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-   -   Break angles (https://www.acousticguitarforum.com/forums/showthread.php?t=493172)

Otterhound 12-16-2017 04:41 PM

Break angles
 
In order to establish a fixed baseline , I choose the Martin D-18 . This has got to be a familiar platform to use .
At what places do string break angles exist ?

charles Tauber 12-16-2017 04:51 PM

Nut and saddle.

One could argue at the wrapping around the tuning pegs, but itís relevance depends on the topic

LouieAtienza 12-16-2017 05:23 PM

In reference to the saddle, there is what is commonly referred as a break angle, which is the angle of the string length from saddle to hole in relation to the "speaking" string length. But to prevent the saddle from prematurely wearing, the top of the saddle where the string rests usually has an angle shallower to some degree than that of the former - the "ramp" so to speak. This could occur at the nut as well.

printer2 12-16-2017 06:23 PM

I'm in agreement with those two. Not that I am a great authority though.

Otterhound 12-16-2017 07:05 PM

Quote:

Originally Posted by charles Tauber (Post 5571095)
Nut and saddle.

One could argue at the wrapping around the tuning pegs, but itís relevance depends on the topic

Please elaborate .
Thank you .

Rodger Knox 12-16-2017 09:08 PM

I would say at each end of the speaking length of the string, at the deflection over the nut and the deflection over the saddle, measured relative to the at rest position of the speaking length of the string.

Alan Carruth 12-17-2017 02:07 PM

What Roger said.

I did some experiments on this several years ago, and found that you don't need nearly as much break angle as some folks seem to think. The point of the break angle is to 'fix' the end of the string and define it's speaking length. So long as the string doesn't hop off the top of the nut or saddle as it vibrates, or roll sideways, it will 'know' how long it is, and what note to make. All the vibrating force will be transmitted to the guitar, and more break angle won't increase the signal. So far as I can tell, something like 12-15 degrees of break angle should be 'enough'; any more than that is superfluous.


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