Soldering Fan variable fan speeds
myminifactory
I really liked this design. However I wanted to be abel to control the fan speed and use a standard micro usb charger to power it. I created a little box that I could fit all the electroics in whilst still keeping the design slick. Orgnial fan can be found : https://www.myminifactory.com/object/3d-print-soldering-fan-43660 NOTE: I am a amateur and the circuit diagram provided is what I did rather then a recommended circuit to follow. I don't take any responsibility for any damage or injury caused from the use of the circuit diagram provided.
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