Assemble your supplies and put the bits together.
Gather up the listed supplies. Attach your power bit to a wire. Your wire should attach to a slide dimmer. The side dimmer should attach to a servo motor. Make sure there is no arm currently attached to the servo and that it is set to "turn" mode.
All of the bits you need
Cut a hole in the box
You will need a hole in the top of the cardboard box for your servo to poke out of and control the arm. We used scissors to cut the hole but other cutting tools will do the job just as well.
Mount the servo motor
Feed your servo motor through the hole in the box. We attached ours to a servo mount to make it easier to tape down. Use scotch tape to attach your servo motor to the top of the box. It is important to do this step before attaching the hub and arm or it will be more difficult to feed the servo through the hole.
Ready and assemble the arm and hub
Tape two mechanical arms together end-to-end. We used duct tape with a 1 inch overlap between the two pieces to ensure stability. Screw the arm onto the servo hub and attach the servo hub onto the servo motor.
Mounted arm and hub
Attach a document
Once you have your arm set up at an angle you are happy with, attach a document to it by using two butterfly clips. Clamp the edge of the document down to the arm using the clips. You are now finished!