Bl touch doesn't deploy

hotrodford

I have a bltouch install on a duet2. it will selftest but will not probe. if i run a m401 it say m950 no supported. running newest hardware

; Z-Probe
M950 S0 C"exp.heater3" ; create servo pin 0 for BLTouch
M558 P9 C"^zprobe.in" H3 F120 T6000 ; set Z probe type to bltouch and the dive height + speeds
G31 P25 x-8 y-15 z2
G31 P25 X-20 Y50.0 Z0.0
G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20 ; define mesh grid

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Wed Jan 13 2021 02:45:17 GMT-0600 (Central Standard Time)
;M280 P3 S10 ; deploy BLTouch
M950 S0 C"exp.heater3"

jay_s_uk

can you get an output of M115 please

Phaedrux

@hotrodford said in Bl touch doesn't deploy:

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Wed Jan 13 2021 02:45:17 GMT-0600 (Central Standard Time)
;M280 P3 S10 ; deploy BLTouch
M950 S0 C"exp.heater3"

The M950 belongs in config.g. The deploy file still needs an M280 command. The difference is that instead of M280 P3 you would have M280 P0.

Perhaps would be a good idea to generate a config file using the online tool for comparison.

https://configtool.reprapfirmware.org/Start

hotrodford

@Phaedrux i did use the on line generater

Phaedrux

@hotrodford said in Bl touch doesn't deploy:

G31 P25 x-8 y-15 z2
G31 P25 X-20 Y50.0 Z0.0
G31 P500 X0 Y0 Z2.5 ; set Z probe trigger value, offset and trigger height

You've also got G31 3 times. Only the last one will have effect.

Here's an example

; Z-Probe
M950 S0 C"io3.out"                                 ; create servo pin 0 for BLTouch
M558 P9 C"^io3.in" H5 F120 T6000                   ; set Z probe type to bltouch and the dive height + speeds
G31 P25 X-44 Y-17 Z2                              ; set Z probe trigger value, offset and trigger height
M557 X5:190 Y5:215 S10                             ; define mesh grid

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.0 on Tue Jan 05 2021 23:45:25 GMT-0600 (Central Standard Time)
M280 P0 S10 ; deploy BLTouch

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.0 on Tue Jan 05 2021 23:45:26 GMT-0600 (Central Standard Time)
M280 P0 S90 ; retract BLTouch

hotrodford

@jay_s_uk said in Bl touch doesn't deploy:

M115

FIRMWARE_NAME: RepRapFirmware for Duet 2 WiFi/Ethernet FIRMWARE_VERSION: 2.05.1 ELECTRONICS: Duet Ethernet 1.02 or later FIRMWARE_DATE: 2020-02-09b1

Phaedrux

@hotrodford said in Bl touch doesn't deploy:

FIRMWARE_VERSION: 2.05.1

This is part of the problem. Your config file is formatted for RRF3 but your firmware is only RRF2.

This will go much smoother after updating your firmware to RRF3.

First download these zip files.
Then upload the 3.0 zip file to the system tab in the web interface.
Then after it installs the firmware and reboots, upload the 3.2 zip file.

https://github.com/Duet3D/RepRapFirmware/releases/download/3.0/Duet2and3Firmware-3.0.zip

https://github.com/Duet3D/RepRapFirmware/releases/download/3.2/Duet2and3Firmware-3.2.zip

hotrodford

@Phaedrux thanks hope this is the problem.

Phaedrux

That will get you back on track, but you'll still need to clean up your files to mimic the examples I posted.

Your pin names will stay the same. exp.heater3 and zprobe.in But you should only have one G31 command and you need to remove the M950 from your deploy and retract files.

hotrodford

Got it upgrade and the error is gone. but the bltouch will not deploy.

; Z-Probe
M950 S0 C"exp.heater3" ; 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
G31 P500 X10 Y10 Z2.5 ; set Z probe trigger value, offset and trigger height
M557 X15:215 Y15:195 S20 ; define mesh grid

; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Wed Jan 13 2021 16:04:06 GMT-0600 (Central Standard Time)
M280 P0 S10 ; deploy BLTouch

Phaedrux

@hotrodford said in Bl touch doesn't deploy:

M950 S0 C"exp.heater3

Are you sure you're connected to heater pin 3?
Photo of your wiring?
Check continuity?
Check crimps?

hotrodford

ok now i can make it deploy and retract. but when I home It . it gives me and error of zprobe already triggered.

Phaedrux

Double check your white wire as that one is the signal wire.

Is this a clone BLtouch or genuine? What version?