Oh yeah? Got anything in writing? I think Mark Andersen and Margie Williams of the SF Chapter came up with that idea...so there! David Ilvedson, RPT Pacifica, CA 94044 ----- Original message ---------------------------------------- From: "Joseph Garrett" <joegarrett at earthlink.net> To: pianotech at ptg.org Received: 10/10/2009 11:48:48 PM Subject: Re: [pianotech] broken Spinet Hammer Shank >Rob McCall said: "It's broken very close to the hammer butt, so I plan on using the >Spurlock method with the drywall screw, wallpaper paste remover, heat, >etc. to remove the remnant still left in the hammer butt." >Rob et al, >Let's get something correct in regards to this method and where it came from. I >came up with that system 10 years before Spurlock ever thought of messing with >pianos!! The original system, which was developed for a vandalized Baldwin Hamilton >Studio, was not a sheet rock screw, which tends to split things out. It was a 1 1/2" >#8 sheet metal screw. First, the shank was cut flush with the top of the butt. A >hole was drilled with a 3/32" drill, down the center of the shank. Water filled the >drilled hole. Then the sheet metal screw was inserted. Then the sheet metal screw >was heated and a shank puller was used to extract the shank stub. For the hammer >end, cut away any glue fillet and soak the shank hammer tail with water and extract >as usual. The reason Wall Paper Remover was NOT used, was becausue is affects >glue integrity, if you glue before it is completely dry, (which takes at least 12 hours!) >You already have the hammer and butt out of the piano, so I'd advise you to extract >the shank from the butt and re-install it in the piano. It's no big deal to glue a shank >into the butt. Then, trim the shank, (dry fit) so that the hammer is the correct >alignment with it's neighbors. Swab the hammer head hole with glue, (preferrably >cold Hide Glue), and put the hammer back on. Align. If you heat the Cold hide glue >with a cup of HOT water, the glue will set up faster, so you won't have to chase the >darned thing for very long.<G> I hope this helps. (and clarifies the system >origin.<G>) >Regards, >Joe >Joe Garrett, R.P.T. (Oregon) >Captain, Tool Police >Squares R I
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