[CAUT] Upright geometry problem (Nordiska)

[Richard Brekne]

I run into this quite frequently, (blow reduced tho as you corrected 
yourself)  The damper spring is well known as a source of this kind of 
thing, but I get the sense that the jack return spring is less so.  It 
can actually do the job on its own really IME.  Sometimes these things 
are really strong... especially on cheap pianos. Its almost like the 
manufacturers arent aware that the thing can be too strong.

Cheers
RicB




    Hi Jim-

    We found that the blow had been increased and the dip increased so
    much in
    an attempt to give aftertouch it wasn¹t getting due to the strong
    damper,
    hammer and jack springs. You just couldn¹t play hard enough to
    overcome the
    spring strength and get the jack to clear.

    Just my 2 cents.

    David
    David C. Brown
    Arizona State University
    School of Music
    Piano Technician
    1-480-965-6760
    david.c.brown.2 at asu.edu