hi michael,

i stripped the file down all the way to the one operation i'm curious how moi handles. when rhino 5 does the projection onto the cylinder, the resulting closed curve is all messed up. i have to go and edit it after the fact. i'm wondering if moi keeps the original curve structure after the projection. i set the cplane to the appropriate one. all you have to do is project the dark blue closed curve onto the cylinder. the cyan curve is what rhino 5 generates, that's no good.

thanks,

anthony

ps; i deleted all the previous files i posted, to save server space