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Additional tool-change fixes (#10304)

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Followup to #10257
This commit is contained in:
GMagician 2018-04-05 00:06:33 +02:00 committed by Scott Lahteine
parent e6042a7c52
commit 21a47b50f4
1 changed files with 13 additions and 10 deletions
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17
Marlin/src/module/tool_change.cpp
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@ -398,9 +398,9 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
#endif
#if ENABLED(SWITCHING_NOZZLE)
// Always raise by at least 0.3
const float z_diff = hotend_offset[Z_AXIS][active_extruder] - hotend_offset[Z_AXIS][tmp_extruder];
current_position[Z_AXIS] += (z_diff > 0.0 ? z_diff : 0.0) + 0.3;
// Always raise by at least 1 to avoid workpiece
const float zdiff = hotend_offset[Z_AXIS][active_extruder] - hotend_offset[Z_AXIS][tmp_extruder];
current_position[Z_AXIS] += (zdiff > 0.0 ? zdiff : 0.0) + 1;
planner.buffer_line_kinematic(current_position, planner.max_feedrate_mm_s[Z_AXIS], active_extruder);
move_nozzle_servo(tmp_extruder);
#endif
@ -430,6 +430,11 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
set_bed_leveling_enabled(leveling_was_active);
#endif
#if ENABLED(SWITCHING_NOZZLE)
// The newly-selected extruder Z is actually at...
current_position[Z_AXIS] -= zdiff;
#endif
// Tell the planner the new "current position"
SYNC_PLAN_POSITION_KINEMATIC();
@ -440,15 +445,13 @@ void tool_change(const uint8_t tmp_extruder, const float fr_mm_s/*=0.0*/, bool n
constexpr bool safe_to_move = true;
#endif
#if ENABLED(SWITCHING_NOZZLE)
destination[Z_AXIS] += z_diff; // Include the Z restore with the "move back"
#endif
// Raise, move, and lower again
if (safe_to_move && !no_move && IsRunning()) {
#if DISABLED(SWITCHING_NOZZLE)
// Do a small lift to avoid the workpiece in the move back (below)
current_position[Z_AXIS] += 1.0;
planner.buffer_line_kinematic(current_position, planner.max_feedrate_mm_s[Z_AXIS], active_extruder);
#endif
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) DEBUG_POS("Move back", destination);
#endif