Aquarium airpump  is great for cooling.

Aquarium airpump is great for cooling. I think Schorsch printer uses it too

That’s a nice idea, Is it not a little noisy?

No, my e3d fan is louder. It is loud if only without tubing

thought about the same idea :slight_smile:

Just do it! About 5 russian forum members did it for themselves in last 2 weeks. All are happy. One connected via relay to fan output. One via DIY PID regulator