It was on BBC telly last night (27/03/13) The One Show about 20 mins in.
Like Bazyl said. Lookup Rep Rap on this site and the net.(don't forget the space between Rep and Rap)
I think for £60, you get the plastic parts made by a RepRap machine to make your own machine, but you would need servos and electronics ?? Perhaps a 'donor' inkjet printer ??
I have seen on the net systems for £500ish, but be warned, for precision parts you may need to spend £10,000. At the moment you can 'print' plastic, wax and bone. The chase is on for metals and semiconductors so you could make electronic circuits and metal components.
Last night they made a plastic 'working' corkscrew. Of course, you would need some sort of CAD system as well. Intresting future though.
Bob
Edited By Speedy Builder5 on 28/03/2013 17:32:50