80mm Fan Air Control
This thing was made with Tinkercad. Edit it online tinkercad.com/things/gnxTLxH6GY8
Part 3 of 3. This kit allows an 80mm muffin fan to sit next to a reprap printer and cool the parts being printed so that a tall skinny feature has a chance to cool and harden before the next layer is printed. Attach it with an o-ring.