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<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>I
noticed that a checking of the centers heights and position on many =
action
stacks, but particularly Steinway, will show that there are
disprcrepancies.</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>Correcting them with little papering , made in the cross =
direction of the
usual one, allow for a smoothing of these, I felt it immediately and it =
can be
measured in the DW UW relationship also.</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>Gluing
himself the new rollers when changing shanks (with they shanks yet on =
the rail
and the centers checked) seem to take care of a lot of these
differences.</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>Rollers may be aligned with a rule - gluing time 30 min
approx..</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>I've
heard of some using a gig for that job, a picture would be appreciated
.</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>Thanks</FONT></SPAN></DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=439280506-14052003><FONT face=Arial color=#0000ff =
size=2>Best
regards.</FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT size=2>Isaac OLEG<BR><BR>Entretien et réparation de
pianos.<BR><BR>PianoTech<BR>17 rue de Choisy<BR>94400 VITRY sur
SEINE<BR>FRANCE<BR>tel : 033 01 47 18 06 98<BR>fax : 033 01 47 18 06 =
90<BR>cell:
06 60 42 58 77 </FONT></P>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px =
solid; MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT =
face=Tahoma
size=2>-----Message d'origine-----<BR><B>De :</B>
pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]<B>De la =
part
de</B> Bradley M. Snook<BR><B>Envoyé :</B> mercredi 14 mai 2003 =
07:28<BR><B>À :</B> Pianotech<BR><B>Objet :</B> Action =
Geometry
Consistency<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>When I do concert level regulation, I =
try and get
key dip, aftertouch, letoff, and blow distance as even as possible (in =
that
order). As a general rule, I try to maintain evenness in aftertouch =
and key
dip, which forces me to distribute the majority of the inaccuracies =
between
the blow distance and the letoff. Every once in a while I come across =
a note
where something in the action geometry is obviously wrong (e.g. to get =
everything else correct, the blow distance would need to be in excess =
of 1/8"
higher/lower than the rest of the hammer line).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>What do I do to fix this =
problem?</FONT></DIV>
<DIV><BR>Bradley M. Snook<BR>Graduate Student in Piano Technology
(M.Mus)<BR>Rice University, Shepherd School of
Music</DIV></BLOCKQUOTE></BODY></HTML>