What types of surface artifacts are these?

What causes this?
No description
9 Replies
sherbs
sherbs2y ago
Looks like you have multiple artifacts... Some z wobble, also looks like belts either too tight or some kind of interference in movement
joj
joj2y ago
Thanks. I'll check the tensions. Also I don't think there's much z wobble at all (that's what causes z banding right?). I'm thinking it's mainly VFAs.
joj
joj2y ago
You should see how bad the z banding is on my X1 carbon:
No description
joj
joj2y ago
This particular issue isn't present above.
sherbs
sherbs2y ago
Yeah, z-banding can have various causes
joj
joj2y ago
Or at least z wobble is barely there compared to the x1. Anyway the original pic is from my v minion. Just checked the belt tension and they don't feel tight at all. Not loose but there's not really any audible pitch if I pluck them. Actually it sounds about 70 hz
blacksmithforlife
Using sound for tension doesn't mean much. You want the belts more on the loose side. You start with them just tight enough to not slap the frame when moving them use the generate belt tension graph macro for adjusting them
correct-apricot
correct-apricot2y ago
causes could be: z banding over-extrusion too low fan
correct-apricot
correct-apricot2y ago
first make sure that Z leadscrew is not oscillating and that the distance from the frame is equal from bottom to up, than try extrusion multiplier test to regulate the extrusion for that filament. I usually do the cube one: https://help.prusa3d.com/article/extrusion-multiplier-calibration_2257
Extrusion multiplier calibration | Prusa Knowledge Base
This is an advanced calibration, recommended only to experienced…
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