Starting Mains

Discussion in 'Stringing Techniques / Stringing Machines' started by KaiserW, Apr 22, 2014.

  1. KaiserW

    KaiserW Semi-Pro

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    Hi,
    Irvin I used your method of pulling both mains and setting an anchor clamp. Then I released tension pulled the other main and clamped. Then went back to the anchor clamp main pulled tension again but when I unclamp to reclamp up by tensioner I loose all tension and drop weight falls down. Any idea what I am doing wrong? This is my first time trying this method.

    By the way your videos our great!

    Thanks
     
    #1
  2. am1899

    am1899 Rookie

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    Sounds like you skipped a step. Try this:

    1. Pull both mains
    2. Set anchor clamp
    3. Release tension
    4. Pull the unclamped main
    5. Clamp the string you just pulled as close to the tensioner as you can

    Here's the important part - dont go back to the side with the anchor clamp yet:

    6. Run in the next main on the same side
    7. Pull tension
    8. Clamp
    9. Release tension

    Now go back to the anchor clamp side - pull tension and clamp. Now you should be on your way.
     
    #2
  3. Irvin

    Irvin G.O.A.T.

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    Sounds like you are using flying clamps maybe? If you are and you pulled only one main on the side without the starting clamp you have nothing to hold the two center mains when you take the starting clamp off. Let me know what you have and I will tell you what I would do.
     
    #3
  4. gkamieneski

    gkamieneski Semi-Pro

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    I think Irvin's right. We need to find out what kind of clamps are being used in this instance. If they are fixed clamps then if the bar dropped from the workflow Kaiser was using, it would also drop from am1899's directions. The latter is just running another row in to get the clamps away from each other.
     
    #4
  5. KaiserW

    KaiserW Semi-Pro

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    Sorry fixed clamps. I am lost I followed the video.
     
    #5
  6. Irvin

    Irvin G.O.A.T.

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    Well I don't know what to say it should have worked. UNLESS when you say the drop weight fell did it just fall a little? Could have been from the string relaxing on the other main. A short video of those pulls and the weight falling would help.

    EDIT : Do you have a starting clamp?
     
    #6
  7. KaiserW

    KaiserW Semi-Pro

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    It fell all the way down. No starting clamp.
    Maybe was not clamped tight enough? Will post a video if happens again.
     
    #7
  8. Irvin

    Irvin G.O.A.T.

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    I guess it could also be dirty and improperly adjusted clamps. But like am1899 said I would tension at least two mains on the side opposite the anchor clamp.
     
    #8
  9. KaiserW

    KaiserW Semi-Pro

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    Thanks everyone, hopefully next time goes better.
     
    #9
  10. gkamieneski

    gkamieneski Semi-Pro

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    Irvin, that's all well and a good procedure, but it still isn't going to explain where all his tension went.
     
    #10
  11. jim e

    jim e Hall of Fame

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    Sounds like he may have released the other clamp rather than the anchor clamp on that last tension pull he did, and that would drop all the tension.
     
    Last edited: Apr 22, 2014
    #11
  12. Irvin

    Irvin G.O.A.T.

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    The OP said he used two fixed clamps and only released one. So one (or more) of three things happened:

    1 - Clamp(s) were dirty and slipped

    2 - Clamp(s) were/was not adjusted properly

    3 - When the drop weight fell it just dropped a small amount which could be normal.
     
    #12
  13. jim e

    jim e Hall of Fame

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    He said he lost all tension when he released the clamp , so it seems to me he released the wrong clamp, as that would do it, where a dirty clamp would only cause some slipping, but not loose all tension as he described it.That is unless his clamps were way out of adjustment, but most would see that I would assume.
     
    Last edited: Apr 22, 2014
    #13
  14. Irvin

    Irvin G.O.A.T.

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    I know jim e it just does not make sense to me that's why I asked for a short video. If he did loose all tension when he only took off one of two clamps he couldn't have had tension before. Unless of course if the OP has confused flying clamps with fixed clamps. I guess at this point almost anything is possible.

    EDIT: But then again he would not loose all tension even with flying clamps until he released the tensioner.
     
    Last edited: Apr 22, 2014
    #14
  15. KaiserW

    KaiserW Semi-Pro

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    I did release the correct clamp but obviously I did something wrong.
     
    #15
  16. Irvin

    Irvin G.O.A.T.

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    Maybe you didn't do anything wrong. The other clamp should have held the string. Next time put a paper clip on the string near but not toughing the other clamp with tension applied. If the paper clip moves in relation to the clamp anytime after removing the tension you string is slipping through the clamp.
     
    #16
  17. Muppet

    Muppet Hall of Fame

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    3 - If the OP sets the anchor clamp then slowly and methodically strings a couple on the other side, the tensioned string will relax somewhat. When he goes back to re-tension the string that has the anchor clamp, the tension between the tensioner side of the anchor clamp and the side that has relaxed will be uneven.

    When the anchor clamp is released, the string that had relaxed allows the parallel bar to fall, how much depending on how much the string had relaxed. The amount that the string will relax increases with higher reference tensions.
     
    #17

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