Hi Michael,

I have some notes...

When I cut a sphere by line, which lies on the x or y axis exactly, using Boolean-Merge, -Diff and also -Isect command, the sphere is not sliced perpendicular to the xy-plane. I don't think it is bug... but maybe it is a trace of a small code mistake that might lead to real bug elsewhere...


From time to time I encounter that filleting fails on closed curve in case the small part of curve are completely eaten by fillet. On the other hand, all works fine when I separate the curve (and re-join it into two open curves), then run fillet command again.

To see an example, download a 3dm file...

Petr