Many hobbyists and hackerspaces have the $500 Chinese 40W lasercutters which most of us know are about as successful at etching metals ... without the mixture. Stainless steel is an alloy of ...

[Brain] wanted to mark some scissors with his Ortur laser engraver ... You can buy a commercial marking solution called CerMark Black, but you probably already have mustard.

However, one of the persistent challenges in laser powder-bed fusion (LPBF ... which is around the range for high density ...