Notifications
Clear all

Layer shift  

  RSS
cosmic engineer
(@cosmic-engineer)
Active Member
Layer shift

I printed  Prusa Bear MK3/S Einsy Case - MMu Remix by UnknownUser | Download free STL model | PrusaPrinters

Set up to print in orange and black.  Main case had a layer shift of about 3mm, just about usable, so did not think too much of it.

Cover had a shift about 5mm, rendering it  useless.  Tried again, layer shift 15mm.  All shifts in x axis.  Checked all belts and pulleys etc.  nothing snagged or loose.  In normal mode etc.

Printed the bottom part only in orange - so no purge block and there was no layer shift, perfect print. 

The prints with layer shift are close to perfect except for the mess caused by the layer shift.

Printed the cover this time rotated 90°.  Shift now about 3mm on y axis.  It seems when printing with MMU the gcode is driving the printer head beyond the limit of the build plate and the crash detection is not picking this up.

 

This topic was modified 7 months ago 2 times by cosmic engineer
Posted : 21/03/2021 9:35 pm
cosmic engineer
(@cosmic-engineer)
Active Member
Topic starter answered:
RE: Layer shift

further information.

sliced in cura onto an SD card.  layer shift is in the first or first and second layer

Posted : 21/03/2021 9:49 pm
cwbullet
(@cwbullet)
Illustrious Member
RE: Layer shift

I get these periodically.  It can be caused by several causes.  Check your grub screws.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 21/03/2021 10:25 pm
cosmic engineer
(@cosmic-engineer)
Active Member
Topic starter answered:
RE: Layer shift

I have checked the grub screws and all points in the layer shift article.  The layer shift is somehow related to MMU and the gcode/tool path.  I wondered if anyone ever saw (and solved) this before?

Posted : 21/03/2021 10:29 pm
cwbullet
(@cwbullet)
Illustrious Member
RE: Layer shift

@cosmic-engineer

Ok.  I have had a couple of layer shifts due to the slicer.  Make sure you do not have stacked objects in slicer.  

--------------------
Chuck H
3D Printer Review Blog...
Posted : 21/03/2021 10:47 pm
cosmic engineer
(@cosmic-engineer)
Active Member
Topic starter answered:
RE: Layer shift

Thanks Chuck,  the items are sliced one part at a time and printed separately.  2 parts with MMU exhibit layer shift that follows the longest dimension of the part.  Part that does not use MMU functionality has no layer shift.

Posted : 21/03/2021 10:51 pm
cosmic engineer
(@cosmic-engineer)
Active Member
Topic starter answered:
RE: Layer shift

sorry I meant the model was sliced in PrusaSlicer version 2.2.o +Win 64 and not cura.

 

Posted : 22/03/2021 7:08 am
Share: