Cheap 3-D printer can produce self-folding materials

Cheap 3-D printer can produce self-folding materials Researchers have used an inexpensive 3-D printer to produce flat plastic items that, when heated, fold themselves into predetermined shapes, such as a rose, a boat or even a bunny. These self-folding plastic objects represent a first step toward products such as flat-pack furniture that assume their final shapes with the help of a heat gun. https://ift.tt/eA8V8J