Hi all, I’m using a Anycubic Cobra 2 Max with original Anycubic PLA filament fresh out of the box. I’ve tried all other kinds of filaments as well. One observation I made is, that with transparent filament I not at all get these results, but all other colors and brands result in these irregularities. Sometimes a whole wall of e.g. a box is rough, and the wall itself is a little porous and doesnt withstand so much force anymore. At the beginning I had an occasional stripe on a big surface, which was okay, but over time I get very bad results with all walls of an object having these failures.
What I tried:
-Different Filament types and brands, all PLA
-made sure the filament doestn get stuck when fed to the extruder
-changed z-offset a bit
-cleaned mechanical moving parts, there still is some very slight jerking when moving the extruder axis

Sometimes the filament gets wrapped around and ties itself up, I wonder if that could caus the issue and how to avoid this, happy for any other Ideas as well 🙂