Carol. One thing that seemed obvious for me from the first minute I bumped into Stanwoods stuff was that this material was worth reading, worth getting familiar with and worth using. I know its incomplete in some regards, I know it looks away from issues like action compliance and other things... and I know that there are some formal justifications for its viability lacking..... but it does what it says it does perfectly well. In simplest conception that means achieving a static balance with an unprecedented degree of evenly distribution of mass in both keys and effective hammer weights. It also provides a system of terms and quantities that are usefull in further exploring touchweight and general touch related concerns, as I think most of the recent discussions on touchweight these past couple years display very well. Where ever all this takes us... it would seem to me that the New Touchweight Metrology, and the Balance Equation should be adopted by all of us and until something better is put forward made an official part of required RPT certification knowledge. The alternative is continued use of simple DW by so many to assess action performance... and the rather limited usage of BW and Friction quantities as stand alones. Go for it... Learn Stanwood... and dont stop there. I doubt seriously you will regret it. Cheers RicB Carol Beigel wrote: > I eased the balance holes in the bottom of the keys. I will also take the > advice to use teflon spray on the key bushings. Meanwhile, I will acquire a > nice set of accurate gram weights and read up on how to make all the > necessary measurements. I think I may also design an Excel spreadsheet for > my Ipaq that I run PocketRCT so that I can enter the measurements and let > the computer do the calculations. > > Through the years I have sat through David Stanwood's classes on this > subject, so I will now try to find my notes and class handouts. I never had > a reason before to really know about touch weight until now when pianos will > be replaced or not on my say so. I like being able to make decisions based > upon concrete, mathematical data - not brand names! I will also go to the > church and measure the touch weight on the piano my client finds appropriate > so we can compare numbers on other pianos. Apparently, it no longer is > enough that a piano action feels fine to the person buying the piano if it > can change radically after purchase! > > My thanks to all who have given their imput, and I am quite ready to receive > more advice and pointed in the right directions to learning all I need to > know about friction and balance weight in piano actions. > > Carol Beigel > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- 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
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