I would welcome anyone with 3D printing experience who wants to help out with the case. I have one at the local makerspace, but have never used it. Also, I wanted to mention something about the magnet configuration. From what I can see, you can get either bar magnets or ring magnets. There are a lot of different north/south configurations, but only two that i can see as helpful for this.

Radial:

Diametric:

(Sorry, couldn't find a bar magnet diagram)

I'm going for #2, Just put the other ones on there because

Configurations:

-Bars around Bars (arrange the bars in a ring in the center, a ring on the outside

-Pros: Bars are REALLY easy to find

-Cons: Keeping a structure on that would be like REALLY hard

-Bars around Radial

-Pros: Bars are easy to find, somewhat easy to setup

-Cons: Bars need to be held together, Radial hard to find

-Radial inside radial

-Pros: Simple, Clean

-Cons: Radial magnets are hard to find, custom orders take a while