Hello, I’m having a problem with trying to trim a surface with another surface. The model is a propeller blade, which has some pretty complex 3D curvature (not sure if that is part of the problem), consisting of four faces. In an attempt to join them to the propeller hub (a slightly tapered cylinder), three of those faces trim just fine, but one face does not. All of these extend to the same length beyond the hub cylinder, so there should be no problem with intersecting. However, this one face shows no intersection and therefore will not split/trim at the cylinder.
I’ve checked for naked edges, checked the surface borders (using DupBorder) to visually ensure that the borders do indeed extend well beyond the cylinder, I’ve tried rebuilding the cylinder, extending it in both directions, even scaling it so that it is so large that its clearly intersecting the middle of this problem surface. Still nothing. And again, the other 3 surfaces worked just fine, which were all constructed in the same manner (2-Rail Sweep of seven cross-section curves).
I’ve literally wasted days trying to make this work. Any help would be greatly appreciated! The file is in the link below (the problem surface is the layer “PROBLEM Surface”):