Sphere Trisection / Dissection, Reid Dissection

#### Sphere Trisection/Dissection: Three Congruent Pieces

Yet another appealing dissection of a sphere into three congruent pieces. This design is based on a Reid dissection of a cube (https://www.thingiverse.com/thing:2993980). It is interesting to embed a sphere in a cube and play with all sorts of manipulations! Of course, it takes three copies to make a sphere. I have included a shelled one, too, just to add more flavor.

####About Printing

There is a small hanging piece in t