One of the main reasons I ordered a Glowforge all those years ago was to do custom marks on the blades I make.
My Glowforge arrive a few weeks ago. I ordered some thermark tape. Had a heart attack when I saw the price $180AUD a roll. But I used about 60c with on this.
I know there are cheaper ways (dry moly, wet paper towel etc) but after spending many hours making and polishing a knife, there is no room for error at the end.
Here is a practice on an old knife I have had around for years. A quick clean with IPA, stick the tape on, sort of get the blade flat with some magnets, find clip art, upload, etch then clean. About 5 minutes total.
Worth the four year wait. Thanks @dan
The settings I used was Engrave, Speed 318, Full power and only one pass. Will play around a little with them, but it seemed to dig into the metal and be nice and black.