Ender 3 Mainboard Cover w/ Buck Converter Holder

thingiverse

I was changing out some fans for my Printer and accidentally cut the wrong wires so now I'm stuck with a 40mm Noctua fan for my mainboard when I meant to sub it for the hot end fan. Not a big deal, just a quieter fan I guess. For those who know, you need a buck converter to drop the voltage from 24v to 12v, and I'm not a big fan of just leaving it hanging or double sided taping it. Found this design for a mainboard cover to help put a BL touch on the ender 3, which I'm planning to use in the future, but I also wanted to add a spot to screw in the buck converter as well. I'm using the LM2596 buck converter, which u can find on amazon or eBay for pretty cheap. These are also super useful if you want to put sub Noctua fans for your printer to be a bit more silent. The fan in question is the NF-A4x10 FLX. It replaces the hot end fan or the mainboard fan 1 to 1. You could remix this further to make more room for a bigger fan if u wanted but I'm okay with this. I've also included a second file that has room for 2 buck converters so If you want to add a mainboard fan AND a hot end fan you can do so and have them neatly attached to the mainboard fan cover for ease of use and cable management. I dont think this will work with an ender3 pro or v2 as I'm fairly certain they have different mainboard housings. Remixed with this model as well as using this PSU cover https://www.thingiverse.com/thing:3413774 to help me cut out the buck converter mounting. Then I simply used meshmixer to cut the buck converter mounts that were already nicely lined up and pasted it onto mistic100's design. Then simply combined it all and exported the stl to Cura. Really simple stuff, luckily since there's so many designs available I was able to add 2 together and come out with a nice design to fit my needs.