In Amsterdam Dus Architects has begun construction of a 3D printed house on the side of a canal; in China 3D printers being used to produce houses from a mixture of cement and construction waste; while in the U.S. a man has printed a concrete castle in his back garden. Clearly 3D printing technology has come a long way in the 20-odd years since Chuck Hull patented the stereolithography process.

Economists have hailed 3D printing as having the potential to transform manufacturing, including construction. The Economist magazine described the technology as the next industrial revolution because of the way it will change how objects are designed and manufactured, transported and consumed. But amidst all of this hype questions are being asked as to whether the 3D printing revolution will ultimately be a sustainable technology.

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