Bullseye dual 4010 fans duct
thingiverse
I had extra 4010 fans laying around and didn't want to lay out cash for new fans. So I remixed the original bullseye duct to accept 2 4010 fans the pic shows it in action on my Ender 5 Plus. I printed this out on my resin printer, but it should be fine on FDM as the original was.
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