I used Grasshopper to create a hyperbolic paraboloid then baked the lofted surface. However when I rotate a copy along the central axis in order to trim what lies under their intersection (like a groin vault), it says the trim command went through however the surface still remains. When I run the intersection function as well, it returns that there aren’t any intersections between the two surfaces despite a clear intersection. Is it a tolerance issue? I’m a bit lost here at this point.
I have both the grasshopper and rhino file attached.