<!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 6.00.2800.1264" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT size=2></FONT><FONT face=Arial>Hi Ric, sounds like you = are moving along nicely on your project. My understanding is that there are two = trains of thought on this issue. </FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>The first is a perhaps traditional = view that suggests the panel must fit snugly to the edge - I think this is part of = the "circle of sound" thing and reflecting soundwaves or vibrations or = whatever. Like maybe the sound might leak out the edge of the panel? Andre = Bolduc pours fiberglass resin into any gaps between soundboard panel edge = and the inside surface of the outer rim.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>I think some more progressive thinking (IMHO) suggests that all you need to do is have the edge of the = soundboard firmly attached (glued) to the inner rim. If the edge of the soundboard = is immobilized (glued to the inner rim), you have done all that matters.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>If the board is now a little smaller than when = you took it out, your locator marks aren't going to be super useful in trying to = figure out where to position the soundboard. Likely the best method will be to get = the bridges optimally located. If you measured the original speaking = lengths, try a combination of reproducing the original speaking lengths and good = alignment of the speaking and backscale portions of the strings (assuming they = were aligned to begin with - perhaps a big assumption!). If you have good = photographs of the original alignment, you can refer to those. Presumably, the = bridges have not changed dimensions much.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Keep us informed. Photographs?</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Terry Farrell</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>----- Original Message ----- </FONT> <DIV><FONT face=Arial size=2>From: "Richard Brekne" <</FONT><A href="mailto:Richard.Brekne@grieg.uib.no"><FONT face=Arial size=2>Richard.Brekne@grieg.uib.no</FONT></A><FONT face=Arial size=2>></FONT></DIV> <DIV><FONT face=Arial size=2>To: "Newtonburg" <</FONT><A href="mailto:pianotech@ptg.org"><FONT face=Arial size=2>pianotech@ptg.org</FONT></A><FONT face=Arial = size=2>></FONT></DIV> <DIV><FONT face=Arial size=2>Sent: Tuesday, January 27, 2004 9:34 AM</FONT></DIV> <DIV><FONT face=Arial size=2>Subject: Rib = Thinning</FONT></DIV></DIV> <DIV><FONT face=Arial><BR><FONT size=2></FONT></FONT></DIV><FONT = face=Arial size=2>> Hi folks<BR>> <BR>> Finished trimming and sanding = down the ribs for the soundboard of this <BR>> old C.C.Lose square and went to = see how it fit into the <<rim>> of the <BR>> instrument. I = noticed right away it had shrunk down quite a bit.. Of <BR>> course it has a slight = crown to it now, but that isnt going  subtract <BR>> much. Looks to = have shrunk in cross grain about 6-7 mm at its widest (60 <BR>> cm). There = is still enough to get a  decent enough bite on the rim, but <BR>> = it was a tight fit coming out. So the question is... is it advisable to <BR>> = add a little strip on one of the edges so that the cross grain width of = <BR>> this panel fits tight going in dry ? Or is it advisable to leave things = <BR>> as they are.. Centered, each edge has about  5 mm of panel over the = <BR>> edges of  the rim on either side.<BR>> <BR>> Thanks for any advices,<BR>> <BR>> RicB<BR>> _______________________________________________<BR>> pianotech list = info: </FONT><A href="https://www.moypiano.com/resources/#archives"><FONT = face=Arial size=2>https://www.moypiano.com/resources/#archives</FONT></A><BR><FON= T face=Arial size=2>> </FONT></BODY></HTML>