Read everything about it in our best Dallas 3D Printer guide. This process is mostly used in the high-tech metal industry and in rapid manufacturing applications. The 3D printing apparatus is usually attached to a multi-axis robotic arm and consists of a nozzle that deposits metal powder or wire on a surface and an energy source (laser, electron beam or plasma arc) that melts it, forming a solid object. Visit this site http://www.uniquesoftwaredev.com/ for more information on Dallas 3D Printer.