This is the Penduloz, a modern drawing device modeled after the experimental harmonographs from the 1800s. The Penduloz renders hypnotic designs in infinite permutations — all powered by gravity and physics.
The Penduloz harmonograph hasself-aligning gimbals, a specializedpenholder,and a centering clutch that centers effortlessly on the drawing paper. The spring penholder lets you easily change out colors and pens.