here is the swept computer case fan example. it's setup to the default cartesian reference frame. I ran into a rhino issue when doing it. so i'm going to go back to the example you mentioned and see if it was rhino messing up again. I came across a really weird orient problem. some of the airfoils came out right and a bunch came out wrong. so I had to redo them to get them setup right. so it maybe that oddball angle was a rhino problem. i'll keep working on it. but the attached file may answer your question better. everything appears in order with this model.