Hammer Strike Angle

[william ballard]

On Apr 3, 2006, at 2:42 PM, Farrell wrote:
> Do/did some manufacturers bore their upright hammers such that the  
> hammers overstrike the strings?

Terry, are you sure that they're actually over-striking. IOW, might  
they be hitting the strings square (remember the the plate and thus  
string plane are already leaning forward to move the center of  
gravity frontwards), and what you're looking at is an extreme rake  
in  the boring. If that's so, the rake come from moving the bore  
point back n the hammer molding. Doing this moves the butt's c'o'g  
back from directly in top of the butt center, helping it's return to  
the rest rail.

> Does insalling new hammers so that they strike the strings at 90  
> degrees improve things?

You've got a perfect chance to check this out with the old hammers.  
That way, the tone of a test hammer will be "cut from the same cloth"  
as a control hammer. Grand or vertical, the best delivery of force is  
a normal strike.

Mr. Bill

"Can you check out this middle C?. It "whangs' - (or twangs?)
     Thanks so much, Ginger"
     ...........Service Request
+++++++++++++++++++++



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