<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:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 12 (filtered medium)"><style></style></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1>I didn’t state but I have always felt that the MH bridge was too massive and raised the impedance characteristics too much.  <o:p></o:p><o:p> </o:p>David Love<o:p></o:p>www.davidlovepianos.com<o:p></o:p><o:p> </o:p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Dale Erwin Sent: Thursday, November 01, 2012 2:33 PM To: pianotech@ptg.org Subject: Re: [pianotech] cutting down a MH bridge<o:p></o:p></div><o:p> </o:p>Did I miss why you want to cut it down /remove mass<o:p></o:p><div>Dale Erwin R.P.T. Erwin's Piano Restoration Inc. Mason & Hamlin/Steinway/U.S. pianos <a href="http://www.Erwinspiano.com">www.Erwinspiano.com</a> Phone: 209-577-8397 <tt> </tt> <tt>  </tt><o:p></o:p></div><o:p> </o:p><div>-----Original Message----- From: David Love <<a href="mailto:davidlovepianos@comcast.net">davidlovepianos@comcast.net</a>> To: pianotech <<a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a>> Sent: Thu, Nov 1, 2012 12:45 pm Subject: Re: [pianotech] cutting down a MH bridge<o:p></o:p><div id="AOLMsgPart_0_8203852f-8eea-4fcc-9947-4f9b14417664"><pre style='background:white'><tt>Or possibly a router.  I was trying to figure out how to build and position<o:p></o:p></tt></pre><pre style='background:white'><tt>a guide so as to keep the cut a constant width through the curves without<o:p></o:p></tt></pre><pre style='background:white'><tt>having to freehand it.  <o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>David Love<o:p></o:p></tt></pre><pre style='background:white'><tt><a href="http://www.davidlovepianos.com" target="_blank">www.davidlovepianos.com</a><o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>-----Original Message-----<o:p></o:p></tt></pre><pre style='background:white'><tt>From: <a href="mailto:pianotech-bounces@ptg.org">pianotech-bounces@ptg.org</a> [<a href="mailto:pianotech-bounces@ptg.org?">mailto:pianotech-bounces@ptg.org</a>] On Behalf<o:p></o:p></tt></pre><pre style='background:white'><tt>Of Terry Farrell<o:p></o:p></tt></pre><pre style='background:white'><tt>Sent: Thursday, November 01, 2012 12:06 PM<o:p></o:p></tt></pre><pre style='background:white'><tt>To: <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a><o:p></o:p></tt></pre><pre style='background:white'><tt>Subject: Re: [pianotech] cutting down a MH bridge<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>I'll second what Ron said. And if you do go that route, I know a guy in<o:p></o:p></tt></pre><pre style='background:white'><tt>Florida that makes beautiful laminated bridges.<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>But if I were going to use the original, then yeah, I'd fire up the bandsaw.<o:p></o:p></tt></pre><pre style='background:white'><tt>You should be able to saw it pretty smooth freehand. Or you could make some<o:p></o:p></tt></pre><pre style='background:white'><tt>sort of post on your fence (like a several inch bump - maybe a vertical<o:p></o:p></tt></pre><pre style='background:white'><tt>board of maple rounded on the end at a right angle to the fence) right at<o:p></o:p></tt></pre><pre style='background:white'><tt>the blade - that way you would have a guide for constant thickness and yet<o:p></o:p></tt></pre><pre style='background:white'><tt>it would allow you to change the orientation of the bridge as you go along<o:p></o:p></tt></pre><pre style='background:white'><tt>the curve. You'd probably have to do the doglegs freehand though.<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>Let me know if I can help you.<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>Terry Farrell<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>On Nov 1, 2012, at 2:18 PM, Ron Nossaman wrote:<o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre><pre style='background:white'><tt>> On 11/1/2012 12:40 PM, David Love wrote:<o:p></o:p></tt></pre><pre style='background:white'><tt>>> I'm putting a new board in a MH piano (AA) and considering trimming <o:p></o:p></tt></pre><pre style='background:white'><tt>>> that massive 40 mm wide bridge to something more reasonable like <o:p></o:p></tt></pre><pre style='background:white'><tt>>> 33mm.  Has anyone ever done that?  What was your method other than <o:p></o:p></tt></pre><pre style='background:white'><tt>>> careful band saw and a lot of sanding?<o:p></o:p></tt></pre><pre style='background:white'><tt>> <o:p></o:p></tt></pre><pre style='background:white'><tt>> Make a new one. You'll even get the chance to make a better length<o:p></o:p></tt></pre><pre style='background:white'><tt>progression across the breaks.<o:p></o:p></tt></pre><pre style='background:white'><tt>> Ron N<o:p></o:p></tt></pre><pre style='background:white'><tt>> <o:p></o:p></tt></pre><pre style='background:white'><tt><o:p> </o:p></tt></pre></div></div></div></body></html>