At 10:54 PM 12/12/98 EST, you wrote: >>><snip>I tuned the treble section and raised the hammer line >>>enough to achieve letoff. <snip> >>>Patrick Draine, RPT >Jon writes: >>Don't you mean 'to achieve aftertouch'. >>The amount of hammer blow has nothing to do with the >>point of escapement. It'll cure lost motion. I hope you checked >>the repetition springs, especially if the shanks were on the rail. > >Hang on there! if the capstans are low enough so that the jack tender doesn't >reach the let-off button before the key bottoms out, there will be no let-off >until they are raised. >Regards, >Ed Foote > > Ok, I see your point. Ever hear the expression: "You say potato, I say potatoe" ? In a case such as this I would look at it from the point of having lost motion or insufficient aftertouch rather than no let-off. So I would have expressed it as raising the hammer line to remove lost motion (which would bring the hammer blow into a range where the jack escapes -L/O) or raising the hammer line to maintain a desireable aftertouch. You could also say that you raised the hammer line to achieve the key dip, if the keys were front heavy. Increasing the key dip would achieve L/O in this instance. The functions of the key system and how one preceives their interaction fall prey to semantics. You say piano, I say pie-anna :-) Jon Page Harwich Port, Cape Cod, Mass. (jpage@capecod.net) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This PTG archive page provided courtesy of Moy Piano Service, LLC