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.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/04/180424112836.htm
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