Forget plastic: Liquid metal 3D printer works at room temperature

Geek: 3D printing has been getting along just fine using assorted forms of plastic. If you want to get something 3D printed in metal, that’s possible, but it makes things much more complex and takes the process out of the realm of the hobbyist. That might not be the case for long though, as researchers at NC State have figured out how to 3D print structures using tiny liquid metal spheres, all at room temperature.

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