I was having fitment issues with the extruder stepper motor so i made a little extension duct to make the fan slightly more angled.
https://www.printables.com/model/984440-ender-3-bullseye-fan-duct-angled-extention
Ender 3 + Direct Drive "Bullseye" Fan Duct
I wanted to use the excellent bullseye fan duct on my Ender 3 but I've changed mine to direct drive with the genuine…
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updated September 28, 2022
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Very nice. Now I can work on making my sons Ender 3 pro a DD. Thanks. I really like the bullseye duct.
DOESNT fit the arms are to big dont use if you have a original. its a bad way to spend 4,5 hours.