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3D Printing In Mid-Air

Who needs one of those restrictive boxes and elaborate back-and-forth robotic mechanisms for 3D printing? Why not just print in mid-air? See this method of #3Dprinting that combines direct ink writing with up-conversion particles-assisted photopolymerization. With this method of printing ceramics, the need for support structures is eliminated.

This 3D printer is the real-life realization of a device from Things Pass By, a 1945 story by Murray Leinster. This device could be controlled to produce useful artifacts from drawings, which might lead to more graceful designs.

It makes drawings in the air following drawings it scans with photo-cells. But plastic comes out of the end of the drawing arm and hardens as it comes. This thing will start at one end of a ship or a house and build it complete to the other end, following drawings only.
(Read more about Leinster's Plastic Constructor)

Scroll down for more stories in the same category. (Story submitted 7/15/2023)

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