This is a new variation of my equipment box that I made back in March of 2020 for the Anycubic Mega I3 Mega. You can check out my older design here:
https://www.printables.com/prints/33156-anycubic-i3-mega-clip-on-box
This one is a bit bigger than the old one, and while it still clips to the top of the printer, it's oriented so that it does not overhang off the back of the printer. This makes it a lot less likely that the hotend wires or bowden tube will catch on it during taller prints.
If this design was useful to you, please post a make!
Check out my other Anycubic i3 Mega accessories at: https://www.printables.com/social/55222-tyler/collections/95780