Liquid metal printing, developed by MIT researchers, rapidly creates 3D metal structures by depositing molten aluminum along into a bed filled with microscopic glass beads. The process can produce low-resolution objects like frames for chairs and tables in minutes.
Interesting. At first I missed the video. They “inject” the alumninium into the sand by pushing the nozzle in. A pretty neat idea really.
Presumably it’s going to be patented though, so it won’t benefit many people for the next 20 years.