Aluminum Casting a Vehicle Gear Using Sand Mold

This man is really amazing. Every time he makes new and complex things I feel amazed. Today he is going to metal cast a vehicle gear which I provided him to check if he can aluminum cast it or not. But he amazed me again when I saw the final aluminum gear cast results. It was really good with all the details. It just needs little machine work and it is ready for use (If aluminum gears can be used). I hope you will enjoy watching his metal casting technique using a sand mold. B