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.
You're absolutely right. It's DraftSight. I've tried using InkScape to make svgs, but it does weird things a lot of the time, I haven't really learned how to use it properly. But I'm grateful for the info on the ASCII dxfs. I'll use that from now on, and probably update the rest of my stuff when I have the time. DraftSight comes in an educational (student) version that's free to use, unlimited time, you only have to register once a year or so. Apparently they're trying to gain marked shares from AutoCad. I like the software. It's fairly easy to get to grips with, especially if you learn to use the short cuts.