Could it be used for high precision movements? For example a stepper motor with ...

Keyframe on July 9, 2015 | parent | context | favorite | on: Fist-sized 11M-to-1 gearbox

Could it be used for high precision movements? For example a stepper motor with very small and large movements? I know it's mentioned in the article.. but if it could be done then one could maybe create a CNC for DIY CMOS or something.