Edit** I failed to include the files for the lid. Added Now***
When I decided to move all the electronics for my Ender 3 to the under side of the Lack Enclosure, I wanted to pull as many Amps as possible off the Gen L board. I also didn't want a hodge podge of wire nuts, butt splices and solder joints under the table. I will have a 110V heated bed now plus the MKS PWC so I needed both 24V and 120V.
I designed this Enclosure around a 5cm x 7cm single sided PCB. Standard terminal connections are used as well. I am including the FreeCad Files as well so you can add holes or slots to fit your needs. Holes are 10mm from the bottom to center of the connection points. The Board snaps into the lower portion. Lid snaps on tight, you may want to zip tie it is your tolerances are off on your printer. 3MM attaching holes.
I made a full bottom version and a lite version,
Please practice safe techniques and practices when messing with electricity
3D Solutech PLA