BLTouch and Duet wifi - can't seem to let it work

Cinny1988

@fcwilt said in BLTouch and Duet wifi - can't seem to let it work:

M558 P9 C"!zprobe.in" H5 F150 T2000 A10 R0.5 S0.3

Dear Frederick,

Thank you for your feedback.
I changed the items in the config file but now I get the error z probe already triggered at start of probing move.

Below are the contents of my deployprobe.g and retractprobe.g files
M280 P7 S10 I1
M280 P7 S90 I1

Veti

@Cinny1988 said in BLTouch and Duet wifi - can't seem to let it work:

M280 P7 S10 I1
M280 P7 S90 I1

that is rrf2 syntax.

change to
M280 P0 S10

Cinny1988

Changed the codes to
M280 P0 S10
M280 P0 S90

Currently still get the error that the probe is already triggered at start of probing move.

fcwilt

@Cinny1988 said in BLTouch and Duet wifi - can't seem to let it work:

Changed the codes to
M280 P0 S10
M280 P0 S90

Currently still get the error that the probe is already triggered at start of probing move.

Hi,

Try changing

M558 P9 C"!zprobe.in" H5 F150 T2000 A10 R0.5 S0.3

to

M558 P9 C"zprobe.in" H5 F150 T2000 A10 R0.5 S0.3

Frederick

David Green

This works for me on V3.2.2 Duet Wifi and BLTouch .

; Endstops
M574 X1 Y2 S4
M574 Z1 S2 ; configure Z-probe endstop for low end on Z

:Z-Probe
M558 P9 C"^zprobe.in" H5 F120 T3000 ; FW v3 BLTouch connected to Z probe IN pin
M950 S0 C"exp.heater5"
G31 P500 X-32 Y13 Z2.9 ; Set Z probe trigger value, offset and trigger height
M557 X15:225 Y15:225 S20 ; Define mesh grid
M915 X Y S5 R2

; Disable heaters H3-H7 to free up pins
M950 H3 C"nil"
M950 H4 C"nil"
M950 H5 C"nil"
M950 H6 C"nil"
M950 H7 C"nil"

Cinny1988

Thanks everybody for helping me out with this.

Unfortunately it's still not working. Good news is that all the errors are gone but the probe itself is not doing anything.

When sending the G30 command it now raises the bed but the probe does nothing.

David Green

@Cinny1988 Are you on the correct pin? Your picture looks like you are not on H5. Mine is on pin 9 lower connector you look like you are on H3

Cinny1988

@David-Green mine is indeed on H3

David Green

@Cinny1988 Change it over I guess either H3 or move pin

Cinny1988

Yes it finally works!
I changed the pin to H5 and adjusted the config information as shared.

Thank you all so much for the help.

fcwilt

@Cinny1988 said in BLTouch and Duet wifi - can't seem to let it work:

Yes it finally works!
I changed the pin to H5 and adjusted the config information as shared.

Thank you all so much for the help.

Glad to hear you got it all sorted.

Frederick

Phaedrux

@David-Green said in BLTouch and Duet wifi - can't seem to let it work:

; Disable heaters H3-H7 to free up pins
M950 H3 C"nil"
M950 H4 C"nil"
M950 H5 C"nil"
M950 H6 C"nil"
M950 H7 C"nil"

Freeing up pins isn't needed by default in RRF 3.1 and beyond as the pins are free to begin with. You'd only need to free them if you wanted to reconfigure one on the fly.

Likewise this is no longer needed in RRF3 either. M307 H5 A-1 C-1 D-1 ; unbind heater pin

David Green

@Phaedrux Thanks, I will amend my config.g, not that it seems to have any impact on operation.