Hi Peter, thanks for sending it, I'll be testing that holder part to see what is happening there.

But yeah I see that your units are set to millimeters, so that makes you run into the problem where SketchUp just does not handle millimeters units very well since it discards any polygons smaller than 0.0254 millimeters in size (that is 0.001 inches in millimeters).

It's a pretty big limitation in SketchUp.... I mean it is very easy to get a polygon around 0.03 units in size when some rounded pieces like fillets get subdivided into polygons.


I'm not really exactly sure how to best deal with this problem.


Basically some choices are to either scale the model up in size automatically when you choose millimeters or centimeters as the units, or I can try to collapse small polygons down to kind of "seal off" those holes rather than having small polygons.

But neither one of these options is really that great - an automatic scaling factor will probably make people report it to me as a bug that their objects are getting scaled, and the "collapse holes" method will probably make for a rough shape in those fillets, making people report a bug that their smaller fillets do not look good.


Which method do you think would be better?


I guess I can preserve scale or I can preserve shape, but not both.


- Michael