Meet the DuoGraph: a drawing machine that can produce beautiful patterns with 16 gears. It comes with prime and divisible sets of wooden gears with 19 to 47 teeth. The device is compact and easy to set up. The DuoGraph Drawing Machine can also be disassembled in minutes.
More gadgets like this: here
The kit comes with everything you need to get started. This drawing machine is currently getting funded on Kickstarter.
**Disclaimer: Our posts may feature aff links. As an Amazon Associate, we earn from qualifying purchases. Please read our disclaimer on how we fund this site.