This is a sphere puzzle and it is also a first prototype of a project of Kerry Williams from Alaska, who doesn't have a web presence, to build large objects from many 3d printed puzzle pieces. Collaborators on this project are welcome, please write me if you are interested in it. 

If you want puzzle pieces in your favorite size or with your favorite features, I'd recommend using the OpenSCAD file because the gap between the pieces is crucial for it to work well and the gap doesn't scale properly if you change the size of the pieces too much.