I blogged earlier about a DIY metal 3D printer that based on an arc-welder. As you can imagine a professional-grade metal 3D printer would be just a bit different.
This new metal 3D printer, being sold by Mitsubishi, starts at $850,000. It uses a laser to melt together powdered particles of a material. This machine is not messing around – the electric bill alone must be staggering.