Brian writes: << Different people have slightly different methods, but it will be something like adding or subtracting punchings (with the 'spacer' in place) until at the bottom of the key stroke, the jack is just making contact with the letoff button. >> Greetings, I suppose I am one of the "different" people. I like to set my aftertouch by using the fall of the hammer from the jack, rather than the first contact with the let-off button. The latter is too easily confused with the drop leather making contact. A maximum of .050" is my limit for aftertouch, but that doesn't tell the whole story. Consistancy comes from the amount of pressure that you use to determine this dimension. A firmer pressure is more consistant, so keep in mind what you are doing. Using a .050" spacer and very firm pressure may produce about the same aftertouch as a .020" with a very light pressure. This is done about midway in the regulation procedure. Obviously, the balancier, let-off, hammer line and key level have to be finished. After the aftertouch has been determined, the final backcheck height must be set, which then allows the most refined approach to setting the repetition springs. Regards, Ed Foote RPT
This PTG archive page provided courtesy of Moy Piano Service, LLC