This design can be used on the Folgertech FT-5. It is an addition to my cooling fan mount http://www.thingiverse.com/thing:1537971
The modification for this version include a 6mm thick nema 17 motor mounting plate that allows the fan duct fan to clear the melamine extruder mount. The BLTouch mount is sturdier but has a cut away to clear the cable chain.
The BLTouch is closer to the hotend but due to the heat insulation properties of the silicon sock it should be OK.
I have also included in the files section a 30 to 40m fan adaptor. One corner is slightly cut away to better clear the fan duct.
25 Nov. centered the hot end better.
NOTE: design only to be used where the hotend is genuine E3D the blue silicon sock.
The matching fan duct that attaches is here http://www.thingiverse.com/thing:1537971
Support is only needed for the fan mount part.