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Prevent Z misaligments on tool change #16518

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merged 6 commits into from
Jan 10, 2020
Merged

Prevent Z misaligments on tool change #16518

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65acdd5
Fix 16429
GMagician Jan 4, 2020
5bf9348
Fix z misalignment when z_max reached
GMagician Jan 9, 2020
d61ec72
Limit z_max check only when limits are avaiable
GMagician Jan 9, 2020
b41f77e
Preserve current Z on abort. Fix missing semicolon.
thinkyhead Jan 10, 2020
ed14e46
Update tool_change.cpp
thinkyhead Jan 10, 2020
ec91afd
Use hard limits when no soft limits exist
thinkyhead Jan 10, 2020
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Limit z_max check only when limits are avaiable
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@GMagician
GMagician authored Jan 9, 2020
commit d61ec72beeadf8c4c1523b2cf62e4c53ee77f18b
6 changes: 4 additions & 2 deletions Marlin/src/module/tool_change.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -931,8 +931,10 @@ void tool_change(const uint8_t new_tool, bool no_move/*=false*/) {
// SWITCHING_NOZZLE_TWO_SERVOS, as both nozzles will lift instead.
current_position.z += _MAX(-diff.z, 0.0);
if (!no_move) {
// Check if Z has space to compensate at least z_offset, if not enough space abort tool change
if (current_position.z > soft_endstop.max.z) return
#if HAS_SOFTWARE_ENDSTOPS
// Check if Z has space to compensate at least z_offset, if not enough space abort tool change
if (current_position.z > soft_endstop.max.z) return
#endif

current_position.z += toolchange_settings.z_raise;
#if HAS_SOFTWARE_ENDSTOPS
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