Engrave depth gauge

Laser engrave depth gauge!

This is used to determine the depth you get when laser engraving based on Speed and power. This one I don't have any file on except a AI file since this is the only format I can export from my laser software!

1) Diffrent materials
2) engraving text and cuttin out pcs with the same speed and power on all.
3) Engraving the sqr box with different speed and power texted below the box.
4) my machine is a 150 W so the percentage is of 150 W.
5) The box is big enough to measure depth with a caliper.

I save the pcs , I put them in a plastic pocket, in a book cover.
Then I can go back and look at depth and the quality of the cut burn marks and so on.