Hammer Tail Cove and SW

[Farrell]

Hi Sarah,

I use 0.105" lead wire to add weight to hammers. I drill a hole in the
hammer moulding and tap/swedge in the lead. To loose weight, I use the
Spurlock hammer tapering jig - http://www.spurlocktools.com/id35.htm .

Are you aware of David Stanwood's hammer weight curves? I would recommend
you consider doing your SWs to an appropriate Stanwood SW curve. He has done
a lot of work to come up with these.

Terry Farrell

----- Original Message ----- 
From: "Sarah Fox" <sarah@graphic-fusion.com>
To: "Pianotech" <pianotech@ptg.org>
Sent: Saturday, August 21, 2004 6:18 PM
Subject: Re: Hammer Tail Cove and SW


> Hi Ric, Jon, whomever,
>
> A related question for you, sort of...
>
> I'm about to start evening out the SW on a new set of hammers  (nice ones!
> :-)  I've measured out all the starting strike weights on a centigram
> balance and entered them in an excel spreadsheet.  The curve is pretty
> linear.  I only need to adjust out the jags.  I did a linear regression
> analysis to find the best fit to the line.  I need to remove as much as
.45g
> and add as much as .60g (mostly just above the bass/tenor break).  What's
> the best way to do this?
>
> I presume the jags are mostly from slight irregularities in hammer width,
so
> is the best way to remove weight to thin the hammer slightly on the sides?
>
> Is the best way to add weight to add something like epoxy or lead?  If
lead
> is the way to go, is it feasible to press small bits of solid-core solder
> into a drilled hole in the molding?
>
> Any advice would be greatly appreciated.
>
> Thanks!
>
> Peace,
> Sarah
>
>
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