At 11:57 PM +0100 12/18/04, Richard Brekne wrote: >>Keith McGavern wrote: >> >>>The jack center should compare very favourably.... yes ? >> >>If you mean favourably to the same gram resistant tolerances as >>hammer flanges, sorry, no way. > >I beg to differ Keith. I always set jack centers very close to the >same kind of tightness that the hammer centers should be. Very close is not equivalent to same as. >And the same for the whippen flange center, and really just about >any center pin you could think of in the action. They simply need >to be as tight as they can be while still providing for free motion >of the parts involved. If you put a friction guage on each center >and measured with equal distance from each centerpin for each >part... the readings would be very much the same all around. Very much the same sounds like very close. Keith -- Keith McGavern Registered Piano Technician Oklahoma Chapter 731 Piano Technicians Guild USA
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