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If you need a foot, ankle or hand brace, you have several choices. You can select one from a few one-size-fits-all options or stick your appendage in cold, wet plaster to make a cast — which you’ll have to wait weeks for.

But 3D printing may be able to deliver flexible orthotics in a matter of hours.

Two companies, MHOX and CRP Group, have created what they’re calling “Generative Orthoses” using CRP Group’s polymide material (Windform GT) and a process called laser sintering. Like traditional 3D printing, laser sintering is additive, but that’s where the similarities end. It requires more expensive and complex additive printing using lasers to melt and bind layers of material into a seamless object. Traditional 3D printing may have faint ridges, which would require sanding down for comfort.

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!!!!!3DPrintedHandBrace1                                                                                                                         Image: CRP Technology

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