I measured an existing printed X carriage side mount to make the basic shape for this fan mount. I lengthened it and angled it to support the mounting of a set of Lulzbot TAZ 6 cooling fan ducts and standard 40mm fans. Some slight modification of the fan ducts might need to be done in order to clear hot end wiring and extruder nozzle heater block. This addition of fan mounts and ducts greatly reduced the edge warping I was experiencing while printing PLA due to over cooling of generally directed cooling fan air blowing all over one side of the print.
You will have to slightly drill out the holes for screws. In my case, I drilled out for m3 screws. Some slight filing for an M3 nut trap for mounting.
Being a beginner in Fusion 360, I stumbled my way through various tutorials on YouTube in order to come up with this mount. I drew it for only one side and mirrored it as appropriate in Cura to make a matching Left and Right hand side. Both are supplied here as well as the .STEP and .f3d files.