Even the car industry, which pioneered factory robots and which still accounts for some 60% of their use, now makes different models on the same assembly line.

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What if, says Ismail (who incidentally was wearing a 3D printed belt) you combined 3D printing, robots and the housing industry?

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He estimates that the industry is three to five years away from rolling out PC robots.

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Last month, Japan's ministry of trade and industry announced a set of safety guidelines for home and office robots.

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Industry had become so productive (say, everything is made by robots) that this became true.

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