Fast Company's Adele Peters shares a 3-D-printed wheelchair from London-based design agency Layer that's designed to alleviate discomfort by perfectly customizing its shape to the person using it.

To build the the chair, body mapping software takes 3-D measurements, and then the seat and footrest are made to measure with a 3-D printer. The prototype wheelchair will be unveiled during Clerkenwell Design Week in London.

"It's like molding something to the body rather than measuring something with a ruler," says Benjamin Hubert, founder of London-based design agency Layer, which spent six months working with wheelchair users, doctors, and the 3-D printing software company Materialise to design the new wheelchair. "There's a huge degree of accuracy that we're gaining by ultimately just offsetting the shape body and emulating that in the seat," he says.

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