A Clever 3D Printed ‘Open and Closed’ Sign That Can Be Easily Changed by Turning a Gear

3D Printed Open and Closed Sign

Maker, designer, and engineer Matt Harrison has created a clever 3D printed open and closed sign design that can easily be changed by the turn of a gear.

Inspired by Ikeda Yosuke’s open/close sign design which relies on gravity and relatively frictionless joints, I decided to design one using planetary gears to drive the movement of the letters.

3D Printed Open and Closed Sign
3D Printed Open and Closed Sign
Justin Page
Justin Page

I'm a geeky artist/blogger who loves his life, wife, two identical twin girls, family, friends, and job.