The DIYLILCNC is a do-it-yourself CNC machine. Much like open source 3D printer designs, this one is instead for a CNC machine. This one can be built for approximately USD$700. From the site:
Plans and instructions for building the DIYLILCNC are distributed freely and intended for wide distribution and modification with few restrictions. The plans are formatted to facilitate easy fabrication, especially for beginners. The DIYLILCNC can be built by an individual, a student group, or a class. Besides being immensely fun, building the DIY LIL CNC is a great way to learn about motion control and CAD/CAM/CAE.
The 2MB download includes a 65 page detailed manual taking you through all aspects of the machine's assembly and software setup, as well as the design files for all the laser-cut components. We're wondering if Ponoko has this one available on their service?