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Why is this happening?? Extrude 1 did not regenerate correctly: Boolean operation failed to return a

rob_williamson179
rob_williamson179 Member Posts: 5 ✭
in Community Support

Best Answers

  • mahir
    mahir Member, Developers Posts: 1,324 ✭✭✭✭✭
    Answer ✓
    It's hard to tell without looking at the actual part studio, but it looks like you're trying to remove part of a mesh body. Whether you're adding/removing to/from a mesh/solid/surface body, Onshape doesn't like degenerate geometry. Check to make sure you're not leaving an knife edges or line to line geometry. If you share a link I'm sure someone here can take a closer look. Also check out these posting guidelines for future reference.
  • S1mon
    S1mon Member Posts: 4,456 PRO
    Answer ✓
    I would highly recommend remodeling something like this as a regular solid part since the features are so simple, but I went ahead and figured out how to fix the issue that you're having. I ended up changing the sketch a bit and using split instead. Interestingly, if I didn't add those "extra" lines outside the part, the split tried to extend the half circle to be a full circle. I have't done anything with STL/3MF imports before, so I'm really not sure how fussy they are, but anyway...



    Simon Gatrall | Product Development, Engineering, Design, Onshape | Ex- IDEO, PCH, Unagi, Carbon | LinkedIn

Answers

  • mahir
    mahir Member, Developers Posts: 1,324 ✭✭✭✭✭
    Answer ✓
    It's hard to tell without looking at the actual part studio, but it looks like you're trying to remove part of a mesh body. Whether you're adding/removing to/from a mesh/solid/surface body, Onshape doesn't like degenerate geometry. Check to make sure you're not leaving an knife edges or line to line geometry. If you share a link I'm sure someone here can take a closer look. Also check out these posting guidelines for future reference.
  • rob_williamson179
    rob_williamson179 Member Posts: 5 ✭
    Thanks.

    https://cad.onshape.com/documents/9d10afff55aa77b361e2645c/w/835dc98c86427d2e899e604c/e/3504c7ba69e98d31ca02599d?renderMode=0&uiState=63983263dc243e2ef98c0809
  • S1mon
    S1mon Member Posts: 4,456 PRO
    Answer ✓
    I would highly recommend remodeling something like this as a regular solid part since the features are so simple, but I went ahead and figured out how to fix the issue that you're having. I ended up changing the sketch a bit and using split instead. Interestingly, if I didn't add those "extra" lines outside the part, the split tried to extend the half circle to be a full circle. I have't done anything with STL/3MF imports before, so I'm really not sure how fussy they are, but anyway...



    Simon Gatrall | Product Development, Engineering, Design, Onshape | Ex- IDEO, PCH, Unagi, Carbon | LinkedIn

  • rob_williamson179
    rob_williamson179 Member Posts: 5 ✭
    S1mon said:
    I would highly recommend remodeling something like this as a regular solid part since the features are so simple, but I went ahead and figured out how to fix the issue that you're having. I ended up changing the sketch a bit and using split instead. Interestingly, if I didn't add those "extra" lines outside the part, the split tried to extend the half circle to be a full circle. I have't done anything with STL/3MF imports before, so I'm really not sure how fussy they are, but anyway...



    S1mon. I did something similar with the original sketch and it worked fine. I modeled this in Onshape originally, this was just an exercise to see how easy modifying an imported model would be. There is a chamfer at the bottom of that part, maybe that has something to do with it.

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