Weird surface artifacts
Hello there!
It’s been a while since my last forum topic.
I recently upgraded my MK4s to CORE One, so far so good, i printed a couple of small parts and they seemed to be printed fine.
However, today I printed a part for a family member and I noticed some surface artifacts.
Any idea about what can be causing this? The file was sliced on the latest version of PrusaSlicer, printed on Prusament PETG (rather dry) and my Core One is running the latest firmware. I will share the 3MF in a couple of hours. The tilted orientation was a requirement, otherwise i would be printing it laying flat (saving some hours and meters).
Thanks in advance!
RE: Weird surface artifacts
Nothing weird at all. The top is the perfectly normal stair stepping from the fact its made up of discrete layers. Shallow slopes exhibit this more than steep slopes or vertical walls. The bottom mess is because you are printing overhangs and the cooling cant handle such a steep one. So the filament droops and you get a rough surface.
Would love to know why printing it flat isn't an option as looking at it (pre project attachment) just from the pics that looks like the best way to print it.
RE: Weird surface artifacts
Thank you for your answer! I was not meaning the layer stepping, rather the small bumps at the upper parts, they kinda look like veins all over the cylindrical part of the piece. Let me know if it’s also somehow related to the layer orientation!
About the print orientation, this piece is for a uni project and they (the students) specified that they wanted to print it that wat because the final part would be printed that way so… there was no going back at this point, even when I told them that in SLS or SLA it would make more sense, but not in FDM
RE: Weird surface artifacts
I will share the 3MF in a couple of hours.
Would be nice to get that indeed.
RE: Weird surface artifacts
Without the project its difficult to give anything beyond a guess. I will guess that you are using arachne though.
RE: Weird surface artifacts
Here is the 3MF file!
RE: Weird surface artifacts
Without the project its difficult to give anything beyond a guess. I will guess that you are using arachne though.
Hi! I just uploaded the 3mf project file to the thread. Yes, I was using arachne, how did you figured it out?
RE: Weird surface artifacts
I will share the 3MF in a couple of hours.
Would be nice to get that indeed.
Hi! I just uploaded the project file. Feel free to check it out 🙂
RE: Weird surface artifacts
Thanks a lot for the 3mf. Here we go for the analysis. You can see mainly two types of artifact on your part :
- Model facets
- Volumetric speed variation (probably due to the facets)
Below the Actual Volumetric Flow Rate view.
Use the 0.20mm STRUCTURAL profile instead, slower speed will help. If possible, get an exported STL with higher resolution.