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Thread wont generate

Does anyone know why the thread won't generate in this model?  

https://cad.onshape.com/documents/4b70c22d064042dcb4a84570/w/672c84848bd260f8730e4a16/e/5f4e0562e6edf5b1b8fbb3ee


Thanks,

Stephen

Best Answers

  • Options
    john_mcclaryjohn_mcclary Member, Developers Posts: 3,902 PRO
    Answer ✓
    It's because your hole is not parallel, it tapers slightly since your revolve line is slightly off

    you need to constrain your sketch better. There should be no blue lines.

    To fix this right now, just make this line vertical.
    -Select the Line, then press the letter V to add a vertical constraint
    then close the sketch


  • Options
    stephen_dewingstephen_dewing Member Posts: 23
    Answer ✓
    Thank you so much John.  It has driven me crazy.  Such a simple thing.  Great advice about restraining the sketch.  Very much appreciated.

Answers

  • Options
    john_mcclaryjohn_mcclary Member, Developers Posts: 3,902 PRO
    Answer ✓
    It's because your hole is not parallel, it tapers slightly since your revolve line is slightly off

    you need to constrain your sketch better. There should be no blue lines.

    To fix this right now, just make this line vertical.
    -Select the Line, then press the letter V to add a vertical constraint
    then close the sketch


  • Options
    stephen_dewingstephen_dewing Member Posts: 23
    Answer ✓
    Thank you so much John.  It has driven me crazy.  Such a simple thing.  Great advice about restraining the sketch.  Very much appreciated.
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