---------------------- multipart/alternative attachment On 6-sep-04, at 22:23, Joe Garrett wrote: > RicB, > Why do you insist on 10mm dip? IMO, aftertouch should be the ultimate=20= > criteria. So what if the dip is 9mm? Seems like a no brainer, to me.=20= > If everything else is functioning properly and you don't get bobbling=20= > with a shallower dip....go for it. Many pianists dislike a dip at=20 > 10mm. Some prefer it as shallow as is feasible. Speed will increase,=20= > but power will suffer, slightly. Most Yamamas could use a bit less=20 > "power", IMHO!<G> > Best Regards, > Joe Garrett, R.P.T. > Captain, Tool Police > Squares R I > Joe, Of course after touch is extremely important, but it is based on the=20 basics of da regulation. First we regulate according to the rules. It is way to bring all the=20 levers etc into position, so to speak. To get them into position, we need certain rules or criteria. Most=20 modern piano's are designed to play best with a key dip of 10 mm. The=20 10 mm will generate a striking distance of =B1 45-48 mm or an equation = of=20 approximately 1: 5 Most pianists like a key dip of 10 mm. There are exceptions, of course,=20= but in that case they usually want a more shallow key dip. A bigger key=20= dip means more work which nobody really wants. With a 10 mm key dip you=20= can basically break the crystal. A Steinway D has, according to the=20 Steinway Service manual (written by Mr Max Matthias) a key dip of 9.75=20= mm, but all smaller models (S-B) have a shallower key dip of 9.50 mm.=20 There are other cases with deviations like Pleyel and Bl=FCthner. Generally speaking, 'most' piano makers want their instruments to play=20= at a key depth of 10 mm. We have had this discussion before and Richard then pointed out that=20 there are exceptions to da rule. However, if you want your piano to play at for instance11 mm, you will=20= have a problem making the proper after touch of around 0.5 mm because=20 you will have to lower your hammer almost to the ground, so to speak. One can also turn it around : A .05 mm after touch generally speaking=20 calls for a striking distance between 45-48 mm (depending on the kind=20 of piano) and thus a key dip of 10 mm. But again.... exceptions are the rule. Andr=E9 Oorebeek ---------------------- multipart/alternative attachment A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 2654 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/66/f9/9a/b1/attachment.bin ---------------------- multipart/alternative attachment--
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