The forearm is complete! Mk3 is finished! The wrist features a full 180 degree rotation, and attaches to the hand in my previous log. The hand remains it's own independent unit, with or without the forearm. So the hand may also be used on its own. But the forearm houses an arduino uno board and buck converter, making the arm a completely self contained device. the wrist uses one additional standard sized servo. Completely modular design, the hand can be removed and swapped by removing one m8 bolt.