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Subject: 
Re: Rotary electrical coupling
Newsgroups: 
lugnet.robotics, lugnet.robotics.rcx
Date: 
Tue, 5 Oct 1999 12:55:54 GMT
Viewed: 
745 times
  
G'Day
If you are willing to use 'non-pure Lego' parts, then Radio Shack has a
telephone cord 'detangler' that plugs into standard RJ-11 jacks, has 4
conductors, and 360 degree motion.  Works rather well, esp. with some
contact enhancer for a cleaner (less 'noisy') electrical path.
Cheers!
Oliver

Jeffrey Hazen <jeffrey.hazen@northmill.net> wrote in message
news:01BF0C69.13794FC0@northmill1...
I have been working (when I should have been Working) on two things which
may be of general interest.

The first is a rotary electrical coupling, which allows you to pass 4 • wires
through a rotary joint.  I built the prototype tonight, and I think it
works pretty well IMHO.  I developed this because I wanted to be able to • do
a full 360 degree scan with a light sensor, without having to worry about
winding up the motor and sensor wires.  The design is probably limited to • 4
wires, due to the number of grooves on the standard Technic shaft, • although
you could have 8 if you didn't overload them.  This would make the thing
rather long, though.
<snip>



Message is in Reply To:
  Rotary electrical coupling
 
I have been working (when I should have been Working) on two things which may be of general interest. The first is a rotary electrical coupling, which allows you to pass 4 wires through a rotary joint. I built the prototype tonight, and I think it (...) (25 years ago, 2-Oct-99, to lugnet.robotics, lugnet.robotics.rcx)

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