Institute of ImaginationRobot LabRobot Lab

Step 3 of 6

Bend the crank

Straighten the paper clip and slide the bead to the middle. Bend the wire up and down either side of the bead to make a square bump, no taller than 1cm, so the bead sits on top. Bend the wire over the edge of your ruler for sharp corners.

A straightened paper clip with a bead in the middle; then the same clip with a square bump bent either side of the bead, so the bead sits on top of the bump