I am doing some random research, thinking about buying/building a reprap, and I was wondering out of curiosity if there was a metal that could be used in a PLA capable 3D printer. PLA melts at 150-160* Celsius, so I searched for a similar melting temperature metal, and came across Indium, which has a 156* melting point. I am not familiar with the inner workings of a reprap, so I don't know if the consistency of the molten metal would cause malfunctions or inaccurate designs, but in theory (at least in my head) if a small canal were designed with PLA, the printer could fill it in with molten Indium. Naturally it is a soft material so it wouldn't be a good structure material, but as far as circuitry is concerned, would this be a possibility?
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