search

supermerill / SuperSlicer

G-code generator for 3D printers (Prusa, Voron, Creality, etc.)
4.13k stars 519 forks source link

Artifacts on walls - arachne artifacts #3026

Open ruredi87 opened 2 years ago

ruredi87 commented 2 years ago

What happened?

I see artifacts on outer walls. Prusa does not have when using classic perimeter generator but it has a bit with arachne.

Project file & How to reproduce

Ekran görüntüsü 2022-08-04 180218 sides (2).zip

Version

latest mosaic version but also has in nightly

Operating system

windows 11

Printer model

ender 3 v2

royal32 commented 2 years ago

I also noticed this on the nightly. Loaded the same 3mf into Prusaslicer 2.5.0 Alpha 3 and saw no artifacts. This might be of interest- on this model, when i reduce "Add middle perimeter threshold" to 54% from the default 75%, the artifacts disappear. At 55% they re-appear.

SuperSlicer 2 5 59 0 Nightly-Artifacts PrusaSlicer 2 5 0 Alpha3-No Artifacts

ArachneArtifacts.3mf.zip

ruredi87 commented 2 years ago

I found the reason of issue. Mine slice resolution was 0.01mm, after I turned to its default problem is solved but I dont know why its happened.

Edit Just noticed arachne still has issue

supermerill commented 2 years ago

I think you want to deactivate/lower the model rounding precision. Thsi setting remove points if they are almost aligned. As your object has a very shallow curve, it trigger this failguard, and keep different points for different layers.

royal32 commented 2 years ago

Changing model rounding precision doesn't affect this issue for me- I tried 0, 0.000001, 0.0001, and 0.1. No change in the artifacts.

supermerill commented 2 years ago

@royal32 I don't have your project, so i can' do anything.

royal32 commented 2 years ago

Huh... i dragged the zip into the first message but it didn't actually attach the file, I'll try again. ArachneArtifacts.3mf.zip

supermerill commented 2 years ago

I removed some bugs from the archane (mostly malformed extrusion). But your problem is still here (and comes specifically from arachne). When prusa will move out of beta, i'll come back to check if it's still here. (next time open a new issue, as it collide with op's one).