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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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It is just meant to be spun with your finger tip on the exposed gear, The gear ratio is right about 2-1 so approx 1/4 turn of the exposed gear results in 1/2 turn (180 degrees) of the arrow (Sorry for the prolonged silence :-( )