I created this design in tinkercad a few months ago to make my own enclosure for my printer, but I've finally found the time to share it. I would love suggestions for improvements, but it has worked amazing for me for the past couple of months. This design has a few different parts, and if you are capable of cutting some cardboard strips, then you'll be able to make this easily. Although I'm not using them, I also included the files for some edge pieces that should fit snugly onto the cardboard, giving the edges a finished look. I included a single file, and you can easily adjust the height to fit along the edges. Just take the length of the strip between the corners and split that up to find out the height you should do the edge pieces. The width can also be adjusted to fit as needed.
The enclosure is made of 4 plain corners in the back, and 4 special hinge corners in the front to allow you to create doors to the enclosure. I do plan on making improvements in the future, but you just need to print 4 of the hinge pieces, and they slide easily onto the corners, creation a basic hinge for the doors. My favorite thing about this design is that it can be easily made to fit literally any printer, as long as you have cardboard that is long enough. You just need to cut 12 cardboard strips, each about 2 inches wide and desired length for the print enclosure. Then crease and fold in half(lengthwise), and they should fit into the corner pieces. I suggest finding some sort of cheap clear sheet (i think I used some extra plexiglass I had) and cut to the size of the side it will be on. You can just attach it to the cardboard strips, although I might make a version of this with slots in the corner pieces for it to fit into. When designing this I made sure that It was support free, for easy printing. This should be able to print and fit on any printer, as mine has one of the smallest build volumes there is (Mp Select Mini V2).
As you can see in the pictures, I don't have any doors. That's because I made doors, but used cheap tape from the 99-cent store. They began to fall apart, but I kept the plexiglass I had used to make new ones later. I hope you enjoy, and please comment on your thoughts. :)
P.S. I stacked 2 of the plain corners and turned one, and that inspired the design for my logo!
You should also check out this design: https://www.myminifactory.com/object/3d-print-96842