hammer acceleration

[David Love]

I'll try it.  No, the slowness is consistent throughout.  I wouldn't call it
slowness exactly.  It's more a difference in the rate of acceleration.  I'll
have to pay attention to this on future actions and see if I can't quantify
what I am talking about better.

David Love

----- Original Message -----
From: "Newton Hunt" <nhunt@optonline.net>
To: <pianotech@ptg.org>
Sent: August 25, 2001 5:47 AM
Subject: Re: hammer acceleration


> Hi David,
>
> Take a shank, hold the flange firmly in one hand and use a finger from the
other
> hand to push the shank up (allowing to pivot at the pin).  Move your
finger
> further out then further in around the knuckle.  This experiment will
answer
> your question.
>
> DIdn't you mention that this slowness happened on only a few notes?
>
> Regards,
>
> Newton
>
>
> It is a Steinway from the 1980's and its a bit of a mess.  Sharps and
naturals
> have different
> key ratios (oops).  The Renner wippens I put on have a higher profile
which
> forces the
> capstans a bit lower, but it actually put the cap/heel contact more on the
> convergence line
> than it was.  I wonder if a longer knuckle radius would result in a faster
rate
> of acceleration
> through the swing arc.   And if it does, would that contribute to a
feeling of
> less control
> because once the static friction is broken the key would accelerate more
easily,
> i.e., it might
> feel like the key is flying away from you too fast?  Just a thought.