We have no doubt that hundreds of times a day a hacker is watching a 3D printer spew hot ... make practical metal prints on an SLS (Selective Laser Melting) printer. You can see the video below.

[Andreas Bastian] has been working on a device that turns an off-the-shelf laser cutter into something capable of selective laser sintering ... other inexpensive 3D printer, [Andreas]’ design ...

Whether that be via the fused deposition manufacturing (FDM) seen on many plastic 3d printers, Stereolithography (SLA) using UV light to expose layers to harden a resin, or selective laser sintering ...