Hi Bill,

> However, if I try to export to STEP, it still separates the
> surfaces individually.

Have you tried importing the STEP file into a different program? If you're exporting to STEP using MoI and then importing back into MoI also, it's difficult to know whether the separation is happening at export time or at import time.


> If I have an MOI file that shows as a solid, is it going to show
> me the problems that are causing the export to STEP to fail?

No, there isn't anything built into the STEP exporter that would give back specific information like that.

- Michael