Lasers and nanoparticles combine to allow metalic 3D printing in midair

A new method of 3D printing could allow for custom printing of metal components for electronics, medical devices, and more.

from ExtremeTechExtremeTech http://www.extremetech.com/extreme/228615-lasers-and-nanoparticles-combine-to-allow-metalic-3d-printing-in-midair