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.
Looks like the files are not 'manifold' or a bit broke. Â I ran it through NetFabb free and cleaned it up and had no problem. Â Im using Slic3r in Repetier, which once sliced, had no holes and elongated nubs. :) Â Just a heads up for others that may have some strange behavior from their slicers.