<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Re: v-bar/capo repair: Seiler pictures 2</title></head><body> <div><font face="Arial">Hi Barbara,</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">I agree with David and Ron N, I think the front duplex length is one of the main issues. There is also a degree of capo bar deformation which won't be helping matters either.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">Hardening the bar along with reducing the duplex length would most likely help. However, the string approach angle is getting up there to be running against hard bars and the last note before the bar has quite an offset angle over the bar. So if this bar is hardened you will have difficulty avoiding the tendency for the fist capo-note strings to skid across towards the adjacent treble strings (this is not uncommon when the bars are hardened). This tells you something about soft capo bars, they are grooving, and the grooves are holding the strings in the position they were aligned to. It stands to reason that the piano wire will be rattling on the deformed groove as it vibrates. Hard hammers will bring out the worst that is there to be had.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">You could experiment with front duplex length reduction by selecting the note with the most offensive string noise, placing a small bar under the string as close as possible to the capo. The transformation will very likely astound you. Its unfortunate that S&S persist in using 40 mm as a front duplex standard for the first capo notes. By default a great majority of the rest follow suit. When copying some one else's specification, it helps to understand what it is we are copying.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">Surely we can learn something by observing the fact that string noise in upright pianos is just about non existent. I believe it is no coincidence that upright pianos don't have 40 mm between the V bar and pressure bar. If they did they'd be noisy also.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">Just as an aside, that plate is conveniently shaped for retrofitting a strut between the plate and the belly rail. Often the lower corner, where the plate strut meets the agraffe mounting plate, is radiused making it hard to centre-drill the plate for seating the strut.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">For those of you who haven't seen the struts that we fit between the plate and the belly rail I've posted an image to my personal web space. Its a bit big to post to the list.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial" >http://members.optusnet.com.au/ronovers/hardened_KG6_capo.jpg</font></div > <div><font face="Arial"><br></font></div> <div><font face="Arial">This plate has the characteristic inconvenient radius right where we would prefer to locate the strut.</font></div> <div><font face="Arial"><br></font></div> <div><font face="Arial">Best,</font></div> <div><font face="Arial">Ron O.</font></div> <x-sigsep><pre>-- </pre></x-sigsep> <div><font face="Times New Roman" size="+1" color="#0000FF"><b>OVERS PIANOS - SYDNEY</b></font></div> <div><font color="#000000"><i>   </i></font><font color="#0000FF"><i>Grand Piano Manufacturers</i></font><font color="#000000"><br> _______________________</font></div> <div><font size="-2" color="#000000"><br> </font><font color="#000000">Web http://overspianos.com.au</font></div> <div><font color="#000000">mailto:ron@overspianos.com.au<br> _______________________</font></div> </body> </html>