I have updated my STL files and it looks like they are not currently downloadable here. It is unclear to me if and when they will be. If you have trouble downloading this design, please try downloading it from Thingiverse. This text will be removed once I know it is downloadable here.
This is inspired by another popular equipment box for the Anycubic i3 Mega, but I've created it from scratch with a few notable design differences.
1) The whole thing clips together and then clips to the printer with proper working tolerances, and no glue or special tools required (My main point of making this).
2) The width of the box is pretty much exactly a quarter of the available space on top of the printer, so if you run out of space you can print up to three more (in theory) and they should all fit without leaving any wasted space. (untested)
3) The front of the bottom of the box is flat rather than angled leaving a bit more room in that direction.
4) More Attractive (IMO). Optional AnyCubic logo. (I have uploaded two versions, one with logo, and one that is blank)
UPDATE Sep 20, 2020: Finally got the word that my redesign works as well as the old one, and since I think it looks better, I've removed the old design. The white box in the pictures is the new version (no logo version)
***WARNING*** : With this design (and anything that clips on to the top of your printer) be careful if you are going to be printing very tall things. It is possible for the wires or bowden tube to collide with the bottom of the clips or catch on things.
Please tip if this is useful to you and you can afford it :)