40mm fan - ultrasonic Sensor mount

I made this model as a test rig for an ultrasonic bed leveling system.
This part is designed to mount an ultrasonic range finder to the fan on a stepstruder/MakerGear MkX direct drive extruder.
This is my first 3D model uploaded to Thingiverse. I may have to redesign it now that I think about it, as there is nowhere for the leads coming off of the pin headers to go.

Update - 9/17/14

My Prusa i3 had trouble printing the fan grill vertically, so I am working on a new design. The new version has an H-rail attached to one side of the fan grill, and the ultrasonic mount has a slot to slide onto the rail. These will be released soon. I decided to take the H-rail route to easily add other extruder mods (print cooling fan mount, extruder LED ring, webcam mount, etc)

Update 2 - 9/17/14

This is my model for the extruder mod rail: http://www.thingiverse.com/thing:466195 . I will convert the ultrasonic module soon.