Subject:
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Re: 360 deg. swiveling electrical connection
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 4 Feb 1999 17:52:26 GMT
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Original-From:
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Medical Informatics Consulting <medinfo@aros.NOMORESPAMnet>
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Viewed:
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1172 times
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Very ingenious use of Lego. I completely forgot about this method
(borrowed from the real world). You will, of course, need to do this on
each end of the axle.
Can probably use either a thin piece of copper cut into strip to fit
inside of bushing. Aluminium foil would probably work for a prototype.
You can also use a piece of copper strip which has bent into a "Y" shape
as a "brush" to maintain the electrical circuit.
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Matt
medinfo@aros.net
On Thu, 4 Feb 1999, Linc Smith wrote:
> Ben Kimball wrote in message ...
> > Has anyone figured out a good way to maintain an electrical connection
> > between two parts separated by a 360 deg. rotating joint? Wire would just
> > twist up eventually and pop loose or tear.
>
>
> What about an axle with wires running along two of the groves (groves made
> by the cross section of the axle). You could have a two bands of thin metal
> sheeting wrapped around the axle. To each band you have on wire attached
> (maybe soldered). The insulated wire from the lower band would pass under
> the upper band (in the space provided by the grove). By using contacts from
> the RCX similar to a motor brushing, the axle can be turned any direction
> and still maintain power
>
> | |
> | |
> [B][neg]
> [B][pos]
> | |
> | |
>
> Vertical axle with two bands [B] wrapped around it. Wires would run up the
> groves; the lower bands wire passing under the upper band. Wires not shown.
> Glue could be used to secure the bands in place. The [neg] and [pos]
> represent the brushings.
>
> LINC
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: 360 deg. swiveling electrical connection
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| Ben Kimball wrote in message ... (...) What about an axle with wires running along two of the groves (groves made by the cross section of the axle). You could have a two bands of thin metal sheeting wrapped around the axle. To each band you have on (...) (26 years ago, 4-Feb-99, to lugnet.robotics)
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