tension reading w/ racquettune

Discussion in 'Stringing Techniques / Stringing Machines' started by Charleyk24, Feb 9, 2013.

  1. Charleyk24

    Charleyk24 New User

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    --------------------------------------------------------------------------------
    Hello tw freinds
    First. sorry about my bad english.

    In my case
    initial restring tension reading w/ racquettune was used to good like 1-2 lbs differently from reference tension.
    That was good& ok w/me

    Now (i mean about 3month& 20 restring job poly& syn) Initial restring tension w/ racquettune is going UP (not down)5-10 lbs from reference tension

    So I suspected my machine( gamma progression 2 els) and digital scale( JSCALE-ULTRASPORT-50) first.
    Check the digital scale w/weight (of course check the weight w/ another commercial electronic scale) then calibrated my machine.
    Nothing wrong with that

    Next my stringing job?
    Same as last year
    Usually 1 pc job w/atw except hybrid job
    Nothing good but nothing bad I think

    I set up RT what RT want to do to me

    My conclusion??
    I don't now what's wrong but something wrong........

    Thank you for reading this
     
    #1
  2. SwankPeRFection

    SwankPeRFection Hall of Fame

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    Are you using your own measured string factor on the string you're using or are you going with predefined ones? If you're not using your own string factor, then that could account for the variance. Also, it's possible that your stringing technique (you're not faster) is causing the stringbed to string tighter, which would account for the stiffer reading. Taking less time between pulling tension and clamping and then moving on and pulling tension quicker will also cause a stiffer stringbed than what you're actually pulling at.
     
    #2
  3. gmatheis

    gmatheis Hall of Fame

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    Exact same string setup as before? Same guage?
     
    #3
  4. Irvin

    Irvin G.O.A.T.

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    Could be you clamps are slipping. Could be the bases are not adjusted properly and have too much play. I would clean and adjust and see what happens.
     
    #4
  5. Charleyk24

    Charleyk24 New User

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    Hi SwankPeRFection
    thank you for replying my question!
    1,i use string facter ( my rpm blast 17g : choose string material polyester, and string diameter 1.25mm -string facter 1.72

    2 my actual stringing time takes about 20-25 min(start main -finish final knot)
    thank you
     
    #5
  6. Charleyk24

    Charleyk24 New User

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    yes. for my racquets(puredrive lite 2sets)

    1pc atw,

    i am using rpm blast 17g, prohurricane tour 17g

    thank you
     
    #6
  7. Irvin

    Irvin G.O.A.T.

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    It doesn't really matter if you use the custom string setting or not as long as you always use the same.
     
    #7
  8. Charleyk24

    Charleyk24 New User

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    Hi Irvin
    I had clamp slipping issue
    I fixed it, clean machine every month.
    Drawback? I didn't
    measure it but around 3mm

    Thank you Irvin
     
    #8
  9. Irvin

    Irvin G.O.A.T.

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    3mm does not seem like too much. Just make sure you adjust the bases to keep them at about the same all the time. As they get sloppy you have more drawback.
     
    #9
  10. Charleyk24

    Charleyk24 New User

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    i miss something it could be matter w/my problem!!!
    i did calibrate my stringer 10 days ago and i did it again today

    tensioner lbs----digital scale before calibration--digital scale after calibration
    30-----------------31.70----------------------------------30.30
    35-----------------36.10----------------------------------35.50
    40-----------------42-------------------------------------40.50
    45-----------------46.30----------------------------------45.50
    50-----------------51.20----------------------------------50.20
    55-----------------56--------------------------------------55.50
    60-----------------61--------------------------------------60.20
    65-----------------64--------------------------------------64.80
    70-----------------69--------------------------------------70.70
    75-----------------74.50-----------------------------------76
    80-----------------80---------------------------------------80.60
    85-----------------86.20-----------------------------------85.10
    89-----------------88.60-----------------------------------89.20

    one more thing
    my digital scale read 0.2-0.6lbs higher than actual weight
     
    #10

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