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Adjust BLTouch probe behavior

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Addressing #4855
- Have the pin deploy only immediately before probing
- Have the pin retract immediately after every probe
This commit is contained in:
Scott Lahteine 2016-09-20 14:37:18 -05:00
parent 13523cbf29
commit 51e42a2d77
1 changed files with 29 additions and 3 deletions
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32
Marlin/Marlin_main.cpp
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@ -1866,6 +1866,12 @@ static void clean_up_after_endstop_or_probe_move() {
#define DEPLOY_PROBE() set_probe_deployed(true)
#define STOW_PROBE() set_probe_deployed(false)
#if ENABLED(BLTOUCH)
FORCE_INLINE void set_bltouch_deployed(const bool &deploy) {
servo[Z_ENDSTOP_SERVO_NR].move(deploy ? BLTOUCH_DEPLOY : BLTOUCH_STOW);
}
#endif
// returns false for ok and true for failure
static bool set_probe_deployed(bool deploy) {
@ -1881,9 +1887,9 @@ static void clean_up_after_endstop_or_probe_move() {
// Make room for probe
do_probe_raise(_Z_PROBE_DEPLOY_HEIGHT);
// Check BLTOUCH probe status for an error
// When deploying make sure BLTOUCH is not already triggered
#if ENABLED(BLTOUCH)
if (TEST_BLTOUCH()) { stop(); return true; }
if (deploy && TEST_BLTOUCH()) { stop(); return true; }
#endif
#if ENABLED(Z_PROBE_SLED)
@ -1911,7 +1917,7 @@ static void clean_up_after_endstop_or_probe_move() {
dock_sled(!deploy);
#elif HAS_Z_SERVO_ENDSTOP
#elif HAS_Z_SERVO_ENDSTOP && DISABLED(BLTOUCH)
servo[Z_ENDSTOP_SERVO_NR].move(z_servo_angle[deploy ? 0 : 1]);
@ -1948,9 +1954,19 @@ static void clean_up_after_endstop_or_probe_move() {
if (DEBUGGING(LEVELING)) DEBUG_POS(">>> do_probe_move", current_position);
#endif
// Deploy BLTouch at the start of any probe
#if ENABLED(BLTOUCH)
set_bltouch_deployed(true);
#endif
// Move down until probe triggered
do_blocking_move_to_z(LOGICAL_Z_POSITION(z), MMM_TO_MMS(fr_mm_m));
// Retract BLTouch immediately after a probe
#if ENABLED(BLTOUCH)
set_bltouch_deployed(false);
#endif
// Clear endstop flags
endstops.hit_on_purpose();
@ -2182,11 +2198,21 @@ static void clean_up_after_endstop_or_probe_move() {
*/
static void do_homing_move(AxisEnum axis, float where, float fr_mm_s = 0.0) {
#if HOMING_Z_WITH_PROBE && ENABLED(BLTOUCH)
set_bltouch_deployed(true);
#endif
current_position[axis] = 0;
sync_plan_position();
current_position[axis] = where;
planner.buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], (fr_mm_s != 0.0) ? fr_mm_s : homing_feedrate_mm_s[axis], active_extruder);
stepper.synchronize();
#if HOMING_Z_WITH_PROBE && ENABLED(BLTOUCH)
set_bltouch_deployed(false);
#endif
endstops.hit_on_purpose();
}