Well, yeah. That sounds like exactly what you do when making a rubber stamp. The letters are high and ramp down (more burned away) as you get farther from the letter.
You just need to put a shape around the text that’s on the same layer. The laser wlil cut away inside that shape but leave the letters intact.
Here I took my text and used “offset” to put a border around it. I deleted the insides of the letters and here’s what it looks like on screen and in preview. Is this what you’re looking for ?
–
