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Cable Management

Discussion in 'Lighting and Electrics' started by VegasLites, Oct 21, 2008.

  1. VegasLites

    VegasLites Member

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    Hi all!
    I was wondering if you all would take a moment to think about cable management solutions with me. I have a LX truss that will have to move in and out over a 100 foot height, with 16, 208v 9 amp, moving lights on it. It moves via an automated wench motor. I have some thoughts but need some additional input. Feel like putting your brains to this?:cool:
     
  2. BillESC

    BillESC Well-Known Member Premium Member

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    How about rigging your cable bundle like an Austrian curtain. Install rings every 24 to 36 inches and it should stack fine.
     
  3. gafftaper

    gafftaper Senior Team Senior Team Fight Leukemia

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    What's your budget? Is it a permanent install or road show? There are some fancy retractor devices that can handle that job but they will cost you and I think they are only for permanent install.
     
  4. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    The wench pulled the winch ashore.:twisted:

    I like systems such as the http://www.ssrc.biz/cms.pdf from SSRC.
    [​IMG]

    Or the type that looks like a large wok, that the multi-cable coils itself into/out-of, on top of the batten/truss.
     
  5. VegasLites

    VegasLites Member

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    Winch.... yeah, yeah.
    The SSCR cable management that you pictured is really nice but they have an 80' travel limit. The cable reels are great...but they can only handle 1 cable at a time (de-rated) and at $5000 a pop even a good budget would feel the strain.
    The basket catch (Wok) method would work but we are talking about 100'. That's one big Wok and space between line sets is tight. See it's a conundrum.
    Oh, and this would be for a permanent show.
     
  6. Sony

    Sony Active Member

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    What is wrong with a standard counterweight and pully system? One where you have a 100 foot cable and then in the center of that cable is a cable clamp and then a line going up to a pully or multiple pullies in the ceiling and a counterweight on the other end which takes up the slack.

    When retracted the cable looks like a big W going from the truss to the Junction Box in the ceiling and it would only hang down about 25' in this case which should be well out of view up in your fly tower.

    We use this system at MVPAC and each electric has 2 or 3 Multicables going to it, granted it's only 45' but I don't see why it couldn't be scaled up. I can't get pics for you right now because I'm not near MVPAC but I can get pictures of the similar system we use at my college.
     
    Last edited: Oct 21, 2008
  7. lieperjp

    lieperjp Well-Known Member

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    On our systems the cables are run through a bendable plastic conduit to the raceway. Towards the middle of the conduit there is a wire that runs to the same (manual) winch that raises and lowers the raceway. If you could figure out the proper way to do that on your system, it seems pretty easy to implement (except a lot of elbow grease to do the install.)
     
  8. Footer

    Footer Senior Team Senior Team Premium Member

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    Thats a good way to do it on the cheap, just be sure that there is NOTHING on the truss that the cable can snag.

    The real question is, is this something that will track 10 times a show or just move when it needs something done to it?
     
  9. VegasLites

    VegasLites Member

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    These are all great ideas! I am a big believer in the counter weight system, sometimes simple is the best.
    Yes it will travel in and out at least 10 times in the show.
     
  10. Sony

    Sony Active Member

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    Occams Razor always suggests the simplest solution is most likely the best one. Sometimes a simple counterweight and pully system is way more reliable and robust then a relatively more complex pantograph or austrian curtain system since there are less things to go wrong.
     
  11. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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