CONTEST: Guess the tension loss (with MORE PRIZE!!!)

Discussion in 'Badminton Stringing Techniques & Tools' started by kwun, Mar 21, 2012.

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  1. kwun

    kwun Administrator

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    that's the motivation.

    and i think you mean, "if pulling the second cross, and leaving out the first, results in tension loss on the first cross" ?
     
    #21 kwun, Mar 21, 2012
  2. yan.v

    yan.v Regular Member

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    According to some of the studies and forum posts I've seen, pulling a string with a 15 degrees angle (which usually happens when you can rotate your turn table 360 degrees) causes a 5-7% tension loss due to the friction with the grommet.

    The friction with main strings is also another ~5% tension loss. Considering the friction is happening on 2 strings at the same time for the double pull, there would be about 15% tension loss total. That is just what I've read and mostly applies to tennis so take it with a grain of salt.

    Also, I thought this would be a good place to discuss the resultant tension after a pull, but if you don't agree, please delete this post :p
     
    #22 yan.v, Mar 21, 2012
    Last edited: Mar 21, 2012
  3. Mark A

    Mark A Regular Member

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    Thinking on, both crosses would probably suffer - they both experience twice the usual friction on a single pull. I've avoided double-pulling for this very reason, so it'd be nice to see if I'm right (and, if so, by how much:D).
     
    #23 Mark A, Mar 21, 2012
  4. kwun

    kwun Administrator

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    feel free to discuss!
     
    #24 kwun, Mar 21, 2012
  5. kingzzz

    kingzzz Regular Member

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    1)29
    2)27,
     
    #25 kingzzz, Mar 21, 2012
  6. awekuda

    awekuda Regular Member

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    1) 29.3
    2) 27.8
     
    #26 awekuda, Mar 21, 2012
  7. AlanY

    AlanY Regular Member

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    its probably too late now.
    Wouldn't be better if you release the video with the readings blanked out then we might get a better chance to get it right
     
    #27 AlanY, Mar 22, 2012
  8. Alex82

    Alex82 Regular Member

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    1) 27.3
    2) 23.4
     
    #28 Alex82, Mar 22, 2012
  9. Maklike Tier

    Maklike Tier Regular Member

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    Sorry, I don't get out of bed for more than $10,000
     
    #29 Maklike Tier, Mar 22, 2012
  10. GUENNIIIII

    GUENNIIIII Regular Member

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    1. 29.8
    2. 27.8
     
    #30 GUENNIIIII, Mar 22, 2012
  11. blableblibloblu

    blableblibloblu Regular Member

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    less*543210
     
    #31 blableblibloblu, Mar 22, 2012
  12. winstonchan

    winstonchan Regular Member

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    i have not done stringing for a decade (or more).

    a wild guess would be 1. 28.5, 2. 27.5
     
    #32 winstonchan, Mar 22, 2012
  13. maa2003

    maa2003 Regular Member

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    fast speed, no pre-stretch, and 1 minute after beep of Wise2086, constant-pull :
    1. 30 lbs
    2. 15 lbs
     
    #33 maa2003, Mar 23, 2012
  14. kwun

    kwun Administrator

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    added the Info video!!!

    the contest is now significantly more exciting because now we have 2 sponsors who are sponsoring some exciting prizes!!!!

    - Badminton-Nation.com, the exclusive Li-Ning USA distributor is giving the winner a Performance Li-Ning shirt.

    - MyBadmintonStore.com is giving the winner a pack of the brand new NBG99 string!

    and this is in addition to the Ashaway Zymax string that AshawayUSA.com gave me.

    Maybe I should enter the contest too. those prizes looks very attractive.
     
    #34 kwun, Mar 23, 2012
  15. yan.v

    yan.v Regular Member

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    I love the technique!

    Was your video supposed to have sound ? I couldn't hear anything and thought my speakers were broken :p

    Oh and thanks to the sponsors!!
     
    #35 yan.v, Mar 23, 2012
    Last edited: Mar 23, 2012
  16. kwun

    kwun Administrator

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    no sound. i was babbling on talking about the method and i later realized if i had done it coherently i will have to include the whole length of the video and that will end up 5 mins and bore everyone to death. so i made it short and took out the sound!

    yes. Awesome to have sponsors! both www.badminton-nation.com and www.mybadmintonstore.com owners are also regular BC readers as well!
     
    #36 kwun, Mar 23, 2012
  17. Cloud7z

    Cloud7z Regular Member

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    29.5lbs
    28lbs
     
    #37 Cloud7z, Mar 23, 2012
  18. twang338

    twang338 Regular Member

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    Attached Files:

    #38 twang338, Mar 23, 2012
  19. Mark A

    Mark A Regular Member

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    GAAAH - free NBG99 for teh winnar? You've made me CARE, kwun!
     
    #39 Mark A, Mar 23, 2012
  20. yan.v

    yan.v Regular Member

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    Since I still have one try left and thought that the tension loss from the knot and b8 grommet were going to be calculated (somehow o_O), I'll update my values.

    1) 28.2 lbs (.2 for added flavour :p)
    2) 25 lbs
     
    #40 yan.v, Mar 23, 2012
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