Evolve GT Motor Fan

This Model doesn't replace the Professional Cooling-Finns machined out of Aluminium. However I think it does generate a lot of airflow which only can help. It sure does look kinda cool. 

If your tolerances are a little tight you might want to ride your board for a while till it's warm so ist easier to putt the Fans on. 

I printed mine with normal PLA 0.25mm layer hight and 4 Wall-lines and they worked fine. 

PLA works but might not be the best Option because of thermal Resistance, might want to Print with PETG, ABS ore ASA.