Institute of ImaginationRobot LabRobot Lab

Step 4 of 6

Thread the crank through the box

Hold the crank inside the box and push one end out through a hole. Gently bend the other wall to push the other end out. Bend one end into a handle, and bend the other flat against the box so the crank stays in. Turn the handle. Does it turn freely?

The open box seen from above, with the paper clip across the middle and the bead on it; each end of the clip comes out through a hole in a long wall; one end is bent flat against the outside of the wall, the other is bent into a handle