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 was able to fit this just about perfectly to a different hotend with a thicker groove simply heating the plastic part at the collar and pressing the hotend in place. But yes, the original design files would be pretty cool to get. :-)