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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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Thanks :) Fusion 360 has a plugin that can generate involute gears. It's very nice and makes the process rather easy. I think timing belts would also work great and make the rig much quieter. At the time I found it easier to print gears for two reasons, 1) the timing pulleys for the most popular belts (GT2) are a bit difficult to print with a 0.4mm nozzle and 2) I didn't want to find/order/wait for the right timing belts.