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Marek Olej
(@marek-olej)
Active Member
Prusament PETG issues

Hello Everyone,

I have an issue when printing any model with PETG. 
i don’t know how to call this issue but is happening randomly. 
All my settings are original not changed from prusa slicer, using freshly opened prusament. 
Already after few times belt tension, accelerometer calibration and still have this issue. 
Can someone help me with that?

Publié : 11/01/2026 7:16 am
FoxRun3D
(@foxrun3d)
Illustrious Member
RE: Prusament PETG issues

What specifically are you concerned about? An arrow or circle to indicate the spot would have been helpful.

I see a horizontal line but doesn't look like a layer shift, more like the hull line issue (just google for it). The vertical lines? From the photos I'm not sure if there are unusual, given the reflecting quality of the material.

Formerly known on this forum as @fuchsr -- https://foxrun3d.com/

Publié : 11/01/2026 1:08 pm
Marek Olej
(@marek-olej)
Active Member
Topic starter answered:
RE: Prusament PETG issues

mostly this looks like missing fillament line

Publié : 11/01/2026 1:24 pm
Marek Olej
(@marek-olej)
Active Member
Topic starter answered:
RE: Prusament PETG issues

it looks like it curls the filament or pulls it inside or nozzle starts to be dirty during printing and moved somewhere layer when printing

Publié : 11/01/2026 1:34 pm
Marek Olej
(@marek-olej)
Active Member
Topic starter answered:
RE: Prusament PETG issues

Publié : 11/01/2026 2:52 pm
hyiger
(@hyiger)
Noble Member
RE: Prusament PETG issues

This could be a temporary filament jam that resolved itself.

Publié : 11/01/2026 4:12 pm
Marek Olej
(@marek-olej)
Active Member
Topic starter answered:
RE: Prusament PETG issues

Do You know what can cause this? Currently is happening randomly on PETG and PLA. I checked already nozzle, temp is coming directly from slicer (using prusament). 

trying to get some ideas about it

Publié : 13/01/2026 7:33 pm
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