here are the InMoov's forearm parts as solid CAD for those who might be interested.
They are also available on my blog here :
STEP and IGES available.
More to come...
UPDATED November 15th 2013
The following parts are now also available as step and iges :
robcap3V1+elbowshaftgearV1 (as single part)
These CAD are not the result of a conversion process.
They are the result of a complete retro-engineering of the original STL files.
They've been designed with hi accuracy and there's no more parts overlapping with each other.
They are intended for motion analysis in a CAD solid app but can also be used to make better "prints" than with the original STL files.
It will then all depend on the tessellation you will apply during the STL conversion...