Here is a form for requesting new materials. They already stock copper so asking for copper in thicknesses we can spot weld (~0.1mm) seems like the most likely for success.
Do the community a favor and go to that link and request 0.1mm thick copper!
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Done. I also requested 0.2mm nickel. This is a good idea.
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Spread the word to anywhere else that would be interested!
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Done.
Requested 0.1, 0.15, 0.2, 0.25, 0.3, 0.35mm copper, and Nickel plated copper too.
Nelvick @DIY500AMP.COM has a laser cutter, you can send your files to him as well.
Support the little guy.
Ships from Florida.
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My work has a beefy laser. I will see if the dude that runs it can cut copper or not. Not the same as an available online source but worth knowing for the future.
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Love this idea, I’ll see about requesting copper in a few different thicknesses, probably .1, .2, and .3
Same goes for nickel, ever since round 1 of US tariffs started I haven’t been able to find any reliable aliexpress suppliers like before 
He says not without some modifications to the co2 one 
I’ve tried nickel with a 50w co2 one and no chance. Even with multiple passes and very slow feeds it didn’t manage to cut it. I think the main problem is the wavelength, you’d need a fiber laser to cut metals.
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I have a 50W fiber laser and some 0.1 copper. Just need to find the time to do it all
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Yeah, same as others. Tried cutting 0.2 nickel on a 65w co2 laser and no dice. Best I got was a faintly etched line on top after multiple passes.
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