Prusa i3 MK3 Alternative part cooling duct
thingiverse
Update 23-Aug-2018: I've just published an updated version, but am leaving this up because many people really like the nozzle viewing cutout. Check out the new design here - https://www.thingiverse.com/thing:3063554 This is a simple alternative part cooling duct for use on an Original Prusa i3 MK3 printer. Print it, swap out the old one, and you're good to go. The exits are carefully aimed just below the nozzle and from 3 different sides. I've also included a viewing slot so that you can see the nozzle more clearly (similar, but not as open as the one from here https://www.thingiverse.com/thing:2065461). I'll add some extra photos of the final part on its own once I've printed off this iteration, which only has some text and cosmetic fillets added.
With this file you will be able to print Prusa i3 MK3 Alternative part cooling duct with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Prusa i3 MK3 Alternative part cooling duct .