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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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simply assemble it with the short pin for the larger gear and the long pin for the small gear and arrow. it is just a couple gears that drive the always right arrow. a hand toy is all. The arrow has the illusion of always pointing right