Engineers at Exaddon, a technology company based in Switzerland, are 3D printing metal structures at the nanometer and micrometer scale. Their crowning achievement? A 1-mm-high replica of Michelangelo鈥檚 David made of pure copper.
鈥淲e wanted to show that we could 3D print even the most random object,鈥� says Tomaso Zambelli, an engineer at Exaddon. 鈥淎nd we wanted to make something everyone would recognize.鈥�
The key to achieving such a small structure is Exaddon鈥檚 unique process. The system consists of a standard three-electrode electrochemical cell, a device that 3D prints metal via electroplating. Electroplating uses electricity to deposit metal onto a surface in a series of layers...
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