<table cellspacing="0" cellpadding="0" border="0"><tr><td valign="top" style="font: inherit;"><div>Terry:<br /> How kind of you to protect your friend from embarrassment by posing the question FOR him! (Or her.)<br /> Now, perhaps, you could do us ALL a kindness by setting your superlative mind on the task of devising a simple bridge-drilling jig for the small shop? ( To hopefully preclude such calamities, and ensure uniformity.) <br /> I'm too busy for developing such, at the moment. But, for starters, imagine a hefty Dremel-tool with a drill chuck, in a plunge-routing setup mounted on a heavy and padded base that slides along on the soundboard...<br /> If you can devise such a tool and market it at an attractive price, I suspect it would be a "Big Seller"!<br /><br />Thumpe</div></td></tr></table> <div id="_origMsg_"> <div style="font-family:arial, helvetica, sans-serif:font-size:10pt"> <br /> <div style="font-family:times new roman, new york, times, serif;font-size:12pt"> <font size="2" face="Tahoma"> <hr size="1"> <b> <span style="font-weight:bold;">From:</span> </b> Terry Farrell <mfarrel2@tampabay.rr.com>; <br> <b> <span style="font-weight:bold:">To:</span> </b> <pianotech@ptg.org>; <br> <b> <span style="font-weight:bold:">Subject:</span> </b> Re: [pianotech] Broken Drill Bit in Bridge <br> <b> <span style="font-weight:bold;">Sent:</span> </b> Sun, Aug 12, 2012 6:02:34 PM <br> </font> <br> <table cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td valign="top" style="font:inherit;">Ahem....... you mean my "friend" - right!?<div><br></div><div>Terry Farrell</div><div><br><div><div>On Aug 12, 2012, at 10:49 AM, Dale Erwin wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><font color="navy" size="2" face="Comic Sans MS, sans-serif"><font size="3"><font color="#000080" face="Comic Sans MS, sans-serif"> Hi Nick</font></font> <div><font size="3"><font color="#000080" face="Comic Sans MS, sans-serif">   As the founding </font><font color="#000080" face="Comic Sans MS, sans-serif">member</font><font color="#000080" face="Comic Sans MS, sans-serif"> and yes, still </font></font><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">president </span><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">of "piano rebuilders anonymous" recovery group, for t</span><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">hose who make mistakes but...don't like to admit it. Yeah, you...</span><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;"> I'd like to welcome you and Terry as new </span><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">members</span><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">.</span></div> <div><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;">Dues are cheap and confession is good for the soul</span></div> <div><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;"> </span></div> <div><font color="#000080" face="Comic Sans MS, sans-serif" size="3">  Good repair Nick, but 1/2 inch plug?  For what its worth a 3/8th mortising bit cuts a wonderful maple plug making the repair just a bit more.....delicate. But hey...whatever works</font></div> <div><span style="color:rgb(0, 0, 128);font-family:sans-serif;font-size:medium;"><br> </span></div> <div><font size="2"><font color="#000080" face="Comic Sans MS, sans-serif">still </font><span style="color:rgb(0, 0, 128);font-family:sans-serif;">president </span><span style="color:rgb(0, 0, 128);font-family:sans-serif;">of "piano rebuilders anonymous"we</span><span style="color:rgb(0, 0, 128);font-family:sans-serif;">Dale</span></font></div> <div><span style="color:rgb(0, 0, 128);font-family:sans-serif;"><font size="2"> </font></span></div> <div><span style="color:rgb(0, 0, 128);font-family:sans-serif;"><font size="3">   Dale</font></span></div> <div><br> <div style="color:navy;font-family:sans-serif;font-size:10pt;clear:both;"><font size="1" color="royalblue"><b><font face="Georgia, Times New Roman, Times, Serif"><font color="black"><font color="mediumblue" face="Comic Sans MS, sans-serif">Dale Erwin R.P.T.<br> <font color="green">Erwin's Piano Restoration Inc.</font><br> </font></font></font></b></font><font color="darkgreen"><span style="font-style:italic;"><b><font size="1"><font size="1" color="black"><font color="blueviolet"><font color="black"> <font color="black" face="Comic Sans MS, sans-serif">Mason & Hamlin</font><font face="Comic Sans MS, sans-serif">/Steinway/</font><font color="black" face="Comic Sans MS, sans-serif">U.S. pianos</font><font face="Comic Sans MS, sans-serif"><br> </font></font></font></font><font size="1" color="cornflowerblue" face="Comic Sans MS, sans-serif"><a rel="nofollow" target="_blank" href="http://www.Erwinspiano.com">www.Erwinspiano.com</a></font><font size="1"><br> </font><font size="1" color="crimson" face="Comic Sans MS, sans-serif">Phone: 209-577-8397</font><br> <font color="darkgreen"></font></font></b></span></font><tt><tt><font color="darkgreen"><br>  </font><br>   <font size="2"></font></tt></tt><br> <br> </div> <br> <br> <div style="color:black;font-family:arial, helvetica;font-size:10pt;">-----Original Message-----<br> From: Nicholas Gravagne <<a rel="nofollow" ymailto="mailto:ngravagne@gmail.com" target="_blank" href="javascript:return">ngravagne@gmail.com</a>><br> To: pianotech <<a rel="nofollow" ymailto="mailto:pianotech@ptg.org" target="_blank" href="javascript:return">pianotech@ptg.org</a>><br> Sent: Sat, Aug 11, 2012 5:55 pm<br> Subject: Re: [pianotech] Broken Drill Bit in Bridge<br> <br> <div id="AOLMsgPart_2_e1c73d2e-3931-479a-9fe6-295d42189f87"> Terry,<br> <br> Your friend may be interested in this little tidbit :)<br> <br> I posted this little idea on this list a while back. <br> <br> First, make small pattern of the bridge holes for later use. Next use a hollow screw extractor like Issac suggests. Remember, the pin is at an angle. There is no way to really do a nice neat job at this phase of the repair. Once the root canal is done, fill the hole with a dowel, glue in and trim flush with the top of the bridge. The purpose of the dowel is solely to provide some material for a 1/2" forstner bit brad point to center on. <br> <br> Next, use your 1/2" plug cutter to make a maple plug (1/2" should work). Note the direction of the maple material as to planing with and not against the grain, and mark your plug accordingly. With the forstner, drill down to a depth a bit less than the height of your plug. Glue in your plug; it should stick up a bit and will extend partly into the notch area. Trim down with a sharp chisel, sand smooth and DAG the area. <br> <br> Next re-drill your bridge hole (or two holes) and chisel-cut the notch in your usual way. See photos. <br> <br> Nick<br> <br> <div class="gmail_quote">On Sat, Aug 11, 2012 at 4:09 PM, Terry Farrell <span dir="ltr"><<a rel="nofollow" ymailto="mailto:mfarrel2@tampabay.rr.com" target="_blank" href="javascript:return">mfarrel2@tampabay.rr.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Ummmm, a "friend" asked me to pose the question: How best to extract a broken drill bit from a bridge pin hole? The top (broken end) of the bit is about 1/8" below the top of the bridge. Any suggestions short of gouging out a hunk of bridge?<br> <br> If I get a good suggestion, I'll pass it on to my "friend".  ;-(<br> <br> Thanks!<br> <span class="HOEnZb"><font color="#888888"><br> Terry Farrell </font></span></blockquote></div> <br> <br clear="all"><br> -- <br> Nick Gravagne, RPT<br> AST Mechanical Engineering<br> </div> <br> </div> </div> </font></blockquote></div><br></div></td> </tr> </tbody> </table> </div> </div> </div>