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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Oh. Sorry. I have a hobbed gear. I didn't realise there was a difference. From the looks of it the main thing I'm going to have to modify is adding a channel where the set-screw extends outside the diameter of the gear.