3D printers can now print liquid metal right into thin air Gallium is the chocolate of metals. With a melting point of 86 degrees, the stuff will literally melt in your hand, and then refreeze when you put it down. Gallium has another trick up its sleeve: it will rapidly form an oxide skin when exposed to air. This property has recently been exploited by researchers at NC State to do something pretty incredible -- print stable 3D structures from liquid ...
July 10, 2013 - ExtremeTech