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5020 blower for Neptune 3 pro — image 1
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5020 blower for Neptune 3 pro

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Model cooling duct for Elegoo Neptune 3 pro with 5020 blower.

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One more cooling fan duct. Blows to the right place, not just around.
Weigh 5.22 grams. Cut unused screew hole (and half of the used) from the blower if you want to save more weight.
I printed with PETG. You use whatever you like.
I printed horizontally - no need for supports inside the duct. It would be hard to extract support from inside a thin shell.

To attach the duct, use genuine screews.
To attach the blower, use one screew. Push some filament into the screew hole with a soldering iron - make the hole smaller.

Adjust the bottom to 1 mm from the hotend nozzle bottom.

One-sided cooling with this blower is enough. At 50% it's silent.
https://www.aliexpress.com/item/1005007594043332.html -  5020 Ball Bearing Blower Fan 24V
If you want two blowers on both sides, just buy two blowers and mirror the duct.