Sorry guys, even though Ive been around them since about 91' , I know little about them. I currently machine (diamond turn) the optics for 1kw co2 industrial cutting lasers, but that's about it. We have an engraving laser, but I don't get to use it often. Years ago I worked for a small shop, the engineer there would design a system and I would machine all the parts and assemble them. We did the production marking laser for Sandvik inserts and some for ford for doing those fancy turn signals in the rear view mirrors, among others. I should have gotten more involved, but didn't really have a choice, It was a job shop with these on the side. My boss was really ahead of the curve, he was the only guy around with a marking laser for along time(early 90s). You know mtn. bikes right, we did all the Cannondale stuff for years, crank arms and such. They would do just as your describing, buy a stripped laser source, then we build whatever else it needed to run. BTW, this shop also produced ALL the Ringle' components from the 90s. The owner got into doing scanned images with the laser, something you would like, made pretty good money. I saw him engrave his house number in a stone, took a while, but in the end, it looked like it was hand carved. Sorry for the novel, brought back some memories.