At 11:06 AM 1/6/2008 -0800, you wrote:
>So if the dog moves up and down the string, won't that eventually
>break the string, in the contact area where it rubs?
Hi Geoffrey,
The string dosn't move in the dog.
Imagine an ordinary bridge, if you lift one end
and let it go string tension will snap it back down
and it will make a noise.
The dog, (the bridge) is balanced just below the point of lifting.
The string pressure on the turning wheel, in combination
with the sticky rosin is enought to tip the balance and
lift the foot of the dog off the face of the instrument,
the tension on the string is increased to the point where
the wheel and sticky rosin can't hold it anymore and it
snaps back down with a little tap. It happens so fast that
it produces a buzz. The tuner in the tail piece is attached
to a piece of thread that is linked to the string and when
turned will increase the pressure of the string on the wheel
amking it more or less sensitive.
If you think is complex to explain try making one!
Regards, Tony
