In China, the "Origami" was printed using a conventional projector and Power Point
Over the past few decades, scientists had discovered a number of different polymers react differently to light. Some of them harden when exposed to light, the other split or shrink. Chinese physicists have decided to use these properties for a kind of "3D-printing" with the help of a Power Point projector and computer program.
The polymer material that reacts to light, placed in a special container, projecting on it a slide, thus illuminating it with a different intensity, allowing the polymer to make the desired shape right inside the tank. Highlighting on the duration and the brightness depends on the thickness of the concrete section and its flexibility. Preparing certain slides, you can create a figure of almost any complexity.
The polymer, which used Chinese researchers bends only at very small thickness, so using it is impossible to create only a small origami, whose size is not more than a pair of centimeters.
However, this is a good foundation for the future - anyone with a home projector and Power Point can do something similar, - says physicist Dineen Fan of the University of Beijing.
Now, scientists continue to experiment with other types of polymers, trying to do something bigger and poprochnee.