- World-North/South-Final: 2 Pieces split case
- World-Full: The full thing
- World-North/South-Filled-NoSupport: 2 Pieces non-hollowed that should require no support (I just tweaked it to have no 30 degrees overhangs)
I recommended printing the split version. Printing it as a whole can be tricky because of warping.
The world connector bits need to printed x2, put them in the holes of the south half. Then you can easily close and open the upper half.