<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2800.1555" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hi Matthew,</FONT></DIV> <DIV><FONT face=Arial size=2>In the manufacturing process it is easy to put the upright hammer and shank into the butt assembly and adjust slightly where the hammer is in relation to the desired strike point. At the Yamaha factory they used a call that held a section of hammers spaces and angled. The worker only needed to dip the shank end into a trough of glue and place them as a section in the hammer butt holes.</FONT></DIV> <DIV><FONT face=Arial size=2>Onky slight tweeking was needed to align the hammers to the strings.</FONT></DIV> <DIV><FONT face=Arial size=2>VERY FAST</FONT></DIV> <DIV>Joe Goss RPT<BR>Mother Goose Tools<BR><A href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</A><BR><A href="http://www.mothergoosetools.com">www.mothergoosetools.com</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=toddpianoworks@att.net href="mailto:toddpianoworks@att.net">Matthew Todd</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 09, 2008 4:15 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Hammer Boring</DIV> <DIV><BR></DIV> <DIV>I have become known as the man with many questions, so here is my next question.</DIV> <DIV> </DIV> <DIV>Why are grand hammerheads bored all the way through, but not verticals.  I do not know if every grand is, or every vertical is not, but I was just curious.</DIV> <DIV> </DIV> <DIV> </DIV> <DIV>Matthew</DIV></BLOCKQUOTE></BODY></HTML>