Just a note. I've played with this arm problem as well. I rigged a similar figure with the elbow controlling the sholder, wrist controlling the elbow and lower arm. That is as far as I went. It leaves the hand to fend for itself. The arm will move, but the hand will point forward, until I rotate the wrist... The fingers I rigged in just a hand model and found it worked okay, except often the rig would change in constraints and I'd have to go back and re-do it over again. Thanks for sharing your ideas and model with the group. R.

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