Hi Michael,

You're right. Its the seam.

But anyway, after deleting the original revolve-spline
then its the seam-curve of the revolve which distubs in my case.

Maybe I'm doing something totally wrong.
So whats the best or correct way to do this kind of operation?

Btw. is it possible to seperate optical (f.e. by color)
"seams-curves" - "intersecting curves" and "construction-splines"?


thanks
Michael