3d printing

something I've been following for a while now is the ability to print, one layer at a time, real objects.
Also called Rapid-Prototyping, also called Fabbing.
The potential is really amazing.

This is one of many companies that makes them

This is printing a working flute

This is printing with sugar

This is printing an airplane wing

This is printing a house

This is printing human organs

This is testing the idea of sending robots to print a moonbase before the people arrive later.

This is a website that is collecting downloadable files you can make things with, if you have your own 3d printer.

This is a guy trying to make a printer that can print itself.