PowerSpec Ultra PWM Fan Switch/Speed Controller

thingiverse

Followed the advice from [this thing](https://www.thingiverse.com/thing:2095862) for a PWM fan speed controller and mount. I purchased a different PWM controller and have a different printer, so I designed this for its power switch and potentiometer. I wired it to the stock blower fan, but you could also add a separate fan if you wanted. It comes with a three-way switch, but I only needed on/off. This fits on the right side of the printer below the SD card/USB port and uses an existing screw to keep it in place. The switch was a tight fit, and I had to use a vise to press fit it. Link to the PWM controller on Aliexpress: https://www.aliexpress.com/item/10V12V24V30V-120W-PWM-500HZ-Adjustable-Volt-DC-Motor-Speed-Controller-CCM2-Overload-short-Circuit-Protection/32795025535.html I mounted the controller board to the bottom alongside the other components with a simple bracket (that also holds an upgraded Trigorilla MOSFET based on [this thing](https://www.thingiverse.com/thing:2219235)).