Was looking for a good 3D printable Bey Blade Arena for my son to play with, found some cool designs, and printed one. Needless to say, the print warped during printing and it crashed numerous times during printing the bottom layer, and if I was not wathcing for the first few hours it would have failed as I had to grab some splatter strings from the bed every now and again so they did not cause a fail. Whoever designed it did not think about how it could be 3D printed well.
There is another multi-part arena that looks amazing I will try to build in the future, though it requires epoxying pieces together, which I do not want to do at this time, so I opened up Inventor Fusion and created this circular designed arena. The goal was to create an arena that would print well and not have to worry about warping.