action ratios

[David Love]

Not enough dip, no aftertouch, insufficient jack escapement.  Lower ratios
will require more dip or less blow.

David Love


----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: "Pianotech" <pianotech@ptg.org>
Sent: November 01, 2002 12:50 AM
Subject: Re: action ratios


I was more curious about the connection you make between "bobbling" and the
Ratio. What exactly was causing the bobbling in your determination ?

RicB

David Love wrote:

> I'm not sure how much you want me to go into it, the point was that the
> relatively low ratio demanded regulation specs that were beyond what the
> pianist would accept--I would have had to increase the dip substantially.
> David Love wrote:
>
> >The piano I mentioned above which had a ratio of 5.3 and high zone SW's
was
> regulated at 10mm dip/44 mm blow.
> >It was bobbling all over the place.  The dip required to solve the
problem
> was
> not acceptable to the pianist.
>
> Would you mind going into this in a little more detail ?
>



--
Richard Brekne
RPT, N.P.T.F.
UiB, Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html


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