<!doctype html public "-//W3C//DTD W3 HTML//EN"> <html><head><style type="text/css"></style><title>Re: physically getting hammers on shanks</title></head><body> <div>At 9:12 pm -0500 19/12/06, you wrote:</div> <div><br></div> <blockquote type="cite" cite><< Would any one please share their technique for shanking up hammers for a<br> vertical piano?  >><br> <br> Don't forget to make a hole all the way through the hammer core so that the</blockquote> <blockquote type="cite" cite>glue can squeeze through. Otherwise, you have pressure to fight.</blockquote> <div><br></div> <div>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.</div> <div><br></div> <div>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.</div> <div><br></div> <div>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.</div> <div><br></div> <div align="center"><img src="cid:p0624067cc1aea21d1a90@[10.0.0.1].1.0"></div> <div align="center"><br></div> <div>To score the shank, drag it along the nail with some pressure.</div> <div><br></div> <div>JD</div> </body> </html>