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Threads on an arc

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jwalsh1

Industrial
Aug 8, 2003
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Can anyone help me? I need to model a part that requires me to model threads on an arc. I am having trouble finding a solution to this, and would appreciate your input. Thanks!

 
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I did this once.

Create one thread using a helical sweep in a straight line tangent to the arc.

Rotate and copy that single thread about the centerline of the arc.

It's not geometrically correct, but it makes for a pretty good visual representation.
 
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