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Thread: About to try Marlin1.1.0RC4...
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05-06-2016, 01:28 AM #1
- Join Date
- Apr 2015
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- Lakeport, CA.
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- 174
Hmm (again). In ROBOCOP's case, the G28 X0 Y0, if that is the actual gcode being used, should not create any z-movement at all.
MBL is disabled during most homing moves, but even that should produce no Z movement due to the loss of a previous correction. MBL IS enabled when G28 implies or specifies a Z homing operation (though not during any XY homing moves with which it is possibly combined).
For G28 operations that imply or explicitly specify Z, then in MOST cases, the Z move will be done last, after any XY moves (which is opposite the behavior ROBOCOP describes).
FWIW..., G28 X0 Y0 is one of a couple special cases for homing. It MIGHT be worth trying uncommenting the line:
//#define QUICK_HOME //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
in Configuration_adv.h
..., though I kinda doubt this will inhibit the z-move you're seeing..., since I'm thinking the G28 may NOT be the culprit.
Anyways..., 0.02USD...
Note: almost forgot: the MESH_HOME_SEARCH_Z is MOSTLY involved with the bed leveling procedure itself..., I don't think it actually is influencing anything seen during "print time".Last edited by lakester; 05-06-2016 at 01:38 AM.
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05-07-2016, 06:28 PM #2
- Join Date
- Apr 2015
- Location
- Lakeport, CA.
- Posts
- 174
Small update:
I paid attention to z-movement at the end of the past couple of prints.
There is no z-movement during the end-of-print homing operation. FWIW, I'm homing XY with separate G28 commands, i.e.,
G28 X0
G28 Y0
When I print next, I'll try it with G28 X0 Y0.
Please explain to me how to...
05-13-2024, 03:08 PM in 3D Printer Parts, Filament & Materials