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Bugfix: G28 was lifting Z-axis multiple times #3102

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jbrazio
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@jbrazio jbrazio commented Mar 7, 2016

Z-axis was being lift multiple times if Z_SAFE_HOMING was enabled and Z_RAISE_BEFORE_HOMING was greater than zero. I believe this bug must have been introduced by #3001.

The visible side effect is XY homing will be really slow because each call to HOMEAXIS() will be moving the axis plus the Z axis, in total Z will get raised 4 * Z_RAISE_BEFORE_HOMING mm.

… Z_RAISE_BEFORE_HOMING was greater than zero
@thinkyhead
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I thought that might be a potential side-effect for #3001. Now to see if this introduces a problem for some other combination…

thinkyhead added a commit that referenced this pull request Mar 7, 2016
Bugfix: G28 was lifting Z-axis multiple times
@thinkyhead thinkyhead merged commit fac85f6 into MarlinFirmware:RCBugFix Mar 7, 2016
@jbrazio jbrazio deleted the bugfix-g28-multiple-z-movements branch March 7, 2016 16:04
@jbrazio jbrazio modified the milestone: 1.1.0 Jul 18, 2016
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2 participants