Ender 5 PSU Fan and Buck Converter mount

thingiverse

WARNING: Using this cover the same way I have exposes mains voltage to you, your children, pets, grandma and others. This is not a safe situation and you do so at your own risk. I upgraded my Ender 5 with a Duet Wifi board, which took up almost the entire enclosure with the board and wiring. To fit in the PSU and cool it silently, I remixed this cover to support an external 80mm dual BB fan I had leftover from a PC. Since this fan is 12V, I needed a 12V supply to power it. I also have a 12V silent fan inside the case to cool the Duet. To kill two birds with one stone, I used a buck converter from Amazon to reduce 24V to 12V and integrated it into the PSU cover using a mount found on Thingiverse. To terminate the wiring from the new 12V source, I added a notch to the case to take a PCB pin header. I had some 2020 90-degree angles that I used to mount/ground the PSU case to the frame. The metal mount also helps with cooling the PSU. This is a quick and dirty mod, and I will likely revisit it with a power inlet relocation layer in the future, but for now I'm printing away. The specific buck converter I used is available here: https://www.amazon.com/gp/product/B01GJ0SC2C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1