Notifications
Clear all

My Z Axis is stuck at the top  

  RSS
KamilKhoury
(@kamilkhoury)
Active Member
My Z Axis is stuck at the top

Hii,

I have assembled my MK3 successfully, printed the Prusa tag, Bunchy and the Dragon with the provided PLA.
I wanted to print replacements parts with PTEG i bought from Prusa.

So i did:
"Unload Filament"
"Load Filament"

The problem is that the Zaxis was raised, so after i loaded the PTEG the new position was detected as the ZERO point of Z Axis, and nothing can fix it (Calibration Z, Calibration XYZ nor Self Test)
The only way is using the wizard from the start (and wait for the extruder and the bed to cool down)

Then i have no first layer calibration, so i swap my filament using the wizard and we are back to the same issue!!!

The error message i get imediatly after i change the filament is that the bed leveling failed, but the extruder wasn't lowered in the first place!!!

Any i idea what can be the problem?

Posted : 12/11/2018 4:22 pm
KamilKhoury
(@kamilkhoury)
Active Member
Topic starter answered:
Re: My Z Axis is stuck at the top

And if i run SelfTest the Z Axis starts to raise until it hits the top, and you can hear the motor continuing to push!
Then the Top becomes the new zero!!!

Posted : 12/11/2018 4:24 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: My Z Axis is stuck at the top

Sounds like your Pinda is faulty.

The printer goes to the top. ThenoThenowers until the pinda triggers at the bed height
If the pinda is faulty. And showing triggered. Then the printer doesn't lower the extruder.

Regards joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 12/11/2018 6:01 pm
KamilKhoury
(@kamilkhoury)
Active Member
Topic starter answered:
Re: My Z Axis is stuck at the top

Is there a way for me to test if it's the pinda?
Or i have ti replace it and see?

Posted : 12/11/2018 6:54 pm
KamilKhoury
(@kamilkhoury)
Active Member
Topic starter answered:
Re: My Z Axis is stuck at the top

it does seems the PINDA is the problem, I tried to run PINDA calibration and it failed in the end.
Order a new one, waiting...

Posted : 13/11/2018 9:49 am
KamilKhoury
(@kamilkhoury)
Active Member
Topic starter answered:
Re: My Z Axis is stuck at the top

The problem is caused by the PINDA.
I ran the tests from https://help.prusa3d.com/l/en/article/3tSXh6nWJd-pinda-probe-testing
and it failed on the testing of "Testing the P.I.N.D.A. probe cable"

It seems there something lose in the cable because moving it a little bit causes the PINDA to work correctly. So mean while i have a patch. Waiting for the new PINDA

Posted : 13/11/2018 9:34 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: My Z Axis is stuck at the top

Hi Kamil,

have you checked that the Pinda connection is properly plugged in?

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 13/11/2018 10:27 pm
KamilKhoury
(@kamilkhoury)
Active Member
Topic starter answered:
Re: My Z Axis is stuck at the top

Yes,

I only toggle the cable nearest to the PINDA itself, i also made sure that all my Zip ties are not too tightly closed.
I go to "Show PINDA Status" and i see that if i touch the cable near the PINDA the Z changes from 1 to 0

Posted : 14/11/2018 7:35 am
Texy
 Texy
(@texy)
Reputable Member
Re: My Z Axis is stuck at the top

Contact support and they should send you a free replacement.
Texy

Posted : 14/11/2018 1:12 pm
Share: