I am automating a table saw and need directional control with potentiometers so i made this to be able to vary direction and speed for each axis
it uses a bearing 20X7 with 8 mm hole and a 8 mm metric bolt.
Inventor project included in zip file
Latest version is stronger.
Fits pot meters "Film Potentiometer RK163 Series"
Film Potentiometer RK163 Series