Semi-Circular Anet A8 Fan Duct 3mm and 5 mm drop

This is a remix of the popular semi-circular fan duct for the Anet A8. There are two versions that drop the duct down 3 mm and 5 mm. The 5 mm version works well on my machine without excessively cooling the extruder. Print from ABS or PETG for long term durability. PLA will eventually sag due to proximity to hot end.

1-21-18 Update: Re-uploaded 5mm fan duct with corrections to prevent printing issues.