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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It's not an easy part to print, but I haven't had any issues, and I haven't really heard much from anybody else. Is the filament actually jammed in the nozzle, or is the filament just ground down from the extruder gear due to too many retractions?