BlTouch Issues

peirof

Hi,

Until yesterday, BlTouch v3 worked correctly, I had it connected to a Duet 3 Mini, to socket io0...
But I have decided to install a screen + Due panel, looking at the documentation, it indicated that if it is connected with the 4-wire cable, you MUST connect it to Io0, if not it does not work.
So I have moved the BlTouch to Io4, changing config.g... but now it doesn't work, it does the selftest, but when you do a Home, it doesn't deplaoy

My previous configuration that DID work:

; BLTouch
M950 S0 C"io0.out"                     ; Create a servo pin on io7
M558 P9 C"io0.in" H5 F240 T10800 A5    ; set Z probe type to unmodulated and the dive height + speeds
G31 P25 X-28.00 Y-13.00 Z0.90          ; set Z probe trigger value, offset and trigger height, more Z means closer to the bed

; deployprobe.g
; Called to deploy a physical Z probe
;
M280 P0 S10															; Deploy the BLTouch pin

; Called to retract a physical Z probe
;
M280 P0 S90													; Retract the BLTouch pin

My current configuration that does NOT go:

; BLTouch
M950 S0 C"io4.out"                     ; Create a servo pin on io7
M558 P9 C"io4.in" H5 F240 T10800 A5    ; set Z probe type to unmodulated and the dive height + speeds
G31 P25 X-28.00 Y-13.00 Z0.90          ; set Z probe trigger value, offset and trigger height, more Z means closer to the bed

; deployprobe.g
; Called to deploy a physical Z probe
;
M280 P0 S10															; Deploy the BLTouch pin

; Called to retract a physical Z probe
;
M280 P0 S90													; Retract the BLTouch pin

jay_s_uk

@peirof did you upgrade to 3.4RC1? if so, this is a known issue.
use the build from here https://forum.duet3d.com/topic/27139/rrf-3-4-0beta7-5-sbc-servo-only-responding-once-after-reset/10?_=1644995776018

peirof

@jay_s_uk in this moments, not sure, but i think remenber i have 3.4.0 Beta XX??? i check after

jay_s_uk

@peirof there was an issue with beta 7 too

peirof

@jay_s_uk no... the lottery didn't win me, no... but this... let's hope it's this, it was driving me crazy

peirof

@peirof

In the post you have linked... direct to Drobox folder...

Firmware Duet v3 Mini 3.4 BlTouch

this is supposed to be the firmware, with which I have to update my Duet 3 Mini... but I have two doubts:

A- It is not in the usual format. Correct?
B- It is updated in the same way. With the DWC?

jay_s_uk

@peirof use the .uf2 and yes through DWC

peirof

@jay_s_uk
Tomorrow more..., but dont works after apply firmware...
Panel Due... only works in Io0?

droftarts

@peirof See https://docs.duet3d.com/User_manual/Connecting_hardware/Z_probe_connecting#wiring-the-bltouch

For Duet 3 Mini 5+, use IO_1, IO_2 or IO_3.

Don't use IO_4 (okay for MB6HC, but not for Mini 5+), use one of the above. It's because of pin capability, only IO_1, IO_2 and IO_3 are PWM capable. See https://docs.duet3d.com/Duet3D_hardware/Duet_3_family/Duet_3_Mini_5+_Hardware_Overview#io-port-pin-capabilities

Ian

peirof

@droftarts mmm...

The tests that I was going to do tomorrow, were in that sense, try other shockets ...

Thanks for the conformation...

Bltouch, does it work with the latest Firmware release?

Phaedrux

@peirof said in BlTouch Issues:

Bltouch, does it work with the latest Firmware release?

Yes

peirof

@droftarts solved, now works ok...!!! I have connected to io1.

Thanks