I can't get the Bltouch working

Saltypetz

Here is a short video. It will not give a url.

Thank you so much for the help one day maybe I can help some else.

![alt text](<iframe src="https://player.vimeo.com/video/268481643" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe> <p><a href="https://vimeo.com/268481643">20180507_160625</a> from <a href="https://vimeo.com/user84814902">rick west</a> on <a href="https://vimeo.com">Vimeo</a>.</p>)

Phaedrux

In your homeall.g above it looks like you have a negative X coordinate for the move to position the probe.

G1 X-43.565 Y26 F6000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed

Should that not be a positive X coordinate?

Try this for a homeall.g


; homeall.g
;
G91 ; relative positioning
G1 Z5 F3000 S2 ; lift Z relative to current position
G1 S1 X-585 Y-255 F1800 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F3000 ; go back a few mm
G1 S1 X-585 Y-255 F360 ; move slowly to X and Y axis endstops once more (second pass)
G90 ; absolute positioning
G1 X100 Y100 F3000 ; go to first bed probe point and home Z
G30 ; home Z by probing the bed
G1 X0 Y0 F3000 ; return to origin
;

You also have the Axis maxima set as X580, is that correct?

Saltypetz

I just put your homeall.g and it still does the same as the video. homes X and Y, Z start but the pin goes in and out without stopping and stops before hitting the bed.
This thing is driving me crazy.

Phaedrux

Does it start flashing before it even gets to the probe point like in the video? That shouldn't happen.

Your files should match the following.

; deployprobe.g
; 
Probe deployment routine for BLTouch
;
M280 P3 S10 I1		; Set servo position to deploy

; retractprobe.g
;
; Probe retraction routine for BLTouch
;
M280 P3 S90 I1

What about that -x coordinate?

Saltypetz

Thanks for the help

Phaedrux

Sorry, but I'm kind of out of ideas at this point anyway.

All I can say is go back to the beginning. Double check wiring. Follow those guides.

Saltypetz

It weird that the probe is the only problem

Phaedrux

Do you have a mechanical end stop to use in the meantime?

It's possible that your bltouch is damaged.

You could try cleaning the pin. There's a set screw on the top to remove and adjust the pin.

Saltypetz

I have a different BLTouch I can try. How do I add a mechanical end stop to Z. I don't know how in the firmware.

Thank you

Saltypetz

I have the BLTouch on the machine just unplugged I will let you know how it goes. Do I just go back to https://configurator.reprapfirmware.org and redo the whole thing. or is there a quick fix.

Phaedrux

No you don't need to redo the configurator. You should be able to just plug the new bltouch in and see if it does the same thing.

Saltypetz

I did that it does the same thing X and Y home and with the new probe does the same thing as the video.

Phaedrux

@saltypetz said in I can't get the Bltouch working:

G31 X0 Y0 Z0 P25

Try changing this to G31 X0 Y0 Z0 P500

Scachi

@saltypetz said in I can't get the Bltouch working:

I did that it does the same thing X and Y home and with the new probe does the same thing as the video.

The probe of the BLtouch shouldn't do the dance move (in&out) all the time.
If this still happens with your new BLtouch you really should check the wiring and configuration again.

The probe should move two times out&in when the printer is powered up, then it should stay rectracted (in).
If your BLtouch does this fine the next thing to check if you can manually deploy and retract the probe with the commands:
for Deploy: M280 P3 S10 I1
for Retract: M280 P3 S90 I1

My BLTouch Z-Probe is always shown in the webinterface with a value of "0", but it works fine for me. As it is mentioned in the guides, the value may change so fast when probing that it just isn't displayed when it is triggered.

Is this is all working for you to this point ? This has to work before trying to probe the bed makes sense.

Saltypetz

Now for some reason I can't get in the wifi web page I have tried everything. Pronnterface work with the plug in and YAT. The Wifi light on the wifi board is on without turning off solid blue. I can turn it off with YAT and back on then solid again. I can't get in the Duet page with the wire pluged in.

Saltypetz

In Pronterface face it moves x and y all homes Z stops before bed then probe up and down. I still can't in the wifi. I tried all the comands.

Saltypetz

Just got back in something happen to the sd card all the files where gone just get in back on line.

Saltypetz

I must be getting close. I am going to post a few pictures. There is one problem I never had I home X and the motor keeps running like the endstop is not working.

All you have to do is add this to chrome and you can see the pictures.

https://www.dropbox.com/s/j7lr3i15hi7z7dy/20180509_130226.jpg?dl=0
https://www.dropbox.com/s/372llgg43gdg7mt/20180509_130548.jpg?dl=0

Thank you as alway for the help

Saltypetz

I have it printing with no filament but it is printing high above the bed with simplify3D. The BLT pin is down light is off. Some has to be a little for in my setting I used the other person Tevo black widow information to try to make it work i will post a video of what I have now. How do i post the video so it will shop up here.

![https://youtu.be/vcCtyz6l8gQ](image url)

Thank for any help I have been trying for weeks.

dc42

You can upload your video to YouTube and post the link here.