Here we can see everything put together. Notice that there is a little gap
between the bottom of the fork lift and the touch switches at the bottom.
When the lift bumps into something, it signals the program to activate the
lift. Encountering the white line at the edge of the ring causes the lift
to be lowered. The black pins in the center of the wheels are to keep
another robot from hitting the rubber portion of the wheels and making them
hard to turn.
Bigger...
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