Wind turbine. Rotor. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Alternative energy sources
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You will need:
Tools: compass, utility knife, nail, hot glue gun, ruler, pencil.
Materials: white glue, corrugated cardboard, magnets (diameter 1". sparse, grounded, 4), washers (4).
1. Using a compass, draw two circles with a diameter of 12 cm on cardboard or foam board.
2. Use a utility knife to cut out these circles to make discs out of cardboard.
3. Use craft glue to glue the two large disks together. (Tip: If you are using corrugated cardboard, position the grooves on the discs so that they are perpendicular to each other, which will increase the rigidity of the rotor disc).
4. Using a ruler, mark one side of the rotor disk with perpendicular lines. Make sure the two lines are 90 degrees. Use a geometric rectangle or corner of the paper to help you place the second line.
5. Poke a hole through the center of the rotor disc with a nail.
6. Hot glue four bumper washers to the disc, centering them over the lines and placing their edges against the edge of the disc. Tip: Make sure the washers are clean and free of any grease or dirt, otherwise they may not stick to the disc.
7. Carefully separate your magnets by sliding them out of the set one at a time.
8. Carefully place a magnet on each washer with the same facing pole facing up (north or south). On many magnets, the red dot represents the north pole.
9. Tip: If you are not sure about the polarity of the magnets, you can use a magnetic compass to confirm that all magnets are either north or south.
10. Completed rotor.
Author: Dave Mussel
See other articles Section Alternative energy sources.
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