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Slowing down a computer fan for miniature terrain Answered

Hey all,
Kind of new to doing these things but i have a question. I want to slow down a 80mm fan so it spins really slowly. I will use this for a display board for wargaming miniatures (warhammer 40k). My question is i know how to connect a 9v battery to the fan and get it to run with a switch but how would i go about having it go really slow. If i put a resister in will that work and if so which one to use

thanks

Steve

Tags:fanslow

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Computothought

5 years ago

Get a low ohm put and adjust it to the speed you prefer.

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Josehf Murchison

5 years ago

what is the impedance of the motor.
R=V/I

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fwonkas

5 years ago

You might try using a potentiometer instead of a resistor. That way you can adjust its speed as needed.

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fwonkasthe real axl rose

Reply 5 years ago

I'd probably try using a 10K linear potentiometer. Just use it like a resistor — use the middle leg and one of the outside legs. There are some that work on breadboards, like this: http://www.adafruit.com/products/562

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fwonkasfwonkas

Reply 5 years ago

Oh, and I think you'd connect the middle leg to the other outside, unused leg as well.