Renner Action Geometry Calc

[Farrell]

Hi Richard. Nick Gravagne's web address follows. Fun little program.

Nick Gravagne - http://home.att.net/~nickware/

Terry Farrell
Piano Tuning & Service
Tampa, Florida
mfarrel2@tampabay.rr.com

----- Original Message -----
From: "Richard Brekne" <Richard.Brekne@grieg.uib.no>
To: <pianotech@ptg.org>
Sent: Friday, October 13, 2000 4:25 PM
Subject: Re: Renner Action Geometry Calc


> Hi there Terry, where did you find this action geometry program on the net
??
> would be interested in taking a look at it.
>
> Farrell wrote:
>
> > Hi List. I attended the All-Day Renner Action class in KC. They
presented
> > some action geometry diagnostic calculations that utilized "Key In, Key
Out,
> > Wippen In, Wippen Out, Hammer In, Hammer Out" measurements. I have my
> > spreadsheet with all the formulas, but I cann't find my class notes that
> > have the definitions of exactly where to physically measure for the six
> > parameters. Does anyone have that info?
> >
> > Also, I downloaded Nick Gravagne's action geometry program from the web
> > yesterday. It quite clearly appears to be the exact same formulas that
the
> > Renner approach uses. Am I right? I thick that the knuckle-to-hammer
center
> > measurement may be different though. Nick's program is very user
friendly.
> >
> > Terry Farrell
> > Piano Tuning & Service
> > Tampa, Florida
> > mfarrel2@tampabay.rr.com
>
> --
> Richard Brekne
> RPT, N.P.T.F.
> Bergen, Norway
>
>
>