How can you build a windmill with office supplies?

July 27, 2009 by admin · 5 Comments
Filed under: Engineering 
office supplies
Gina S asked:


for a school project i have to build a windmill model with office supplies

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Comments

5 Responses to “How can you build a windmill with office supplies?”
  1. fred k says:
    July 27, 2009 at 11:08 am

    Use an office fan, fit a permanent magnet motor if you want to generate electricity

  2. David F says:
    July 29, 2009 at 5:37 pm

    Paper, wooden coffee stir sticks, glue, and paper clips could go a long way to constructing a replica windmill.

    The question is, does it need to work, or just look pretty?

    If it needs to work, what is the final goal? Windmills are used for pumping water, grinding grain, and generating electricity.

  3. GhostWriter says:
    August 1, 2009 at 1:18 am

    Principal:
    Convert wind energy into mechanical energy, tap the mechanical energy thus produced to generate electricity.

    Supplies:
    - Chart paper for wings
    - Punching machine for holes
    - a spoke and pin to assemble the mechanical unit

    For “how to” watch the video:

    Now You need to convert the mechanical energy to electrical (Optional)

    Either but a dynamo from a market or use an old motor of a small walk man or similar appliance. The smaller the motor, higher the success chances. Also get a small torch bulb to showcase the electricity produced.

    How to:

    - Fix the axis or motor on the spoke of the windmill
    - Take two electrical wires and connect (solder) the one ends to the motor and the other respective ends to the torch bulb.

    When there is wind (which you can produce artificially using a table fan) the windmill with rotate, resulting in the motor to rotate and the reverse current should be sufficient to glow the bulb.

    ATB

  4. Warren W- a Mormon engineer says:
    August 4, 2009 at 8:56 am

    Yea, but you can’t more than 200kW out of it, so it won’t pay off.

  5. Fabian G says:
    August 6, 2009 at 3:21 pm

    Things I’d use: Pencil, Paper A4 (do a square out of it), Thumbtack, scissors… Make this shape from paper and help yourself with scissors (http://bp2.blogger.com/_ZVgPBV6uBnE/RwvNQarM2FI/AAAAAAAAABE/X06fGuGf1no/s1600-h/DSC00063.JPG) attach it on pencil with thumbtack.
    You’ve just made an office windmill.

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