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Internal cavities when slicing for 3d print.

undik_truseundik_truse Member Posts: 4
edited July 26 in Using Onshape

Hello.

I have a problem where the slicer interprets internal cavities as cavities, but I want them to have infill. (Creality print slicer)

Does anyone know what I could do to fix this in OnShape? Is there some way to make it solid?

Link to model:

https://cad.onshape.com/documents/a2d1cff13698448ff7f3bd28/w/4ddce703a80454d813cbf5cf/e/5d570e4e27eba93fda1fae8e?renderMode=0&uiState=68838fd2e4d1ae12190556b5

Screenshot From 2025-07-25 16-11-05.png Screenshot From 2025-07-25 16-11-13.png

Best Answer

  • jonathanb_sydneyjonathanb_sydney Member Posts: 23 PRO
    Answer ✓

    As the others have pointed out this is a slicer question. you need a modifier body which you can set to 100% infill or someother set of settings. plenty of good resources on the internet. such as

    another option is you can make your own modifier body that is more complex than a simple box cylinder which is all you can do in the slicer natively. If you import both bodies into the slicer, and set the second one to be a modifier body. Then (only) where it overlaps with the first body, it will apply the custom settings.

Answers

  • Ste_WilsonSte_Wilson Member Posts: 487 EDU

    I think that's a slicer question. There is usually am option on these things to select areas you don't want supports.

  • rafael_telgmannrafael_telgmann Member Posts: 137 ✭✭✭
    edited July 26

    there is no cavity in your model. I think you have to set the infill in your slicer.

    image.png
  • jonathanb_sydneyjonathanb_sydney Member Posts: 23 PRO
    Answer ✓

    As the others have pointed out this is a slicer question. you need a modifier body which you can set to 100% infill or someother set of settings. plenty of good resources on the internet. such as

    another option is you can make your own modifier body that is more complex than a simple box cylinder which is all you can do in the slicer natively. If you import both bodies into the slicer, and set the second one to be a modifier body. Then (only) where it overlaps with the first body, it will apply the custom settings.

  • undik_truseundik_truse Member Posts: 4

    Thank you!

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