Renner Action Geometry Calc

[Richard Brekne]

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