Rotation & angle of universal joint?

[Roland Melkert]

OK, it works Problem iI had s that selection needed for the script reapply  is not similar to what we did before. Need to think a bit to really understand...

The fist time you applied the script to: white end, blue center, grey end, grey center
That gave the correct positional information
The second time corrects the rotational parts of the center en white end based upon the red axle instead of the 'randomly' rolled white one.