NPN Probe issues

  • Duet 0.8.5 1.1.9
    NPN install on E0

    My HomeZ.G Looks Like this:

    G91 ; relative mode
    G1 Z4 F200 ; raise head 4mm to ensure it is above the Z probe trigger height
    G90 ; back to absolute mode
    G1 X110 Y102 F2000 ; put head over the centre of the bed, or wherever you want to probe
    G30 ; lower head, stop when probe triggered and set Z to trigger height

    When I use homez.g it moves to x and y properly but when G30 Executes in moves X negative until it hits the endstop and keeps going for a few MM it will move the Z - and the probe will stop the Z.

    I would like for it to use the offsets properly and probe the proper center of the bed….

    Any ideas? Below is my lines in my Config.g

    M574 X1 Y1 Z0 S1
    M208 X0 Y0 Z0 S1
    M558 P4 X0 Y0 Z1 H3 F200 T5000 R0
    G31 P500 X50 Y30 Z0


  • administrators

    1. Delete the deployprobe.g and retractprobe.g files in the /sys folder of the SD card.

    2. Most NPN Z probes need I1 in the M558 command.

  • That did it DC… thank you very much!


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