Prusa MK4 Stronger Improved Fan Duct

Important announcement This model was originally designed to fix some issues I had printing the duct fan designed by @KyleTW_593847. Since then he has done MAJOR improvements and I switched back to the upgraded version. I suggest everyone will do the same. So use https://www.printables.com/model/588524-prusa-mk4-improved-fan-duct-and-hotend-fan-shroud- instead of this one. A big shoutout to Kyle for providing the model and for constantly doing upgrade after upgrade of the model. This really is great work! Details This is based on the model by @KyleTW_593847, which I think is the best duct fan upgrade for the MK4 so far. But I had issues printing the top most surface of the fan duct, probably because the IS version of the MK4 uses much higher temperatures and the filament kept sagging into the duct. So I did increase the strength of the duct top layer for better print quality. Also I did include an additional bridge to anchor the first layer of the duct top surface (see images). For me this did solve my printing issues. Hope this also helps someone else. Thanks to @KyleTW_593847 for creating this model in the first place. 👍