BLTouch RRF3

  • Hi team,

    Just installed the BL Touch onto my Duet2 Wifi (genuine)

    Board is v1.4 running RepRapFirmware for Duet 2 WiFi/Ethernet 3.1.1 (2020-05-19b1)

    On power up the probe cycles no issues

    On homing the probe does not deploy

    All cabling is sound, and has been triple checked

    Orange wire is in pin8 on the Exp port (Heater3)

    ; Z-Probe
    M950 S0 C"exp.heater3" ; assign GPIO port 0 to heater3 on expansion connector, servo mode
    M558 P9 C"^" H3 F400 R0.2 A5 T10800 ; Set Z probe type to switch and the dive height + speeds
    G31 X28 Y5.6 Z1.68 P25 ; Set Z probe trigger value, offset and trigger height
    M557 X28:240 Y6:203 P5 ; Define mesh grid

    thank in advance


  • administrators

    What do you have in your deployprobe.g and retractprobe.g files?

    You can test deployment and retraction using M401 and M402.

  • Moderator

    Does your homeall/homez file use a G30 command to probe the bed or is it configured to use a G1 H1 Z move to seek an endstop?

    Also see:

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