BG65 tension loss is higher than we think

Discussion in 'Badminton String' started by kwun, Feb 14, 2014.

  1. kwun

    kwun Administrator

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    Gezz... who's the stringer? ;)
     
  2. visor

    visor Regular Member

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    Lol......... :)
     
  3. sh_shashi1

    sh_shashi1 Regular Member

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    In my view your comment are not harsh . what you said is completely valid . how ever for me it is an observation because at least after all how we really judge our equipment is by playing and not technically by measuring . but all said please take this comment with a pinch of salt . ;)
     
  4. KShuttle

    KShuttle Regular Member

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    I don't want to derail the thread or anything but what are the synthetic strings made of anyway?And are they really multi-fillament or just one solid wire?
    I image anything but the highest-end materials would elongate pretty much.
    Dyneema (or spectra in the US) has incredibly low stretch (I think like 3% before breaking) and is incredibly strong,A 1 milimeter thick string can hold up to 210 KG!

    Sorry again,asking so much questions,my forum searches were unsuccessful unfortunately.
     
  5. craigandy

    craigandy Regular Member

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    Nylon I think.
    The outer part (bg65 anyway) is a Nylon Polymer. The inner core is a nylon multifilament.
     
  6. craigandy

    craigandy Regular Member

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    Ok I just strung a racket with bg65 at 31/33(32) no pre stretch and it came out at 1267hz left it for 4 days untouched, Final reading was 1209hz. So thats 58hz drop.

    Another Racket 27/29(28) bg65 1205hz fresh.

    So [MENTION=1]kwun[/MENTION] I get exactly the same almost 4 lbs loss if you go by Hz in one sense. Only problem is does 59hz = 4lbs now(14.75hz per lb)?

    the 1205hz on the 28lbs dropped to 1111hz after 7days and about 5hrs on it. 94hz drop/14.75 does this mean it has dropped over 6lbs? because it feels way stiffer than 22lbs.

    What does everyone think?
     
  7. visor

    visor Regular Member

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    Something is a little wonky somewhere with your first stringing I'm thinking ... ime, 1 lb is around 30 Hz give or take a few Hz.
     
  8. craigandy

    craigandy Regular Member

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    Interesting you should say. Because I recorder after 24 hours aswell.

    I don't have any answers just can't get my head around it, take a look at this,
    Using your logic
    My 32lbs after only 24hrs rest was 1227hz
    Kwuns 30lbs after 1 day rest 1170hz
    So about 60hz difference would suggest 2lbs difference and nothing wonky about the job.
     

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