G1 H1 Z-255 doesn't seem to work
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The homing of the Z axis with the command G1 H1 Z-255 F360 doesn't seem to work. This is my homeall.g:
; generated by RepRapFirmware Configuration Tool v2.1.8 on Mon Feb 17 2020 21:33:03 GMT+0100 (Central European Standard Time) G91 ; relative positioning G1 H2 Z5 F6000 ; lift Z relative to current position G1 H1 X-290 Y-305 F1800 ; move quickly to X or Y endstop and stop there (first pass) G1 H1 X-290 ; home X axis G1 H1 Y-305 ; home Y axis G1 X5 Y5 F6000 ; go back a few mm G1 H1 X-290 F360 ; move slowly to X axis endstop once more (second pass) G1 H1 Y-305 ; then move slowly to Y axis endstop G1 H1 Z-255 F360 ; move Z down stopping at the endstop G90 ; absolute positioning G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
Every other command in the homeall.g works if I enter them in the console window, except that one. If I replace the last three lines with:
G30 G90 G92 Z5
I get the proper homing behaviour.
But I don't understand why G1 H1 Z-255 doesn't work, am I missing something here?
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your z-min is on 0 so you can't drive in to negative areaG92 Z0
btw why you have so big negative settings?i have overseen that you use the relative positioning...
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Are you using a probe or an endstop switch?
G30 is for the probe, so if that works, you must be using a probe.
G1 H1 Z-255 will only work if you have an endstop configured and installed for Zmin.
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@Phaedrux said in G1 H1 Z-255 doesn't seem to work:
G1 H1 Z-255 will only work if you have an endstop configured and installed for Zmin.
Aaaaaah, thanks. I'm using a probe indeed (Piezo Orion).
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H2 will work with a probe. Maybe.