About half the time recently when printing with PLA, I see that holes or loops have a line of filament running approximately through the middle which seems to be one of the inner perimeters having detached and contracted, but is still attached on both sides. Is it a temperature thing, an extrusion thing? I can’t find a pattern. Bed adhesion is great. Bambu H2C, mostly printing with Bambu Basic PLA.

  • PhatalFlaw@lemmy.worldEnglish
    1·
    10 days ago

    It looks like that’s your first layer? Poor bed adhesion coupled with a slight under extrusion might be doing it. You could also try to slow down your first layer dramatically (50% or more slower)

    • stoicmaverick@lemmy.worldOPEnglish
      1·
      10 days ago

      It’s both first layers and higher. No pattern I can find. Bed adhesion is definitely fine, I haven’t had a single lifted corner since I started using the SuperTac plate.

      • GrindingGears@lemmy.caEnglish
        1·
        9 days ago

        I would try bumping the flow up manually a bit, and setting it to run slower. Try changing your filament to Generic in the profile too, if it’ll let you.

        Then see if you get a few clean layers trying all of this.