It most likely is something with BobCAD. It's 3dm export and import read its own 5 inch sphere fine.

Here are 2 files. the one from MoI so you can see how I create it, and one from BobCAD. The Bob File imported into MoI produces a huge sphere far away from the origin.???

Somehow they are not compatable.

They are using "OpenNURBS toolkit version 200609070 (compiled on Oct 19 2006)" Is this far outdated or reasonable?

Mostly I can create things that dont require tolerances though for stuff that needs to be tight, I have to figure out what may be up.

Thanks for your time,
Burr