# Thread: Cross and Main tension

1. ## Cross and Main tension

Hi,

Sorry to ask but what does main and cross Stringing Tension refers to ?
I've seen MP33 having :
- Main:16-18 lbs(7-8 kg)
- Cross:18-20 lbs(8-9 kg)

Thanks

Hi,

Sorry to ask but what does main and cross Stringing Tension refers to ?
I've seen MP33 having :
- Main:16-18 lbs(7-8 kg)
- Cross:18-20 lbs(8-9 kg)

Thanks

3. - Main:16-18 lbs(7-8 g)
- Cross:18-20 lbs(8-9 g)
Its gram, not kg i think, if kg, it will be super heavy?
the higher the tension, the heaviler it is?

Hi,

Sorry to ask but what does main and cross Stringing Tension refers to ?
I've seen MP33 having :
- Main:16-18 lbs(7-8 kg)
- Cross:18-20 lbs(8-9 kg)

Thanks

4. Originally Posted by malayali
Crystal clear
thanks

Originally Posted by Sintec
- Main:16-18 lbs(7-8 g)
- Cross:18-20 lbs(8-9 g)
Its gram, not kg i think, if kg, it will be super heavy?
the higher the tension, the heaviler it is?

6. ## Question

Sometimes I wonder if the full 10% more tension on the cross is justified when the requested tension is 30 lbs and more. Do other stringers with constant-pull machines notice the following?

The frame warps slightly perpendicular to the axis of the shaft. I do not know how to explain this but imagine your hand is strong enough to apply a torque to the frame and the shaft is the axis of rotation and twist the frame. Width wise, the frame is perfectly fine - the frame is not narrowed in or bulged out.

So far I notice 28 lbs is about the maximum tension a Ti-10 can handle without having its frame warped in such a manner.

7. Originally Posted by malayali
Malayali: do you have a high resolution image of this? If so, please e-mail or link me to it, thanks.

8. Originally Posted by Pete LSD
So far I notice 28 lbs is about the maximum tension a Ti-10 can handle without having its frame warped in such a manner.
I've strung a 2U Ti10 at 26/29 and noticed no problems. Highest I've strung a 3U Ti10 is 25/28 so far, no problems either.

9. Originally Posted by Pete LSD
The frame warps slightly perpendicular to the axis of the shaft. I do not know how to explain this but imagine your hand is strong enough to apply a torque to the frame and the shaft is the axis of rotation and twist the frame. Width wise, the frame is perfectly fine - the frame is not narrowed in or bulged out.
What kind of stringing machine do you use and how many points?

10. Laserfibre drop-weight MS-200 TT, five internal points of support and three clamp downs.

What kind of stringing machine do you use and how many points?

11. Originally Posted by Sintec
- Main:16-18 lbs(7-8 g)
- Cross:18-20 lbs(8-9 g)
Its gram, not kg i think, if kg, it will be super heavy?
the higher the tension, the heaviler it is?
it's kg..tension...

imagine the string. 1 end tied around a ring in the ceiling. on teh other end you knot 10 kg of weight. the tension you fell on the string is the same as when you tension that string inside your racket at 10 kg)

IT DOESN'T mean you have 10 kg of string in you racket....

12. okey dokey......

Malayali: do you have a high resolution image of this? If so, please e-mail or link me to it, thanks.

13. Originally Posted by Pete LSD
Sometimes I wonder if the full 10% more tension on the cross is justified when the requested tension is 30 lbs and more. Do other stringers with constant-pull machines notice the following?

The frame warps slightly perpendicular to the axis of the shaft. I do not know how to explain this but imagine your hand is strong enough to apply a torque to the frame and the shaft is the axis of rotation and twist the frame. Width wise, the frame is perfectly fine - the frame is not narrowed in or bulged out.

So far I notice 28 lbs is about the maximum tension a Ti-10 can handle without having its frame warped in such a manner.
Interesting... I never notice that before. Just a guess and suggestion, did you ever check to see if all your mounting points are level? I would check the table to make sure it is leveled first. Then mount a stringed racquet (light tension) and use the buble level to check every corner of the racquet to see if it is leveled.

14. The design of the MS-200 TT is such that the throat end is elevated with the badminton adaptors attached and the racquet mounted. So, this may explain the warping, but we need stringers with six-point suspension or clamp down constant-pull machines to do testing first.

Originally Posted by silentheart
Interesting... I never notice that before. Just a guess and suggestion, did you ever check to see if all your mounting points are level? I would check the table to make sure it is leveled first. Then mount a stringed racquet (light tension) and use the buble level to check every corner of the racquet to see if it is leveled.

15. Originally Posted by Pete LSD
Sometimes I wonder if the full 10% more tension on the cross is justified when the requested tension is 30 lbs and more. Do other stringers with constant-pull machines notice the following?

The frame warps slightly perpendicular to the axis of the shaft. I do not know how to explain this but imagine your hand is strong enough to apply a torque to the frame and the shaft is the axis of rotation and twist the frame. Width wise, the frame is perfectly fine - the frame is not narrowed in or bulged out.

So far I notice 28 lbs is about the maximum tension a Ti-10 can handle without having its frame warped in such a manner.

It shouldn't happen. Most high end racquets have to pass the torsion twist test at the factory. Maybe a manufacturing defect or maybe the racquet is getting old and getting racquet fatigue! Does the frame stay flat if you place it on a flat surface?

16. Don't know about manufacturing defect. The racquets were brand new 2004 production batches when I got them. Yeah, the frame stays flat, but I do notice a tiny bit of twist. I just don't know. Maybe the human eyes and hands go funny .

Originally Posted by taneepak
It shouldn't happen. Most high end racquets have to pass the torsion twist test at the factory. Maybe a manufacturing defect or maybe the racquet is getting old and getting racquet fatigue! Does the frame stay flat if you place it on a flat surface?

17. i have a little thought, since most modern racquets can take up to 30lbs then why should you worry about the 10% tension rule, correct me if im wrong but, that 10% more on the cross doesn't help much does it?

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