Tuning Pin Size

[larudee@pacbell.net]

---------------------- multipart/alternative attachment
Dave,

I seem to get mine about two weeks after everyone else.

Paul

"David M. Porritt" wrote:

>  Paul:
>
> I got my February issue several days ago.  You should have yours
> soon. dave
> *********** REPLY SEPARATOR ***********
>
> On 1/25/02 at 11:37 PM larudee@pacbell.net wrote:
>
>      Erwinspiano@AOL.COM wrote:
>
>     > > The details are in the article, but the disadvantage is
>     > > that the 1/0 pin will be
>     > > less rigid.  This can be a problem in a Steinway type
>     > > design where the distance
>     > > between the point of string tension and the pin block is
>     > > roughly three times
>     > > greater than in an open face design, and where there is
>     > > no plate bushing to
>     > > mitigate the leverage.
>     > >
>     > >   Hi Paul -- I'll read the article but would you mind
>     > > saying this a different way as it's not clear to me. I
>     > > find that using no 1 pins in new blocks is not a problem
>     > > unless fit too tight but what pin isn't. I don't have any
>     > > trouble with no. ones otherwise. I'll read the article,
>     > > really!  I can't deny that no 2 are stiffer but ones
>     > > render nicely when fit well which is why I like them.
>     >
>     >       >>>>>>>>>>Dale Erwin
>
>      Dale,
>
>      Part of the problem, even when you read the article, is that
>      it's in two installments, and the February issue isn't out
>      yet.  The answer to your question will probably lead to more
>      questions, all of which are addressed fully in the article.
>      The simplest answer, however, is that in a Steinway the
>      string height above the pin block - not the plate - is
>      roughly three times greater than it is in an open face
>      design like a Bechstein.  Since the string tension is
>      roughly the same, the leverage exerted by the string on the
>      pin is three times as great.  If the pin sizes are the same
>      in both cases, pin flex will produce roughly three times as
>      much string movement in the Steinway as in the Bechstein -
>      i.e. it is less stable.  Going to a larger, stiffer pin size
>      will partly compensate for that.
>
>      Chances are that at this point we get into "but what
>      about...," in which case I get to rewrite the whole article
>      on line.  I would just as soon wait for the February
>      Journal.  There will probably still be plenty to debate, but
>      at least not the stuff I've already covered in the article.
>
>      Best regards,
>
>      Paul
>
> _____________________________
> David M. Porritt
> dporritt@mail.smu.edu
> Meadows School of the Arts
> Southern Methodist University
> Dallas, TX 75275
> _____________________________
>

---------------------- multipart/alternative attachment
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/21/50/69/af/attachment.htm

---------------------- multipart/alternative attachment--