Servo Potentiometer Control (ServoPot)

thingiverse

I built this as an easy way to adapt models into controllers. While I'd love to be able to put Dynamixel feedback servos in every project, they're just too darned expensive. So, these little guys let you drop in a trimpot anywhere that you'd normally drop in a 9g micro servo. Just print another copy of your model, put these in instead of servos and you have an X-DOF controller that exactly mimics your model. No reverse kinematics or complex math required since the controller has the same physical characteristics as your model. Just record your movements in software and play them back later. The real use case for there was for the Plenza humanoid that I built. It was just a real PITA to try to create scripts to manage the motion using on-screen and traditional joysticks.