Z-probe Not Working Properly Since Switching to RRF3



  • I use conductivity calibration on my delta printer to calibrate the build plate. I have two wires connecting to the [Z Probe] on the Duet Wifi controller. One wire connects the Z_Probe_In pin to the nozzle and the second wire connects the GND pin to the metal build plate. This has worked really well for me until I updated to RRF3 yesterday. With the nozzle not contacting the build plate, the Z-Probe now reads "1000" in the DWC.

    I read "0" in the DWC when these wires are disconnected from the Duet Wifi [Z Probe] connector. When these wires are disconnected from the board I do not read any continuity between them ensuring that the circuit is open and that the nozzle is not in contact with the bed. When I plug these wires back into the board the Z-Probe goes back to reading "1000". Does anyone have any idea why this might be happening or how I can troubleshoot this?

    Here is the line in the config.g
    M558 P5 C"!zprobe.in+zprobe.mod" H5 F120 T6000

    Thanks



  • @code7 said in Z-probe Not Working Properly Since Switching to RRF3:

    M558 P5 C"!zprobe.in+zprobe.mod" H5 F120 T6000

    Try
    M558 P5 C"^!zprobe.in+zprobe.mod" H5 F120 T6000

    or

    M558 P5 C"^!zprobe.in" H5 F120 T6000

    or

    M558 P5 C"^zprobe.in" H5 F120 T6000

    or similar variants.

    ^ is "pull up"



  • This post is deleted!


  • @Danal

    You nailed it!

    M558 P5 C"^!zprobe.in" H5 F120 T6000

    Thanks


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