
Ender-3 PSU Cover 92 mm fan LM2596
thingiverse
You can use a 92mm fan along with a LM2596 DC-DC stepdown converter. The internal fan connector of the PSU operates at 24 V, whereas common fans run on 12 V. This cover allows for reduced noise from your Ender-3 PSU. Changing anything on the printer's PSU voids the warranty and involves dealing with high voltages. If you're unsure about what you're doing, it's best to avoid any modifications.
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