Action Geometry

[Jon Page]

Diane,
I wouldn't worry too much about the difference in hammer tail length.
They may have been too long in the beginning. More important is their function.

Things to look for are: Height of tail above backcheck with the hammer held in
the 'drop' position, ideally it should be 2mm higher than the b/c. Make 
sure the b/c
is not too high and hits the hammer shoulder on rebound.

Regards,

Jon Page

At 11:31 PM 06/06/2000 -0700, you wrote:

>Jim,
>
>Thanks for your post, you said;
>
>
>  Well just make sure that the "heavy" the customer complained about is the
>"heavy" you are trying to solve. :-)
>
>So true!  I've run into that before.  However, this customer played until 
>she was a teenager and had entered numerous competitions.  She had always 
>hated the action and now she wants her 7 year old daughter to start 
>lessons.  It seems that if we make it more like a standard action that her 
>daughter might encounter again (ie., when she lives with her father during 
>the school year), and make it a lighter action, the little girl might have 
>it somewhat easier.
>
><<" Another issue is that the new
>hammertails are 3/16" shorter than the originals.">>
>  Why?
>
>Because the originals are not available sizes and Wally said he thought I 
>might be able to make them work by installing new backchecks with longer wires.
>
>We're not sure what the best choices for touch weight, weight resistance 
>and friction resistance are?
>
>Funny thing happened in the middle of hours of weighing off the action, 
>the phone rang and the prospective customer asked "Do you tune pianos, and 
>what is the wait?"
>How to answer him?  We had been trying to determine the weight all day!
>
>Diane
>
>
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Jon Page,   piano technician
Harwich Port, Cape Cod, Mass.
mailto:jonpage@mediaone.net
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