fan mount for greg wade prusa i3

Remixed for the wooden i3 and dual fan support
Credits
http://www.thingiverse.com/thing:184055
http://www.thingiverse.com/thing:190769
http://www.thingiverse.com/thing:363466
remixed in tinkercad https://tinkercad.com/things/fTdMDM1E2Kp
V2 https://tinkercad.com/things/6KCDvGbv9ad