Design of a box for the electronics of an Ender3 enclosure, with the original Creality board and a Raspberry Pi 3b. It also includes a space for ventilating the box with two fans, I connected one of12V connected to the Creality board and another of 5V connected to the Raspberry Pi.

If you close your Ender3, you will need to remove the electronics from the box. This design allows you to store it in a well-ventilated area and is designed to be screwed sideways to a wall or table.