Fan duct for Creality Ender 3.
Currently being tested on cr-10 and cr-10 mini
The air is conveyed on the tip of the nozzle, not on the nozzle or on the block which makes the airflow useless because it would not cool anything
Share your prints so you can create derivates
13/07/2018 - add thing "rev3" , 3 internal wings have been added for those who have problems printing the bridge
print without supports !
the thing requires bridges of about 2cm .. if you have problems with brides not printed yet, I'm creating a model with internal supports and a guide for 3d simplify to help you with the bridge creation.