level of difficulty:
This project by John Williams shows how you can make a guitar neck using a home-built CNC machine. John built the CNC machine with plans and a kit from HobbyCNC.com. (Check out www.cnczone.com for free plans). The software used was: Rhino 3D to design the neck, MeshCAM to generate the tool paths for the maching process and TurboCNC to operate the machine.
Its interesting to see how John solved the problems of alignment and holding down the parts while machining.
It would not be sensible to do it this way if you are only planning to make one or two necks, you would be better off doing it by hand. As John says: "In short, this is a $200 guitar neck with about $100,000 in labor costs thrown in for free!".