Not really true Ron, The spring exerts pressure both ways, and its only a question of which direction exerts what amount of resisitance at any given time that decides who much each part actually gets pushed. The two moments are getting pushed apart and share the load in relation to the resistance each peice puts up. In addition, much of the time during play the pianists fingers remain on the keys long enough to inhibit completely any movement on their part. The spring does indeed lift the hammer during all conditions of play, sometimes more then others depending on the what the pianist is doing. Spring strength is set to deal with the combination of mass and friction in both directions, and how this intereracts with the pianists touch requirements and the need for repetition. Neither of these two basic concerns require extremely low hammer flange friction to opererate within time established tolerances. The desire on the part of some techs and pianists for very low flange friction is probably most related to the question of how to best accomplish a light and fast touch, and personally I think there are better ways of going about that. Cheers RicB Ron Nossaman wrote: > >>> Super-loose also makes it difficult for me to get the spring the way >>> I like it. >> >> >> You can only turn yourself into a pretzel trying...go for some >> modest, otherwise unacceptable, via medium and call it a day. > > > The problem, of course, being that the spring doesn't lift the hammer > during play. It pushes the back of the key down. We try to set the > spring strength by hammer lift, which will be greatly influenced by > flange friction, and will have only a passing relationship to what the > spring actually does. > > Ron N
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