Alternative Nozzle Fan Duct for Prusa MK3 R3 (better cooling)

thingiverse

This design utilizes two concentrated air currents that intersect directly behind the nozzle. It functions remarkably well. (refer to the accompanying image for visual representation before and after modification; I've utilized https://www.thingiverse.com/thing:3302357 for testing purposes). To my own astonishment, this design doesn't compromise cooling in front of the nozzle. Possibly strong turbulent flows or this could be an outcome of the venturi effect (https://en.wikipedia.org/wiki/Venturi_effect) are at play. Unfortunately, Prusa has released a new version (R4) of the extruder, rendering this creation somewhat obsolete. I will attempt to adapt the concept for R4.