the dreaded Chinese Puzzle

[james accordino]

--- Marc Swanson <marcswanson at mediaone.net> wrote:
> One other thing of
> note:  It seemed that at
> least on the CV I took apart the outer joint had way
> more movement in it
> than the inner joint.  Is this correct?  Why is this
> so:  I didn't have a
> chance to take apart the outer joint and compare it
> to the inner joint...
> 
If you compare the required range of motion during
operation of the inner and outer joint, the reasoning
should be apparent.  The outer must be free to
continue to rotate while being contorted in every
conceivable direction.  The inner is "fixed" to the
differential and only needs to adjust "angle".  This
also requires some "length" adjustment.

Jim Accordino