Banding? on layers with retraction


This PSU cover has some vents - and any layer where there is a gap has some sort of artifact where the outer walls don’t line up with other layers, so presumable it is underextrueded? I have tried upping the recover length, but it doesn’t seem to make a difference (but causes blobs if I go too high).

any thoughts?


It’s hard to see in that video - would you mind posting some close-up images of the part?


Sorry should have posted, I sorted it out, I was under extruding by a fraction all over (filament diameter was out by ~ .015mm, have ordered a filament diameter sensor), and the retraction recovery amount led to correct extrusion for a while after the vents.