Today I was fortunate to talk to Gabe and Virginia, at a BART station, about the unusual box they were carrying. It’s a 3D Printer , (yes, a device that can actual render your digital 3D design STL file into a physical 3D object!) created by TypeAMachines. The experience was a little surreal (like talking to someone about a time machine they’re carting through BART). I asked Gabe if he had invented it, and he explained, no, his friend had created this one, and that the technology has been around for 25 years, but a patent was keeping others from making it. Finally the patent has expired and these are being created, for about $1,200 each. Materials are about $34 per kilo.