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  • Spot Weld Anything (Even Copper)!

    I love it. The carbon electrodes are awesome. I love how simple the whole design is. I need to do exactly two welds, aluminum to copper, ~2mm total thickness (50Ah pouch cell battery tab pos terminal) and the whole make-a-spot-welder from a microwave oven etc was looking like a pita for the scale of my need/certainty that it would work for my need (Cu to Al). So I *might* try kludging something together with carbon gouging rods, 12V batteries, and your fantastic copper clunkswitch (just coined that name). At first the clunkswitch was confusing, then realized it's all about rapidly switching high current without arcing. just slam the two faces together. I'm thinking if I stick to very few, very short bursts, I prob won't be killed by a catastrophic battery failure. hmm, the only thing I ...see more »I love it. The carbon electrodes are awesome. I love how simple the whole design is. I need to do exactly two welds, aluminum to copper, ~2mm total thickness (50Ah pouch cell battery tab pos terminal) and the whole make-a-spot-welder from a microwave oven etc was looking like a pita for the scale of my need/certainty that it would work for my need (Cu to Al). So I *might* try kludging something together with carbon gouging rods, 12V batteries, and your fantastic copper clunkswitch (just coined that name). At first the clunkswitch was confusing, then realized it's all about rapidly switching high current without arcing. just slam the two faces together. I'm thinking if I stick to very few, very short bursts, I prob won't be killed by a catastrophic battery failure. hmm, the only thing I have lying around are some sealed lead gel cels, about the size of a masonry brick each. Did I recycle all those old car batteries? what was I thinking. Oh yeah, I was thinking too much detritus. it happens.

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