[ insert picture here ] 
This Lego claw mechanism is a theoretical gantry mount designed to grab objects at a distance via a single powered motor. The mechanism is built entirely out of Lego's found in a very unused box in my house. The claw comprises of a driving crank-slider mechanism and a driven system of parallel linkages that end with a gripper. In total, this mechanism is built with 8 linkages.
...
In the end, I would like to understand the mechanical advantage of the system to see how much gripping force the claw can generate given an input torque.