1. Our robot has three engines: two of them are used to help the wheels and the other one for the arms. Since we only have one engine for the arms, we have had to design a gear system to change direction throughout the robot.
2. We have created three boxes and every box contains diferent arms. This boxes are programmed to slip on and off quikly and all agree on the engine, that moves all arms.
3. The gadget that we have more advanced is a crank rod and is used to catch and drop pieces in pairs.
And that's the link of the video when you can see how's the robot working:
