New clamps string keeps snapping help!

Does the problem only occur with this string or do you face the same issue with other strings?

That all sounds super weird tbh. I've had the same clamps on my T20 and never had any issues whatsoever with them damaging the strings or setting them up correctly. I figured it was always beneficial to have them set slightly on the tighter side of things. Just avoid slipping at any cost, that's the worst thing you can do to a string.
The only thing to be done was to clean the diamond coated bits every once in a while to remove the string residue that builds up there. I can't see how you even managed to get them in a state in which you'd have to replace the whole clamp in the first place.

So it only happens at the first pull or does it occur later on too? In general, you should avoid clamping an untensioned string and then pulling against that. Try following this starting process instead in which you apply tension to the string before you clamp it:

 

I don't know how yours were looking, but on my clamps it clearly was residue from the string. The diamond dusted surface is eons more robust than the outer coating of the string.

 

With new clamps, I would also suggest to check if diamond dusting does not have some crystals sticking out that can damage the string (especially around the edges of the teeth). If you see the string constantly nicked by the clamp that is very likely the case.

You will have to take the clamps apart (be careful not to loose the springs inside) and feel all the inner surface of the clamp's teeth with your hand to detect the problem. Then use something like a needle file to remove the sharp bits...

 

Set the clamps very tight. Like 0 space in between. But make sure that you can still push down the lever of the clamp all the way. When you close them you will hear the diamond plates bite into each other. There should really be no space at all maybe even some pressure inside. Then test again.
Some strings like to separate the coating very easily so eventually you have to squeeze it to really grip the core.

If this works, find a setting that holds but doesn't hurt the string to much.

Had that problem with LN1 sometime.

Also check the string gripper. Put some cardboard in to help gripping the string.

 

Same question again - does this only happen with Exbolt? Also, if you do the test from the video, make sure to leave at least a 10 cm trails behind the clamp.
And again, I see you are running into the same issue as you do with you starting process. You clamp the untensioned string and the pull against it. I would love to hear if the situation improves with the optimised starting process.

 

That's bits of the string that's been rubbed off not the diamond coating.

Do you have any photos of the clamps? I had a similar problem with my old clamps fluffing up my strings and it turned out that one of outter edges of the fingers on one clamp was ever so slightly raised above the others. I just took a small file to sand it down slightly and it worked. Not saying that is whats happening with yours but might be worth taking a look.

I would suggest you do the test in the video above such that you get just enough clamping force without crushing the string. Also use some rubbing alcohol to clean the clamping surfaces as there could be oil/dirt which allows the string to slide. Finally, make sure you follow the first video above where you pull both strings so there is tension between the fingers of the clamp before applying the actual tension otherwise you're more likely to snap a string.

 

I'm not sure if this correct, but when I'm doing the fix clamp test with more fragile coated strings (AS or LN1) , it tends to leave a mark on the string, so if I do multiple tests on the same part it will eventually snap.

Never really bothered me before because as soon as I string it in a racket it's completely fine. I always assumed this was because of the angle the string was maybe pulled at and there's racket to act as a straightening buffer.

I'm not getting any major concerns in terms of premature string breakages, but my tensions tend to be lower than the ops. I am doing 28lbs AS for one club member so I would've thought if something was wrong it would show up there.

Sent from my MI 8 using Tapatalk

 

If fray was visible outside of clamp, string was definitely slipping. Either clamp needs to be tightened even more or it doesn't have enough holding power. But that's normal for the first pull since there's no opposite force to counter the first pull. What you can do is using flying or starting clamp right behind the fixed clamp to add more holding power. I sometimes encounters similar problem with thin strings and high tension (29-30lbs) but I can tell it right away because the Wise head does not stop moving/adjusting. In that case, release tension immediately before damage is done.

 

i like many videos of badminton central, but this video is nonsens! Never, never do something like this. No matter if you have a machine for 8000 or 1000 dollar.
This is not what the clamps are made fore. If you string rackets you will never have this force on a clamp! If you start stringing there is more force with the first string as during the stringing process. So EVERY professional tennis stringer uses a starting clamp behind the clamp to secure this. I´m not professional in badminton stringing but i think it is the same there.

If you do it like that you will damage you clamp, espacially if the clamp is maybe not adjusted tight enough at one test. If the string slips through the diamond coating will be damaged and your clamp is not holding the string as it should. I don´t understand how sombody do this dump test.
If you want to test a clamp mount a racket string 2 or 3 strings and then fix the clamp and test it. This is the real usage of the clamp. Again no matter if you have a 8000 Dollar machine and the best clamps on the world, NEVER NEVER test a clamp like you can see on this video.

 

I think, the problem I experienced, that in order to hold 35 lbs of direct tension the clamp needs to be tightened way more than it is safe for the badminton string. Strength needed just to hold the string after it was tensioned is much lower.

After starting mains with the starting clamp, I tension three strings in one direction and only then go the other way. That way slipping at the clamp when pulling first mains is not a problem any more.

 

I would think that in fact the string never pulls back with actual continuous 35 lbs power unlike the tensioner.

I would argue even more - whatever you do there no way you can have actual 35lbs in the final tension of the string, even if you are able to hold it 100% with the clamp? Would you disagree with that??