In the attached file I have 7 curves. I have two long curved “rails” going left/right (red) and have four frames also in red.
I am trying to create two surfaces here. On the outer side, I can do a sweep2 or networksrf. On the inner, I can do planarsrf.
Whatever I do, these two surfaces will not join. I am curious why.Problem Sweep.3dm (3.0 MB)