The ball bearings hammer the copper into the part ... If you have patience, you can even use electroplating as a 3D printing process.
You don’t think of hobby-grade 3D printing as a good method for creating rocket nozzles. But [Mister Highball] managed to create a copper nozzle using a common printer, a kiln, and some special ...
tom's Hardware on MSN4mon
MIT researchers make progress on 3D-printed electronics, using semiconductor-free logic gatesusage of 3D printing and a biodegradable copper-doped polymer can forego the need for semiconductors at such a small scale.
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