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    Default How to measure shaft flexibility?

    Title more or less says what I want to know. Is there a way to measure racquet shafts flexibility accurately?

    I tried to measure with a scale that is designed for scaling fish. I did it by mounting the scale to wall and then I put the racquet to the scale hook and bended it equally. I measured 6 different racquets but the result was the same with every racquet. difference between racquet were only 1 or 2 grams. I think there should be more difference between flexible and stiff shaft than just 1 gram

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    Static force deflection, or force required to achieve a certain amount of deflection? Although i don't get what would be the use of knowing the shaft's absolute flexibility. For the same absolute flexibility a head heavy racquet would appear more flexible than a head light racquet due to inertia.

    I'm just happy to know i can bend a stiff shaft to a banana shape during a smash and flex my extra stiff racquet enough to warrent using it...

  3. #3
    Regular Member chris-ccc's Avatar
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    Arrow To measure Badminton Racket shaft flexibility

    Quote Originally Posted by Chief View Post

    Title more or less says what I want to know. Is there a way to measure racquet shafts flexibility accurately?

    .
    Chief... You might find useful info from this cooler's thread: click here .


    .

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    Just add a few kilos onto the middle of the shaft and measure the number of degrees it bends. The more degrees it is the more flexible the shaft is.

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    Default This is the way

    This is used on all Apacs badminton rackets

    Name:  flex.jpg
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    Apacs put the 20kg on the middle while SOTX put the 20kg on the T-joint.

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    Moderator drifit's Avatar
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    Quote Originally Posted by phandrew View Post
    Apacs put the 20kg on the middle while SOTX put the 20kg on the T-joint.
    support at t-joint and cone = shaft flex test
    support at top head and cone = racket flex test (flex including frame)
    can i say like that?

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    Quote Originally Posted by drifit View Post
    support at t-joint and cone = shaft flex test
    support at top head and cone = racket flex test (flex including frame)
    can i say like that?
    I think it is before the frame so it doesn't include the flex of the frame. Obviously there will be more flex for SOTX because the disstance from the handle is about double the length of Apacs testing for flex.

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    Default

    Thank you all. your answers were very usefull

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