Passive manipulator ideas

Hello! I’m curious. What do ya’ll think are the pros and cons of a passive manipulator? I think it might be hard to pull out of the stack at the top, but it seems the connections between pin and cup are pretty sturdy. It might be worth saving the extra piston.

My recommendation is that if you have an idea, try and plan it out then build it, manipulators often don’t use much so you can afford to try building and testing it. After you build it, document it in your notebook to satisfy the new testing criteria in the notebook