Hi everyone! This is my first post and I’ve only been working with Rhino for about a week. So forgive my if my questions are very basic.
I’ve made a surface and extruded it to get a valid closed polysurface (see first image). I’m trying to add holes to this surface using MakeHole. This succeeds and the result looks fine, but the surface is now an “invalid polysurface” (still closed). I have a few questions:
- How much of an issue is this, giving that I’ll want to 3D-print the part?
- Was this to be expected, or more like a bug?
- Can this be avoided?
I’ve tried increasing the document tolerance from 0.001 to 0.1 just to see if it would make a difference - it didn’t.
Below is the .3dm file. The holes are added in the “holes and markings” layer. (I use these layers kind of like a history)
invalid-surface.3dm (8.8 MB)
Thanks in advance for your help.