Prusa Nozzle Fan Redirect (stop warping prints)

thingiverse

This is designed to snugly fit into the Prusa nozzle fan. The original model snapped off during printing due to upward warpage of a heavily overhanging section, which was caused by inefficient airflow to the nozzle of the Prusa design. Not to worry, though - this improved version takes advantage of toyotaboy02's model and uses a tried-and-tested interfacing part that fits perfectly inside the nozzle fan. When I pushed mine in, I heard a crack, so I've uploaded a slightly slimmer fit model as well. You can scale up or down as needed to suit your requirements. To follow up: The print quality on overhanging parts has improved dramatically, particularly on the right-hand side. I realize that the far side of the vent actually throws air backwards and probably past the nozzle, so I'll likely improve this in the future. However, the current version is a night-and-day difference in terms of quality, so unless I encounter further problems, it should suffice for my printer. Edit: I couldn't let it rest, so I finished modifying the design to allow for more efficient airflow around the side. Untested yet, but it will definitely work better than the current version - even a tiny amount of airflow can divert a larger one.