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Car antenna for automatic door opener

Discussion in 'Coop & Run - Design, Construction, & Maintenance' started by twoquinns, Nov 30, 2014.

  1. twoquinns

    twoquinns Chillin' With My Peeps

    Dec 30, 2012
    We're working on plans for an automatic door opener for our coop and have a question for those of you who have used car antennas. We're wondering if the motors for these antennas hold up over time or if people have trouble with them burning out. It seems like opening a door is a much bigger load on the motor than just raising and lowering the antenna alone.
  2. yellowchicks

    yellowchicks Chillin' With My Peeps

    Jun 27, 2014
    My Coop
    Try the automatic car window motor.
  3. Wxguru

    Wxguru Chillin' With My Peeps

    Sep 2, 2014
    Or do the water pump (pond pump) and bucket trick with a couple of pulleys. I have the parts except for the pump...I still need to grab one
  4. Indoroowet

    Indoroowet Out Of The Brooder

    Oct 9, 2014
    Nothern Utah
    All depends on what kind of door you are trying to open or close.
    Really, is there a need to have a door as heavy as you see in bank vaults ???

    With that out of the way, an automatic car antenna has a very long stroke.
    Use that long stroke to your advantage.
    Make a flip-up door, just big enough to get one chicken in and out at a time.
    Then add an extension on the bottom of the door to increase the *length* of that door.
    Attach the end of the antenna to that extension and you will find that the antenna will open the door very easy.

    Principle sketch here:
    Last edited: Dec 1, 2014
  5. Davidhalpern2

    Davidhalpern2 Chillin' With My Peeps

    Jan 29, 2014
    3 yrs with absolutely no problems!

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