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 17:04:31 GMT
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Viewed:
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884 times
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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
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[B][neg]
[B][pos]
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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
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Message has 1 Reply:
 | | Re: 360 deg. swiveling electrical connection
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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. (...) (25 years ago, 4-Feb-99, to lugnet.robotics)
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Message is in Reply To:
| | 360 deg. swiveling electrical connection
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| (...) Cool idea. I've been working on a wheeled tank using the add/sub transmission discussed here. I have a small rotating turret on top of the beast, but hadn't yet figured out a good way to trigger the CyberSlam darts. (...) You bet! Someone said (...) (25 years ago, 2-Feb-99, to lugnet.robotics)
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