Make a Simple Electric Generator

How to Make a Simple Electric Generator(3)

Steps

7.Cut a 4 inch section of the paper or cardboard tube. If you don't have a piece of tubing available, you can make one by rolling a sheet of construction paper into a cylinder and gluing or taping it to secure it in this shape. The ideal diameter of the tube will be just large enough to allow the bar magnet to spin freely inside the tube, keeping the magnetic field as near the copper windings as possible.

8.Wind the copper wire around the cardboard or paper tube, leaving about 16 to 18 inches of wire loose on each end to connect to you power test device, an electric light bulb, or other device you will supply power to. The more "turns" or winds around the tube you make, the more power your generator should produce.

9.Slide the tube over the shaft and magnet, then slide the shaft on through the other support frame. You will want several inches of the shaft sticking through each end of the frame.

10.Glue the magnet to the shaft at the center of the two supports, using a high strength hotmelt glue or epoxy. You may choose to drill and tap threads into the magnet for a "set screw" if you have the tools to do so, but the idea is for the magnet to be stationary in relation to the shaft.

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