How to Make a Simple Power Generator

How to Make a Simple Power Generator – Building a simple, low-power generator can be a fun science project or just a workshop experiment for someone who wants to be an engineer. The equipment is simple, inexpensive and easy to obtain.

Step

Deciding how big a project you want to build. There are design and engineering considerations that can be used, but to keep things simple, this article will provide instructions for building a simple generator that has a low output.

Obtain the materials you need. The size and specifications can be adjusted to increase your generating capacity, but this is a basic overview of the project.

  • Enameled copper wire 22-28 ga. About 150 meters of wire will produce a moderate voltage. More “coils”, combined with a stronger magnet increases the power output.
    The bar magnet is 7.6 or 10.2 cm long (should fit the length of the cardboard tube below, leaving a bit of clearance).
    An iron or aluminum rod 0.6 cm in diameter and 30.5 cm long.
    Timber measuring 1X4 is 61 cm long.
    1 – large paper or cardboard tube, 10.16 cm in diameter.
    2 – rings measuring 0.6 cm.

Build a “U” sized frame to support your “propeller”, which is a permanent magnetic bar mounted on an iron shaft. by

  • Cut the 1X4 piece of wood into pieces, 2 15.2 cm long, one 30.5 cm long.
    Nail or bolt both 15.2 cm boards to the 30.5 cm boards at right angles to the 30.5 cm boards, which are the basis of the propeller frame.

Drill two .

Drill a 0.6 cm hole through the center of your bar magnet, on the flat, widest part. Taking care to measure the center for both length and width, and drilling perpendicularly so that when the shaft is inserted, the magnet will “fit” into the shaft.

Slide the iron shaft through one side to support the frame, slide the magnet onto the shaft.

Cut a section of paper or cardboard tube with a size of 10.2 cm. If you don’t have a tube, you can make one by rolling a piece of construction paper into a cylinder and taping it down to keep it this shape. The ideal diameter for this tube is at least large enough for the bar magnet to rotate freely in the tube, keeping the magnetic field as close to the copper coils as possible.

Wind copper wire around a cardboard or paper tube, leaving about 40.6 to 45.7 cm of wire on each side, to connect to your test device, an electric light bulb or other device you wish to apply power to. The more “turns” or coils you make around the tube, the more power your generator will produce.

Slide the tube over the shaft and magnet, then slide the shaft through the other supporting frame. You will need a few inches of the shaft to protrude from the frame on each side.

Attaching the magnet to its axis at the center of the two supports, using hot melt glue, which has high strength or epoxy. You may choose to drill into the magnet with a “pack of screws” if you have the equipment to do so, but the real idea is for the magnet to be statically connected to its axis.

Supporting paper cylinder with cable reel in the center of the shaft, with a magnetic rod located in the center of the cable reel. You may simply cut out cardboard legs that can be glued to the cylinders or construct a wire frame from a coat hanger or similar stiff wire to make this.

Rotate the axis with your fingers to see if the magnet tips hit the inside of the tube. The magnet should be able to rotate freely, but as close to the tube as possible. Again, placing the ends of the magnets as close as possible to the coils of copper wire will enhance the “attractive” action of the magnetic field produced by the magnets.

Glued a washer on each end of the axle over the wooden supports.

Attaching the two loose wires at the end of the coil to a flashlight or low-voltage light bulb or connecting them to the needles of a voltmeter or multimeter.

Rotate the shaft as fast as possible. You may want to wind a string around the end of the spindle as you would “spin” a toy, then pull it quickly or twist it with your fingers. You should generate a low voltage, enough to light a 1.5 volt light bulb by manually rotating the axis.

Tips

  • You might want to trim it with a little lever and attach an electric motor to the axle to generate enough RPM to maintain an amperage.

What You Need

  • Electric drill
    Saw
    Insulated or enameled copper wire 22-28 ga. About 7.62 meters of wire will produce a low current of electricity. The more “coils” and larger the wire, when combined with a stronger magnet, increases the power output.
    The bar magnet is 7.6 or 10.2 cm (should fit the length of the cardboard tube below, leaving some clearance).
    An iron or aluminum rod 0.6 cm in diameter and 30.5 cm long.
    Timber measuring 1X4 is 61 cm long.
    A 10.2 cm paper or cardboard tube.
    2 – rings measuring 0.6 cm.

 

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