As I have shared in my earlier post on racquet repairs, most
cracks occur at 10 o’clock or 2 o’clock on the racquet frame. I begin to realise
why this problem is so predominant in racquets which is strung with two knots. The
problem with two knots tie off is that it will create stress imbalance on the
racquet frame geometry. Often the side with a tie off knot will suffer tension loss
compared to the opposite side still holding original tension as it transition
from vertical to horizontal weave.
The result of this will form a lob sided frame shape with
the potential stress build up just waiting for the right time to fail
structurally. Often it gives way around the two areas mentioned on the frame’s
shoulders, perhaps its weakest link.
The recommended method is to do a four knots tie off with two
tie offs on the main strings. Start from the middle and work your way out symmetrically
with tie off at the left side and then at the right side to balance the stress
symmetrically. Then, another two tie offs for the cross strings starting from
the bottom all the way up ending with a tie off at the top.
I shared this with Aaron and now we will be changing our
stringing method from two knots to four knots.
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| Aaron stringing his fav racquet |
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| Look at the intensity and concentration |
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| Surprisingly he does it with minimal supervision |
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| The boss continues his work again |
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| Finally its done! |
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