I looked at multiple different cnc arduino cases and tried to remix a few of them, in the end i rebuilt the entire thing from scratch.
This is simple box with detachable end panels and lid, one end panel has an opening for a 20mm cable gland.
The box has a dovetail slot in the bottom to enable mounting onto any other dovetail adapter, in my case i've used it as part of a solar tracker mount, and the pictures and additional parts reflect this.
I used 4 brass stand offs on the pictured version, but the uploaded version has the plastic standoffs incorporated
The author marked this model as their own original creation.