This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Comment interspersed below: Terry Farrell I usually apply the epoxy while I am installing the new pins. After = pulling pins and renotching the bridge, I mix up a small amount of epoxy = in a cup. Using piece of piano wire, I swab the holes with the epoxy, = dip the end of the pin in and insert it into the hole. The epoxy oozes = around so periodically I take an acid brush, dip it lightly into lacquer = thinner and brush the overflow down into the notches and across the = bridge top. =20 SNIP David Love No claims of expertice on my end, but this is exactly the way I have = done it also. Seems to work well. > For starters, I be careful not to put more epoxy in the pin hole than = > you were absolutely certain was going to make a gap-filling film=20 > between the (say) .075 pin and the .076 hole. This brings up an interesting question. Best to redrill and go up a pin = size? Or to use the original pin size. I have gone original size, and = there was a fair bit of slop in the fit between hole and pin (hammering = pin in was not needed - pin just slid right it - maybe one tap to seat). = I wonder what the ramifications of that will be in the long run? > We all have the mental picture of underground fissures in the bridge=20 > root, running from hole to hole, and an accompanying picture of a=20 > hungry-man sized dose of epoxy being pumped through the system of=20 > cracks as the pin is being driven into the hole. But in most=20 > instances, do we know just how extensive that maze of subterranean=20 > cracks is, and how much epoxy (above and beyond the amount necessary=20 > for the gap filling film) we'll need in the pin holes? I have had a few that while hammering one bridge pin in, you get a = gusher of epoxy squirting out another pin hole. These were on kinda = junky pianos. I suspect that if this were a fine piano, one might want = to think twice about the overall integrity of the bridge if you observed = this happening.=20 >=20 > Bill Ballard RPT > NH Chapter, P.T.G. >=20 > "Filing the bridgepins sure puts a sparkle on the restringing, but is=20 > best done before the plate is re-installed" > ...........recent shop journal entry :-) Excellent! ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/79/cc/87/73/attachment.htm ---------------------- multipart/alternative attachment--
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