Needed an Eletronics box for my E3EZ, so I made one loosely based on a similar box by Ishampadron, over on https://www.thingiverse.com/thing:6052240.

The box has support for a single 4010 fan that sits above the first 3 stepper drivers, it also helps to cool down the CB1 by a bit, but I never had temps go above 40c even before it, so I wasnt worried about it.