Notifications
Clear all

Eliminate small arcs  

  RSS
ClaudiuGalea
(@claudiugalea)
Member
Eliminate small arcs

Hello. 

I want to print some bushings and I have problems with the roundness of the part. It looks like the big circle is made from interpolated circles. How can I make more smooth and eliminate this problem? Any ideas of what settings I might make? 

Thanks.

 

Napsal : 05/02/2026 10:54 am
Walter Layher
(@walter-layher)
Noble Member
RE:

If you have access to the original CAD file for the part you can try to increase the export quality/resolution there and export the part again. If you have access to the CAD you can also try to export it in STEP format. PrusaSlicer can handle this format.
Or you can try to enable the arc fitting option in PrusaSlicer in case this is not enabled yet: Print settings > Advanced > Slicing > Arc fitting

Napsal : 05/02/2026 11:23 am
2 lidem se líbí
jan.d.slay
(@jan-d-slay)
Reputable Member
RE: Eliminate small arcs

Is this an STL file from the internet or your file from a CAD program?

A little tip: most STL files are not of very good quality (for round objects).

If you created this object yourself, export it in STEP format—you will see the difference

Prusa Core One - Comfortable height display
Prusa Core One - Fast & Clean Start Gcode
Prusa XL - Quick Start Gcode
Napsal : 05/02/2026 11:25 am
1 lidem se líbí
ClaudiuGalea
(@claudiugalea)
Member
Topic starter answered:
RE: Eliminate small arcs

right after I made the post I exported as STL with higher resolution and I can even see the changes in the Slicer . Seems much better. I will try also as step after this one. Thank you!

Napsal : 05/02/2026 11:38 am
1 lidem se líbí
jan.d.slay
(@jan-d-slay)
Reputable Member
RE: Eliminate small arcs

I will try also as step after this one.

STEP is easier to work with.You load a STEP file into the CAD program and you're ready to go. With STL, you first have to scale, convert, and adjust.

Prusa Core One - Comfortable height display
Prusa Core One - Fast & Clean Start Gcode
Prusa XL - Quick Start Gcode
Napsal : 05/02/2026 12:11 pm
Share: