Welcome to MadModder!
http://www.3ders.org/articles/20160307-chinas-first-mini-metal-3d-printer-unveiled-capable-of-3d-printing-metal-jewelry.htmlStill out of the reach of mere mortals, but it's a huge step in the right direction. When this reaches prices that small businesses can afford, model engineering as we know it, is going to be in for a big change.