As many laserfolk know, anodized aluminum is one of the most unforgiving engrave surfaces you can work with. It shows every sputter, bump, misalignment, and other problem you can find.
So when the team from Trackr dropped by a few days ago and dropped off a half-dozen samples, I decided to try engraving one at “max resolution” - 1.3k lines per inch. (This was also a practical matter as I wanted our logo on my new Trackr). I took this picture with my phone and I’m attaching it full resolution + a crop of the logo. It looks just this smooth in person - there is no visible jaggedness at all. I’ll bring it to Maker Faire (have to remember to reattach it to my keychain!) so if anyone wants to drop by they can see for themselves.
The Trackr itself is 34mm in diameter, if that helps you get a sense of scale. My fingers are enormous.