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Mk3 loses its home after stopping a print  

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davide.imperati
(@davide-imperati)
Active Member
RE: Mk3 loses its home after stopping a print

@steven-arm-1

Collision detection is faulty.

Grease the axis and disable collision detection. It might lead to a few failed prints, but most of the cases it prints well.

Posted : 25/01/2020 11:46 am
glv
 glv
(@glv)
New Member
RE: Mk3 loses its home after stopping a print

Hello folks!

My MK3S also loses its home after stopping a print.

Is there a resolution to this?

I was planning on getting a second printer but this is now on hold until I can resolve this issue.

This is with the Prusa examples.

Please advise on steps to resolve this and I will report back.

 

Posted : 29/02/2020 10:32 pm
nilok
(@nilok)
Estimable Member
RE: Mk3 loses its home after stopping a print

Please describe YOUR issue.  Is your printer losing home after you stop a print?  After it fails? Are you using the menu to stop it, or the reset button?  Is it failing after a power loss?  Can you consistently reproduce this problem or is it happening occasionally?  Can you provide a video of the failure and what happens after.....or starting a new print with the incorrect or missing home?

Are you seeing collision detection errors on the X or Y axis?  Have you tried disabling the collision detection?  Was it a Kit or assembled by Prusa.  How old is it?

If you wait on your printer order, that means my next one will get here faster....thanks!!

Is your printer grinding? Bearings squeaking? Motors smoking?
Step 1) Wash your Steel Sheet
Step 2) Return to Step 1

Posted : 29/02/2020 11:01 pm
glv
 glv
(@glv)
New Member
RE: Mk3 loses its home after stopping a print

@nilok

Too many questions. 🙂

I am happy with the printer overall. 

I came across this discussion and gave it some maintenance (clean and lubrication):

https://github.com/prusa3d/Prusa-Firmware/issues/1580

I will report back.

Posted : 01/03/2020 1:09 am
Peter M
(@peter-m)
Noble Member
RE: Mk3 loses its home after stopping a print

-Try to reset your printer, search on the forum for how to do this, then your printer is like a new one, and you have to do xyz calibration, like in the beginning.

Reset helps so you are 100% certain that no bad info stays in the printer.(from your older xyz calibration).

-ry older firmware.

This post was modified 5 years ago by Peter M
Posted : 01/03/2020 9:21 pm
Ken L
(@ken-l)
New Member
RE: Mk3 loses its home after stopping a print

All,  

    I just want to add my name to the list.  I canceled a print while the bed was still heating because I thought I selected the wrong stl file (on SD card).  After I re-started the print from the SD, mesh bed leveling started in the back of Y and dragged along the bed.  This is not the first time, but previously I blamed it on my Octoprint (Pi Zero W), then a loose x belt, then a loose y belt.  Even after fixing those, the problem persists unless a full self-test or XYZ calibration is done.  I do not understand why a "stop print" command would have this effect, but it is apparent that it re-homes to the nearest sensor wherever it is stopped by the user.  I'm not sure if there is a fix action, but I am glad I found this post to validate that I am not the only one experiencing it.   

Posted : 26/03/2020 1:15 am
mrPickles
(@mrpickles)
New Member
RE: Mk3 loses its home after stopping a print

Same exact issue. Brand new printer. Two successful prints but I selected the wrong one from SD card and cancelled with the 'X' and it won't rehome. 

Posted : 31/01/2022 2:04 pm
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