40mm Fan Mount - Nozzle Cooling Bar
http://www.thingiverse.com/thing:378801
I drilled and tapped the FanMountJoin.STL for a M3 screw
I also drilled out the FanMount2.STL
I made this adapter so i can mount it using M3 screws to the block.
I am using a 40mm Nozzle throat.