Ender 3 Pro Power Supply Cover with Fan Port Silent Mod
thingiverse
I built this to connect a Noctua fan and lower noise levels. I used the NF-A9 FLX, a Premium Quiet Fan, 3-Pin (92mm, Brown) from Amazon - https://www.amazon.com/dp/B00NEMG9B0/ref=cm_sw_r_cp_apip_dNnyyiXYDanOZ The fan is virtually silent. It's a simple design, but it functions well. Since the Ender 3 Pro power supply has built-in 12v fan ports, no buck converter is required. *Note: I believe the original Ender 3 (non-Pro) power supply cover differs in dimensions and screw hole positions, making this incompatible with that model.* 2020-09-27: I added a design for an 80mm fan.
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