Really simple 20x20mm extruder fan mount and nozzle thingy for a Prusa i3

I didn't like the big fan mounts and nozzles around, so I knocked up this one to fit a tiny 20x20mm fan that I could just glue on to the extruder carriage. I print in ABS and I want the fan just for bridging and very small layers. This fan doesn't push much air, but does help avoid melt downs with small things like the hand supports and antennae on the Ultimaker robot.

The mount was glued with Shoe Goo (AKA Goop) to the bottom of the X axis carriage on my Prusa i3. Adjusted with a cardboard