* [https://github.com/unhuman-io/obot OBot]
* [https://github.com/atopile/spin-servo-drive SPIN Servo Drive]
=== Commercial Servos ===
* [https://www.myactuator.com/downloads-x-series RMD X Series]
** Based on the MIT Cheetah actuator
** Planetary gears with 1:6 to 1:8 reduction ratios
=== Controllers ===