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Merge pull request #4875 from thinkyhead/rc_bltouch_update

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Use probe clearance for bump when homing Z with probe
This commit is contained in:
Scott Lahteine 2016-09-22 16:57:08 -05:00 committed by GitHub
commit 1370d9a52b
1 changed files with 10 additions and 2 deletions
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12
Marlin/Marlin_main.cpp
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@ -2256,12 +2256,20 @@ static void homeaxis(AxisEnum axis) {
if (axis == Z_AXIS) stepper.set_homing_flag(true); if (axis == Z_AXIS) stepper.set_homing_flag(true);
#endif #endif
// When homing Z with probe respect probe clearance
const float bump = axis_home_dir * (
#if HOMING_Z_WITH_PROBE
(axis == Z_AXIS) ? max(Z_CLEARANCE_BETWEEN_PROBES, home_bump_mm(Z_AXIS)) :
#endif
home_bump_mm(axis)
);
// 1. Fast move towards endstop until triggered // 1. Fast move towards endstop until triggered
// 2. Move away from the endstop by the axis HOME_BUMP_MM // 2. Move away from the endstop by the axis HOME_BUMP_MM
// 3. Slow move towards endstop until triggered // 3. Slow move towards endstop until triggered
do_homing_move(axis, 1.5 * max_length(axis) * axis_home_dir); do_homing_move(axis, 1.5 * max_length(axis) * axis_home_dir);
do_homing_move(axis, -home_bump_mm(axis) * axis_home_dir); do_homing_move(axis, -bump);
do_homing_move(axis, 2 * home_bump_mm(axis) * axis_home_dir, get_homing_bump_feedrate(axis)); do_homing_move(axis, 2 * bump, get_homing_bump_feedrate(axis));
#if ENABLED(Z_DUAL_ENDSTOPS) #if ENABLED(Z_DUAL_ENDSTOPS)
if (axis == Z_AXIS) { if (axis == Z_AXIS) {