Threads on an arc

[jwalsh1]

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!

 

[lmcchesney]

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.

 

[jwalsh1]

Thanks! Thats a great idea.

J