<!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 6.00.2900.2523" name=GENERATOR></HEAD> <BODY> <DIV>Andre,</DIV> <DIV>Since many of us will do that measurement "by eye", because = they have not yet got around to making the little card with a 72 degree angle, how = much tolerance do you feel there may be? 72 degrees give or take what? I'd = wager that a 75 degree angle would work = ...</DIV> <DIV> <DIV>| |   | | |   | = |   | | |   | |   | | |   | |   | | |   | |   | | |   | |   | | |   | |  </DIV> <DIV>Jason Kanter . piano tuning regulation repair</DIV> <DIV><A href="mailto:jkanter@rollingball.com">jkanter@rollingball.com</A> . = cell 425 830 1561</DIV> <DIV>serving the eastside and the san = juans</DIV></DIV> <BLOCKQUOTE> <DIV class=OutlookMessageHeader dir=ltr align=left>-----Original Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]On Behalf Of = antares Sent: Wednesday, November 10, 2004 2:12 PM To: Pianotech Subject: Re: About = Checking </DIV> On 10-nov-04, at 21:16, Farrell wrote: <BLOCKQUOTE>"....exactly 72º"   <?fontfamily><?param = Arial>As measured from exactly where to exactly where? The keystick top? The = keybed? The contact face of the = backcheck?<?/fontfamily>   <?fontfamily><?param = Arial><?smaller>Terry = Farrell<?/smaller><?/fontfamily> </BLOCKQUOTE> Terry, <B= R>Aren't back checks always angled towards the back? Yes of course they are, = and the angle should be exactly 72º, measured from the surface of the = key. So, if we angle the back check 'correctly', and if we take care that the = lower end of the hammer tail checks half way the back check = underfelt, and if we check that the wippen rep spring works well but not too well, and = if (when necessary) we roughen up the tails a bit with a roughen up file, it is = then as good as certain that the hammer checks in a healthy way in the back check. And you know what? This always works. André Oorebeek <BLOCKQUOTE><?fontfamily><?param Arial><?x-tad-bigger>----- Original = Message -----<?/x-tad-bigger><?/fontfamily> <?fontfamily><?param = Arial><?x-tad-bigger><?/x-tad-bigger><?x-tad-bigger>From:<?/x-tad-bigg= er><?x-tad-bigger> <?/x-tad-bigger><?color><?param = 0000,0000,EEEE><?x-tad-bigger>antares<?/x-tad-bigger><?/color><?x-tad-big= ger> <?/x-tad-bigger><?/fontfamily> <?fontfamily><?param = Arial><?x-tad-bigger>To:<?/x-tad-bigger><?/fontfamily><?fontfamily><?= param Arial><?x-tad-bigger> <?/x-tad-bigger><?color><?param = 0000,0000,EEEE><?x-tad-bigger>pmc033@earthlink.net<?/x-tad-bigger><?/colo= r><?x-tad-bigger> ; <?/x-tad-bigger><?color><?param = 0000,0000,EEEE><?x-tad-bigger>Pianotech<?/x-tad-bigger><?/color><?x-tad-b= igger> <?/x-tad-bigger><?/fontfamily> <?fontfamily><?param = Arial><?x-tad-bigger>Sent:<?/x-tad-bigger><?/fontfamily><?fontfamily>= <?param Arial><?x-tad-bigger> Wednesday, November 10, 2004 1:06 = PM<?/x-tad-bigger><?/fontfamily> <?fontfamily><?param = Arial><?x-tad-bigger>Subject:<?/x-tad-bigger><?/fontfamily><?fontfami= ly><?param Arial><?x-tad-bigger> Re: About Checking<?/x-tad-bigger><?/fontfamily> Hello = William R. Monroe, According to me, it is as Paul outlines : the angle. Basically, you need an angle of exactly 72º. So = first get yourself a small piece of carton and cut it into an angle of = 72º. Put this carton in back of the back checks and check the angle. </BLOCKQUOTE>friendly greetings from André Oorebeek "where Music is, no harm can be" </BLOCKQUOTE></BODY></HTML>