I have been getting these lines where there seems to be not enough filament extruded accompanied by some clocking noises (not really grinding). Recently I got a few errors about stuck filament as well.
I did a few cold pulls but there wasn’t any debris to be seen and the three ends (cht) were clearly visible.
Noises, pattern and errors persist.
Pla, core one, max layer with 0.4 nozzle.
Any help appreciated
Edit is the image not loading for everyone?


Not necessarily since the initial layers don’t have the space to be squished properly, subsequent layers can show the same problem, except they’re too close to the previous layer instead of the bed itself.
That said, the picture didn’t load before but now it does.
With the picture, this looks kinda like wet filament to me where it’ll kinda bubble here and there.
I’ve also spent way too much time hunting down underextrusion what was ultimately just the filament that had a weird undersized diameter like 1.6mm.
Diameter that’s off but consistent through the roll can be compensated for in the slicer, inconsistent diameter not so much.