In the attached i have two polysrfs.
Problem Intersect.3dm.zip (80.1 KB)
When I intersect, the intersection is visibly off.
I have to extend the surface to get a full intersection.
Hi @Miano,
The horizontal surface is not great (look at the curvature graph) and is made up of several surfaces joined.
If you create curves from the shorter edge (and join them), you will find two coincident control points at the end with the larger x-value. Delete one of those and sweep the resulting curve to create a replacement surface and you will get a full intersection:
HTH
Jeremy
FWIW, I had gotten the thing to work. I just share these oddities as an exercise in product improvement.