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DissolvPCB enables fully recyclable 3D-printed circuit boards with liquid metal conductors
(3dprintingindustry.com)
this post was submitted on 11 Aug 2025
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Very cool, though JFC there's no way MY printer will be fine tuned enough to generate the channels. The whole process reminds me of the rednecks who pour molten aluminum down fire ant hills, in a good way. The sealing with glorified Elmer's glue is also clever.
Now all that said, you wouldn't want to make anything that's going to have much contact with water, so a lot of typical applications are risky: "My PCB is leaking!" I do wonder if you could do the same thing, but less immediately recyclable, with PLA and a 3D pen.