This is a box that can hold 4 IRF520 MOSFET drivers. I bought these boards from Aliexpress, so you can easily find them.
The box has a dimension of 164x86x27 cm, 2 holes with a radius of 11.5cm and 6cm to put in a power jack and a lever switch, and every MOSFET board is held in place by two holes for M3 screws.
The box has also a sliding lid, with a self-locking mechanism, and a large hole on one side to let the cables pass through it. On that side, it also has a sliding piece for some 2020 / 2040 aluminum profiles.
I put it on my Ender 3 to turn on and of the LED lights using the Raspberry Pi, and I use the hole on the side for the cables towards the Pi and the LEDs. It is a big print for just those 4 little MOSFETs, but it is comfortable to run every cable in it.
Let me know if you like it, if you print one yourself (maybe upload a
photo, I'll really appreciate it!), and also consider checking the other
stuff I make on my profile. I'm still learning how to model things, but
I have lots of ideas and I'll upload them soon!
If you also want to make a tip to me, I will really appreciate it, and
I'll think about continue making this stuffs 'cause I will know that
someone likes my design!