[Brain] wanted to mark some scissors with his Ortur laser engraver. The problem? The laser won’t cut into the hard metal of the scissors. His solution? Smear the scissors with mustard.
[Frankie] and [Bryan] have figured out a way to use the laser to chemically activate an etching process ... effect at all without the mixture. Stainless steel is an alloy of iron and some chromium ...
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