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.
This STL is not manifold. It really should have been run through an STL fixer before being featured on the front page. Every time I try to slice it with KISSlicer, it crashes. I uploaded the STL to netfabb's fixer and it slices fine now.
Also, re: the comment below, is this featured object really someone else's design? Wow.