CR-10 E3D Modified Fan Mount.

thingiverse

I tweaked the airflow modification for speedier air circulation than standard, and it appears my modifications also steer the airflow directly toward the printhead nozzle. While not flawless internally, this mod still yields respectable prints. I've been testing with a single perimeter wall and solid infill at 100%. The results look good so far, but I'm adding ten bottom and top layers to further improve the print quality.