Most of the teams came up with similar ideas, but one team went above and beyond the call of duty; they turned a 3D printer into a tattoo machine, capable of inking a real, live human test subject.

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

Open the Youtube video In a world where 3D printers can make everything from prosthetic limbs to pizza, one engineer has ...