This really is beginning to resemble a rudimentary incarnation of various SF novels I've read where the design file is the only commodity. Once you have the rendering file, "manufacturing" is just an operation of feeding files to some automated device. In this case, that's a 3D printer, maybe in the future it will be nano-assemblers.

Also, note the photo of home-version.

From models of Les Paul guitars to toy robots, 3-D printers are churning out usable products. Here’s a look at some objects that have been made from 3-D printing.