Step 4Putting Everything Together
some wood screws and go right through the plastic to the 2"x4". Make sure it's firmly attached and you still have access to the batteries and on/off switch. Next mount the 2"x4" to the plywood base with "L" brackets. Now we can attach the first wooden disk to the tire of Car A. You already know where the center is so just use some bolts, nuts and faucet washers to mount one of the disks to one of the cars rims.
Next mount the wheel and motor assembly of Car B to one end of the 1"x3". Then mount the other end of the 1"x3" to the wooden disk that is mounted to Car A. Take care to try and balance this.
Now you can mount the second wooden disk to Car B's wheels and motor. Use the extra length of wire and attach the circuitry and battery pack of Car B to the base. We used Velcro. Finish up with the paint job of your choice.
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