Evertible Platonic Solids

There are quite some evertible platonic solids available and I plan to make them available as a toy in this thing.
Generally they consist of a header and a belt. Once you remove the header, the belt
becomes evertible.
How to make them:
Please print the items as is without any addiontional rotation using support.
It is a good idea to use different colors for that.
Remove the support and finalize the holes with a 2 mm drill in belt objects
Then use filament strips to connect the parts of the belt.
Schneider Cube: Print 2 Headers and 4 Sets of Belt pieces. Originator: Konrad Schneider
Sykora Octaeder: Print 2 Headers and 6 Sets of Belt pieces. Originator: Friedemann and Immo Sykora
Maas Dodekaeder: Print 2 Headers and 10 Sets of Belt Pieces: Originator: Wolfgang Maas
To come:
- Tetrahedron from Franz Sykora
- Cube from Robert Byrnes
- Cube from Paul Schatz
- Cube from Wolfgang Maas
- Octahedron from Robert Byrnes
- Dodecahedron from Robert Byrnes
- Dodecahedron from Immo Sykora