Unfornately, the manufactuers have no set standard which is confusing. For example, one of is when an Ashway rep was showing the local shop shop dealer their 0.66mm string. The local store I go to, took a look at the string and said that's not 0.66mm. The rep then said the "core" of the string is. He then replied that does not make sense because the other 0.66mm strings like Yonex and Gosen are thinner than that. Using thie "core" measurement, the dealer could then say, oh I carry a 0.63 string (core) which is really a 0.66 string! I definately agree that the standard forum of thickeness measurement should be when it comes out of the package.
i think it should be when strung at like 23 or 22 lbs. this seems to make sense for yonex at least, because it is in the middle of their recomended range.
itsn't it the same with racketsweights? karakals rackets weigh an amazing 75grams..without a grip... ashaway rackets reach 76grams...without the handle and grip... I have some sotx which were weighed after they were strung etc etc...
I had an sl-70 and its meant to be the lightest in the world at 70grams,but when I weighed mine it was 92grams, with everything on it, Which was the same my at900t 4U with everything on it. Deceptive marketing
Agree; that's why I did the test prior to tensioning because there could be so many other variables making the test even more inaccurate.
I am not familar with the rackets but they normally do should have a weight ranges such as Yonex so the customer knows what to expect.
The Gosen Pro 66 measurement, like Dinkalot mentioned, may be a wrongly packaged Pro 70. I measured 3 pieces of Pro 66 from different packs (2 white, 1 purple) and 2 Pro 70 (white). My caliper is not as accurate but good enough to see a 0.05mm difference roughly Pro 66 is ~0.65+ Pro 70 is ~0.70+
Forget about using a caliper to measure the thickness of a badminton string. It is just not the right measuring device to use. it is almost impossible to hold the string at right angles to the caliper and its sharp edges will pinch the string's elastic coating. Use a micometer. It doesn't have sharp edges and it has better resolution.
yeah, i agree. and if yonex wants to print the thickness after stringing, then they should indicate at what tension. like 0.66 at 22lbs. that way the printing on the packet will not be considered misleading. and maybe mentioned how much the thickness changes as the tension changes for example, +0.01 for every additional 1lb. hahaha, though that might be so overboard. customers usually dont need that kind of details. not everybody have access to fully calibrated micrometer so a caliper is acceptable. we are not trying to conduct an fully scientific experiment here. right?
different manufacturer, different type/idea specifications include string thickness(gauge), racket's weight, grip's size etc different player, different string tension.... as grandmaster Dink, he will pull the string to the limit or the racket limit, thus, many rackets dont survive up to 300 days of living. lastly, many thanks to panda's effort to provide us the infos.......
not everybody have access to fully calibrated micrometer so a caliper is acceptable. we are not trying to conduct an fully scientific experiment here. right? [/quote] Yes it is a scientific experience
don't you string for some of the other members in your club as well? surely you can measure it from there .... come on panda, put that bamboo shoot down and get to work ...
Or how about tensioning a couple of mains (say 4 rows) at 25lbs, clamp, then measure before releasing them and redoing the racket at your preferred tension? Unless you're worried about damaging your rackets of course. But wait, there's more risk of that happening when the panda is smashing!!!
I believe you mean to say 30 days of living! Panda has killed one ti10 (yellow) in 2 weeks and on his way to killing more! Tough life for a panda who cant control his own strength.
Dink, how did you manage to measure a strung and tensioned string with a caliper? There is not enough room in between strings for the jaws to go in deep enough to take a proper reading. Taking a reading at the tips of the jaws will give a false reading. A micrometer has no problem. Micrometers can be purchased easily and you can buy those that come with calibration tools. They also don't cause an arm and a leg. Both calipers and micrometers need to be calibrated by the owner/user periodically. Calibration on both is easy.