Hello,

I am new to laser etching/engraving. I work at a machine shop that has a 40W laser engraver. I have been trying to get a nice crisp logo (25mm x 2mm) on black anodized 6061 and 7075. I can get a pretty good looking logo, but it appears more blue/grey than white. Other parts that I see the laser etching is really white.

I've been playing with the dpi setting, speed, and the power settings. More power seem to turn the etching brown. Too little power and the logo barely appears. Speed doesn't seem to affect it at all.

Any suggestions?

Thanks,

Chris