Semi-Circular Anet A8 Fan Duct 3mm and 5 mm drop
thingiverse
I've taken a popular semi-circular fan duct design originally made for the Anet A8 and given it a remix. There are now two versions, one that drops the duct down by 3 mm and another by 5 mm. The 5 mm version performs well on my machine without overcooling the extruder. Printing with ABS or PETG ensures long-term durability, while PLA will eventually sag due to its proximity to the hot end. 1-21-18 Update: I've re-uploaded the 5mm fan duct with corrections that prevent printing problems.
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