This is a very unique compact ball case, a two piece screw together design.

Please note that the threads are pretty tight.  Depending on the tuning of your printer, you may need to san the threads some to get it to screw together all the way initially.  Rubbing bar soap or wax on the threads will help lubricate it for easier screwing as well.

I enabled supports in cura because I was worried about the bottom of the lip on the base, and the handle and top of the dome and the handle on the top piece.  

Printed on the Sovol SV06 Plus.