[pianotech] New string broke twice

Noah Frere noahfrere at gmail.com
Tue Jul 12 15:03:54 MDT 2011


That's something I didn't think about. I may have noticed if it were
unusually so though. I expect it to be about the same as other Acrosonic
Spinets.

On Tue, Jul 12, 2011 at 4:54 PM, Joe Goss <imatunr at srvinet.com> wrote:

> **
> Hi,
> Is there an extreme dog leg on that string?
>
> Joe Goss BSMusEd MMusEd RPT
> imatunr at srvinet.com
> www.mothergoosetools.com
>
> ----- Original Message -----
> *From:* Noah Frere <noahfrere at gmail.com>
> *To:* pianotech at ptg.org
> *Sent:* Tuesday, July 12, 2011 2:19 PM
> *Subject:* [pianotech] New string broke twice
>
> 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?
>
> FYI the strings that broke - and yes I mic'd them before installing - were
> .040 core; .118 winding; hitch to winding 5 1/8"; winding length 30 3/4".
> The new string will be the same lengths but .039 core and .116 winding.
>
>
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