Magic Cruiser continued

This timing motor will make 4 revolutions per minute (4RPM). This is a good speed for raising and lowering a roof. The motor can operate a cam or a crank. A cam can vary the speed somewhat. A crank  is much simpler. Let's say you want to raise and lower 6mm, make the crank 3mm long.

The roof will be motorized. See how I did this back in high school. HERE !