 | | Rotation Contacts —Fred Carcanague
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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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| | | | | RE: Rotation Contacts —Tilman Sporkert
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| | | | | Don't forget that the turntable has a very large hole in the center. You can run all kinds of things through this hole. That gives you a couple of alternatives: - You can run the wire for the motor through the large center hole of the turntable. (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
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| | | | | Re: Rotation Contacts —Robert G. Fay
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| | | | | Usually, I feed the wire through the center of the large turntable. This will tolerate several rotations. Of course, you have to unwind it from time to time. An example is on my five axis machine at (URL) solutions would be to drive through the hole (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
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| | | | | Re: Rotation Contacts —John Barnes
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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 (...) (24 years ago, 4-Jan-01, to lugnet.robotics)
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| | | | | | Re: Rotation Contacts —Michael Gasperi
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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)
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| | | | | | Re: Rotation Contacts —John Barnes
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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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