Smooth Gearing

This CAD model was designed by Oskar van Deventer, copyright (c), 20 January 2026

Smooth Gearing is a gearing puzzle. The object is to place the gears such that the gearing is smooth. This is challenging, as the teeth of the gears have different sizes. So the gearing is sometimes smooth, and sometimes not. Only when the dot is with the correct number, the gearing is smooth all the way around. Any nerd will guess that number correctly instantly.

Here are some links about this design.
https://www.youtube.com/watch?v=QxSHC9gclsw

Feel free to 3D-print an extra sample to give to a friend, as long as you mention the designer and don't charge money.

If you are planning to sell some samples, then please contact me for a license agreement. The royalty fee is 10% of your selling price.

Please do not upload the design to a commercial service, or redistribute the design in any way other than linking to the YouTube video: https://www.youtube.com/watch?v=QxSHC9gclsw

Enjoy!

Oskar
18 April 2026

Contact: 
https://oskarvandeventer.nl/index_contact.php?subject=Print%20It%20Yourself


