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Boolean with offset does not work on complicated fillet surfaces

dana_kelley262dana_kelley262 Member Posts: 11
In this document there are two Boolean. The first leaves out the two surfaces that cause a failure. The second only has the two surfaces that cause the failure.

The offset of 0.015" is being used. Without the offset it works.

Initially I selected 0.015" offset all given that is the desired result.

Why doesn't this work?


Best Answers

  • dana_kelley262dana_kelley262 Posts: 11
    Accepted Answer
    Never mind............. missed selecting the small wedged faces in the move face

Answers

  • steve_shubinsteve_shubin Member Posts: 109 ✭✭✭
    edited September 1
    @dana_kelley262

    I don’t know why the boolean with offset failed.


    But if you’re interested in a workaround,
    see the document below.


    https://cad.onshape.com/documents/68bc73df32d1e5351be70c4f/w/16f68abd9376f30ca3cdfd84/e/d7696fbbd6d958faf1c8209c
  • dana_kelley262dana_kelley262 Member Posts: 11
    Thanks for your feedback. Interesting solution. I've submitted a bug report to find out what the issue is before moving forward. 
  • steve_shubinsteve_shubin Member Posts: 109 ✭✭✭
    edited September 1
    @dana_kelley262

    I got it to work by using a single boolean — the way you wanted it to work

    I used REPLACE FACE to eliminate the lines shown below. Then I was able to use a single boolean with offset on ALL THE FACES.

    https://cad.onshape.com/documents/4ae02264d7f77c75f8239e4a/w/b96aafb51f9cc03b34ab1898/e/7e3aa785b65a1369e2142982





  • dana_kelley262dana_kelley262 Member Posts: 11
    I saw that the no offset worked but did not realize there was a second step that could be used to add the offset. So one would ask this question. Why not break it into two processes? No offset followed by adding the offset. A hack perhaps but it eliminates future head scratching and hides it from the users.

    This solution worked just fine so Ill be moving on. :)
  • dana_kelley262dana_kelley262 Member Posts: 11
    It did not quite work after all.
  • dana_kelley262dana_kelley262 Member Posts: 11
    Accepted Answer
    Never mind............. missed selecting the small wedged faces in the move face
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