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

The build began by plotting a circle with a pen onto a piece of paper. This evolved into printing a tool holder for a tattoo machine graciously provided by an amateur tattoo artist. Tests with ...

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