A brown cylinder opens and closes the jaws, permitting them to grasp and release objects.
Pink slider, violet coulisse and yellow bar create a tangent mechanism.
Blue (or green) slider and two yellow bars create a slider crank mechanism.
STEP files of this video:
http://www.mediafire.com/download/lsj3682alz2odgc/Gripper7STEP.zip
Inventor files:
http://www.mediafire.com/download/71kvwppmy340rog/Gripper7Inv.zip
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