Baccus61 has documented some of his cool DIY Laser Etching Projects. He makes etching an image on a round bottle simple!

After the jump are a few of my favorite videos he has created.

"My new rotary attachment is finally ready after a couple of weeks in the making (I didn’t spend too much time building it though) It’s a Vexta 5 phase stepper motor coupled to a 50:1 harmonic gear drive or wave drive as they are sometimes called. I will be mounting a woodwork scroll chuck onto it later on and glue some rubber to the jaws to stop breaking glass things and to add a bit of grip. I also need to add some rollers underneath the back end to support heavy things like full wine bottles etc. I took me a bit of working out how to fit the 5 phase drive to the 2-4 phase setup I have to run the table but in the end all I had to do was to use a 4 pin plug and isolate the power and step and direction wires to fit the 4 pin plug. I saved a copy of the setup for the rotary drive in a new save file for Linkmotion and all I have to do is connect the plug for the attachment then load the proper table file into Linkmotion. It takes about 2 minutes from start to finish to swap the setup over."