[nextparadigms]

Think of 3D printers as version 0.01 of a Star Trek replicator. It won't be until these "3D printers" use nanotechnology that we can make such complex things in one go.

Right now most of them work with plastic, but it won't be that long until they can use liquid metal, too. They should become a little more useful then.

[dwiel]

laser printers can already print metal

http://en.wikipedia.org/wiki/Selective_laser_sintering