Hi Richard, What thickness of glue did you use? Joe Goss ----- Original Message ----- From: Richard Brekne <Richard.Brekne@grieg.uib.no> To: PTG <pianotech@ptg.org> Sent: Wednesday, October 18, 2000 12:47 AM Subject: CA and Bridge Pins > Hi List > > Ran into an interesting experience with CA application on bridge pins I > wanted to share with you all. I got to thinking about the discussion we had > a couple weeks back, about the need to remove the strings etc... > > It struck me that the strings exert all this side pressure on the bridge > pins and that perhaps there was some benifit to exploiting this in applying > the CA... to keep the pressure on sideways. I wondered if this was going to > be as big a problem in terms of CA getting on the strings, building up > under strings..etc and how much work was going to be involved in cleaning > that up. > > Something about this sideways pressure was to ...er... seductive shall I > say... so having the perfect beater to try it out on I decided to give it a > shot. I mean heck the worst that could happen was that I would have this > big mess I would have to clean up on my own time. > > What I can tell you is this.. There was indeed quite a tendency to build up > under the strings across the bridge.. especially in deeper string marks on > the bridge top. Also noticed quite a buildup down the notch under the > string, and the pitch of the piano actually rose quite a bit as this > buildup caused a defacto shortening of the strings. Sounded horrible > really, very inprecise termination CA makes.. grin.. But the suprising > thing was how easy it was to clean all the excess off. > > Simply loosening the string was enough. I loosened each string enough to > pull it off the bridge, used a screwdriver to scrap lightly the excess CA > which almost fell off on its own. In a few places where I had applied more, > I had to sort of "re-notch" the bridge.. but I wouldnt compare this to > actuall renotching. It was really easy. > > This old 9 foot over overly neglected Bechstein also got a dressup of the > hammer heads, spread reset and a quick regulation done and hasnt sounded so > good in many many years. Falsness in this instrument which was nothing > short of rampant virtually dissapeared over the whole range of the piano. > Couldnt believe the results. > > -- > Richard Brekne > RPT, N.P.T.F. > Bergen, Norway > > > >
This PTG archive page provided courtesy of Moy Piano Service, LLC