Get smart curated videos delivered to your inbox.   SUBSCRIBE
The Kid Should See This

A cube and a heart made from paper gears

Watch more with these video collections:

Japanese paper crafter Haruki Nakamura designs mechanical paper karakuri-style animals and other paper automata. In the silent video above, he creates a cube made from 12 interlocking paper gears.

Nakamura has also created a paper gear heart, as seen in the video below.

He sells the 3D printing data for both the cube and the heart. See 3D printed versions of the heart, cube, and a rabbit in action below:

See more of Nakamura’s surprising work on this site, as well as more papercraft videos like easy paper card pop-up tutorials for kids, Engineering the Perfect Pop, and Paper Folding with Matt Shlian and Sesame Street.

Bonus: Three Gears are Possible and Gears of All Shapes.

This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content.

Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.

🌈 Watch these videos next...

The Wintergatan Marble Machine, music made from 2,000 marbles

Rion Nakaya

Gears of all shapes: square, oval, pentagonal, organic & more

Rion Nakaya

Cardboard and paper organ 2.0

Rion Nakaya

Recycle cardboard into anything with 3D printing, an XYZAidan demonstration

Rion Nakaya

Tauba Auerbach’s massive pop-up book paper sculptures

Rion Nakaya

Chris K. Palmer’s Flower Tower origami

Rion Nakaya

Baltic Birch gear and marbles machine

Rion Nakaya

Cycling, a LEGO Technic creation by Yoshihito Isogawa

Rion Nakaya

Making wire gears + the kinetic sculptures of Arthur Ganson

Rion Nakaya