Thanks Jon, you saved me the trouble.... Terry Farrell ----- Original Message ----- > If you don't measure the dip at the front of the key (where it is 1:1) > you have to consider the length of the key and the angle formed from > pivoting on the balance rail and how far back from the front you measure. > > For instance, my dip block measures 48 mm in length, > 9.9 mm (.390") at the front tapering to 8.4 mm. > > That's roughly .19 mm decrease for each 6 mm moved back. > > But it is much too complicated for the task involved. Not only do you > have to consider the angle of the key at dip, you have to consider > the rate of height change on the risen key since it is pivoted at the > back rail. > So the height measured 6 mm back on that key will be ever so > minutely less than the +1mm due to the longer radius (probably half > the rate of change as the 'dipped' key due to twice the radius). > > Keep life simple, measure dip at the front, 1:1. > > The amount of dip is dependant on what is required for regulation > but that's a different topic. > > Jon Page >
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