Subscribe
  1. Jedi-Bob's Avatar
    Member Since
    Mar 2002
    Posts
    1,570
    Aug 29, 2004, 12:36 PM - Wiring a fan (or other electronic) #1

    I am trying to wire a 12V fan in my helmet and am concerned because the 9V is getting really warm and I am afraid of it blowing in my helmet. (I HAVE had a 9V pop on me!)

    How should it be wired?
  2. krillindb's Avatar
    Member Since
    Jun 2003
    Posts
    473
    Aug 29, 2004, 3:56 PM - Re: Wiring a fan (or other electronic) #2

    In my helmet I have 2 small fans wired to a 9v. The 9v stays cool as can be. Maybe you could try adding another fan?
  3. Jedi-Bob's Avatar
    Member Since
    Mar 2002
    Posts
    1,570
    Aug 29, 2004, 5:57 PM - Re: Wiring a fan (or other electronic) #3

    The battery is what is getting hot. Not in the helmet. I was thinking that even in the "off" position, current is stiull running through and causing the battery to heat up.
  4. cal196's Avatar
    Member Since
    Aug 2004
    Posts
    2,617
    Aug 29, 2004, 8:08 PM - Re: Wiring a fan (or other electronic) #4

    He said the battery stayed cool, if you hook up another fan to it the battery wont pull so many ohms. One 9volt battery in a 12 volt fan is making it overheat, just get another fan.
  5. Jedi-Bob's Avatar
    Member Since
    Mar 2002
    Posts
    1,570
    Aug 29, 2004, 8:10 PM - Re: Wiring a fan (or other electronic) #5

    I got it. I was just trying to use this fan cause I got it for free.
    I have spent so much $$$ on this outfit that I am trying to save anywhere I can.

    Thanks
  6. cal196's Avatar
    Member Since
    Aug 2004
    Posts
    2,617
    Aug 29, 2004, 8:47 PM - Re: Wiring a fan (or other electronic) #6

    hehe I think a couple more bucks is worth not getting battery acid all over your face.
  7. Jedi-Bob's Avatar
    Member Since
    Mar 2002
    Posts
    1,570
    Aug 29, 2004, 8:50 PM - Re: Wiring a fan (or other electronic) #7

    I would think so.

    As I mentioned earlier, I had a 9V pop once.
    Would it being too weak cause that to happen?

    maybe I'll just sweat it out.
  8. soilman's Avatar
    Member Since
    Dec 2003
    Posts
    446
    Aug 29, 2004, 9:13 PM - Re: Wiring a fan (or other electronic) #8


    cal196 wrote:

    hehe I think a couple more bucks is worth not getting battery acid all over your face.
    Thats how Boba's Voice changed from the clone AOTC to the way it sounds in the Empire strikes Back. LOL haha!
  9. FettTheHunter's Avatar
    Member Since
    Jul 2004
    Posts
    405
    Sep 6, 2004, 1:54 PM - Re: Wiring a fan (or other electronic) #9

    You guys have fans in your helmets !!!... does it really get that hot after a while

  10. BigaboyFett's Avatar
    Member Since
    Aug 2004
    Posts
    633
    Sep 7, 2004, 3:25 PM - Re: Wiring a fan (or other electronic) #10

    We are are required to wear our helmets at all times. I use a nitrogen-mesh cooling matrix that is integrated to my climate control body mesh for use in adverse weather/temperature situations. My asbestos lining causes my suit to be quite warm, especially when I am using my flamethrower. And I am prone to being warm due to my weight problem.


    FettTheHunter wrote:

    You guys have fans in your helmets !!!... does it really get that hot after a while

  11. FettTheHunter's Avatar
    Member Since
    Jul 2004
    Posts
    405
    Sep 7, 2004, 7:36 PM - Re: Wiring a fan (or other electronic) #11

    Darn...and I've only got a adapted Grey Boiler suit and a non working flame thrower

    I shall have to look into installing a fan when I get my Don post then



  12. Member Since
    Apr 2002
    Posts
    215
    Sep 15, 2004, 9:40 PM - Re: Wiring a fan (or other electronic) #12


    Jedi-Bob wrote:

    The battery is what is getting hot. Not in the helmet. I was thinking that even in the "off" position, current is stiull running through and causing the battery to heat up.
    If what you're saying is true, that the batery is getting hot in the "OFF" position, then the problem is that you wired the switch incorreectly (and believe me, this is a common mistake among those who are wiring in fans).

    Check to see how you wired it. You only want the switch in series with ONE of the power wires. If both your positive and negative wires go through your switch, then the problem is that you are shorting the battery when you turn the fan OFF.

    If this sounds like what's happening and you need more clarification, let me know.


    ATM
    ShackMan
    wild_wire@yahoo.com
  13. F16WarBird's Avatar
    Member Since
    Sep 2004
    Posts
    112
    Sep 18, 2004, 11:01 AM - Re: Wiring a fan (or other electronic) #13

    Here's one way you could do it


    This configuration places the fans in parallel with an LED to lower the voltage. I used this in my TIE bucket and it worked great.



  14. Member Since
    Apr 2002
    Posts
    215
    Sep 23, 2004, 11:56 PM - Re: Wiring a fan (or other electronic) #14

    That set-up may work great for a while, but will GREATLY reduce the lifespan of the LEDs. There needs to be a current limiting resistor in series with the LED to keep it from burning itself up.

    Out of curiosity though, what's the rating (forward voltage) of the LED? I know a 12V fan will run at 9V and slightly under, but am curious what kind of voltage they're seeing due to the LED.

    Thanks,


    ATM
    ShackMan

Similar Threads

  1. Electronic help
    By Chucko in forum The Sarlacc Pit
    Replies: 4
    Last Post: Jun 3, 2010, 11:33 PM
  2. help for electronic wiring.
    By mandalor no1 in forum The Sarlacc Pit
    Replies: 2
    Last Post: Dec 15, 2009, 5:21 PM
  3. Electronic Help
    By psydaz in forum Boba Fett Costume
    Replies: 1
    Last Post: Oct 27, 2008, 7:26 AM
  4. Wiring ?
    By Sir BobaFett in forum Prop Building Workshop
    Replies: 3
    Last Post: Jul 30, 2005, 12:21 AM
  5. Wiring ?
    By FettTheHunter in forum Prop Building Workshop
    Replies: 25
    Last Post: Apr 17, 2005, 10:10 PM