>For instance, locating the bridge at 200mm, > or 33mm off center, the height is 0.05mm lower. At 150mm, or 85mm off > center, the height difference is 0.3mm. That's a closer tolerance than > you'll likely be able to build to. A little more perspective, if I may. Even in the treble, with, say, a 200mm top rib and a tight 4M crown, you're likely not getting the effect you expect. With a center crown height of 1.25mm, you'll be centering the bridge at roughly 35-40mm in from the belly. At that position on the rib, the crown height is 0.72-0.80mm. Ron N -------------- next part -------------- A non-text attachment was scrubbed... Name: high point1.jpg Type: image/jpeg Size: 74086 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090615/f3784bd2/attachment-0001.jpg>
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