Next we create the copper coil that in conjunction with the magnet will move the speaker. With the battery still in the paper cylinder, leave a 12 inch length of AWG 32 copper wire and then wrap the wire around the paper cylinder once about ¼’ from one end of the cylinder (picture 1). Now create a second wire wrap directly next to the first wrap, working toward the longer side of the cylinder, taking caution not to overlap the wires (picture 2). Continue this technique of wrapping until 50-60 wraps have been completed. Use the hot glue gun to and place a strip of glue over the wire, as shown in picture 3 to keep the wire coil from unwrapping. The finished coil is shown in picture 4.