fix STEP export

[roambotics_scott]

I'm not sure if this is a fillet bug or a STEP export bug, but the last handful of times I've exported files to get molds cut by ProtoLabs, I've gotten «bad file» errors at fillets.. please fix that - it is kinda a big deal

[Anonymous]

This is a geometric kernel, baby!

What did you expect? Autodesk rewrite the kernel?

[roambotics_scott]

I expect that if I extrude, draft, and fillet from a simple outline in an imported DXF it will work or if it fails it fail loudly

I expect not to have to wait a day for ProtoLabs to tell me there is something wrong

I expect that if I can just delete the fillet, re-apply it, and export again to fix it, it work in the first place