Hello , There is also an old way to size the balance hole with wood shave glued inside the hole, fast and cheap, have no idea if the job last very long. If we consider hat a first class balance hole easing consider the 3 positions of the keys (and subsequently takes 3 to 6 hours to be done for a Steinway for instance), I doubt that a simple wood shave can be very reliable. But I have used it for fast repairs and it seem to work well enough, the extra wood is filed after that with a modified rat tail file. Best regards. Isaac OLEG -----Message d'origine----- De : pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org]De la part de Conrad Hoffsommer Envoye : jeudi 12 aout 2004 12:15 A : Pianotech Objet : Re: Center Rail Pin Locater Jig At 22:11 8/11/2004 -0400, you wrote: >Dale Erwin's post on the Kaplan jig made me feel like I should share this. >Tonight I made a little jig that I had been intending to make for the past >six months - the center rail pin locator jig that Bill Spurlock describes >in his October 1983 PTG Journal article. It is used to repair bad pulley >keys. Below are two pictures. Haven't used it yet, but I'm quite sure it >will work well. > >Those 20 years of Journals on CD are absolutely indispensable! > >spurki.jpg > >spurkt.jpg > >Terry Farrell > Terry, I made the same things shortly after that article came out. As I recall, (looking at a remnant) one has to make one for each use and size balance pin. The jig wears fast enough to be unreliable after one or two uses. I have a slew of key repair jobs facing me again, but this time I have the Onesti system. I'm estimating that amortization of the co$t of that system is about three sets.
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