Pin Joint for 3D Shapes. Pin Joint for 3D Rigid Bodies. It pins 2 bodies (rigid or static) together. The force with which the pinned objects stay in positional relation to each other. The higher, the stronger. The force with which the pinned objects stay in velocity relation to each other. The higher, the stronger. If above 0, this value is the maximum value for an impulse that this Joint produces. The force with which the pinned objects stay in positional relation to each other. The higher, the stronger. The force with which the pinned objects stay in velocity relation to each other. The higher, the stronger. If above 0, this value is the maximum value for an impulse that this Joint produces.