No problem, Burrman! I should never post to the forum in the middle of the night, when I should be sleeping. :-)
I understand all the posts much better today!
Ron
I've been fooling around with OnShape. Uploaded a STEP file created in MoI and added some fillets, but how do you download a file in STP format, to reopen it in MoI? I'm using the browser version, not a mobile app.