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Patterning Features Along a 3D Path

Patterning Features Along a 3D Path

Patterning Features Along a 3D Path

(OP)
Hello everyone, thanks in advance for any assistance on this post.

I'm designing some sheet metal parts that use 3D sketches to produce certain asymmetrical lofted features, like one would find in jet engine pylons and wing roots where they transition to the wings or airframe.

Now, with the stage set, my question is:
How do I pattern rivet holes along the edge of this lofted surface, all the while keeping the rivet holes perpindicular to a surface that transitions across work planes?
There's no common axis that I can use to run a circular pattern on. I have been able to pattern the rivet holes along the necessary 3D sketch paths, but as the surface of the part begins to curve, the patterned holes maintain their initial bore axis and become more oblique to the part surface as the pattern progresses. As you might imagine, the rivet holes wind up looking like glancing bullet holes.
Thanks, Mike Baytekk

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