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    Piezo Z-Probe inverted

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    Duet Hardware and wiring
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    • CapMJKundefined
      CapMJK
      last edited by

      Hi,

      i just installed a piezo probe for my z-probe but i don't quite get it to do what i want.
      The probe is working but reversed. untriggered it is at 1000 and when triggered goes down / to zero.

      So in essence it should be fine but i do not understand how to tell the board to just take the 1000 as standard and accept a lower signal as trigger. Also invertion with the I1 or I0 doesn't change it. Changing polarity on the piezo did not change it either.

      Anyone got any idea where i am going wrong?

      Z-Probe
      M558 P3 C"^zprobe.in" I0 R0.4 F300 X0 Y0 Z0                 ; Set Z probe type to switch and the dive height + speeds
      G31 X0 Y0 Z-0.1 P600                    					; Set Z probe trigger value, offset and trigger height_text
      

      as said i tried P1, P3, I0, I1,
      changed polarization. Anything i forgot?

      SIamundefined 1 Reply Last reply Reply Quote 0
      • SIamundefined
        SIam @CapMJK
        last edited by

        @capmjk @capmjk try this

        M558 P8 C"^!zprobe.in+zprobe.mod" H2.5 F300 T12000 A1
        G31 P1000 X0 Y0 Z-0.1 
        

        Hypercube-Evolution-Hybrid, Piezo Orion, Orbiter
        Duet WiFi 1.02 or later + DueX5
        RepRapFirmware for Duet 2 WiFi/Ethernet 3.4.0beta4 (2021-09-27 11:30:36)
        Duet WiFi Server: 1.26
        Duet Web Control 3.4.0beta4 (2021-09-27)

        CapMJKundefined 1 Reply Last reply Reply Quote 0
        • CapMJKundefined
          CapMJK @SIam
          last edited by

          @siam thanks, that did it. Now i only need to find a spot where it triggers good enough for the bed but not while moving

          1 Reply Last reply Reply Quote 0
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