[CAUT] pre-stretching new string?

[Daniel Gurnee]

Cy S.

My experience with S&S Ds and Bs, Bs especially indicates a strong 
possibility of pin block expansion and contraction. The longer strings, 
pins farther from the flange will raise more with increase humidity 
indicating to me that a greater expanse of wood will go farther than 
that closer to the flange. Another indication is the greater stability 
of the left string compared with the center and right strings which 
often in a touchup are the only ones requiring attention with a weather 
change.

Dan Gurnee HSU Ret


On Saturday, June 9, 2007, at 07:16 AM, Cy Shuster wrote:

>
> If the pinblock is bedded to the plate flange, I can't see how wood 
> expansion could allow any pins to move closer to the flange.
>  
> Don, it seems that your reply was about the bridge, but my question 
> was about the pinblock's response to humidity.
>  
> --Cy--
>
> ----- Original Message -----
> From: Paul T Williams
> To: Cy Shuster ; College and University Technicians
> Sent: Friday, June 08, 2007 8:26 AM
> Subject: Re: [CAUT] pre-stretching new string?
>
>
> Cy,
> Wouldn't a sponge-like swelling also cause the closer pin to move 
> closer to the hitch pin? or stay close to the same since it would move 
> up and out from center of bridge core...
>
> Paul
>
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