una nueva vuelta de tuerca, lubricar el cordaje que ha perdido "vida"

[DoBerMaN]

Buenas

que opinais sobre lubricar el cordaje de la raqueta cuando este está ya algo muerto?

por ejemplo, en mi caso, juego con poliester, uno rigido, el blackout, una vez lleva unas horas, aparte de por las muescas, se vuelve más rigido

quizás lubricando las cuerdas, aumentaria la movilidad de estas?


un artículo al respecto:

Enter the Japanese engineer Yoshihiko Kawazoe. In 2004, he decided to test a string lubricant that its inventor, Kenji Okimoto, thought would "revive" old, worn strings. Kawazoe realized that, despite much research, scientists had only a shadowy idea of what happens during the 4 or 5 milli­seconds when the ball is on the strings, simply because they couldn't see it. But with an ultra-high-speed, 10,000-frame-per-second camera, Kawazoe solved the mystery of strings and spin.

In capturing 40 to 50 frames of each ball-string impact, he saw that lubricated strings slid with the ball and snapped back as it left. As they snapped back into line, they transferred more energy to the ball in the tangential (parallel to the racket face) direction and gave it more spin—which was easily calculated from the super-slow-motion rotation of the ball as it left the strings. In technical studies published in 2006 and 2007, International Tennis Federation researchers reported that the same movement that Kawazoe observed with lubricated strings occurs with copoly as well.

Copoly strings—slippery and stiff—generate more spin not because of more friction, but because of less. "The old argument was that the better the grip between the strings and the ball, the more spin you would get. But that's not true," said Rod Cross, an Australian physicist and co-author of Technical Tennis.

Last April, Cross and his co-author, Crawford Lindsey, published their study showing that copoly strings generate 20 percent more spin than nylon strings, and 11 percent more than natural gut. Such differences help explain how a contemporary powerhouse like Rafael Nadal can hit with twice as much spin as Andre Agassi did.


Looking back, Lindsey and Kawazoe told me they are befuddled by how long people took to realize that polyester strings generated extra spin through sideways sliding and snapback. They should have known this, because 30 years ago, a radical innovation—"spaghetti strings"—used the same mechanism to generate more spin than even the best copolys.

"In spaghetti strings, the [horizontal and vertical] strings weren't woven," said Cross. "And because they weren't woven, there was lots of freedom of movement within the string plane, and that produced almost a factor-of-two increase in the amount of spin. And that's why the ITF banned them."

[DoBerMaN]

pensaba que lo habia pegado:

http://www.theatlantic.com/magazine/archive/2011/01/the-new-physics-of-tennis/308339/

aunque sea barato el cordaje, y me las encuerde yo mismo, no siempre tiene uno el tiempo o las ganas para encordar, o lo mismo le puede valer a aquel que le salga más caro encordar

si alguien lo ha hecho alguna vez, si puede, que comente

[RuF]

A mí también me parece interesante.
De hecho, no se decía que Nadal le ponía silicona a sus cuerdas para que agarren más efecto?

Doberman, yo probé con silicona, pero la verdad es que no adhiere a la cuerda y mancha las bolas, se notan siempre húmedas al tacto y no se seca. Por lo tanto supongo que será otro material.  :preg:

[DoBerMaN]

mas referencias al respecto

http://www.10sballs.com/2012/06/25/players-are-concerned-about-spraying-racquet-strings/

http://tt.tennis-warehouse.com/index.php?threads/lubricate-strings-more-spins.389100/


algunas pruebas con según que lubricantes:

http://tt.tennis-warehouse.com/index.php?threads/the-best-string-lubricant-is.461625/

otros post, aqui hablando sobre el uso de spray de silicona por parte de los pros

http://tt.tennis-warehouse.com/index.php?threads/pros-using-silcone-spray-on-their-strings.429279/

[cañonazo]

Algo que podría servir es el aceite de vaselina, es barato (yo tengo un bote marca carrefour con el que lubrico clavijeros), lubrica genial y es muy penetrante, además seguro que cuida mejor la cuerda porque no es abrasivo. Quizá poniendo un poco en la zona de impacto se facilite el spin, si me da la vena lo pruebo, pronto encordaré mis aero y antes igual le pongo un poco al cordaje viejo a ver qué tal.

[henri leconte]

Pero de qué estamos hablando, Antonio ??  :shocked:  :grin:










PERDONA LA BROMA TIO   

[DoBerMaN]

ajajajajaj

releyendolo despues del post coña, lo de la "zona de impacto" me mató xD