Date: Sat, 24 May 1997 01:45:35 -0400
From: Joe Dunfee <jdunfee-AT-shadow.net>
Subject: Re: Removable Rod Arms


>Snap fit like a spring ball bearing connector?
 
  I think that would be undesirable because you really want the arm rod to
be restricted in two of the three axes of motion. The kind of connection I
like allows me to hold the rod out and the hands stay "thumbs up". But I can
twist the rod and the hand will bend at the wrist. Also, I can drop the arm
rod and the hand will still hang in a natural position.
  If it were firmly attached so that there were no movement, when I dropped
the arm rod, the hand would still try to stay "Thumbs up" position, which is
quite unnaturea.
  If the arm rod were attached by a ball and socket joint, then there would
be no way to control the hand by twisting the arm rod.

  Hmmm... that wasn't much help, I only said what I want as an end result of
the hand/rod connection and why the ball and socket joint wouldn't work. I
still don't have a design that I really like for a detachable arm rod.

Joe Dunfee
Miami, Florida USA



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