Air Flow Controller

This was made to control the air flow into the 3D Prusa i3 printer head coming from the 40mm fan. Wanted a way to control the temperature better.
Have not actually printed it out yet, that's coming next.

Update: Tried to print it out but did some modifications to both files and it came out successful and actually does its job pretty well!
I have attached the updated files
Works with any 40mm fan and 3m screws.