Be careful when breaking in the joints, or the joints might literally break
I made this model in Tinkercad, and it was a very painful process getting it to a point where it could be exported, but I finally have done it after hours of work and am now able to share it. The model is a cat. His name is Carl. And he can be folded into a kind-of-cube shape, better known as a rectangular prism.
Printing:
Carl's joints did not print correctly on my Anycubic, but printed fine on my Sovol. I recommend printing the test joint first to make sure your printer can handle it. The model is a little large at 100% (22 cm long) and might not fit on some smaller printer's build plates. I printed it at 70% (only 15 cm long) and it printed with some problems. The joints were slightly fused together, and some connections broke as they were weak. I also think I was using some filament that had absorbed some moisture, so, again, I recommend printing the test joint at whatever size you are trying.
After Printing:
The joints should (and will be) slightly stuck at first. Simply move then in the directions they are meant to move and they should begin working. The overhanging parts of his legs and tail may need to be trimmed for full functionality. If you don't want to have to do this, print with supports, thought hen you will have to trim the supports off, so take your pick. Enjoy Carl the Cat both in cat form and rectangle form. Please note that to move him from one form to the other will cause the segments to grind against each other a little. It is meant to do this so that when in one form or the other it stays in that form.
If you have questions or suggestions on how to improve this model, comment them on the model or message me and I will do my best to respond. Have fun printing!
The author marked this model as their own original creation.