Electric Pencil Sharpener
Sharpen some pencils — and your engineering skills — with a pencil sharpener you build yourself! Construct the core, add the battery, and wire your mechanism up. Then learn about the invention of pencils, the evolution of sharpener design, and hidden engineering features that help your sharpener work smarter!
Why it’s awesome
Build a circuit that turns on with the press of a pencil.
Case and tube are designed to show off the mechanism.
Sketch to invent
Designer’s notebook, pencils, and invention inspirations.
Engineering + design
Creativity + invention
From the desk of the product designer:
Behind the design
“What do innovators, inventors, artists, and engineers have in common? All their ideas start with pencil and paper. With this pencil sharpener and holder combo, you'll always have a pencil handy too for your next great idea.”
- KiwiCo Product Designer
By the numbers
Motor's gear ratio
Trigger switches tested
Exclusive Eureka pencils in this crate