A remix of Igor's cooling fan frame for Portabee printer. This one mounts using the bottom screw on the extruder (which has enough length originally for it). It seems a better fit than the long original which needs to be mounted on the spring-screws.
Same 40mm size fan was used, I connected it to the original 20mm fan's slot and connected that one to the extra fan slot. This way filament is cooled all the time while the print gets cooled only after the initial layers. Klapton tape required around the nozzle head area so it doesn't cool it too much. Kudos to Igor for the original idea.
You might want to rotate it so that the wider platform is touching the printbed. This is really easy if you use Cura, just rotate manully a bit and then "position flat" (in the rotation menu).
Print using whatever settings work. I used the default 0.3mm size with no support or adhesion helpers. Some warping can happen in the angled part, cut out to make it smooth and straight if needed (knife works fine).