low drop screw symptom

[Bob Hull]

Hello Antares,
The new hammer boring dimension results in a shank
that is exactly parallel to the string.  HB distance -
hammershank center to keybed = string ht. 

Bob

--- antares <antares@euronet.nl> wrote:
> Hello Bob,
> 
> It would seem that your hammer boring is not right.
> 
> EAR
> 
> 
> 
> On 19-mrt-05, at 16:22, Bob Hull wrote:
> 
> > Hello List,
> >
> > On a rebuild for a small but good quality grand I
> am
> > replacing all of the action parts and having some
> > doubts about the action configuration.   As I
> > regulate samples the drop screw has to be lowered
> > almost as far as it will go.
> >
> > Another relationship that appears to be off is the
> > jack to hammershank relationship which is not
> > perpendicular but rather it is more toward the B-
> side
> > (Bob Hoff terminology).  How can I change this?
> >
> > The new (Renner) wippen with the closest match to
> the
> > old wippen is the one with the added heel.  The
> old
> > jack tender/toe seemed to interface better with
> the
> > tilted let off rail than the new wippen does.  The
> new
> > one gives a harder feeling ledge before let off.
> > I don't like the way that feels.
> >
> > I  realize that more information may be necessary
> and
> > I can supply it if asked.  One other thing I will
> add
> > is that I had to lower the plate/string plane as
> much
> > as I dared to get some downbearing.  I am
> adjusting
> > the hammer bore because of this.
> >
> > So to restate my question:  What is indicated
> about an
> > action geometry when drop screws must be lowered
> so
> > far in order to attain suitable drop?
> > I would appreciate your comments.
> >
> > Bob Hull
> >
> >
> >
> >
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> >
> friendly greetings
> from
> André Oorebeek
> 
> www.concertpianoservice.nl
> 
> "Where music is no harm can be"
> 
> 
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> 


		
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