A YouTuber’s latest 3D printer project includes a real tattoo gun and a large clamp to keep your skin in place.

Don't worry about the test subject's safety, though—there's a handy machine-halting panic lever installed for when they ...

For that, you get the printer device in either red ... actually made you want to get a permanent tattoo. For the first test, I'm picking a premade design on the Prinker app. Once you've made ...