Grand hammer tail shape.

[Richard Brekne]

I find that shaping hammers to match the arc of hammer travel works best.
Tapering is also benificial and is helpfull in reducing hammer weight if needed.
I do not like checkering, do not find it necessary in the slightest and
routinely smooth away all signs of checkering. I have seen polished tails check
superbly on many many occasions, tho I tend to leave about a 180 grit finish on
them.

Doug Mahard wrote:

> Hi one and all,
>
> What are the criteria used in determining grand hammer tail taper shape.  Is
> it factors of clearence with neighboring parts and weight reduction?  As
> most of you know, the Korean pianos come through with none of this done,
> just the tail arcing and some very rough ridges for checking purposes that
> always seem to tear up the backchecks prematurely.
>
> Thanks and a good weekend to all.
>
> Doug Mahard

--
Richard Brekne
Associate PTG, N.P.T.F.
Bergen, Norway