48
Having issues with PETG. Is this bed leveling issue, bed dirty issue, wet filament issue, or something else?
(infosec.pub)
FWIW 
this post was submitted on 04 Apr 2026
48 points (98.0% liked)
3DPrinting
22202 readers
192 users here now
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
Rules
-
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
-
Be respectful, especially when disagreeing. Everyone should feel welcome here.
-
No porn (NSFW prints are acceptable but must be marked NSFW)
-
No Ads / Spamming / Guerrilla Marketing
-
Do not create links to reddit
-
If you see an issue please flag it
-
No guns
-
No injury gore posts
If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is ![]()
Moderation policy: Light, mostly invisible
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Hard to tell, most of it looks fairly good except a few spots here and there.
That could be grease on the print bed, maybe time to give it a wash? When PETG goes wrong for me, it's this 90% of the time.
I use hot water and a little detergent with a lot of rinsing. Use gloves because even clean hands leave oils behind.
With PETG it's hard to get the first layer right but if it's good the rest of the print generally goes fine.
Molten PETG is very sticky and if you get a bit stuck to the nozzle it can build up, get worse and suddenly take out a bunch of nearby lines leading to gaps in the layer like this.
To counter this PETG first layer should be:
If you can see marks left by the nozzle it's too low. The lines should have a rounded look.
It could also be wet filament, does it make popping sounds when printing?
This would be my guess as well. Those spots where it isn't sticking look like they might be where fingers have held the plate.