I have thought about making a Grip Machine before, but never did. I could make that work with an Olympic Bar on Pins in a Power Rack, and use my hand bar, from my Hand and Thigh apparatus, with a loading pin. I like it.
@ZFJango Woukd you add that on a day you use Grippers? Maybe I could use it to finish thumb intensive exercises like Pinching and Cine Pinch, to work the fingers.