book collections email follower instructable user

Step 6: Attach the Rubber Band

Picture of Attach the Rubber Band

Tie a rubber band around the frame using a hitch knot near the idle wheels (picture 1). Make sure to avoid tying it around the straw or else it will pinch the idle wheel dowel and prevent the wheels from turning.

Tie a cable tie to the drive wheel dowel. Pull it as tight as possible, then cut off the excess (picture 2). This is where the rubber band will be attached to the drive wheels. If the cable tie slips in the next step, then apply a small amount of hot glue to it.