
Robot Magic: Beginner Robotics for the Maker and Magician 71
• Now, thread one of the ink chambers through one of the
straws on your cardboard rectangle and attach another
bottle cap to the other end of the ink chamber, once
again securing the wheel in place with hot glue. Don’t
forget to hold the cap centered until the glue dries. The
more centered each cap is, the better our car will work!
Repeat with the other ink chamber (Figure
9
and
10
).
• Our car is coming together, but we need something to
make it move! Take the barrel from one of your pens and
carefully cut a 2" piece (Figure
11
).
• Attach the mouth of your balloon around one end of ...