The ballbot is my latest project. The name was first coined by CMU in the early 2000s when they made the first “ballbot.” Till this day, the CMU ballbot remains one of the best, if not the best, ballbot alongside the Rezero (designed by a few undergraduate students at ETH Zürich) and BallIP (Tohoku Gakuin University). The design of my ballbot is much similar to that of the BallIP; however, it is even smaller and will not be using stepper motors, but instead, Maxon motors with encoders, like the Rezero.
The ballbot can balance on a standard 22cm diameter ball.
With access to a laser cutter, I decided to use it.
As can be seen in the image, all the acrylic parts are joined together without screws.