,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -761,7 +761,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -772,7 +772,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -743,7 +743,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -751,7 +751,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -844,8 +844,9 @@
// Non-linear bed leveling will be used. // Non-linear bed leveling will be used.
// Compensate by interpolating between the nearest four Z probe values for each point. // Compensate by interpolating between the nearest four Z probe values for each point.
// Useful for deltas where the print surface may appear like a bowl or dome shape. // Useful for deltas where the print surface may appear like a bowl or dome shape.
// Works best with AUTO_BED_LEVELING_GRID_POINTS 5 or higher. // Works best with 5 or more points in each dimension.
#define AUTO_BED_LEVELING_GRID_POINTS 9 #define ABL_GRID_POINTS_X 9
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -838,8 +838,9 @@
// Non-linear bed leveling will be used. // Non-linear bed leveling will be used.
// Compensate by interpolating between the nearest four Z probe values for each point. // Compensate by interpolating between the nearest four Z probe values for each point.
// Useful for deltas where the print surface may appear like a bowl or dome shape. // Useful for deltas where the print surface may appear like a bowl or dome shape.
// Works best with AUTO_BED_LEVELING_GRID_POINTS 5 or higher. // Works best with 5 or more points in each dimension.
#define AUTO_BED_LEVELING_GRID_POINTS 9 #define ABL_GRID_POINTS_X 9
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -841,8 +841,9 @@
// Non-linear bed leveling will be used. // Non-linear bed leveling will be used.
// Compensate by interpolating between the nearest four Z probe values for each point. // Compensate by interpolating between the nearest four Z probe values for each point.
// Useful for deltas where the print surface may appear like a bowl or dome shape. // Useful for deltas where the print surface may appear like a bowl or dome shape.
// Works best with AUTO_BED_LEVELING_GRID_POINTS 5 or higher. // Works best with 5 or more points in each dimension.
#define AUTO_BED_LEVELING_GRID_POINTS 9 #define ABL_GRID_POINTS_X 9
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -842,8 +842,9 @@
// Non-linear bed leveling will be used. // Non-linear bed leveling will be used.
// Compensate by interpolating between the nearest four Z probe values for each point. // Compensate by interpolating between the nearest four Z probe values for each point.
// Useful for deltas where the print surface may appear like a bowl or dome shape. // Useful for deltas where the print surface may appear like a bowl or dome shape.
// Works best with AUTO_BED_LEVELING_GRID_POINTS 5 or higher. // Works best with 5 or more points in each dimension.
#define AUTO_BED_LEVELING_GRID_POINTS 7 #define ABL_GRID_POINTS_X 7
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -844,8 +844,9 @@
// Non-linear bed leveling will be used. // Non-linear bed leveling will be used.
// Compensate by interpolating between the nearest four Z probe values for each point. // Compensate by interpolating between the nearest four Z probe values for each point.
// Useful for deltas where the print surface may appear like a bowl or dome shape. // Useful for deltas where the print surface may appear like a bowl or dome shape.
// Works best with AUTO_BED_LEVELING_GRID_POINTS 5 or higher. // Works best with 5 or more points in each dimension.
#define AUTO_BED_LEVELING_GRID_POINTS 5 #define ABL_GRID_POINTS_X 5
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -754,7 +754,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID

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@ -747,7 +747,8 @@
// Set the number of grid points per dimension. // Set the number of grid points per dimension.
// You probably don't need more than 3 (squared=9). // You probably don't need more than 3 (squared=9).
#define AUTO_BED_LEVELING_GRID_POINTS 3 #define ABL_GRID_POINTS_X 3
#define ABL_GRID_POINTS_Y ABL_GRID_POINTS_X
#else // !AUTO_BED_LEVELING_GRID #else // !AUTO_BED_LEVELING_GRID