after watching Kyle’s great video about ribbon offset, I wanted to try that to make a mould, but run into problems I can’t figure out. In the middle of the curve the offset curve changes direction, and the sweep looks very wild.
I then tried to rebuild the edge, but got a strange entry for tolerances: 1e-05, and when I changed that to 0.001, that didn’t help either. I checked the normals on the surfaces, but they were okay.
I am aware, that a lot of modelling has been done on this surface … might that be the problem?
Thanks in advance, I’ll attack the file. Best regards - Jan
ribbon-offset-challenge.3dm (3.0 MB)