Help with Laser Engraving Tumblers? - Community Laser Talk

I know most people laser engrave tumblers with CO2 lasers and I may eventually make the jump to one of those to save time on engravings, but for now I have a low power (4.2W JTech) diode laser. I have engraved some tumblers with it that turned out pretty good after cleaning them a good bit, but sometimes I get leftover lines where I am guessing the powder coating didn’t get removed all the way. I was wondering if anyone knows how I can help reduce this in the future whether it is by reducing spe

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Help with Laser Engraving Tumblers? - Community Laser Talk - LightBurn Software Forum