We think this is an intriguing take on half-tone art. It’s a CNC machine that uses an Arduino and two stepper motors to draw on a paper-covered drum. But you’re not just going to set it and forget it.

If Obi-Wan Kenobi was a cylinder head designer, he'd have a Haas five-axis CNC machine in his basement. Although his Jedi starfighter clearly makes use of a propulsion system much more advanced than a ...