This is still under development but I don't have the time or filament to continue with it for the near future, so I thought I'd leave it here for the community!
The idea is having a simple box where relays just fit in, with a slider and a lid that enclosure them from dust. There is no back pannel as there are holes to screw half of a PCB where you can connect many wires to ease on the power input and all.
Super simple, super janky, just the way I like it :D
Speaking of likes, don't forget to leave one!
The author hasn't provided the model origin yet.