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Why Is my Boolean Subtract not working correctly (spur gear tool)

charles_kittler589charles_kittler589 Member Posts: 1 EDU
edited July 30 in Community Support
As the title says, when I use a spur gear as a tool to make an internal gear the internal teeth are not correct, (there are two internal gears in the part studio but only one is having this error)
https://cad.onshape.com/documents/9c536db8a82af768fcde234e/w/2f223597ac799a0b8d1bc759/e/d0b6fb91288faa434cb2bf15
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Best Answer

  • wayne_sauderwayne_sauder Member, Simulation EVP Posts: 283 PRO
    Answer ✓
    @charles_kittler589
     Your Boolean is working correctly, the outer ring gear is not created correctly. The gear where you are seeing issues is created with a strait tooth profile. I am going to guess that when you were selecting areas for your extrude you clicked on the face of the 90 tooth gear which would create the strait tooth profile. Try turning off that gear and selecting the faces of the sketch which if I understand your design was the intent. 

Answers

  • wayne_sauderwayne_sauder Member, Simulation EVP Posts: 283 PRO
    Answer ✓
    @charles_kittler589
     Your Boolean is working correctly, the outer ring gear is not created correctly. The gear where you are seeing issues is created with a strait tooth profile. I am going to guess that when you were selecting areas for your extrude you clicked on the face of the 90 tooth gear which would create the strait tooth profile. Try turning off that gear and selecting the faces of the sketch which if I understand your design was the intent. 
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