<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML style="FONT-SIZE: x-small; FONT-FAMILY: MS Sans Serif"><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.5730.11" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><STRONG><FONT face=Arial size=3>It sounds like the hammers are too wide.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial size=3>If everything is lined up properly, then what you will have to do is pare off the offending edges, to allow free travel.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial size=3>I could carve a hammer, take a photograph, and send it to you, if you do not know, what I mean.</FONT></STRONG></DIV> <DIV>John M. Ross<BR>Windsor, Nova Scotia, Canada<BR><A href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A></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">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=davespianotuning@earthlink.net href="mailto:davespianotuning@earthlink.net">Dave McKibben</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, December 16, 2006 11:53 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> upright hammer bore angle</DIV> <DIV><BR></DIV> <P> <DIV>Hello all:</DIV> <DIV> </DIV> <DIV>Could someone explain, or lead to a book that explains how to figure out hammer bore angle on an upright piano.  I have an issue going on with regard to new hammers on an upright but the whole bass section does not work.  They interfere with each other before the hammer gets to the strings.  I suspect it has to do with shaft length, hammer blow distance and other measurements, but as you can see, I just don't know the details.  The problem is.........its always the details that mess ya  up :)</DIV> <DIV> </DIV> <DIV>Thanks much</DIV> <DIV> </DIV> <DIV><A href="mailto:DavesPianotuning@earthlink.net">DavesPianotuning@earthlink.net</A></DIV> <DIV><A href="http://www.home.earthlink.net/~davespianotuning/">http://www.home.earthlink.net/~davespianotuning/</A></DIV> <DIV>858-776-2516</DIV> <DIV> </DIV> <P></P></BLOCKQUOTE></BODY></HTML>