z-stop not triggering
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Hi all,
Newby here, I'm afraid. I've got a DuetWifi board for a core XY printer. The z-min stop for some reason is not triggering when I query it (x and y are fine).
It is not the wiring or the switch as it is recognised by the software if connected to either x-min or y-min stops. Is there something wrong with the DuetWifi board? Do I need to re-map the input read by the software (i'm not using the max-endstops)? If so, how do I go about this?
I use the 2.02 firmware version
Thanks
Plop
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Can you post your config.g?
When you click the switch by hand does it trigger the Z endstop LED on the board?
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Just checked. The z-stop led comes on when the trigger is pressed, just like the x and y stop leds for their respective switches.
config.g and homez.g attached
Thanks
Plop
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You're configured to use a Z Probe, not an endstop.
Do you have a Z probe?
homez G91 ; relative positioning G1 H2 Z5 F6000 ; lift Z relative to current position G90 ; absolute positioning G1 X15 Y15 F6000 ; go to first probe point G30 ; home Z by probing the bedconfig ; Endstops M574 X1 Y1 S0 ; set active low and disabled endstops M574 Z1 S2 ; set endstops controlled by probe ; Z-Probe M558 P1 H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height M557 X15:215 Y15:195 S20 ; define mesh grid -
Ah - that makes sense! I do have a z-probe but I haven't got to the configuration point where that is anywhere near operational. I'll work on it. Thanks for your help! I'll learn (hopefully)
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If you need to change your config to use a Zmin endstop you'd need to make the following changes to the sections I quoted above:
homez G91 ; relative positioning G1 H1 Z-500 F6000 ; Move Z axis to endstop G1 Z3 ; back off endstop G1 H1 Z-500 F360 ; hit endstop again slowly G1 Z3 ; back off endstopconfig ; Endstops M574 X1 Y1 Z1 S0 ; set active low and disabled endstopsYou can leave the zprobe section as is, or add a ; to comment it out.
