Quote:
Originally Posted by JaneYoung
How did the popsicle sticks and the push pins evolve into this gripper? It is so fun to watch and so fast. Goodness.
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You can use straws and push pins to make pretty effective models of pinned connections for linkages such as this gripper or a jointed arm. At my work, we use them for our "Engineers in Training" workshop's lesson on trusses (where people often accidentally make 4-bar linkages...). I imagine popsicle sticks would work similarly, but are probably a lot stiffer.