At 19:22 +0100 26/04/2011, I wrote: >...The stage I'm at now is that I've managed by hammering to move >the rail in about 2 mm at one end, and I'm leaving it at that until >I can be sure I'm not heading for disaster. Just as well! New day, new idea. Here is the solution. Both half-top and lock-rail are of solid walnut veneered in burl walnut. The unveneered end of the rail shows that it is of one piece. The half-top is polished before the lock-rail is attached. The sides of the rail are veneered and polished before fitting but the top is left bare. Eight holes are bored along its length for the fixing screws and the drillings are counterbored 1/2" x 1/4" deep. The rail is the screwed to the top and the fillet, also polished before fitting, glued in to provide stability. Once the rail is firmly screwed down, the counter-borings are plugged with walnut plugs and the next day these are trimmed flush, the veneer applied to the top of the rail and the lock fitted. It then remains only to polish the top face of the rail. The depth of the plugs and the fact that they are also of walnut eliminates the risk of their showing at the surface. Luckily the piano has been kept shut most of its life, so the polish on the underside of the half top is still clear and bright so I can ease it down and finish out with half-and-half and not need to iron off the veneer on the top of the rail and re-perform the original procedure. Next time I'll know! JD (900px wide at full size) -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110427/f6137d7c/attachment-0001.htm> -------------- next part -------------- A non-text attachment was scrubbed... Name: lockrail_04.jpg Type: application/octet-stream Size: 113738 bytes Desc: not available URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110427/f6137d7c/attachment-0001.obj>
This PTG archive page provided courtesy of Moy Piano Service, LLC