Hei,
im not sure if this is the right thread.
Well i dont know how to get rid of this cut lines. I would like to know how they appear because i have no idear ;S make one polygroup out of the mesh doesnt help…
http://root-space.eu/file/q5gqrjdg
hope u can help me 
thx
It looks like you created polygroups and then clicked “Frame Mesh” in “Stroke > Curve Functions” which will put a Curve around the border of every polygroup if the Polygroup option was enabled. To get rid of them, just click “Delete” in “Stroke > Curve Functions”. HTH
Problem solved. Even if i havent been klicking on this, to delete them worked
thx sir