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Merge pull request #4310 from thinkyhead/rc_mbl_position_shift

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Fix position shift with MBL
master
Scott Lahteine 9 years ago committed by GitHub
parent 92757bd7b3 493d30cd97
commit 3422103863
3 changed files with 51 additions and 66 deletions
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109
Marlin/Marlin_main.cpp
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@ -7831,76 +7831,59 @@ void clamp_to_software_endstops(float target[3]) {
#if ENABLED(MESH_BED_LEVELING)
// This function is used to split lines on mesh borders so each segment is only part of one mesh area
void mesh_buffer_line(float x, float y, float z, const float e, float fr_mm_s, const uint8_t& extruder, uint8_t x_splits = 0xff, uint8_t y_splits = 0xff) {
if (!mbl.active()) {
planner.buffer_line(x, y, z, e, fr_mm_s, extruder);
set_current_to_destination();
return;
}
int pcx = mbl.cell_index_x(RAW_CURRENT_POSITION(X_AXIS)),
pcy = mbl.cell_index_y(RAW_CURRENT_POSITION(Y_AXIS)),
cx = mbl.cell_index_x(RAW_POSITION(x, X_AXIS)),
cy = mbl.cell_index_y(RAW_POSITION(y, Y_AXIS));
NOMORE(pcx, MESH_NUM_X_POINTS - 2);
NOMORE(pcy, MESH_NUM_Y_POINTS - 2);
NOMORE(cx, MESH_NUM_X_POINTS - 2);
NOMORE(cy, MESH_NUM_Y_POINTS - 2);
if (pcx == cx && pcy == cy) {
void mesh_line_to_destination(float fr_mm_m, uint8_t x_splits = 0xff, uint8_t y_splits = 0xff) {
int cx1 = mbl.cell_index_x(RAW_CURRENT_POSITION(X_AXIS)),
cy1 = mbl.cell_index_y(RAW_CURRENT_POSITION(Y_AXIS)),
cx2 = mbl.cell_index_x(RAW_POSITION(destination[X_AXIS], X_AXIS)),
cy2 = mbl.cell_index_y(RAW_POSITION(destination[Y_AXIS], Y_AXIS));
NOMORE(cx1, MESH_NUM_X_POINTS - 2);
NOMORE(cy1, MESH_NUM_Y_POINTS - 2);
NOMORE(cx2, MESH_NUM_X_POINTS - 2);
NOMORE(cy2, MESH_NUM_Y_POINTS - 2);
if (cx1 == cx2 && cy1 == cy2) {
// Start and end on same mesh square
planner.buffer_line(x, y, z, e, fr_mm_s, extruder);
line_to_destination(fr_mm_m);
set_current_to_destination();
return;
}
float nx, ny, nz, ne, normalized_dist;
if (cx > pcx && TEST(x_splits, cx)) {
nx = mbl.get_probe_x(cx) + home_offset[X_AXIS];
normalized_dist = (nx - current_position[X_AXIS]) / (x - current_position[X_AXIS]);
ny = current_position[Y_AXIS] + (y - current_position[Y_AXIS]) * normalized_dist;
nz = current_position[Z_AXIS] + (z - current_position[Z_AXIS]) * normalized_dist;
ne = current_position[E_AXIS] + (e - current_position[E_AXIS]) * normalized_dist;
CBI(x_splits, cx);
}
else if (cx < pcx && TEST(x_splits, pcx)) {
nx = mbl.get_probe_x(pcx) + home_offset[X_AXIS];
normalized_dist = (nx - current_position[X_AXIS]) / (x - current_position[X_AXIS]);
ny = current_position[Y_AXIS] + (y - current_position[Y_AXIS]) * normalized_dist;
nz = current_position[Z_AXIS] + (z - current_position[Z_AXIS]) * normalized_dist;
ne = current_position[E_AXIS] + (e - current_position[E_AXIS]) * normalized_dist;
CBI(x_splits, pcx);
}
else if (cy > pcy && TEST(y_splits, cy)) {
ny = mbl.get_probe_y(cy) + home_offset[Y_AXIS];
normalized_dist = (ny - current_position[Y_AXIS]) / (y - current_position[Y_AXIS]);
nx = current_position[X_AXIS] + (x - current_position[X_AXIS]) * normalized_dist;
nz = current_position[Z_AXIS] + (z - current_position[Z_AXIS]) * normalized_dist;
ne = current_position[E_AXIS] + (e - current_position[E_AXIS]) * normalized_dist;
CBI(y_splits, cy);
}
else if (cy < pcy && TEST(y_splits, pcy)) {
ny = mbl.get_probe_y(pcy) + home_offset[Y_AXIS];
normalized_dist = (ny - current_position[Y_AXIS]) / (y - current_position[Y_AXIS]);
nx = current_position[X_AXIS] + (x - current_position[X_AXIS]) * normalized_dist;
nz = current_position[Z_AXIS] + (z - current_position[Z_AXIS]) * normalized_dist;
ne = current_position[E_AXIS] + (e - current_position[E_AXIS]) * normalized_dist;
CBI(y_splits, pcy);
#define MBL_SEGMENT_END(A) (current_position[A ##_AXIS] + (destination[A ##_AXIS] - current_position[A ##_AXIS]) * normalized_dist)
float normalized_dist, end[NUM_AXIS];
// Split at the left/front border of the right/top square
int8_t gcx = max(cx1, cx2), gcy = max(cy1, cy2);
if (cx2 != cx1 && TEST(x_splits, gcx)) {
memcpy(end, destination, sizeof(end));
destination[X_AXIS] = mbl.get_probe_x(gcx) + home_offset[X_AXIS] + position_shift[X_AXIS];
normalized_dist = (destination[X_AXIS] - current_position[X_AXIS]) / (end[X_AXIS] - current_position[X_AXIS]);
destination[Y_AXIS] = MBL_SEGMENT_END(Y);
CBI(x_splits, gcx);
}
else if (cy2 != cy1 && TEST(y_splits, gcy)) {
memcpy(end, destination, sizeof(end));
destination[Y_AXIS] = mbl.get_probe_y(gcy) + home_offset[Y_AXIS] + position_shift[Y_AXIS];
normalized_dist = (destination[Y_AXIS] - current_position[Y_AXIS]) / (end[Y_AXIS] - current_position[Y_AXIS]);
destination[X_AXIS] = MBL_SEGMENT_END(X);
CBI(y_splits, gcy);
}
else {
// Already split on a border
planner.buffer_line(x, y, z, e, fr_mm_s, extruder);
line_to_destination(fr_mm_m);
set_current_to_destination();
return;
}
destination[Z_AXIS] = MBL_SEGMENT_END(Z);
destination[E_AXIS] = MBL_SEGMENT_END(E);
// Do the split and look for more borders
destination[X_AXIS] = nx;
destination[Y_AXIS] = ny;
destination[Z_AXIS] = nz;
destination[E_AXIS] = ne;
mesh_buffer_line(nx, ny, nz, ne, fr_mm_s, extruder, x_splits, y_splits);
destination[X_AXIS] = x;
destination[Y_AXIS] = y;
destination[Z_AXIS] = z;
destination[E_AXIS] = e;
mesh_buffer_line(x, y, z, e, fr_mm_s, extruder, x_splits, y_splits);
mesh_line_to_destination(fr_mm_m, x_splits, y_splits);
// Restore destination from stack
memcpy(destination, end, sizeof(end));
mesh_line_to_destination(fr_mm_m, x_splits, y_splits);
}
#endif // MESH_BED_LEVELING
@ -7997,11 +7980,13 @@ void mesh_buffer_line(float x, float y, float z, const float e, float fr_mm_s, c
}
else {
#if ENABLED(MESH_BED_LEVELING)
mesh_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], MMM_TO_MMS_SCALED(feedrate_mm_m), active_extruder);
if (mbl.active()) {
mesh_line_to_destination(MMM_SCALED(feedrate_mm_m));
return false;
#else
line_to_destination(MMM_SCALED(feedrate_mm_m));
}
else
#endif
line_to_destination(MMM_SCALED(feedrate_mm_m));
}
return true;
}

4
Marlin/SanityCheck.h
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@ -238,8 +238,8 @@
#error "MESH_BED_LEVELING does not yet support DELTA printers."
#elif ENABLED(AUTO_BED_LEVELING_FEATURE)
#error "Select AUTO_BED_LEVELING_FEATURE or MESH_BED_LEVELING, not both."
#elif MESH_NUM_X_POINTS > 7 || MESH_NUM_Y_POINTS > 7
#error "MESH_NUM_X_POINTS and MESH_NUM_Y_POINTS need to be less than 8."
#elif MESH_NUM_X_POINTS > 9 || MESH_NUM_Y_POINTS > 9
#error "MESH_NUM_X_POINTS and MESH_NUM_Y_POINTS must be less than 10."
#endif
#elif ENABLED(MANUAL_BED_LEVELING)
#error "MESH_BED_LEVELING is required for MANUAL_BED_LEVELING."

2
Marlin/configuration_store.cpp
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@ -67,7 +67,7 @@
* 203 z_offset (float)
* 207 mesh_num_x (uint8 as set in firmware)
* 208 mesh_num_y (uint8 as set in firmware)
* 209 G29 S3 XYZ z_values[][] (float x9, by default)
* 209 G29 S3 XYZ z_values[][] (float x9, by default, up to float x 81)
*
* AUTO BED LEVELING
* 245 M851 zprobe_zoffset (float)

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