Flexion compressed air cooler

I was interested if it would be possible and useful to do the cooling tasks on a 3D printer extruder with compressed air instead of fans - and I must say: yes - it definitely works very well, way better than expected. I'm currently printing/cooling with 0.2 to 1.0 bar pressure.

The print results are very nice and it's less noisy as 2 to 4 40mm fans (if your compressor is far away or soundproofed of course).

The idea was born as I upgraded my CTC with two Flexion extruders and my old coolin