Ender 3 Vent Ring
Description
After trying a LOT of various vent ducts, I have resorted to designing my own for the modern age. I say that because quite a few ducts I've found were actually designed for an older (post-2019) version of the Ender 3 with slightly different clearances around the extruder and vent opening. This vent is as close as I could to taking up as little space under the extruder, giving plenty of space to avoid rubbing the ongoing print for a long while, provided it is made of PETG. I originally was trying to make the vent area entirely symmetrical but after several failed designs in Fusion 360, I accidentally made this asymmetrical design. Oops. But it should still work great. It also has a solution to something I've struggled with in other ducts: interior supports. It not only has lines across the inside to guide airflow, but it also has simple chamfer transitions to support the bridging layers and prevent them from sagging (especially with PETG) and obstructing airflow. I have also included a version without these chamfers in case you prefer that style. This is one of the first times I've published something to here, so please give me feedback on this vent, I want it to do it's job well!
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