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OT Supercharge a Paper Airplane

Discussion in 'Electronic Design' started by default, Aug 28, 2007.

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  1. default

    default Guest

    Pop Science has an interesting article for building a three
    dimensional paper airplane - 3D: Actually looks a lot like the AT-6
    radial engine aircraft from all aspects.

    Takes Two 9x12-in. sheets smooth Bristol Board (card stock paper)

    Into that they mount a small toy motor fed by a Panasonic 3.3 farad
    capacitor charged to three volts to motorize it.

    http://www.popsci.com/popsci/how20/f8c0dd5fc7c72110vgnvcm1000004eecbccdrcrd.html

    The link may change but searching for "Supercharge a Paper Airplane"
    will usually find it.

    Good science related Sunday afternoon project for a father and son.

    They estimate the cost at $15
     
  2. The most critical component, the electric motor, is listed as "free -
    salvage".
     
  3. default

    default Guest

    Many surplus outlets have them for a dollar or less. If you have to
    pay tax, shipping ,or a minimum purchase, it could get expensive fast.

    Like I said: "they estimate the cost to be $15"

    I don't know any electronics hobbyist or professional that doesn't
    have some junk parts laying around.
     
  4. Robbo

    Robbo Guest


    What are the vibrator motors in mobile / cell phones? Are they a simple
    motor & offset weight configuration?
     
  5. default

    default Guest

    Most are. There's a cell phone using something the size and shape of
    a dime (little thicker) that does the vibrating with no external shaft
    - don't know how common they are, I found it in a cell phone that
    someone dropped in the lake. (tiny cingular brand with camera and
    memory chip flip phone style)

    From the pictures, assuming they are drawn to scale, that motor looks
    about 1/2" in diameter. Cell phone vibrators are down to ~1/4" dia.
    these days - but with rare earth magnets, they may have the torque to
    do the job.
     

  6. All of the ones that I've seen, are.


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  7. PhattyMo

    PhattyMo Guest

    Can those 2.5V rated caps take 3V?
    Hmm..
     
  8. default

    default Guest

    The ones I found were 2.7 volts and probably could use a 3 volt
    source. No switch, so it is probably a matter of connecting it and
    launching it. IR drop with the cap, motor, battery esr and wires is
    probably going to lower the voltage a tad.
     
  9. default

    default Guest

    Some pager/phone vibrator motor info (how to take the weight off
    without destroying the motor)

    http://www.robotroom.com/TinyMotor.html

    * Solarbotics #TPM tiny pager motor. Replaced by TMP2 ($4.95) --
    comes with clean shaft (no weight)
    * Solarbotics #RPM pager motor. Replaced by RMP2 ($3.95) -- comes
    with clean shaft (no weight)

    Electronic Goldmine has a number of pager motors with weights on their
    shafts: G12809 ($0.99), G13566 ($1.29), G15241 ($0.99), G15768
    ($0.99), G15768 ($0.99 for 2), G16153 ($1.00).
    BG Micro has a pager motor with a weight on its shaft: MOT1030
    ($0.99).
    All Electronics has a pager motor with a weight on its shaft: #DCM-204
    ($1.25).
     
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