Clamp slippage with kevlar at 86lbs

Discussion in 'Stringing Techniques / Stringing Machines' started by Shroud, Apr 28, 2018.

  1. Shroud

    Shroud G.O.A.T.

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    i forget who but someone asked about slippage and showed how they mark the string to test for slippage. Tried it today and no slippage

    [​IMG]

    Without tension:

    [​IMG]

    Pulling the next main:
    [​IMG]
     
    #1
  2. mmk

    mmk Hall of Fame

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    With kevlar at 86 lbs, I'd be more worried about tendon snappage.
     
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  3. Coolio

    Coolio Professional

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    @Shroud You actually have a problem, why you so extreme?
     
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  4. eelhc

    eelhc Hall of Fame

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    Slippage with Kevlar at 86# is a problem I will never have.
     
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  5. Shroud

    Shroud G.O.A.T.

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    Someone has to be!

    It starts with my handle which is big and adds 40g. Absolute must to protect my elbow. That means i have to add weight i. The hoop so its not 32 pts head light which means the sw gets over 380 pretty easily. Which means high tensions to tame the power. High sw protects the arm...

    High sw= higher tension unless you want to bunt the ball. Where is the fun in that?
     
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  6. chrisingrassia

    chrisingrassia Professional

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    #6
  7. Shroud

    Shroud G.O.A.T.

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    Not when you are impervious to tendon boning...
     
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  8. 10shoe

    10shoe Rookie

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    @Shroud

    I was the poster who asked you to check your clamps. Judging by the captions you've placed under the photos I would say that you misunderstood the procedure. In the photo below, I have placed a single mark on the string between the clamp teeth closest to the tension head. The mark is placed on the string WHILE the tension head is pulling. When the tension head is released, you watch the mark for string creep back into the clamp. I don't believe this is what you did. I appreciate that you took the time to check and take photos and post your results but I don't think this was conclusive.

    [​IMG]
     
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  9. Shroud

    Shroud G.O.A.T.

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    1st photo was while it was under tension. 2nd was after tension was released. 3rd was while tensioning the next main. If you look closely between #1 and #2 you can see the draw back amount when the tension was released

    How is it different? Because I got happy with the markers??
     
    #9
  10. 10shoe

    10shoe Rookie

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    No, if you did it as you describe, it isn't different. I went by your captions which were: "Without tension" and "Pulling the next main". Did not realize the first picture was "With tension". The clamps are holding well.

    I think I actually own one of these clamps. It looks like a Gamma. It's a long story but basically I was disappointed to find they used inserts in the teeth. I do pretty serious volume and I didn't think they would hold up. The teeth on the one I bought look like this:

    [​IMG]
     
    #10
  11. Shroud

    Shroud G.O.A.T.

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    Sorry I could have made it clearer. Yeah mine look like those. @Irvin can comment as he had them and does more volume than I do!

    They certainly dont seem like they are made to be removed or at least its not intuitive
     
    #11
  12. cluckcluck

    cluckcluck Hall of Fame

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    why not use a starting clamp?
     
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  13. 10shoe

    10shoe Rookie

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    The long story:

    The clamp pictured in post #10 was what I received a couple years ago when I ordered what was pictured in the catalog of their retail outlet (now defunct). What I thought I was ordering was one of these:
    [​IMG]

    These clamps are kind of crude in design but what I liked about the one that I had (pictured above) was that you can clamp below the level of the teeth and get uninterrupted contact between metal and string. This is useful when stringing slippery strings at high tension and you are installing the mains.

    I had purchased a Gamma starting clamp sometime in the distant past and it had inserts which both fell out almost immediately. So, when I saw Gamma's new swivel clamp had inserts I threw it in a drawer at home where it has seen light use on my home machine when I have brought home squash and racquetball racquets for late night stringing.

    One of my Toyo Zouki clamps broke and I am too busy to locate a machine shop willing to fix it. I ordered a couple Alpha Ghost 2 clamps today. I am hoping they will fill the void.
     
    Last edited: Apr 30, 2018
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  14. am1899

    am1899 Professional

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    ^^ Dude. (Haven’t we been down this road before)? :p


    [​IMG]
     
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  15. 10shoe

    10shoe Rookie

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    What's a little crack on a thumb? In 3 days I'll be able to grab string with it again.
     
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  16. Chadillac

    Chadillac Guest

    Put a dollar bill in the clamp, has a weird type of paper that sucks up string oil
     
    #16
  17. Irvin

    Irvin G.O.A.T.

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    If Ashaway Kevlar slips in your clamp you have a big problem no matter what the tension is. Diamond dusted clamps against Ashaway braided Kevlar, if it slips check to make sure you engaged the clamp.

    EDIT: The string will break before it slips.
     
    #17
  18. Shroud

    Shroud G.O.A.T.

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    Yeah I certainly never had it slip with properly adjusted clamps
     
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