Hammer Ratio

[Marcel Carey]

Richard,
There is no way the ratio is going to change. Your ratio is distance
dependant. No where in your equation is there any mention of weight. I
you were trying to calculate your ratio using a weight formula, then
maybe it would change.

Marcel Carey, Sherbrooke
QC

> -----Original Message-----
> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On
> Behalf Of Richard Brekne
> Sent: 13 janvier, 2003 08:10
> To: Pianotech
> Subject: Re: Hammer Ratio
>
>
> Ah... to be even more correct sost to not have any more confusion...
>
> the "total length of the hammer shank" means .. the
> distance from the shank
> centerpin to the middle of the hammer moulding... straight
> down the shank.
>
>
>
> Richard Brekne wrote:
>
> > Woah.. Ok.. so a few private posts indicate this perhaps is more
> > confusing then I thought. So .... as precisely as I know how to
> > define... :
> >
> > The hammer shank ratio is either : (depending on who you talk to)
> >
> > The total length of the hammer shank divided by the
> length the hammer
> > shank center pin is from the center of the knuckle core.
> Both lengths
> > taken along the shank itself.
> >
> > or
> >
> > The distance of the  center pin to hammer tip divided by
> the distance
> > the center pin to knuckle contact point
> >
> > So again.. with either or both of these definitions.....
> >
> > Givens:
> >
> > An everyday type grand hammershank with hammer glued that
> has a SW of 10
> >
> > grams.
> > A 1 gram peice of lead.
> > A hammer shank ratio of 7:1
> >
> > Questions:
> >
> > -- If the lead is installed just under the tip of core
> does the hammer
> > ratio change ?
> > -- Where would you have to install the lead to insure the
> hammer ratio
> > remains the same.
> >
> > grin..
> >
> > RicB
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
>
> --
> Richard Brekne
> RPT, N.P.T.F.
> UiB, Bergen, Norway
> mailto:rbrekne@broadpark.no
> http://home.broadpark.no/~rbrekne/ricmain.html
>
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
>