Creality Ender 3 V2 PSU terminal cover
I remixed is because the original design didn’t have enough width for the cables to exit the PSU compartment.
The original power supply cover for the Ender 3 v2 (and v2 neo) restricts the airflow to the power supply so the fan ramps up to max speed as soon as you start printing. This is both noisy and not great for airflow.
This cover protects the 230v and 24v terminals on the power supply while letting the fan and vents have much better airflow.
While you’re doing this upgrade, it’s probably worth replacing the noisy standard fan in the PSU with a quieter 60mm 24v fan. I used a Sunon fan with a 330ohm resistor but this fan on amazon.com seems to get good reviews and it’s $10 for two.
Pictures
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