J-head cooling shield for 30mm fan

To be used with Thinkyheads' Prusa i3 Wades Adapter:
http://www.thingiverse.com/thing:58451

I have designed this fan-shield specifically for use with the J-head and a 30mm fan.

Currently I am still improving small parts of the object so stay tuned!
In the end, this cooling shield should also be compatable with other extruder adapters that use a J-head, because the spacing of the mounting-holes is universal.

Printed it myself and for me it worked flawlessly after the first try!
BUT