<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD><TITLE>Re: rear string lengths</TITLE> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <STYLE type=text/css>BLOCKQUOTE { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } DL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } UL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } OL { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } LI { PADDING-BOTTOM: 0px; PADDING-TOP: 0px } </STYLE> <META content="MSHTML 6.00.2600.0" name=GENERATOR></HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN class=612231919-06122002>Is not the use of an apron (suspended bass = bridge) and short back scale allow for maximum string length on shorter grand's.</SPAN>?</FONT></FONT></FONT></DIV> <DIV><FONT face=Arial><FONT size=2><FONT color=#0000ff></FONT></FONT></FONT> </DIV> <DIV><FONT face=Arial><FONT size=2><FONT color=#0000ff><SPAN class=612231919-06122002>Then, may the bearing be apparently higher ? = (because the actual pressure of the bridge on the soundboard is in fact far away = from the pins ?</SPAN></FONT></FONT></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002></SPAN></FONT> </DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN = class=612231919-06122002>The little Gaveau I have in mind here is having a lot of bearing apparently = on the bass bridge, but there is an apron, and it does not seem to lock the system.</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002></SPAN></FONT> </DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002>regards.</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002></SPAN></FONT> </DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN = class=612231919-06122002>Isaac OLEG</SPAN></FONT></DIV> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002> </DIV> <DIV><BR></DIV></SPAN></FONT> <DIV><FONT face=Arial color=#0000ff size=2><SPAN class=612231919-06122002></SPAN></FONT> </DIV> <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> Delwin D Fandrich<BR><B>Envoyé :</B> vendredi 6 = décembre 2002 01:38<BR><B>À :</B> Pianotech<BR><B>Objet :</B> Re: rear = string lengths<BR><BR></FONT></DIV> <DIV><FONT face="Comic Sans MS" color=#000080></FONT> </DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000080 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=davidlovepianos@earthlink.net href="mailto:davidlovepianos@earthlink.net">David Love</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> December 05, 2002 4:24 = PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: rear string = lengths</DIV> <DIV><BR></DIV> <DIV><FONT size=2>Should the backscale length be taken into = consideration when setting down bearing?  Since a shorter backscale doesn't = allow as much freedom of movement for the bridge, would you, then, consider = reducing the bearing on a piano, or section, that had a shorter backscale, = and vice versa?  Is there some formula or general rule of thumb for this.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>David Love</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3></FONT> </DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3>Yes. Conventional wisdom tells us to set bearing very = light in the bass. This is why. With the extremely short backscales commonly = found in the low bass of <EM>modern</EM> pianos setting any kind of string deflection is going to tie the bridge/soundboard assembly down = completely. </FONT></DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3></FONT> </DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3><IMG alt="" hspace=0 = src="cid:612231919@06122002-1f04" align=baseline border=0></FONT></DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3></FONT> </DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3>With a backscale as shown above normal string bearing -- = in this case about 0.5º string deflection -- is not only possible, but necessary.</FONT></DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 size=3></FONT> </DIV> <DIV style="FONT: 10pt arial"><FONT face="Comic Sans MS" = color=#000080 = size=3>Del</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></= HTML>