Ender 3 Improved Fan Silencer
thingiverse
The original silencer works very well but, the mounting clips are lose and can break overtime. Here is a redesign that fixes that. Works with ender 3 stock fan shroud. Noise reduction up to 5db and reduces high pitch whine. Doesn't affect airflow. I simply combined it with this design https://www.thingiverse.com/thing:3159822 which isn't as quiet but has a better mount.
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