The robotic arm itself is a 6 Degrees of Freedom (6DOF) model, which means it can move in six different ways: up and down, left and right, forward and backward, and it can also rotate around three ...

You could sit around learning about motors and control theory, or you could build a robot arm and play with it. If the latter sounds like your bag of hammers, you might like Pedro 2.0.

The 1-DOF robot was fixed to the F/T sensor and pulled the 2-DOF robot at a constant speed. Credit: IEEE Transactions on Neural Systems and Rehabilitation Engineering (2025).