3d printer modular barrier system

I needed quick and inexpensive way to protect my 3d printer(s) from the ever looming threat of HVAC! Thus was born these super simple little guys. You can use standard cardboard and construct any shape / height combo youd like. It does a great job and is super sturdy if you can evenly cut the cardboard. I DID design a bit of wiggle room on the z axis. Two of the slots were designed with "bites" in them for thinner cardboard. Unfortunately at the scale they were created at they do not show up in