“This may be the first time 3-D printing is the subject of legislation, but it certainly won’t be the last. The technology allows for the production of objects by depositing thin layers of materials. The process is called additive manufacturing, which stands in opposition to subtractive manufacturing, the traditional process in which objects are produced at factories by making small parts out of larger pieces of material, like sheets of metal. By allowing for the on-demand production of single, customized items, the technology promises to end the system of large factories and long supply chains in the markets for many goods—and to transform the global economy.”
http://www.nationaljournal.com/daily/welcome-to-the-future-congress-takes-on-3-d-printing-20130210
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