[Jacek Fedorynski] had an old Magellan/SpaceMouse 3D mouse with a serial interface ... On the software side, the code emulates a 3DConnexion SpaceMouse Compact, so it can be used with software ...

The 3DConnexion Space mouse ... 3D-printed flexures instead of springs, although that has yet to prove functional. On the electronics and interfacing side of things, [John] utilises the Arduino ...