Bad Object Mystery

Hey Guys,

So i’m kind of struggling with this one BadObject. I just can’t seem to figure out what exactly the problem is. Maybe you have an idea. I uploaded the Rhino File.

Thanks in advance!!

Badobject.3dm (105.9 KB)

I don’t know the cause either but if Untrim is not an option, you can split it somewhere like this and it works:

I guess is a problem with the amount of curvature for a degree 2 surface.
it seems a filletEdge. maybe using blendEdge or FilletSrf instead.

Wow thank you alot! Splitting the srf solved the problem. I still haven’t quite understand why though :smiley: