Am I seeing things? Or is SolidWorks?
I cut an Acme thread into a cylindrical body using a profile and helix. (Design intent: OD is primary dimension, hence Cut vs. Sweep.) The profile is a parallelogram - crest and root are parallel.
When viewing the finished feature, the crest and root now appears to be non-parallel. I spent most of an hour reviewing the Advanced Part Modeling Manual, trying to figure out what I'd done wrong! (I've also tested a Swept Boss on a flat cylinder: similar result.)
SW still identifies the crooked surface as a unified Face, however, so I'm going to have to trust that this is simply an illusion.
Anybody seen similar results?