RepRap
From Wiki
What is RepRap
RepRap is short for Replicating Rapid-prototyper. It is the practical self-copying 3D printer - a self-replicating machine. This 3D printer builds the parts up in layers of plastic.
The RepRap project became widely known after a large press coverage in March 2005, though the idea goes back to a paper on the web written by Adrian Bowyer on 2 February 2004.
RepRap Version 1.0 "Darwin" can be built by anyone now - see the Make your own RepRap link there or on the left, and for ways to get the bits and pieces you need, see the Obtaining Parts link.
