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.
I printed this with no support in a Fabrikator Mini using PLA, .1mm layers, 210 deg, 100/100 feedrate and flowrate, 2mm shell thickness, and 20% infill. And it came out great! (6 hours... but what the hell. :D ) I used the "unfixed files" for kicks to see if they'd have problems like others reported, none whatsoever. I think part of it is the really sticky paper-tape base layer the Fabrikator uses. Not bad for a $180 bargain basement printer...
I also think I had such good luck because I'm using Cura slicer.