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PETG seam - good and bad on same object  

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Constantin
(@constantin-2)
Eminent Member
PETG seam - good and bad on same object

Hello,

I'm striggling with the seam on the picture. 2/3rd of the upper seem looks great. However, the lower leam is underextruded (the printer leaves a gap of about 1-2 mm). Now I'm wondering how to fix that. I already worked with the "force seam" tool to relocate the seam - but the seam in the new location also has no extrusion (about 2 mm of outer perimeter is missing). There is no change if the seam is in a corner or other side.

I'm wodering how to fix that, because I don't want to change the beautiful upper seam.

Many thanks for any suggestions :),

Constantin Trautmann

 

Posted : 29/06/2022 11:48 am
Constantin
(@constantin-2)
Eminent Member
Topic starter answered:
RE: PETG seam - good and bad on same object

De-retraction seems to be the issue to look at. I'll keep posted what changes helped to help in case someone has similar problems.

(used prusa gcode viewer, and the upper part has no deretraction)

Posted : 29/06/2022 5:39 pm
Szabi
(@szabi)
New Member
RE: PETG seam - good and bad on same object

 

Posted by: @constantin-2

De-retraction seems to be the issue to look at. I'll keep posted what changes helped to help in case someone has similar problems.

(used prusa gcode viewer, and the upper part has no deretraction)

Hi Constantin, any update on this? Hopefully you found a solution!

Posted : 10/08/2022 7:01 am
Constantin
(@constantin-2)
Eminent Member
Topic starter answered:
RE: PETG seam - good and bad on same object

Sorry for my very late reply. I never found a 100% fix for the issue. With the recent slicer update by prusa it got a bit better, but it still is visible. Sorry I don't have any more positive news, even one year later :).

Posted : 13/06/2023 12:16 pm
Szabi
(@szabi)
New Member
RE: PETG seam - good and bad on same object

No problem at all! I switched to a higher production brand, so not an issue anymore.

Posted : 14/06/2023 1:04 am
Cope Jonsson
(@cope-jonsson)
Member
RE: PETG seam - good and bad on same object

Have you turned off retract on layer change, that worked for me

Posted : 20/11/2023 3:01 pm
Constantin
(@constantin-2)
Eminent Member
Topic starter answered:
RE: PETG seam - good and bad on same object

This is a very late reply - but I wanted to share what fixed my problem. Apparently, the Arachne perimeter generation doesn't do well with the 0.6 mm nozzle. I just needed to "downgrade" to classic and the issue was solved.

 

Happy printing and all the best,

Constantin

Posted : 18/05/2024 7:52 pm
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