<HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2715.400" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#d8d0c8> <DIV><FONT face="MS Sans Serif" size=2>I meant to ask one other question.  My recollection is that the ideal angle leaving the capo section up to the counterbearing bar is 17 degrees.  I'm not sure why that number sticks in my head--I may have gotten it from a piece that Ron Overs wrote, or I may be mistaken entirely.   What is the maximum angle in the capo section that you can get without risking breaking strings.  I would assume the materials would make a difference too.  In the capo section where the strings bear against cast iron, I would assume that they would tolerate less of an angle than where the strings where redirected by softer brass agraffes.</FONT></DIV> <DIV> </DIV> <DIV><FONT face="MS Sans Serif" size=2> <DIV>David Love</DIV> <DIV><A href="mailto:davidlovepianos@earthlink.net">davidlovepianos@earthlink.net</A></DIV> <DIV> </DIV></FONT></DIV> <DIV> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid"> <DIV style="FONT: 10pt Arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=pianobuilders@olynet.com href="mailto:pianobuilders@olynet.com">Barbara J. Fandrich</A> </DIV> <DIV style="FONT: 10pt arial"><B>To: </B><A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A>;<A title=davidlovepianos@earthlink.net href="mailto:davidlovepianos@earthlink.net">davidlovepianos@earthlink.net</A></DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> 3/29/2003 5:54:55 PM </DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Knabe counterbearing arrangement</DIV> <DIV><BR></DIV><FONT size=2> <DIV> </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 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> Saturday, March 29, 2003 11:34 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Knabe counterbearing arrangement</DIV> <DIV><BR></DIV> <P><FONT face="MS Sans Serif" size=2> <DIV>I'm restringing an older Knabe (1920) and wondering if I can't improve the counterbearing arrangement to improve tone a bit.  In the topmost treble section (67 - 88) there are two counterbearing bars, one which is quite close to the termination and one which is about an inch or so toward the tuning pins that is normally covered with felt.  In the next section down (47 - 66), the counterbearing bar is normally covered with felt.  This is in a section in which the area leaving the termination point (agraffes in this case) is normally left undamped in any way.  The other part of the problem is that the counterbearing height is not quite sufficient to get the string at 90 degrees to the pin.  My though is to put in brass half-ovals in these sections.  Will I be creating problems for myself?</DIV> <DIV> </DIV></BLOCKQUOTE> <DIV><FONT face="Lucida Sans">We nearly always install brass half-ovals for this purpose. The principle is keep the string segment reasonably short and the string deflection angle high enough to efficiently terminate the speaking length without it being so abrupt as to encourage the strings to break. I wrote an article on this once.</FONT></DIV> <DIV> </DIV> <DIV><FONT face="Lucida Sans">Del</FONT></DIV> <DIV style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"></FONT> </DIV></FONT></BLOCKQUOTE></BODY></HTML>