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.

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in the movie 'Kellys heros' a US halftrack has a large stubby cannon, mortar or rocket launcher mounted on top center looks like a 6 or 8 inch bore. I dont see this version in the packs.