[CAUT] Hardness of termination vs string breakage (was Re: restrung D)

[Keith Roberts]

Oh! Wim, if you do tune/work the back scale--not just straighten and
tap--while stringing, my apologies for the wording that looks as if i
assumed you didn't do this. It was a temporary assumption. I think they call
that a postulate before the theory. I'll find out when I finish my
engineering degree.

Keith Roberts


On 4/18/07, Keith Roberts <keithspiano at gmail.com> wrote:
>
> Now this is why I think Wim was having probs with a newlyrestrungD. If you
> don't tune the back scale or make sure the strings render when stringing
> then as Ron just said the string render at random times. Maybe a year or two
> or three later.
>
> On another list about backscale tuning, I remarked that I just try to
> smooth out the sound and tension of the back scale and asked whether it
> would be better to raise the raise the pitch of the backscale or lower it in
> comparison to the front scale. I got no answers. From what Ron says here, I
> think taking the hammer shank and making sure the backscale pulled up to
> tension+ in the stringing process is essential. Then as the wire stretches,
> the backscale won't render through after tunings. Since the rendering does
> this randomly with humidity swings and applying the principle of "going
> halfway there never gets you there" even if you are already halfway there,
> logically it must mean the tuning stability sucks.
>
> Keith Roberts
>
>
>  On 4/17/07, Ron Nossaman <rnossaman at cox.net> wrote:
> >
> >
> > Hi Fred,
> > Consider that if the string can be moved up and down the pin
> > by cap dimensional changes, the friction between string and
> > pin is overcome in small increments to allow it. As the string
> > moves up or down the pin, the differing segment tensions will
> > take advantage of the momentary friction respite, and the
> > string will also render across the bridge somewhat. This
> > happens at odd intervals as long as the cap thickness is
> > changing, which is most of the time. Nothing ever stands still
> > as long as there are changes in temperature and humidity, so
> > nothing ever quite reaches equilibrium.
> >
> > Ron N
> >
>
>
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