Steinway and several others would dissagree... their spot test is to hold the shank horizontal, flange also horizontal.. and tap the shank lightly... if flange rises it is to tight, if it falls it is too loose... if it stays level... then all is well. This is what they would call the <<traditional>> method of checking friction. RicB Sarah Fox wrote: > Hi Keith, > > <<I go with a four gram flange friction target. Is there any advantage > to having the friction of the flange change with the weight of the > hammer? Maybe in the bass it should be a little tighter, more stress. >> > > If you gauge friction by the number of swings of the hammer, then the > lower/larger hammers would automatically end up with tighter > pinning. Since this is the traditional approach to hammer > flange friction (which apparently has worked well), my guess would be > that flange friction *should* be graduated from bottom to top, as you > suggest. Using a spring gauge, you would probably need to graduate > between the two ends of the keyboard, so that the top has > approximately half the friction of the bottom. (Correct???) > > Peace, > Sarah > > >
This PTG archive page provided courtesy of Moy Piano Service, LLC