[pianotech] new sting broke twice

[Noah Frere]

Noted,

On Tue, Jul 12, 2011 at 8:53 PM, Dean May <deanmay at pianorebuilders.com>wrote:

> Since this comes after epoxying the bridge I would suggest that you also
> take a look at the bridge. Has the apron slipped to make the string length
> longer? Also, look at the front termination point of the string. Is it
> actually resting on the bridge at the front pin, or is there something
> causing it to be lifted off the bridge at that point so that it isn't
> contacting the bridge at all, or perhaps the contact is at the rear pin.
>
> I have had this trouble at C8 on a couple of pianos but never on the bass
> bridge. For whatever reason, probably collapsed crown, the bridge was
> pulled
> away at the front termination.
>
> Dean
>
> Dean W May (812) 235-5272 voice and text
>
> PianoRebuilders.com (888) DEAN-MAY
>
> Terre Haute IN 47802
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On
> Behalf
> Of Joseph Garrett
> Sent: Tuesday, July 12, 2011 8:47 PM
> To: pianotech
> Subject: Re: [pianotech] new sting broke twice
>
> Mr. Frere said: "I epoxied a bridge for an Acrosonic #293752. String #33
> was broken (the
> right string of G#2). I don't remember at this point if I had the broken
> string to measure, or if I ordered based on the left string specs. Ordered
> string from Schaff. It broke above the V-bar while bringing it up to pitch.
> I could feel too much tension before it was even a semitone away. Sure
> enough it snapped before it reached pitch. I spliced it - snapped again.
>
> Schaff was kind enough to replace it at no charge. I figured it was a
> flawed
> string. Again, the same exact feeling and pop. Right at the point the
> string
> begins to coil on the pin. I could feel it coming. Probably should have
> looked more closely before popping it. The string was straight, which tells
> me it wasn't catching on anything. I can't imagine why the epoxied bridge
> cracks should effect it. I have installed dozens of strings, and don't feel
> like I did anything wrong. Could it be a whole batch of string is flawed?
>
> Today I measured the left string, and it did read .001" smaller core
> diameter and .002" smaller copper diameter. The length of the winding
> looked
> good. I didn't think this is significant enough to break a string, but I'm
> not sure. (It is significant enough to give a poor unison though.) I tested
> the strings adjacent, lowering pitch and re-raising to see how tight they
> feel - they felt normal.
>
> I'm thinking of ordering from a different company, being super careful
> while
> replacing, and seeing what happens. If it works normally, I could call
> Schaff and ask for a refund. If they refuse, no big deal. However, if this
> new string breaks even after being *super* careful, then I'm at a loss. I
> will order based on the left string measurements, naturally.
>
> Has this happened to any of you?
>
>
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