Starting a new topic for these after mining a few other threads for hints which did help, but were buried.
My wife was asking about plastic magnetic name tags, and I needed a new project so I found these "ExcelMark Blank Name Tags" and thought I would give them a try. Note than they are two layers of plastic and you can find a variety of top and bottom colors. And if you can’t find enough on Amazon… Johnson plastics has so many more color combos (in name tag or raw sheets). The magnets on these hold quite well.
The tags laser nicely, though I did not expect the “stippling” texture in the removed areas. If you look very closely at the image, you can see a pattern in the black - like little laser craters - but those have the added benefit of catching the light and sparkling a bit.
Here are the results:
Settings used - Engrave only 1000/35 340dpi material depth 0.14"
I played with the settings for a bit to see about reducing the stippling - but at $1 per blank, I would take a hint or two before going beyond just tweaking the speed/power as I did.
Unlike some burns - I really don’t see any soot residue on my tags, (but did see some on my jig). It was mentioned in one of the threads below that any soot could be cleaned off with alcohol. I do wonder if I was doing this on a large piece if there would be re-deposition on the part of the engrave that was already done.
I did use some scrap wood to create a jig to avoid registration issues. Cut the 1x3" outline (with an additional half circle on one side to allow my finger in for extraction).