Hello David, May I know if you are stationed at Fort Worth because I will be visiting FW soon and would like to meet up with you. I wonder if you still remember me or not, I had ever been to your work place and ordered a tuning hammer and some piano parts from you. Well, hope to hear from you. Thank you. Chwee Lan Lee --- David Love <davidlovepianos@earthlink.net> wrote: > As Bill pointed out, it's the front to back placement of the plate, > not the > height, that determines the capstan position. The farther in that > they set > the plate, the farther the capstan goes with it. Actions are fit to > the > belly with the keyframe in a fixed position by determining the > strike point > and with the hammers glued on at a fixed 130 mm. The capstan is set > also > at a specific position with respect to the center of the wippen > cushion. > This causes a variation in key ratio. You know the rest. > > On the other issue, (and response to Terry as well) the Kawai did > not have > the same problems with changes in friction. I frequently find that > new > Steinway parts do not do well with humidity swings (Renner has the > same > problem). I encounter sticking jacks, hammer and damper flange > problems on > new NY Steinways all the time. Interestingly, these problems do not > seem > to appear in the showroom (air conditioned to compensate for lots of > hot > lights, i.e. low humidity), but occur frequently once the piano is > moved > out to the customers home where humidity (at least in this area) is > always > much higher. > > David Love > davidlovepianos@earthlink.net > > > > [Original Message] > > From: Richard Brekne <Richard.Brekne@grieg.uib.no> > > To: Pianotech <pianotech@ptg.org> > > Date: 8/28/2003 8:38:29 AM > > Subject: Re: Dampp Chaser and Grand Action > > > > > > > > Farrell wrote: > > > > > Unfortunately, I believe that this is another plate indexing > problem in > which the capstan is located too far back and the ratio is just too > high > producing a very heavy feeling action." > > > > This thingy about plate height being the determinant for capstan > placement has been vaguely put up a few times in the past couple > years and > I have yet to get a finger on exactly how that works out. Just what, > step > by step proceedure do factories use to get from <<plate height>> > (over > keybed ?) to capstan placement ? > > > > Detailed explanation would be reallllly appreciated. Goes to some > of > Stanwoods proceedures, some of Baldersins (and others) criticisms of > those, > and represents one of those "far to many" holes in my own > knowledge. > > > > Thanks > > > > RicB > > > > > > -- > > Richard Brekne > > RPT, N.P.T.F. > > UiB, Bergen, Norway > > mailto:rbrekne@broadpark.no > > http://home.broadpark.no/~rbrekne/ricmain.html > > http://www.hf.uib.no/grieg/personer/cv_RB.html > > > > > > _______________________________________________ > > pianotech list info: > https://www.moypiano.com/resources/#archives > > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives >
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