40 mm fan mount for Printrbot Simple V2

This is a printable version of the nozzle fan mount supplied with the Printrbot Simple V2.
The mounting holes are sized for a regular 40 mm fan, not the fan supplied with the Printrbot kit.
Derived from original Simple source:
http://printrbot.com/2013/08/01/printrbot-simple-files-are-available-non-commercial/