Trackballs That Can Spin
trackball designs that allow the ball to spin.
Spin 10 Seconds, Trackballs with Ball Transfer Unit
BTU stands for Ball Transfer Unit. It's a large ball sitting on lots smaller balls, for most smooth rolling mechanism.
![BTU Ball Transfer Unit ms4f](i3/BTU_Ball_Transfer_Unit_ms4f.png)
Jan 18, 2022
leftharted1
Right: default ruby bearing. [source reddit, by boomskats]
Oct 22, 2021
theobstacle
Here's idea using air bearings:
Dec 22, 2019
Applied Science
Spin 4 Seconds
Feb 9, 2016
Paradox
CH Products DT225 USB trackball โขJul 18, 2014
David Kolib
Spin 2 Seconds
Aug 1, 2016
Omr