Soundboard grain angle

[Richard Brekne]

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Delwin D Fandrich wrote:

>
>
>      ----- Original Message -----
>      From: Erwinspiano@AOL.COM
>      To: pianotech@ptg.org
>      Sent: December 04, 2001 12:48 PM
>      Subject: Re: Soundboard grain angle
>
>              Del
>
>         Just for the record when any of us refer to
>      grain angle in a soundboard could we specify
>      where it is we are measuring that from so all
>      can be clear as to intended meaning
>          I.E. I always measure off the spine.    If
>      your talking 60 degrees off the belly and not
>      the spine that translates into something close
>      to 40 or 45 degrees measures off the spine if
>      I,m thinking straight.
>        Would you mind clarifying
>            Thanks --Dale
>
>  Dale, Off the spine? What do you mean by the 'spine?' I
> measure off the stretcher (which is not always parallel to
> the bellyrail) from the left, or bass, side. That is, my
> 60º is 30º off perpendicular to the stretcher. It may or
> may not be 30º off the bellyrail. Del

Spine referes to the long side of the grand methinks. Never
ran into another way of measuring soundboard angle in the
literature I have run into, but then standard proceedures
and terminology dont seem to have a chance in the piano
world it would seem.


--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway
mailto:rbrekne@broadpark.no


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