Chris,
Again the number of curves which SubCrv gives me is different from the actual curve on the surface! for example it gives me 80 curves in which there are 20 curves!
"surfaces" ? Our teacher said to place the truncation according to this relation : Capture%20d%E2%80%99%C3%A9cran%202016-05-01%20%C3%A0%2008.03.46.png I already make the five platonic polyhedrons in Rhino.
Best,
Nastia …