<html xmlns:v="urn:schemas-microsoft-com:vml" = xmlns:o="urn:schemas-microsoft-com:office:office" = xmlns:w="urn:schemas-microsoft-com:office:word" = xmlns:st1="urn:schemas-microsoft-com:office:smarttags" = xmlns="http://www.w3.org/TR/REC-html40"> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <meta name=ProgId content=Word.Document> <meta name=Generator content="Microsoft Word 10"> <meta name=Originator content="Microsoft Word 10"> <link rel=File-List href="cid:filelist.xml@01C54E4C.4D6B3600"> <o:SmartTagType = namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType = namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/>  <style>  </style>  </head> <body lang=EN-US link=blue vlink=purple = style='tab-interval:.5in'> <div class=Section1> Hard to imagine that that could = make any difference.<o:p></o:p> <o:p> </o:p> <div> David Love davidlovepianos@comcast.net <o:p></o:p> </div> -----Original = Message----- From: = pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of John Fortiner Sent: Sunday, May 01, = 2005 12:45 PM To: 'Brad Smith'; = 'Pianotech' Subject: RE: Enlarging = existing bridge pin holes <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> -----Original Message----- From: Brad Smith [mailto:staff@smithpiano.com] Sent: Sunday, May 01, 2005 12:17 PM To: Pianotech Subject: RE: Enlarging existing bridge pin = holes<o:p></o:p> <o:p> </o:p> <o:p> </o:p> Also, what are the consequences of using big = fat #10 pins...or using<o:p></o:p> slightly smaller #9 pins. Will it affect side = bearing, or relationships with<o:p></o:p> dampers?<o:p></o:p> Perhaps not enough to worry = about.<o:p></o:p> *What about the slight difference in the over all weight of the bridge.  = Smaller pins would reduce the mass of the soundboard/bridge structure that the = wires must activate??  Just a random = thought.<o:p></o:p> <o:p> </o:p></p= > John Fortiner<o:p></o:p> <st1:place = st="on">Billings, <st1:State = st="on">MT.</st1:State></s= t1:place><o:p></o:p> <o:p> </o:p> I'm not sure how critical the type of bit is, obviously it's part of the<o:p></o:p> puzzle.<o:p></o:p> Most important is the lightweight shaft that = allows you to drill and follow,<o:p></o:p> without influencing, the angle of the = original holes.<o:p></o:p> For that reason, you would want to avoid = completely filling the holes with<o:p></o:p> epoxy.<o:p></o:p> And, making a bridge pattern from acetate or = Mylar is vital, should anything<o:p></o:p> go awry.<o:p></o:p> You might even wish to start a size lower = than your final bit, to<o:p></o:p> re-establish the holes, and then complete the = sizing with the final bit.<o:p></o:p> Maintaining control, and working "intentionally" are most = important.<o:p></o:p> <o:p> </o:p> Nick's class also covers a great way to fix = bunged up notches; or cracks<o:p></o:p> that have distorted the notch termination on = an otherwise good bridge.<o:p></o:p> This stuff, done right makes an old bridge = look as though you've recapped<o:p></o:p> it!<o:p></o:p> <o:p> </o:p> <o:p> </o:p> Best regards,<o:p></o:p> Brad Smith, RPT<o:p></o:p> www.smithpiano.com<o:p></o:p></p= > <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> -----Original = Message-----<o:p></o:p> From: David Love = [mailto:davidlovepianos@comcast.net]<o:p></o:p> Sent: Thursday, April 28, 2005 11:41 = AM<o:p></o:p> To: 'Pianotech'<o:p></o:p> Subject: Enlarging existing bridge pin = holes<o:p></o:p> <o:p> </o:p> <o:p> </o:p> I am repining a bridge and because the = bichords are a strange in between<o:p></o:p> size (about 9 1/2), I need to enlarge the = holes to accommodate a #10<o:p></o:p> pin.  I have not had much luck doing = this in the past in a clean way and<o:p></o:p> am wondering how others approach this.  = My thought is to reinforce the<o:p></o:p> bridge cap with a clear coat of epoxy first = before drilling it out,<o:p></o:p> reaming out any excess that might create = large globs inside the hole<o:p></o:p> before it sets up.  Any thoughts on = this?  And what is the best way to<o:p></o:p> approach redrilling an existing hole: high = speed, low speed, by hand?<o:p></o:p> <o:p> </o:p> David Love<o:p></o:p> davidlovepianos@comcast.net<o:p></o:p><= /font> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> ______________________________________________= _<o:p></o:p> pianotech list info: https://www.moypiano.com/resources/#archives<o:p></o:p></p= > <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> </div> </body> </html>