http://www.brickshelf.com/cgi-bin/gallery.cgi?f=418188
Lets take the arm for closer examination. In particular it's right arm as we can clearly see the shoulder assembly and the elbow assembly:
On the cockpit chassis we see the clips holding onto the T pin. The shaft of the T pin goes horizontal into some brick in the arm.... OK, got it.
What I don't get is how to transition from where the T pin interface there is horizontal to now a similar T pin interface vertically in the elbow.
Please enlighten me, thanks!



