Hello Antares, The new hammer boring dimension results in a shank that is exactly parallel to the string. HB distance - hammershank center to keybed = string ht. Bob --- antares <antares@euronet.nl> wrote: > Hello Bob, > > It would seem that your hammer boring is not right. > > EAR > > > > On 19-mrt-05, at 16:22, Bob Hull wrote: > > > Hello List, > > > > On a rebuild for a small but good quality grand I > am > > replacing all of the action parts and having some > > doubts about the action configuration. As I > > regulate samples the drop screw has to be lowered > > almost as far as it will go. > > > > Another relationship that appears to be off is the > > jack to hammershank relationship which is not > > perpendicular but rather it is more toward the B- > side > > (Bob Hoff terminology). How can I change this? > > > > The new (Renner) wippen with the closest match to > the > > old wippen is the one with the added heel. The > old > > jack tender/toe seemed to interface better with > the > > tilted let off rail than the new wippen does. The > new > > one gives a harder feeling ledge before let off. > > I don't like the way that feels. > > > > I realize that more information may be necessary > and > > I can supply it if asked. One other thing I will > add > > is that I had to lower the plate/string plane as > much > > as I dared to get some downbearing. I am > adjusting > > the hammer bore because of this. > > > > So to restate my question: What is indicated > about an > > action geometry when drop screws must be lowered > so > > far in order to attain suitable drop? > > I would appreciate your comments. > > > > Bob Hull > > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam > protection around > > http://mail.yahoo.com > > _______________________________________________ > > pianotech list info: > https://www.moypiano.com/resources/#archives > > > > > friendly greetings > from > André Oorebeek > > www.concertpianoservice.nl > > "Where music is no harm can be" > > > _______________________________________________ > pianotech list info: > https://www.moypiano.com/resources/#archives > __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
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