To make this key you will need:
- 1.5 (or just 2) 4' x 8' sheets of cardboard
- Plenty of hot glue and a hot glue gun
- Sharp razor blade with extra blades
- Long rulers/ straight edges
Step 1: Plan and Sketch
After laying out your drawings, it is time to scale them up and onto the cardboard. The easiest way I found is to divide up the cardboard into chunks as shown in the smaller drawings. For example, the key "head" is shown in the drawings as being 32" x 28", so simply draw a rectangle on the cardboard that is the same size. After you have drawn out all of the basic shapes with rectangles, then go back in to put in the details such as rounded corners or the teeth of the key. After your first key is drawn and you feel happy with it, it is time to cut.
Important: When dealing with corrugated cardboard, it is necessary to take note of the direction of the corrugation. In this case, we want the corrugation to run perpendicular to length of the key faces.