This is completely impractical BUT has anyone programmed their laser projector to move very slowly in order to engrave an image into something like a black plastic sheet or something else that would absorb the visible light?
I know high power projectors tend to have larger beam specs but they also often have several watts of power so I dont see any reason why it wouldnt work. In theory if you could focus it to a point at some distance you could engrave some decent sized images
The present is an immeasurable moment between the future and the past yet it is the only time in which you will ever live.
I've done it once. I programmed a single point and moved it in a circle over a few seconds. It requires a magnifying glass after the galvos, and the image is limited to an inch or so. (Now that I think about it, it would have been better to place a long FL lens just before the galvos instead.) Anything in the multiwatt range is going to have a poor beam for engraving though, and even the highest power projectors would be on the low end of what engravers can do.
A problem well stated is a problem half solved.