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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just printed the timing gears for the valve train. Lots of friction there. Also same the piston assembly thru the piston chambers. Lots of sanding there. But the valve train is the hardest. If the gears are not perfectly aligned and the holes are slightly off center, lots of friction.