Welcome to the Onshape forum! Ask questions and join in the discussions about everything Onshape.

First time visiting? Here are some places to start:
  1. Looking for a certain topic? Check out the categories filter or use Search (upper right).
  2. Need support? Ask a question to our Community Support category.
  3. Please submit support tickets for bugs but you can request improvements in the Product Feedback category.
  4. Be respectful, on topic and if you see a problem, Flag it.

If you would like to contact our Community Manager personally, feel free to send a private message or an email.

Circle Segmentation

ed_henseled_hensel Member Posts: 11

I am making a dust port for a uniquely sized dust port on a cnc. I got everything designed, printed and it fits great. However, it looks like crap. How do I dramatically increase the circle segmentation to smooth out the circle?

Onshape Document Link: https://cad.onshape.com/documents/4ad4910794be848fd71399a8/w/54ede51e2f75368edf0f9e80/e/04a8d5c168fc617e9228fdbe?renderMode=0&uiState=67792f76e66fb029cdbe00f9

Comments

  • MDesignMDesign Member Posts: 349 ✭✭✭

    Turn you export setting to Fine or Custom and sit it however fine you want

  • michael3424michael3424 Member Posts: 699 ✭✭✭✭

    Did you export the part as an STL file for your slicer?

    I wonder if it would help to export the part as an STEP file, assuming that your slicer can work with that file format.

    STL files are made up of traingular segments and the default is to make them a bit crude so as to minimize file size. I believe that STEP files are much more faithful to circles and curves and should give you a better approximation of the design properties.

    That's just a guess though - anybody know for sure?

  • MDesignMDesign Member Posts: 349 ✭✭✭

    Cura, a poplular slicer and basis for many others, does not accept STEP…. in the free version. Gotta pay for that. ha. . not sure about others but if the slicer does import step, in theory it would resolve segmentation issue from low res files done in formats like STL OBJ etc. BUuuuuTTttt….. what they (PrusaSlicer for example) actually do is import the step convert it to stl anyway and then slice so its really just doing the same thing and you are then controlling the resolution in the slicer (if it even allows you too) vs the export from CAD software.

  • michael3424michael3424 Member Posts: 699 ✭✭✭✭

    I know that PrusaSlicer imports STEP files and it looks like Orca Slicer does as well (maybe that's from Bambu).

    A bit of googling, however, indicates that Orca Slicer takes the STEP file and converts that to a high quality STL (mesh) file so maybe that is the same as just exporting a fine resolution STL file in the 1st place.

  • ed_henseled_hensel Member Posts: 11

    I exported it as 3mf with fine details. I will try step and stl but I am pretty sure it is an issue with the model because I can see the segmentations in the model as shown in the screenshot.

  • ed_henseled_hensel Member Posts: 11

    It looks like your right. This fixed it and it looks much better.

    Thanks for your help.

  • MDesignMDesign Member Posts: 349 ✭✭✭

    It's not a problem with the model. You can choose custom instead of fine And tell Onshape to make new triangles on a much finer scale based on different criteria.

Sign In or Register to comment.