3D printing has been gaining a lot of popularity in the last couple of years. There’s even a DIY 3D printer community at RepRap. Since most of the parts used in these 3D printers are fairly simple, it’s possible for a 3D printer to print the parts necessary to make new 3D printers — it’s even possible to print a new 3D printer more advanced than the one doing the printing! Skynet, take note: I, for one, welcome our new self-replicating printer overlords.
In this video, we see a young man use a basic RepRap 3D printer (the “Darwin” model) to print the parts necessary to assemble a more advanced printer (the “Mendel” model). Thankfully, it still takes a human being to assemble the parts to construct the printer.