So this guy has come up with a way of 3d printing quite cheaply with a laser and light sensitive resin / emulsion.

Look quite cool.

http://www.kickstarter.com/projects/...printer-and-sc

And he's looking to engage / collaborate with laser hobbyists. (Maybe improve the efficiency of the printer / find ways of controlling lasers cheaper?)

http://youtu.be/LnPqw8A4gJQ