<!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 6.00.2800.1106" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV><FONT color=#008000>A man after my epoxy reinforced heart! Please = explain the items below:</FONT></DIV> <DIV> <SPAN id=__#Ath#SignaturePos__></SPAN> </DIV> <DIV>----- Original Message ----- <DIV>From: "Bill Ballard" <<A href="mailto:yardbird@vermontel.net">yardbird@vermontel.net</A>></DI= V> <DIV>To: <<A = href="mailto:pianotech@ptg.org">pianotech@ptg.org</A>></DIV> <DIV>Sent: Saturday, March 29, 2003 12:03 AM</DIV> <DIV>Subject: Epoxy Reinforcing of Action Parts</DIV></DIV> <DIV><BR></DIV> <DIV>> Dear List,<BR>> <BR>> i'm working on a 1906 Krakauer = 5'10" grand, restringing with original <BR>> board and block, new shanks = and hammers, and lots of <BR>> refurbish-whatevering in the action. New = shanks were a must because <BR>> the wood was fracturing right at the = bushings (must be reed maple, or <BR>> a let-off rail problem. But I stayed with the = original reps.<BR>> <BR>> It turns out all action parts or what = looks like American Beech, <BR>> which after nearly 100 years is quite brittle. = (That's why the <BR>> fractured shanks.) The reps did better, although the = week spot is the <BR>> joint between the jack fly and tender.</DIV> <DIV> </DIV> <DIV><FONT color=#008000>What is the "jack fly"? I imagine the = "tender" is the foot part?</FONT></DIV> <DIV> </DIV> <DIV>> I fond out quickly that I <BR>> wasn't going to be able to = cradle the jacks the usual was. </DIV> <DIV> </DIV> <DIV><FONT color=#008000>Please explain "cradle the jacks" - I am not = familiar with this term.</FONT></DIV> <DIV> </DIV> <DIV>> The back <BR>> of the jacks shear off through the CP hole. = </DIV> <DIV> </DIV> <DIV><FONT color=#008000>Can you clarify this at all - can't quite picture?</FONT></DIV> <DIV> </DIV> <DIV>> Bending the pin and <BR>> rotating it to vertical isn't = going to work. (The bent pin puts a <BR>> gouging stress on the bushing, and = shows no sign of ever loosening to <BR>> proper friction. Also the orientation = of the pin appears not to be <BR>> stable.)</DIV> <DIV> </DIV> <DIV><FONT color=#008000>Again, please explain/clarify. Why are = you bending pins? What pin - center pin? Rotating to vertical? I don't have a clue = as to what you are describing.</FONT><BR> <BR>> But there are = jacks which will need cradle, and no matter how low I <BR>> set the psi on the = air nailer, the jacks fracture when I tap them to <BR>> cradle them. = </DIV> <DIV> </DIV> <DIV><FONT color=#008000>Air nailer? To "cradle" a jack? What is this = process? Please describe in detail.</FONT></DIV> <DIV> </DIV> <DIV>> So my next best guess is to impregnate the beech at the = <BR>> jack's elbow. That should render the jacks strong enough to take a = <BR>> cradling tap.<BR></DIV> <DIV><FONT color=#008000>You can put epoxy between wooden parts. You = can add epoxy to the exterior of parts. You can "impregnate" a material with = thin epoxy if it is quite porous. Beech is pretty darn dense stuff. You will not be = able to "impregnate" beech with epoxy.</FONT></DIV> <DIV><FONT color=#008000></FONT> </DIV> <DIV><FONT color=#008000>I'm very curious about the questions above. I = look forward to your descriptions.</FONT></DIV> <DIV><FONT color=#008000></FONT> </DIV> <DIV><FONT color=#008000>Terry Farrell</FONT></DIV> <DIV> <BR>> Does anybody know how to do this? It's going to be a = great piano. <BR>> I've promised to get it back to the  church for Easter.<BR>> <BR>> Bill Ballard RPT<BR>> NH Chapter, = P.T.G.<BR>> <BR>> "Lady, this piano is what it is, I am what I am, and you are = what you are"<BR>>      ...........From a recurring nightmare.<BR>> +++++++++++++++++++++<BR>> _______________________________________________<BR>> pianotech list = info: <A href="https://www.moypiano.com/resources/#archives">http://www.ptg.org= /mailman/listinfo/pianotech</A></DIV></BODY></HTML>