Airbrush spray booth adapter for 120x25 fan

thingiverse

This is a two piece adapter to use a standard 120x120x25 fan in the common ebay/Amazon airbrush spray booth. The noise of the original fan annoyed me, so I wanted to try something different.I designed it as a two-piece so the original screws would still work. I use the 9mm in the front and the 4mm in the back, so that it will also fit with my drain hose adapter.I'm using a Noctua NF-F12 iPPC-3000 PWM controlled by I cheap PWM controller like this one. Works great, you just have to wire it correctly. The fan needs PWR, GND and PWM. The "Motor +" pin of the controller is the PWM signal, so you'll also have to connect PWR to 12V.The performance is comparable to the original fan, maybe a little weaker, but way quieter.