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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For the most part there are only 2.5 cones engaging at a time and they do not touch both sides of the worm. There is enough clearance for slop and miss alignment.
It does not matter which direction it turns.