Subject:
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Re: Rotation Contacts
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 4 Jan 2001 16:32:18 GMT
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Original-From:
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John Barnes <barnes@sensors!nospam!.com>
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Viewed:
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749 times
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This is a modestly easy task, if you use a telephone cord
untangler. I have "modified" a number of these to make 4 wire
rotating connections, typically for feeding through the large
turntable. By carefully cutting the metal part, you can turn
2x4 pieces of electric plating into a dual 2x2. My most recent
version is actually permanently glued in place in a turntable
with the dual 2x2 electric plating on top and bottom to provide
easy contact. I have used it to provide an outbound motor
connection and inbound sensor connection to build a fully
pannable (sp?) sensor platform.
The electric plating is readily available through shop-at-home. The
turntables came from pitsco at 2 for $10 and the cord untanglers
can be obtained from most grocery stores or from Radio Shack.
JB
> Has anyone ever tried to make a set of electrical contacts that allow
> rotation? What I want to do is have an electric motor on my crane using the
> large turntable from 8480 but I don't want a flopy wire in the way of
> rotation. Any ideas or thoughts would be greatly appreciated.
>
> Fred
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Message has 2 Replies:
 | | Re: Rotation Contacts
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| "John Barnes" <lego-robotics@crynwr.com> wrote in message news:4.2.0.58.200101...lserver... (...) How much current do you think you can put through one of these? Also, do you get any contact bouncing while the thing rotates that might be read as a (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
| | | Re: Rotation Contacts
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| Michael Gasperi" wrote: >> This is a modestly easy task, if you use a telephone cord untangler. > >How much current do you think you can put through one of these? Also, do >you get any contact bouncing while the thing rotates that might be read as a (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
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Message is in Reply To:
| | Rotation Contacts
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| Has anyone ever tried to make a set of electrical contacts that allow rotation? What I want to do is have an electric motor on my crane using the large turntable from 8480 but I don't want a flopy wire in the way of rotation. Any ideas or thoughts (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
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