Has anyone engraved a metal AR 15 ejector/dust cover? If so, what are the settings?
You cannot engrave metal with a Glowforge. You can however remove the top color from anodized aluminum to leave the undercoat showing or you can use a product like Cermark or LaserBond to leave a marking on metal. I don’t think though that either one of those marking products will make anything that shows on something black.
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Thanks for your response!
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This thread might be useful. (Disclaimer I just skimmed it but it seems on target 
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