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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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Understand all these points which is why I've posted a number of versions including two with no outer bearings and another that allows you to insert coins as weights which can be swapped in/out to achieve the best spin... with a printed plastic bearing too much weight reduces the speed and duration. Check out my other designs... this provides a range to choose from.