Clamp not going up to cross, “biting”, help!

SinneGOAT

Professional
Hi, first time posting in stringing. I have been stringing for about a month now, and have gotten really good at stringing. I am typically stringing about once every 2 weeks on the racquets I use, and I was getting bugged by a certain thing. When I clamp the string on a cross, I can’t go all the way up to clamp so when I clamp and tighten it leaves these bite marks on the cross. It also curves the cross, but that’s normal and I straighten it out after. Is the bite marks normal? Does it affect the string performance? I try to clamp as close to the grommet and I normally don’t hit right next to the grommet so I haven’t hit one of the bite marks but does anybody else have that happen?
 

shadow01

Rookie
Your clamp might be too tight which is causing the bite mark. What type of string are you using? Not getting all the way right next to every grommet is also ok. If I notice bite marks on the string I’m clamping - I try to loosen the clamp a little to the point where the string holds and won’t slip. But I’m still getting better at that and err on the side of tighter than looser.
 

g4driver

Hall of Fame
When I clamp the string on a cross, I can’t go all the way up to clamp so when I clamp and tighten it leaves these bite marks on the cross.

It also curves the cross, but that’s normal and I straighten it out after.

Is the bite marks normal? Does it affect the string performance? I try to clamp as close to the grommet and I normally don’t hit right next to the grommet so I haven’t hit one of the bite marks but does anybody else have that happen?
First of all, you need to straighten the cross after you pull tension on that cross but before clamping the. What you are actually doing is not fully pulling tension on those crosses.

The marks on the strings you is calling ghosting. Most likely you are stringing a multi. Polys don't ghost. You can test the end of each string before you string the frame to make sure : 1) the clamp is tight enough to hold tension and 2) minimize ghosting

Ghosting won't hurt the strings but you can minimize it by properly setting the clamps when you change any string ..if you use a different string gauge or a different string in hybrid, check the end of the strings in both clamps before stringing the crosses.
 

Irvin

Talk Tennis Guru
Bite marks could be in the form of string indentations or it could be ghosting on the string. Assuming you’re talking about indentations it means your string is being crushed by the clamp or being held too tight. I have 2 different machines my Babolat clamps clamp the string at the same depth every time. My Gamma machine does not. On the Babolat there are stops that keep the string from sinking too deep into the clamps when stringing the mains. So mains and crosses are clamped at the same depth. On my Gamma machine the main string can go much deeper into the clamp and actually past the gripper section of the clamps. If you have your clamps closing too much on the string on the mains and there are no ‘bites’ you may have to open the clamps for the crosses.
 

SinneGOAT

Professional
Your clamp might be too tight which is causing the bite mark. What type of string are you using? Not getting all the way right next to every grommet is also ok. If I notice bite marks on the string I’m clamping - I try to loosen the clamp a little to the point where the string holds and won’t slip. But I’m still getting better at that and err on the side of tighter than looser.
I generally notice it actually on poly, I strung a frame with Wilson sensation and didn’t really notice it. When stringing the crosses like tour bite it had the indentations. I will try stringing a frame and getting the clamp a little looser, I tend to string with 16g and 17/16l.
 
Bite Mark on Cross:
Main and cross string are of same gauge or the cross is thicker? You may need to adjust the clamp teeth opening by adjusting the clamp knob (if you have fixed clamp)
There will be some mark on the string regardless.

Curving Cross:
To fix the curve in the cross, put the next string closer to the last strung cross. Also manually straighten when you pull the tension.
 

struggle

Legend
Poly goes dead so quick that a few "bite marks" don't much matter. Nonetheless, best to minimize.

No need to be flat spotting your string. that's for tires.
 
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