Scott, Jeanne and I have used many of these for video installations: 
https://www.sldlighting.com/ac-motor-turntable-with-rotating-outlet-50-lb-capacity-12-top
  Reliable.  We've ordered them with 1rpm motors.

Good luck!

j

On Jul 25, 2016, at 9:06 AM, Mani Mazinani <[email protected]> wrote:

> Marco's machine looks wonderful.  Toronto artist John Shipman has constructed 
> what Scott is looking for an installation using slide projectors.  It uses 
> the slip ring things mentioned previously. His website will have more 
> information and his email address as well. 
> 
> Best, 
> Mani
> 
> 
> On Jul 25, 2016 07:15, "Marco Poloni" <[email protected]> wrote:
> Hello,
> Years ago I built some camera pan/tilt heads using 10- to 12- contacts
> electrical slip rings to power the head, transmit positional data data
> to the device, and collect the video signal. See pic. They work
> fantastic. I can't recall which brand of rings I used. I later learned
> they were a sub-contractor of Lockheed-Martin... Better to choose a
> some supplier that is not affiliated to the military industry. Moflon
> maybe?
> 
> My two cents.
> 
> Best,
> Marco
> 
> On 25 July 2016 at 06:12, Bryan Konefsky <[email protected]> wrote:
> > Hey Scott and all - regarding rotating turntables that include rotating AC -
> > see this link:
> >
> > http://www.vuemore.com/?gclid=Cj0KEQjwztG8BRCJgseTvZLctr8BEiQAA_kBD9Fw3HF-6RCdrntuK6afHo7TQApVQy3Bx_eRTy707z0aApsm8P8HAQ
> >
> > I've purchased several over the years and they are fantastic... I suspect if
> > you add a rheostat you could also change the rpms of the unit.
> >
> > best,
> > bryan konefsky
> >
> > On Sun, Jul 24, 2016 at 8:26 PM, Karl Reinsalu <[email protected]> wrote:
> >>
> >> I recall a 35mm installation that used an ac cable with a pre-built slip
> >> ring design. They built the turntable and film looper themselves, but
> >> sourced the cable from a film industry rental house. Might be worth an
> >> inquiry with a production house like William F Whites or similar. Otherwise
> >> possibly an industrial electrical parts supplier? Best of luck!
> >>
> >> __
> >> Karl Reinsalu - Cinematography
> >> "Sent from my pocket through space and time."
> >>
> >>
> >> On Jul 24, 2016 11:02 PM, "Ryder White" <[email protected]> wrote:
> >>>
> >>> Hi Scott,
> >>>
> >>> I've been trying to figure this out too for some time, and as far as I
> >>> can tell you need something like this:
> >>>
> >>> https://www.sparkfun.com/products/13063
> >>>
> >>> Or any other sort of "slip ring" that is rated for sufficient current.
> >>> The issue with a turntable is you would probably have to rig your power
> >>> supply from the top since the slip ring has to be on the radial axis of 
> >>> the
> >>> platform, and underneath the turntable you'd have a bunch of moving parts
> >>> and gak. But this is all conjecture since I've never followed through on 
> >>> it.
> >>> If anyone out there has executed something like this I would be really
> >>> interested to see some pictures.
> >>>
> >>> Best,
> >>>
> >>> Ryder
> >>>
> >>> On Sunday, 24 July 2016, Scott Stark <[email protected]> wrote:
> >>>>
> >>>> Hi all, does anyone have an idea of how to supply power to a projector
> >>>> that’s set on a rotating device such as a turntable? Is there such a 
> >>>> thing
> >>>> as a rotating power supply?
> >>>>
> >>>>
> >>>>
> >>>> I saw this – the main cylinder wouldn’t do it but the part that attaches
> >>>> to the wall does rotate 360, but I can’t quite figure how to make it 
> >>>> work.
> >>>>
> >>>>
> >>>>
> >>>> https://www.youtube.com/watch?v=u64Kn5ENkE0
> >>>>
> >>>>
> >>>>
> >>>> Just wondering if anyone’s found a device designed for such.
> >>>>
> >>>>
> >>>>
> >>>> thanks –
> >>>>
> >>>>
> >>>>
> >>>> Scott Stark
> >>>>
> >>>> scottstark.com
> >>>>
> >>>> Experimental Response Cinema
> >>>>
> >>>> Flicker
> >>>>
> >>>>
> >>>
> >>>
> >>>
> >>> --
> >>>
> >>> Sent from mobile device, please forgive typographic errors. -RTW
> >>>
> >>>
> >>> _______________________________________________
> >>> FrameWorks mailing list
> >>> [email protected]
> >>> https://mailman-mail5.webfaction.com/listinfo/frameworks
> >>>
> >>
> >> _______________________________________________
> >> FrameWorks mailing list
> >> [email protected]
> >> https://mailman-mail5.webfaction.com/listinfo/frameworks
> >>
> >
> >
> >
> > --
> > Bryan Konefsky
> > Professional product tester
> >
> > Great art has always gone to the masses, to their hopes and dreams, for that
> > spark that kindled their souls. The rest, "the many, all too many" as
> > Nietzsche called mediocrity, have been mere commodities that can be bought
> > with money, cheap glory, or social position.
> > - Emma Goldman
> >
> > _______________________________________________
> > FrameWorks mailing list
> > [email protected]
> > https://mailman-mail5.webfaction.com/listinfo/frameworks
> >
> 
> 
> 
> --
> 
> 
> 
> Marco Poloni
> http://www.theanalogueislandbureau.net
> Usedomer Strasse 8
> D – 13355 Berlin
> gsm de +49.163.6294080
> gsm ch +41.78.6322028
> skype marcopoloni
> 
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> 
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j/PrM

*************************************************

john muse
visual media scholar
haverford college
http://www.finleymuse.com
http://www.haverford.edu/faculty/jmuse
http://haverford.academia.edu/JohnMuse

*************************************************



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