"IF YOU ASK Neil Gershenfeld, there may come a day, perhaps not so far in the future, when we'll no longer need manufacturers to make our products for us. Gershenfeld, a physicist and computer scientist who runs the Center for Bits and Atoms at MIT, envisions a time when many of us will have a "fabrication center" in our homes. We'll be able to download a description of, say, a toaster -- perhaps one we designed ourselves -- to our computers, and then feed the designs and the raw materials into a personal fabricator. At the push of a button, almost like hitting "print," the machine will spit it out."
Article at: http://www.boston.com/news/globe/ideas/articles/2005/01/30/how_to_make_almost_anything/