Bechstein key height

[David Ilvedson]

Ok, I figured out you were talking about the keyslip!...Sorry...others were mentioning the fallboard...

David I.



----- Original message ---------------------------------------->
From: Breakall, Raymond <rbreakal@richmond.edu>
To: "'pianotech@ptg.org'" <pianotech@ptg.org>
Received: Fri, 19 Jul 2002 13:10:06 -0400
Subject: RE: Bechstein key height

>Tom,

>It's simpler than that - If I have the keys in I have to have a certain
>thickness of back rail cloth so thet the keys fit with the keyslip. If I
>make that right (so that you can't see the bottom of the key), Then even
>with the thinnest front rail punchings, I barely get 10mm (3/8 in)of key
>dip. I don't have room to add paper punchings to make the dip even.

>Ray
>-----Original Message-----
>From: Tom Driscoll [mailto:tomtuner@attbi.com]
>Sent: Friday, July 19, 2002 11:39 AM
>To: pianotech@ptg.org
>Subject: RE: Bechstein key height




>-----Original Message-----
>From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org] On Behalf
>Of Breakall, Raymond
>Sent: Friday, July 19, 2002 11:03 AM
>To: 'pianotech@ptg.org'
>Subject: RE: Bechstein key height

>John,

>Thanks for the reply but the problem is that the keys are too high
>already
>in relation to the key slip. I have the thinnest balance rail punchings
>sold
>by Schaff and their are no glides on the keyframe. Sounds like the other
>thing to do is have the keys too high in relation to the keyslip. Any
>other
>ideas?

>Ray,
>	Start fresh. Sample combinations of backrail cloth, balance rail
>punchings, and frontrail punchings. Fit the keys to the fallboard,
>keyslip and height of front rail pins,and check the relationship to the
>damper levers.
>      At one time the key height -dip relationships worked in this piano
>and I'll bet that someone has messed this up with some incorrect
>thickness's. Treat this from scratch and the piano will tell you the
>correct choices.   Tom Driscoll