Rounded 40mm Fan Mount for NEMA 17

I needed a 40mm fan mount that I could mount onto my MakerGear Prusa Mendel motors without deconstructing the printer. I couldn't find one online that fit all of my needs.

I started with the basic concept from this fan mount for the x-axis carriage:

http://www.thingiverse.com/thing:13343

which was based on this one:

http://www.thingiverse.com/thing:10032



By flipping the orientation of the mounts, they can be used on differently mounted motors.

Here's a Youtube video of the