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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, very nice fidget spinners. easy and fast to print and cheaper that those with bearings. I found out that if the holes are too tight, an easy way to insert the nuts is to use a vise rather than a hammer.
BTW, in the customizer it is mentioned that 12.8mm is the diameter for M8. I believe it is 13mm