Designer Builds a Giant Wooden Spirograph that Creates Intricate Patterns with Chalk

Inspired by a tiny laser-cut Spirograph he spotted at a craft show, Nathan of the craft website HaHa Bird, decided to build a giant eight-foot wide version of the classic drawing toy that uses chalk to create intricate geometric patterns on streets and sidewalks. The Spirograph, which is made of segments that fit together like puzzle pieces is entirely human-powered, kids and grown-ups can push the gears around the outer circle and watch the chalk draw interesting loops and swirls.

 Find out more about the project here.

via [Visual News]