The Spintronics Virtual Pack includes the electronic plans to build your own spintronic parts or to design new ones.  The plans come with all of the spintronic parts CAD files (in stl and stp) as well as a PDF of the puzzle books (Act One, Act Two, and Power Pack) - in English.  Information on what other hardware is needed to build the complete parts is also included.

Note that most of the spintronic parts aren't especially easy to 3D print and assemble. They are not print-in-place designs.