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Scratch Build – In Progress LED on power switch for homemade laptop cooler

Discussion in 'Project Logs' started by Hambone0326, 8 Feb 2009.

  1. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    Alright, ive made a homemade laptop cooler, and everythime I want to use it, i have to plug and unplug it, i have harvested a power button off an old desktop i had. Also i took an LED too. I was wanting to know how to splice the LED to glow when the fan on the cooler is on. :confused:
     
    Last edited: 8 Feb 2009
  2. legoman666

    legoman666 Beat to fit, paint to match.

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    Probably the wrong forum ;)
     
  3. lost_modder

    lost_modder New Member

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    you will need a resistor in the positive wire to the led. then splice the + & - from the led to the + & - of the fan. if your fan is running off 12v, use a 420 ohm resistor or if your fan is with 5v then use a 70 ohm one.

    this would have been better placed in the modding section, but since it's here please show pics of it being built!
     
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  4. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    well, its not really much just a card borad and duct tape model :hehe: i hopt to get some plastc sheets and make a permeanet one in the next week or so. Ill post pictures anyways.
     
  5. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    i cant find a 420ohm resistor at radio shock, but i found a 470, would that work?
     
  6. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    Heres the pictures! :D


    This is a front view. The blocks in the upper corner allow my laptop to sit at an angle to increase air circulation.

    [​IMG]


    Heres a side view the small black square in the box corner is a double rocker switch. Im also showing the 12v DC power pack.

    [​IMG]

    Heres the inside, not much, just abunch of taped down crap. :hehe:


    [​IMG]

    A kinda sideview of the inside. Those big wads of crap on the sides and the top is what supports the box.

    [​IMG]

    Its not much, but it gets the job done. :D
     
  7. lost_modder

    lost_modder New Member

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    duct tape prototype action! i would say to get your led connected, and then transfer everything to wood. hardboard would be good for the top and bottom pieces. the "shower board" variety would give you a glossy white finish.
     
  8. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    I got 4 LEDs and found out that they each run on 3v, so when i wired them all together in the circut, I didnt need any resistors, because that adds up to 12v! :D
     
  9. Top Nurse

    Top Nurse Member

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    Very good job! To many people get too wound up in making it ultra neat (like me :lol:). Very functional and I love Duct tape. :thumb:
     
  10. NZ_mod_man

    NZ_mod_man New Member

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    It certainly has character, and if it works well, why not.:)
     
  11. Cheapskate

    Cheapskate Insane? or just stupid?

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    You better not let the Boston bomb squad see that!
     
  12. AFX

    AFX "Bling" Silver Mountain 2

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    Ghetto awesome! I love it!
     
  13. alpaca

    alpaca llama eats dremel

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    you still need a resistor, even if it is only 1 Ohm or so, because leds do only drop voltage, but have no real resistance. if you put only leds, there is a risk of the current becoming quite big and burning those precious leds.
     
  14. barry99705

    barry99705 sudo rm -Rf /

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    I heard on the radio a cop called in a suspected bomb. Turned out to be the innards to a toilet. He really needs to turn in his man card.
     
  15. Krikkit

    Krikkit All glory to the hypnotoad! Super Moderator

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    That's awesome work. Nice job. :D

    What kind of temp decreases did you see?
     
  16. Shazbom

    Shazbom New Member

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    Nice idea... good job.
     
  17. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    LOL thats wat my co-worker said!!:hehe:
     
  18. Hambone0326

    Hambone0326 Do you really need that finger!?!?

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    :D heres a sketchup of wat i want to build soon



    [​IMG]



    im not very good at sketch up lol :waah:
     

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