Hi Danilo I dont know about the rest of the list, but when I access the archives to read posts yours come through as an HTML document which is scrubbed and saved via a link. When I open such links they are so full of HTML code that I usually dont bother sorting out the actual text. I did in your case, and looked quickly at what you were doing...but cant say whether your math itself was correct or not. There are a few things that happen to friction and springs tho when things are in motion that are not the same for the kind of static condition your numbers consider. Go for it tho... i.e. figuring out what numbers to put to what situations and why...you'll end up a lot farther in your understanding many (if not most) others. Cheers RicB
This PTG archive page provided courtesy of Moy Piano Service, LLC