This video series shows how to get from CAD, to CAM, to a CNC fabricated product. The tools we will be using are SketchUp for CAD, CamBam for CAM, Mac.
The Pantograph Router (Panto-router)
For some time I've toyed with the idea of building my own cnc router, or perhaps a printer.
Testing the Maslow CNC - Popular Woodworking Magazine