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What did I do wrong

Discussion in 'Badminton Stringing Techniques & Tools' started by Dokkie, Jun 5, 2011.

  1. Dokkie

    Dokkie Regular Member

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    Ok so today I broke my first racket during stringing. It has a little hairline-crack I believe at 3 o'clock, now I'd just like to know what did I do wrong? I think I adjusted the shoulder supports too tightly. Machine is a six-point mounting with suspension and load spreaders (throat and shoulders).

    Picture coming up
     
  2. Mark A

    Mark A Regular Member

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    Cracks at 3/9 could be down to either too-tight crosses or incorrectly-placed shoulder supports (which should contact the racket as close as possible to, but outside, the last shared hole at each corner).
     
  3. kwun

    kwun Administrator

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    did it crack during tensioning of main?
     
  4. Dokkie

    Dokkie Regular Member

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    Yes it did, during one of the last pulls on the opposite site from where I pulled.
     
  5. Dokkie

    Dokkie Regular Member

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    I was stringing the mains at 12 KG with BG80 btw just to get the total picture, it's quite odd to me the racket broke since I have strung the same string at the same tension at a VT70

    Picture: [​IMG]
     
  6. silentheart

    silentheart Regular Member

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    1) I can see you do take good care of your racquet by turning the grommets
    2) I think Mark A is right that side supports might have been loose or not supporting as much as it should. May I ask what model machine you have?
     
  7. Dokkie

    Dokkie Regular Member

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    It's called a Markslag 90, but it is a Eagnas model, but a different name.

    [​IMG]
     
  8. kwun

    kwun Administrator

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    can you show us a pic of the racket after it is being mounted on the machine? a top down view will be good. the suspect is the side support not close enough to the center.

    what racket is it? looks like Ti-?? . is it a real or fake?
     
  9. Dokkie

    Dokkie Regular Member

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    Armortec 900T, it is real for sure.
     
  10. jamesd20

    jamesd20 Moderator

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    That must hurt when a racket that costly breaks. Is it yours?
     
  11. Dokkie

    Dokkie Regular Member

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    It is mine, but it has been a loyal soldier for almost 5 years now, so it is somewhat bearable, have so much good memories with this one though :( Luckily have another one left :)

    Pictures mounting position in attachment. Hope quality is ok, just mobile phone pics.
     

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  12. jamesd20

    jamesd20 Moderator

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    Pretty good quality for mobile pics!

    The mounting doesn't look too bad, but I would say the lower supports should be lower (closer to shaft), they look too close together, with the top ones in more or less right position.
     
  13. kwun

    kwun Administrator

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    i see no obvious reason why it would break. the positioning of the supports are fine and these mounting are not the types that would slid during tensioning either.

    the only explanation is maybe there was a an existing weakness at the 3 oclock position from a previous clash or something.

    otherwise, it is rather mysterious to me.
     
  14. Dokkie

    Dokkie Regular Member

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    Could be a weakness from a clash, have been using it for 4,5 years rather intense at relatively high tensions (12-13 KG). Could just be some bad luck/weakness, jsut wanted to know for sure that it wasn't my fault. Should I move the lower shoulder support near the shaft down?
     
  15. silentheart

    silentheart Regular Member

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    Can you take pictures of the
    1) top of the racquet
    2) top of the racquet from both sides
    How do you turn the grommets? It seen you have done it at lease 2 time already. The reason i am asking is for me, it is hard to do after 1st time because the grommets usually get stuck. so how do you push them out enough to turn 90 deg?
     
  16. jamesd20

    jamesd20 Moderator

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    Kwun thinks it is ok. The first picture it does look ok, the other one (in my eyes) looks like it is a bit high. It may be the angle.

    5 years as a main racket strung at those tensions could explain it. Rackets does have a shelf life after all.
     
  17. kwun

    kwun Administrator

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    yeah. that's high tension. is it a 3U or 4U? AT900T here are all 4U and probably won't survive 4-5 years of high tension.
     
  18. Dokkie

    Dokkie Regular Member

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    It's 3U/G3, Bx-coded :p
     
  19. kwun

    kwun Administrator

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    which brings up an interesting topic for stringers like us. it is a pretty big risk to be stringing for a customer without knowing the history of a racket. the risk is small, but it is a risk for sure.
     
  20. Dokkie

    Dokkie Regular Member

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    Almost all people I string for I know personally, so I pretty much know if they are careful with rackets and at what tensions they play.
     

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