Need help with making a brushless fan into a camping fan.
 

Been doing some internet searching and I can't find a way to manually control the speed with a brushless radiator fan 3 or 4 wire. I think they have a built in esc. The BMW brushless fans have 2 big wires and 1 little wire going to the fan. Mercedes and others have 2 big wires and 2 little wires. My plan is to make a frame to hold the fan (kind of like a box fan) and have the fully adjustable speed control on top. But I don't know what all I need to control the speed. I have a 12v lithium battery to power it. Any suggestions? I want to do this for the efficiency of the brushless fan and it would push more air too. From what I gathered I think all I need is a low input signal pwm but not sure. And also I wouldn't know how to wire. Any good input would be highly appreciated.
Thanks!!

Nobody?

They make DC controllers for brushless fans with multiple amp and watt outputs. Not sure what your budget is

https://www.anaheimautomation.com/ma...waAk0kEALw_wcB

https://www.groschopp.com/control/brushless/

I have this fan for camping if that has decent flow and saves you the time building your own:

https://smile.amazon.com/Quick-Produ...s%2C149&sr=8-5

Thank you! I'll call those places today. And thank you for sending me a link to that fan.

This should do the trick:

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

It doesn't go below 1000Hz but when I did some testing with the Volt fans, it seemed to work just fine:



Andrew

That's exactly what I was looking for! Thank you!! I think that controller will be just fine for what I'm doing. I'll get it ordered.