Project to create an open-source 3D printed 6 DoF input device
Provisional design ideas:
FreeCAD for the mechanical design
KiCAD for the electronics
Make the electronics an Arduino Uno shield
Single sided PCB if possible, so easilly milled
Force sensing resistors in a bridge as the sensing elements
5V supply from Arduino from USB
Compatible with the Spacenav driver http://spacenav.sourceforge.net/