text: Additive manufacturing - 3D printers will change manufacturing | Leaders | The Economist
  Sceptics doubt the technology can be used for mass production. Just wait
  LeadersJun 29th 2017 edition
  MANUFACTURING advances often take time to catch on. Only later does their real significance become apparent. The flying shuttle, invented in 1733 by John Kay, a British weaver, allowed the production of wider pieces of cloth. Because its movement could be mechanised, the shuttle later became one of the innovations which paved the way for the Industrial Revolution. In 1913 Henry Ford brought motoring to the masses by making his Model T on a moving assembly line; but it was Ransom Olds, a decade earlier, who had come up with the idea of an assembly line to boost production of the Olds Curved Dash. Throughout the 1980s factory bosses scratched their heads over Taiichi Ohno's Toyota Production System and its curious methods, such as the just-in-time delivery of parts. Now it is the global benchmark for factory efficiency.
  Some of the new methods of 3D printing now emerging show that its shortcomings can be overcome (see article). Adidas, for one, has started to use a remarkable form of it called "digital light synthesis" to produce the soles of trainers, pulling them fully formed from a vat of liquid polymer. The technique will be used in a couple of new and highly automated factories in Germany and America to bring 1m pairs of shoes annually to market much more quickly than by conventional processes. A new technique called bound-metal deposition has the potential to change the economics of metal printing, too, by building objects at a rate of 500 cubic inches an hour, compared with 1-2 cubic inches an hour using a typical laser-based metal printer.
  This article appeared in the Leaders section of the print edition under the headline "3D printers will change manufacturing"