The Cube from 3D Systems is a good little entry-level consumer friendly 3D printer that gets a reasonably good review in the essential-reading MAKE’s Ultimate 3D Printer Guide (a free PDF version of which you can get by subscribing to the newsletter). This hack allows users to use bulk generic print reels rather than the more expensive refill cartridges from Cube; the trade-off being a loss of user-friendly experience.
The hardware adapter was printed on the Cube. One of the most beautiful things about 3D printers!