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Hollow cavity in solid part not exporting

Hi, all. Fairly new to Onshape and I'm having problem with this rather simple design. It's a simple box in which I want to embed magnets inside when 3D printed. The part looks correct in Onshape. The cavity appears in the translucent view and the sectional view. However, when I export the STL, the cavity is not present. Any ideas? I've linked the part below. The cavity I'm having problems with is the extrusion labeled "Magnet Pocket"

My box design

Comments

  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,686
    Must be your slicer? Exported as STL and imported back in and cavity is there.
    Senior Director, Technical Services, EMEAI
  • leonard_cassidyleonard_cassidy Member Posts: 6
    Really? I imported it both Cura and tinkercad and it's not there.
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,686
    I exported as "fine" and imported - try it.
    Senior Director, Technical Services, EMEAI
  • leonard_cassidyleonard_cassidy Member Posts: 6
    Just check it on SuperSlicer and the cavity isn't showing there either. Is it maybe an export from OnShape setting that I'm missing? Up further investigation when I export as a 3mf everything appears fine. So this makes me think my export to stl settings are off somehow but I'm not sure how.
  • NeilCookeNeilCooke Moderator, Onshape Employees Posts: 5,686
    I exported as STL and it was ok - maybe your slicer doesn't like internal volumes (if that's a thing)?
    Senior Director, Technical Services, EMEAI
  • robert_morrisrobert_morris OS Professional, Developers Posts: 168 PRO
    I just exported the STL and opened it with the latest Cura for Lulzbot, and the it looks like the magnet pockets are there.



  • leonard_cassidyleonard_cassidy Member Posts: 6
    Thanks, all. Not sure what I was doing but it seems to be working as expected now. /shrug.
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