Been busy printing. I have used copperfill filament (from ColorFabb), so now I have to sand it for the copper to be exposed. I would like to also oxidize it, but I don't think the typical greenish patina growing on copper will suit the model well. Could a specific chemical substance produce a brownish patina on copper?
[#]3DPrinting #nier_automata #chemistry
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Original model on Printables: https://www.printables.com/model/246792-nier-automata-short-stubby-machine-lifeform
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