RMAX2/RMAX4 Builds
I built me a set of cooling fans not very expensive to build and welll worth the effort
Used steel frame 1/2” square tubing 3/16” lexan
16” radiator fans 3,000cfm 12v 120w digital potentiometers for adjustable speed PWM frequency=25khz if you build with these u need to use 20khz or higher...