XYZ Calibration Fails after updating firmware.
 
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XYZ Calibration Fails after updating firmware.  

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aowilkie
(@aowilkie)
Eminent Member
XYZ Calibration Fails after updating firmware.

Built the printer and started the calibration. It passed the self-test and then passed the first part of xyz calibration. The extruder started digging into the bed so I stopped it and went to adjust the PINDA probe. At this point I forgot to update the firmware and did so. Now the printer doesn't go past the first step in xyz calibration.

Now the printer raises to the top, asks if the steel sheet is removed. After I select it is removed, it says the xyz calibration failed. Before I could get the extruder to move to the bottom just above the bed and then it would fail. Now the Z-axis doesn't lower at all and fails immediately. After the process fails, when I hit auto-home the print head remains at max height. When I go to live move the z-axis it says it's at +00.00 even though it's at max height.

Any suggestions? This question has been asked at http://manual.prusa3d.com/Answers , people there suggested checing the build and trapezoidal nuts which I've done and there's been no response since.

Also any way to downgrade my firmware back to the version it shipped in to try and get printing sooner if no one has a solution?

Posted : 15/01/2018 9:17 pm
stahlfabrik
(@stahlfabrik)
Honorable Member
Re: XYZ Calibration Fails after updating firmware.

You can always downgrade if that helps. The old versions are also linked on the download page as far as I remember.

Did you install the firmware for MK3? I don't even know if one COULD technically install the wrong firmware but who knows:-)

You might also try a factory reset first: Press X then quickly the knob until the reset begins. There select "all data"

Posted : 15/01/2018 9:23 pm
samuel.g5
(@samuel-g5)
New Member
Re: XYZ Calibration Fails after updating firmware.

Simply downgrading does not help really.
As you can see quite some people are having the same problem:
http://manual.prusa3d.com/Answers/View/899/Calibration+Failure%21+error+mssg+on+Z+%26+XYZ+calibration

My build is fine - not my first printer 😉

Here are my findings
Same problem as everyone else, immediate fail searching for point 1.
In addition there seems to be a difference in firmwares:
3.1.1 RC3 (as delivered) -> immediate fail
3.1.1 RC4 (tested) -> immediate fail
3.1.1 RC2 (tested) -> immediate fail
3.1.1 RC1 (testes) -> SUCCESS finding points 1,2,3 and 4
fails at refining point 1 - neverending loop
This makes me believe that my PINDA is working fine, as it successfully found 4 points with RC1

More ideas anyone ?

Posted : 17/01/2018 1:11 pm
maxx78
(@maxx78)
Estimable Member
Re: XYZ Calibration Fails after updating firmware.

I had a similiar issue. in my case there was a cable break in the pinda cable, so sometimes it worked and sometimes not.

with RC4 hold something made from metal to the probe and look if the light on the probe changes.
And wiggle the cables and watch the light on the probe.

Posted : 17/01/2018 1:49 pm
x50arm
(@x50arm)
Estimable Member
Re: XYZ Calibration Fails after updating firmware.

+1, I just had this same problem. Try wiggling the bundle coming off the E-Axis while watching the red light on the Pinda Probe. If the light goes on and off, you have found it. For me it was about an inch or so past the point of installing the zip ties and the cable didn’t show any sign of damage. I cut open the cable and had to splice the blue wire to get mine back up and running. Good luck!

Posted : 17/01/2018 4:41 pm
samuel.g5
(@samuel-g5)
New Member
Re: XYZ Calibration Fails after updating firmware.

Thanks for your input guys. However the PINDA is not the problem, it is finding all 4 points with RC1 like I said.
Problem would appear to be with later firmware revisions, engineering is looking into it I hear

Posted : 17/01/2018 11:10 pm
Ken
 Ken
(@ken-4)
Eminent Member
Re: XYZ Calibration Fails after updating firmware.


Thanks for your input guys. However the PINDA is not the problem, it is finding all 4 points with RC1 like I said.
Problem would appear to be with later firmware revisions, engineering is looking into it I hear

Has engineering solved your problem? If yes, what did they suggest?

Thanks,
Ken

Posted : 01/02/2018 8:29 pm
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