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.
Done. Uploaded as ASCII dxf. :)
I use a free version of DrawSight, with which you can read, edit and save most kinds of dxf to almost any other kind. Very useful, if you run in to trouble with files where the creator isn't as easy to reach as I am. Just a handy tip. ;)