Printrbot Simple 1405 Maker Edition - Extruder Fan Mount

I have noticed on larger prints, even after reducing the current to my extruder, that the extruder drive gear area can start to get warm enough to cause PLA to soften and not drive correctly.
Adding a small fan blowing onto the extruder helps to reduce the temp and keep things printing 100% reliably.
This mount is designed to fit on the two side screws on the Y axis assembly and places the fan just to the right of the bed leveling sensor.