At 9:12 pm -0500 19/12/06, you wrote: ><< Would any one please share their technique for shanking up hammers for a >vertical piano? >> > >Don't forget to make a hole all the way through the hammer core so that the >glue can squeeze through. Otherwise, you have pressure to fight. I've never heard of or seen anyone do that. The normal way to provide an escape for the glue is to score a line down the top of the shank for 15mm or so, but even that is not necessary if the knurling provides an escape route. A good knurler is essential, and if, as in Ed Miller's case it is impossible to knurl the shank to a fittable diameter without splitting the shank, then either the bore is too small or the shank is too fat. In this case I knurl once, then whittle away the knurling with a knife working with the blade at a right angle to the shank and then knurl again. A tool for scoring the shank is very easy to make : in a piece of hardwood cut out a channel 6mm. wide and 6mm. deep; bevel the end of a nail and drive it up through a hole bored centrally in the channel. To score the shank, drag it along the nail with some pressure. JD -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20061220/261d072a/attachment.html -------------- next part -------------- A non-text attachment was scrubbed... Name: P5CEB0A07.png Type: image/png Size: 569 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20061220/261d072a/attachment.png
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