[pianotech] Hammer Technique: was Q & A Roundtable

[Joe Goss]

Hi David,
In my thinking that happens automatically when tuning hammer is at 12 to 3 
and one is using a 20% head. Less at 12 and more at 3
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "David Love" <davidlovepianos at comcast.net>
To: <pianotech at ptg.org>
Sent: Wednesday, February 02, 2011 8:22 AM
Subject: Re: [pianotech] Hammer Technique: was Q & A Roundtable


>I suppose I could have worded it more precisely but it's not at all 
>nonsense
> and it's easy to demonstrate if you're open to it.  You can flex the pin
> forward while you are turning it such that the pitch actually drops in 
> spite
> of the fact that you are turning it in the sharp direction.  Then when you
> release the flex which, in this case, is pushing the pitch to the flat 
> side
> more than the twisting of the pin is pushing it to the sharp side, the 
> pitch
> will climb to your target.   The tension in the first segment never rises
> above the target tension.  A controlled flexing like this in which the
> flexing offsets the twisting means that the higher amount of tension often
> left in that first section (which tends to cause stability problems with 
> the
> pitch moving flat) never occurs.  That's my point but feel free to parse 
> it
> any way that gets you off.
>
> David Love
> www.davidlovepianos.com
>
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On 
> Behalf
> Of Ron Nossaman
> Sent: Wednesday, February 02, 2011 6:59 AM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Hammer Technique: was Q & A Roundtable
>
> On 2/2/2011 2:07 AM, David Love wrote:
>> Overshooting means that you increase the tension in the first segment of
> the
>> string (the segment leaving the tuning pin) to the first friction point
>> before the  speaking length moves.
>
> Nonsense. That has nothing whatsoever to do with overshooting. If you're
> going to raise the pitch of the speaking length with the tuning pin,
> you'll increase the tension in the first segment first and most. That's
> not hammer technique. That's kindergarten physics.
>
>
>
>>If you tune with counter pressure applied to the
>> tuning lever that compensates for the twisting of the pin, you can move
> the
>> pin in the block without increasing the tension in that first section, no
>> overshoot.  The risk of exceeding the break point then is minimized.
>
> Absolute nonsense. It's still the higher tension in the first segment
> that pulls the string from the speaking length through the agraffe or 
> capo.
> Ron N
>
>