<!doctype html public "-//w3c//dtd html 4.0 transitional//en"> <html> Avery Todd wrote: <blockquote TYPE=CITE><style type="text/css"></style> List, OK, here we go. People always say the only stupid question is anunasked one, so here's my first not-stupid question. :-) I think I understand how to do the individual key and shank/flange/hammer measuring but what do I need to do about the verdigris whendoing down & upweight measurements? Wouldn't I need to try andclean and repin before I do those?</blockquote> Yes definantly.  For that matter the more you can deal with friction basic regulation issues the better.   <blockquote TYPE=CITE> Or can I do just certain of the other measurements in order to determine which parts to order and then do the whole process ?</blockquote> The existing DW and UW figures are important as diagnostics as they tell you what the BW and Friction are.  The BW fits right into the formula along with your measurements for Key Ratio, FW, SW and Whippen Radius Weight so that the overall action Ratio can be determined.  Now tho BW is friction independent, the measuring of BW is perhaps less so. The more acurate the better. Besides.... you dont have to do that stuff later then.   <blockquote TYPE=CITE>Or should I just call Bob at Pianotek and ask him what to do in relation to ordering parts? Of course, then I might feel obligatedto order there. :-) It seems that I need to have the actual parts I'm going to use before all of this can be done. Am I correct?</blockquote> There's  two phases really, as I understand. There is diagnosing what you have, and there is setting up what you want. You need to know the first in order to know how to get from here to there as it were. You generally are going to use new Hammers and Shanks so those can be ordered anyways. Whippens with the assist adjustable springs are ordered if you want to use those kind of whippens or, in the case you are going to lift lots of hammer weight, you have too. The whippens depend to some degree on what you are trying to accomplish.     <blockquote TYPE=CITE> This is my first part of not understanding. I'm not verymathematically inclined so I'm still at the point of my "eyesglazing over" when I'm trying to wade through this and understandit. :-) Any advice appreciated.</blockquote> The math needed to understand most of this is probably easier then you imagine. Remember your old algebra where they had you rewrite  A = B/C so that you isolated first B then C ??  Its not much more difficult ... that is unless you want to get into all the justifications for how his formula work... but you dont need that to use his system. Dont let the math aspect intimidate you :) >Regards,>Avery Cheers ! RicB    </html>