BLtouch convert settings from 2.X to 3.X, cant get it to work.



  • Hey.
    Im a bit confused about the new way to set up BLtouch on the new 3.0 firmware, can someone help me to get it right?

    Working configuration in 2.03:
    config.g
    M307 H3 A-1 C-1 D-1 ; Disable the 3th Heater
    M558 P9 H5 F500 T4000 X0 Y0 Z1 ; Set Z probe type/mode 5. H=Dive Height. F=Speed the bed moves. BLtouch

    retractprobe.g
    M280 P3 S90 I1

    deployprobe.g
    M280 P3 S10 I1

    This is config.g (generated from the online config-tool), based from my old config
    M950 S0 C"e3heat" ; create servo pin 0 for BLTouch (also tried e1heat as the generation tool suggested)
    M558 P9 C"zprobe.in+zprobe.mod" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds

    I cant get the probe to deploy/retract (M401,M402) with this config on 3.0, what am i doing wrong?

    Best Regards


  • administrators

    Your deployprobe.g/retractprobe.g is wrong. The configtool generates this and it should work:

    config.g:

    M950 S0 C"duex.e3heat"                         ; create servo pin 0 for BLTouch
    M558 P9 C"zprobe.in" H5 F120 T6000             ; set Z probe type to bltouch and the dive height + speeds
    

    deployprobe.g

    M280 P0 S10 ; deploy BLTouch
    

    retractprobe.g

    M280 P0 S90 ; retract BLTouch
    


  • It made no difference at all, M401/M402 still does nothing 😞



  • can you post your config.g, deployprobe.g and retractprobe.g ?

    don't use pin definition for duex, but try with the extension connector pin number :

    M950 S0 C"exp.8"                         ; create servo pin 8  for BLTouch
    M558 P9 C"zprobe.in" H5 F120 T6000             ; set Z probe type to bltouch and the dive height + speeds
    


  • @pipersw I have tried the configuration i posted in my first post, and i have also tried the config that "chrishamm" posted above.

    But i can repeat:
    I have tried this:
    config.g:

    M950 S0 C"duex.e3heat"                         ; create servo pin 0 for BLTouch
    M558 P9 C"zprobe.in" H5 F120 T6000             ; set Z probe type to bltouch and the dive height + speeds
    

    deployprobe.g

    M280 P0 S10 ; deploy BLTouch
    

    retractprobe.g

    M280 P0 S90 ; retract BLTouch
    

    As well as this:
    retractprobe.g

    M280 P3 S90 I1
    

    deployprobe.g

    M280 P3 S10 I1
    

    config.g

    M950 S0 C"e3heat" ; create servo pin 0 for BLTouch (also tried e1heat as the generation tool suggested)
    M558 P9 C"zprobe.in+zprobe.mod" H5 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
    


  • try this :
    config.g

    ; Z-Probe
    M950 S0 C"exp.8"                               ; create servo 0 pin 8 for BLTouch
    M558 P9 C"zprobe.in+zprobe.mod" F150 H2.5 R0.5 T2000 A10 S0.03 B0  ; set Z probe type to bltouch and the dive height + speeds
    G31 P25 X0 Y80 Z1.25                           ; Set Z probe trigger value, offset and trigger height
    

    deployprobe.g

    M280 P0 S10  ; set 10deg servo position on GPIO port 0
    

    retractprobe.g

    M280 P0 S90  ; set 90deg servo position on GPIO port 0
    

    don't use I1 with M280, and use the same port with M280 as define with M950



  • @pipersw That did the trick 🙂 "e3heat" instead of "exp.8" was the main problem. Thanks!


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