Ball Joint as Gear
This demonstration uses two other parts to drive one part, and these parts are interacting gear-like. This is how we are learning to move our body in Practical Method.
Source: https://practicalmethod.com/?p=76248
Articles
This demonstration uses two other parts to drive one part, and these parts are interacting gear-like. This is how we are learning to move our body in Practical Method.
Source: https://practicalmethod.com/?p=76248