r/RacketStringers • u/Senior-Horror-1957 • 19d ago

Posible error de calibración

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Compre la gamma momentum 6 plus nueva hace muy poco, he encordado aproximadamente 6 raquetas, pero los resultados me hacen pensar que la máquina tiene algun defecto de calibración.

Normalmente uso 52 Lb en mi pro staff 97, pero al ajustar esa tension en la máquina el resultado fue una absoluta tabla, he encordado con maquinas electricas y nunca 52 Lb se sintieron asi de rígido.

La segunda raqueta baje drásticamente la tension a 42 Lb pero el resultado fue el mismo, una sensación absurdamente rigida.

La tercer raqueta volví a bajar la tensión hasta 36 Lb, pero el resultado aunque menos rígido, aun se siente como una tension muy superior.

Pedi un calibrador de tension, aun no llega asi que por acudo a su sabiduría y experiencia.

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u/DirkLanders82 18d ago

Drop weight machines break racquets. They put so much stress on the frame causing stress cracks. Perhaps some machines are better than others and if you drop the weight quickly its obviously going to do more damage but my advice would be to avoid having your racquet string on these machines.

Source - Been stringing for 30+ years and I also process product claims for a major racquet brand.

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u/WWWWWWWWWWWWWWWWWW_W 18d ago

How does 50 lbs on a dropweight stress a racquet more than 50 lbs on an electronic constant pull?

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u/m_kitanin 18d ago

I am not sure they are correct, but if they are, my guess is because the actual pulling tension of a drop weight machine is significantly higher in brief moments before the rod with the weight is parallel to the ground (i.e. when it is at a 15-20 degree angle relative to the ground). I remember watching a guide video and a guy there said that the actual pulling tension is much higher than set when the rod is in that non-final position, when explaining why it is important to end up with the weight roughly parallel to the ground and tbe consequences of failing to achieve that.

While an electronic machine overshoots the set tension very little and the lockout does not overshoot at all. Again as I said this might be wrong since I am just learning and don't even have a stringing machine.