MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Ah, I'm with you. I think you're after the edit -> separate shells command in Meshmixer. I put two batteries in a file because they were originally not symmetrical, and I haven't got out of the habit yet!