<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML style="FONT-SIZE: medium; FONT-FAMILY: AGaramond Bold"><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#d8d0c8> <DIV><FONT size=2>I believe some pianos (S&S?) have a slightly convex keyframe and slightly convex keybed, exactly to ensure solid contact all along when the keyblocks are screwed down.</FONT></DIV> <DIV><FONT size=2></FONT> </DIV> <DIV><FONT size=2>--Cy--</FONT></DIV> <DIV><FONT size=2><STRONG>shuster</STRONG>piano.com</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">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=joegarrett@earthlink.net href="mailto:joegarrett@earthlink.net">Joseph Garrett</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> Wednesday, April 05, 2006 4:07 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Bedding the key frame</DIV> <DIV><BR></DIV> <P> <DIV>Quentin asked: "Yes there is a little knocking on the ends, but I cannot get a good frame regulation on the balance rail (with the knocking action) AND no knocking at all on the front rail. <DIV>Nevertheless, when I screw the 2 cheek blocks, there is no knocking at all.</DIV> <DIV> </DIV> <DIV>Then, what should I do?"</DIV></DIV></BLOCKQUOTE></BODY></HTML>