A Soft-Materials 3D Printer from Carnegie Mellon and Disney

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When I think of 3D printing, I think of objects that are hard, made of plastic, metal, or some synthetic material. I imagine there will be a lot of soft products made with 3D printers, but I was curious how they might be made. Recently a new kind of printer produced by researchers at Carnegie Mellon University and Disney is printing soft things. Their printer turns woolen yarns into objects. The actual printer looks a lot like a sewing

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