warping tennis rackets

bengilmore01

New User
ive been stringing rackets recently and they have started to warp (change shape and hair line fractures) and im wondering if anyone knows why this could be i was using the gamma x-2 and wondering if thats the reason or if anyone else has that machine and its good. Could it be the type of racket or just me not stinging it correctly.
 

bigserving

Hall of Fame
Graphite racquets do warp and crack over time. More and more modern player's racquets are becoming lighter. Frames continue to get lighter and they have less mass or bulk to maintain their shape over the long run.
 

bengilmore01

New User
Graphite racquets do warp and crack over time. More and more modern player's racquets are becoming lighter. Frames continue to get lighter and they have less mass or bulk to maintain their shape over the long run.
do you think that us causing them to crack or the fact im using a 2 point mounting system for my stringer
 

88fingers

New User
What kind of racquets ?
Change their shape while you're stringing or after ?
One time I didn't clamp down the racket tight enough and it did bend a little during stringing.
I've had numerous wood racquets warp over time. (many years ago)
 

bengilmore01

New User
What kind of racquets ?
Change their shape while you're stringing or after ?
One time I didn't clamp down the racket tight enough and it did bend a little during stringing.
I've had numerous wood racquets warp over time. (many years ago)
i have the babolat pure areo which has cracked and i think its changing shape during the process of stringing. do you think it could be im not using a supportive stringer as the one i have only supports it at the 12oclock and 6 oclock
 

bigserving

Hall of Fame
do you think that us causing them to crack or the fact im using a 2 point mounting system for my stringer
All of the above.........maybe. There is a lot of stress put on the frames during stringing. There is less mass to support the stress. Who really knows for sure.

Maybe string a frame on a machine with more frame support and see if you notice any difference.
 

88fingers

New User
Also the tighter you string the more potential for frame damage during stringing.
Yes a 6 point mounting system keeps the racquet in better shape than a 2 point system.
 

2nd Serve Ace

Hall of Fame
Frames do tend to compress at 12/6 from the normal stringing process. Even Fed and Novak's match frames show this.

The big exception is that very square-shaped frames resist it more than round-shaped hoops. The classic isometric yonex kinda wants to compress at 3/9.
 

SteveI

Legend
The x-2 and Kippermate have less than perfect mounting systems. Both systems need special attention when mounting the frame to limit the warping effect! You can do a search on Talk Tennis. This has been explored about 1,000 times on here since I have been a member of this bbs. I have owned a Kippermate. It is not really the 2 point vs 6 point... It is the quality of the supports and mounting hardware. Measure your frame when unstrung and them after you string..if you are losing length ..then you have a problem.
 

esm

Hall of Fame
I had a x-2 and not had any issues with frame wrapping, including my PA Tour. Just need to make sure the mountings at 12 and 6 are done correctly.
 
I have a Klippermate (though I use a Gamma X-6 now) and it never "warped" a frame. Could you define what you are calling "warped?" is the hoop no longer in a plane? or are the L and W dimensions changed by a few millimetres, and if so, how many? It isn't incredibly odd to have the frame be a millimetre shorter than when unstrung.
 

esgee48

Legend
A change of ± 1 mm in length is normal and well within parameters due to the Human eyeball; even a change of 3 mm is OK if you do differential tensions.
AFAIK, many X-2 and KM users have posted here and this is not a general problem. You just have to be careful mounting the frame. But this is true whether you use 2, 4 or 6 pt mounts. Mess up the mounting and the frame will pay the consequences.
 
1) Graphite frames don't "warp". The change shapes as some have said. If they are getting shorter, make sure you have the racket snug up against your plastic supports on the mounting arm. You'll know if it's getting shorter (even if it doesn't crack) because it will be hard to get the racket off the machine at the end.
2) One old trick if the racket is getting shorter is to string the crosses tighter than the mains. Of course, this is only if the racket is getting shorter. If it's getting longer (which is rarer), then stringing the mains tighter would reduce this. 3) The last thing I can think of is that the tensioner is not pulling the string on an even plane. I saw a guy string on a table top Eagnas once and the string was pulled slightly downward. The mounting system wasn't very good, and it literally pulled the racket down a little to that side.
 
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