I did that in the design of a new model. We built one prototype with taller wippen heels for the sharps. The "production" folks overrode me. It added more to the cost than it was worth .... to them. I still think it is a good idea. Go for it! Frank Emerson ----- Original Message ----- From: William Truitt To: pianotech at ptg.org Sent: Thursday, January 07, 2010 10:17 PM Subject: [pianotech] Action Ratio sidebar I've been following the ongoing discussion about action ratios with interest. Yesterday I had need to visit the Wessell, Nickel, and Gross website, and noticed something interesting in the Half Stroke article listed under what's new. As all of you know, the magic (half stroke) line for the naturals will not be the same for the sharps because the distance from the sharp balance rail pin to the capstan is less than that of the natural. WNG recommends using a capstan heel that is 2 mm thicker than that for the natural - if the natural capstan heel is 19 mm, then you use a 21 mm for the sharps. This way both naturals and sharps can be properly set up and observe the half stroke line. This is easily accomplished because the WNG repetitions are modular, with the capstan heel a separate piece that is glued into the bottom of the rep lever, and there are many sizes available. Today when I called I was told that the reps normally ship with only one kind of heel, but that they will make the substitution for the sharps on request. I've got a Steinway A that I am setting the action up on now, and will use this setup. It will be interesting. Will Truitt -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100107/61f8e003/attachment.htm>
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