Correct strike point

[Richard Brekne]

AAAPianoServic@AOL.COM wrote:

> I understand there is a mathematical formula to figure the correct strike
> point on a string.  Can someone please let me know what it is?

You probably would end up throwing the math to the wind anyways. Hamiltons are
pretty common so you might just pop into your local freindly neighborhood Baldwin
dealer and take some sample end measurements. On the top (last eight or so notes)
you are best off establishing the strike point with what gives you the strongest
and most full sound. Make as straight a line as you can with those and line it
all up with your measured samples. This is probably the easiest way to get a
useable job done.

Make sure that the hammers dont overcenter or undercenter at string contact..
Perhaps a call to Baldwin may help you, but a rule of thumbs is a 90 degree to
shank angle. I wouldnt trust that rule to far tho... Also make sure of your bore
length or you will run into regulating problems. Might be best to start with a
new set of hammers ordered from Baldwin for that particular piano.

>
>
> I am attempting to correct a very bad hammer replacement job on the top 1/3
> of a Baldwin Hamilton console action.  I am working under the assumption that
> the strike line should be straight and the hammer angle on the shank should
> be the same.  I don't want to duplicate the last horrid job so I need to
> start from scratch.
>
> I am replacing the shanks because the height was uneven and I had to redrill
> the hammers because the angles were way out of proportion.
>
> Thanks in advance,
>
> Dave Streit
> Associate

--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway