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[2.0.x] Add O (optional) flag to G28/G29 (#10913)

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This commit is contained in:
Robert Mendon
2018-06-11 20:51:48 -06:00
committed by Scott Lahteine
parent 2ddba201c0
commit 86170e6a66
2 changed files with 23 additions and 0 deletions
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12
Marlin/src/gcode/calibrate/G28.cpp
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@ -152,6 +152,8 @@
* None Home to all axes with no parameters.
* With QUICK_HOME enabled XY will home together, then Z.
*
* O Home only if position is unknown
*
* Rn Raise by n mm/inches before homing
*
* Cartesian/SCARA parameters
@ -170,6 +172,16 @@ void GcodeSuite::G28(const bool always_home_all) {
}
#endif
if ((axis_known_position[X_AXIS] && axis_known_position[Y_AXIS] && axis_known_position[Z_AXIS]) && parser.boolval('O')) { // home only if needed
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(LEVELING)) {
SERIAL_ECHOLNPGM("> homing not needed, skip");
SERIAL_ECHOLNPGM("<<< G28");
}
#endif
return;
}
// Wait for planner moves to finish!
planner.synchronize();