Over Instructables, a guy shows how he used a laser etching mechine to tattoo himself. Such a crazy idea! Well, some people use laser to remove tattoo, while others use laser to tattoo…
He describes:
The sound by itself (meaning no body parts in the cutter), is probably the easiest thing to deal with. It is just the normal whine of gears, belts and cooling fans. When that sound is mixed in with the sensation of burning flesh, it turns the laser cutter from a simple machine shop tool to a futuristic torture device.
The sight is not too bad, just a light tracing its way back and fourth across the body. As long as you don’t think about the fact that the small wisp of smoke trailing the light, is actually vaporized skin, everything will be fine.
The smell is bad. It does not travel far, but when you catch a whiff of the burnt flesh stench, it is quite nauseating. The thought that you have just inhaled some of those vaporized skin flakes, and they have settled on the bottom of your lungs, is the worst.
Some photos:


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I'd be less concerned about
I'd be less concerned about inhaling the vaporized skin flakes than I'd be about the burned flesh on the back of my hand but that's just me. Cancer anyone?