Homemade ESC fan

[ibanez830]

I got the idea from some website, so I decided to try it. Although the idea is quite common and straight forward, I'll post anyways and include some pictures.

All you need is a small fan. I used one from an old computer.
You'll also need an on/off switch, but not necessary.
And then a 9V battery and a zip tie or two.

So heres what I did:

I connected an on/off switch to the fan and then zip-tied the fan on top of the ESC. Then I attached the two wires to the 9v battery and hot glued them in place. After that I hot glued the 9v battery and switch onto the chassis. I personally hot glued the crap out of it so it would be more secure and stronger.





Looks real ugly but it works really well, and its pretty much free.

 

[hamz9561]

You can also connect a fan to the 3rd channel on a typical RC. If you use a connector from a burned out servo and just use the positive and negative out of the receiver. This should give you about 6v DC. As long as it is a small fan there should not be any issues on current draw.

 

[ibanez830]

Never thought of that. Gonna go and try it tomorrow
Thanks for the tip

 

[hotrodhall]

Would the fan work cooling a nitro engine?

 

[beason]

the esc on my e savage had a fan plug on it already. i added one off a novak esc i had laying around and it plugged right in. really helps the esc!!

nitro engine, i dont think it would be worth it.

 

[Metalhead Matt]

If a nitro engine is getting hot, it's tuned wrong and/or has an air leak. Or you need some vent holes in the body.

 

[Rolex]

Running temp is part of a nitro's proper tune. Electrics NEED to stay cool.
Some units come with the cooling setup in the package, such as this Novak.

 

[ibanez830]

Yeah, a lot of esc's come with auxiliary ports for fans or other things.
As stated above your engine shouldn't be hitting dangerous temps unless you have a tuning issue. You can also cut a hole in the body to let air through.