E3D V6 Hot End Fan Wiring


When installing the E3D hot end E3D says to connect the cooling fan for the heat break directly to 12 volts so it always runs.
Were is a good place to pick up 12 volts when the printer is powered up?




There is a 12v pin on the ramps/pica you can pick up if you need to, but I have mine hard wired (spliced) before the 12v in of the ramps.


Thanks Squid. I haven’t dug to deeply into it yet. i may go with your approach. I guess the goal is to have the fan running whenever you are preheating, printing and cooling down. Is that your understanding also?



Yeah, I believe that you could control it based on hot end temp, but I prefer to just have it always on…