CR-10 Directed Fan Duct

thingiverse

This is a modified version of the stock fan duct that comes with the Creality CR-10 printer. This incorporates thicker bolt stand offs to eliminate cracking or breaking (a common problem with the thinner stand offs found on the stock fan duct), as well as a directed nozzle to help better cool prints. I've tried several different fan duct designs, and I've found this duct to be far better than most of the "stock-based" fan duct mods.