BLTouch Z offset of the toolhead does not change on duet 2 wifi.

JoergS5

@4thddoughnut please tell your firmware version.

4thddoughnut

1.21RC2 (2018-02-15 build 2) installed it some time in june

Phaedrux

@4thddoughnut said in BLTouch Z offset of the toolhead does not change on duet 2 wifi.:

M307 H3 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch M307 H4 A-1 C-1 D-1 ; Disable heater on PWM channel for BLTouch

Which pin are you using for the servo control? Usually that would be 3 or 7.

Please post your config-override.g if it exists. It's possible that you have another M307 entry there that is overriding your M307 in config.g

Also post your deployprobe.g and retractprobe.g

Also tell us what firmware version you are using. M115 to find out.

Your homez.g is configured to use an endstop and not the probe, so be careful when trying to homez by itself.

Does the BLtouch respond to M401 and M402?

Phaedrux

@4thddoughnut said in BLTouch Z offset of the toolhead does not change on duet 2 wifi.:

1.21RC2 (2018-02-15 build 2) installed it some time in june

Ok that is quite old firmware. You should definitely update.

Many things have changed since that version and your config files would require quite a few changes. It may be easier to simply use the web configurator to generate a new config set and then update the firmware along with it.

https://duet3d.dozuki.com/Wiki/Installing_and_Updating_Firmware#main

https://configtool.reprapfirmware.org/Start

IF you would rather wait to update the firmware and get the bltouch working first, please respond to my questions from the previous post.

4thddoughnut

Ok. so far nothing has happened when i home the xyz axis.

; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool on Thu Sep 06 2018 21:21:12 GMT-0700 (Pacific Daylight Time)
M280 P3 S10 I1

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool on Thu Sep 06 2018 21:21:12 GMT-0700 (Pacific Daylight Time)
M280 P3 S90 I1

servo control is in pin 7

4thddoughnut

if to be honest, the first time i updated the firmware, it was quiet a hassel, but if nothing helps i gues i have to do it from scrach again. last time i did it, it took me a whole day reading and downloading and following instructions all at the same time. gues i try it tomorrow.
thanks for the advices . just in case i ask, is ther a alternative for this problem. like a quick fix or something... need some prints to make.

Phaedrux

@4thddoughnut said in BLTouch Z offset of the toolhead does not change on duet 2 wifi.:

servo control is in pin 7

Ok if you're using pin 7 then a few things need to change.

in config.g instead of this

M307 H3 A-1 C-1 D-1                                ; Disable heater on PWM channel for BLTouch
M307 H4 A-1 C-1 D-1                                ; Disable heater on PWM channel for BLTouch

you need this:

M307 H7 A-1 C-1 D-1                                ; Disable heater on PWM channel for BLTouch

And in deploy you need this

M280 P7 S10 I1

And in retract you need this

M280 P7 S90 I1

And you need to make sure that if you have a config-override.g file that any M307 H7 commands in it are commented out.

Phaedrux

@4thddoughnut said in BLTouch Z offset of the toolhead does not change on duet 2 wifi.:

the first time i updated the firmware, it was quiet a hassel,

I understand completely. The firmware update process around that time frame was a bit challenging, but since version 2.0 it is generally much much easier and all you must do is upload a single zip file.

If and when you want to update the firmware just post again and we can work out what the easiest path would be since any update for you will require some config changes as well.

4thddoughnut

all right. try this out tomorrow and send feedback of the results here in this thread.

4thddoughnut

@Phaedrux

dang... i feel like some kind of releaf. thanks a lot... 3d printing community is a special place to get advice and help. thanks a lot mi8.

4thddoughnut

Yeah tried the easier way but no results.

some how in retractprobe.g
M280 P3 S90 I1
gave me an error message

JoergS5

@4thddoughnut please use the same P like for deploy, P7.

4thddoughnut

tried it allso out... no results

fcwilt

Hi,

I don't have the I1 parameter in my BLTouch control macros.

I have no idea if it could cause problems but it doesn't seem to be required.

As to it not working perhaps you are connected to the wrong pin?

Frederick

JoergS5

@4thddoughnut maybe we should clarify first to which firmware version you updated: 2.05.1 or 3.1.1? From the version depends which syntax for the config is necessary. Please repost the content of your config and homeall again, to know the current setting.

Please tell where you connected the BLtouch wires, so the correct config can be checked.

If you run
M98 P"config.g"
you can make a first check whether the syntax of the config is ok.

Phaedrux

Perhaps a photo of how you have the BLtouch wired would help us know which pins you are actually using.

4thddoughnut

did today my firmware update. but now i got a new problem.

JoergS5

@4thddoughnut which problem?

4thddoughnut

https://drive.google.com/file/d/1OtuOqPecRwf1bPTcOfp5exA8SeZz0wkc/view?usp=drivesdk

Phaedrux

Good job on updating the firmware. I few things to consider.

First, your version of DWC has not been updated yet. I think you will need to do it manually because it's too old to auto update along with the rest of the firmware.

Pull the SD card and use your PC to replace the contents of the existing /www/ folder with the contents of this zip file.

https://github.com/Duet3D/RepRapFirmware/releases/download/2.05.1/DuetWebControl-SD-2.0.7.zip

As for your video, I'm not sure what I'm looking at. What is on the bottom of the BLtouch pin?

Can you please post your current config.g and homing files. Several changes will be required along with the updated firmware.