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Add UNKNOWN_Z_NO_RAISE option

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With this option enabled, Z won't ever be raised until after `G28` has been completed, and it won't raise if Z becomes unknown. This is good for machines whose beds fall when Z is powered off.
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Scott Lahteine 2018-03-09 23:18:47 -06:00
parent 3b4c89e4b5
commit 419d12ca1b
3 changed files with 25 additions and 9 deletions
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2
Marlin/Configuration.h
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@ -804,6 +804,8 @@
//#define NO_MOTION_BEFORE_HOMING // Inhibit movement until all axes have been homed
//#define UNKNOWN_Z_NO_RAISE // Don't raise Z (lower the bed) if Z is "unknown." For beds that fall when Z is powered off.
//#define Z_HOMING_HEIGHT 4 // (in mm) Minimal z height before homing (G28) for Z clearance above the bed, clamps, ...
// Be sure you have this distance over your Z_MAX_POS in case.