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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I wound up taking the extruder off. Taking the gear off the extruder motor (you have a small wrench for that), working two drops of oil into each end of the motor shaft. The ball bearings are very close to there. This made the extruder 300% better and I've hd not grinding or tearing of filament.