Hi Joe. Regarding your question: Idunno! BUT, here is something else to get anal about! The last couple uprights where I have replaced hammers, etc. I have graduated the strike weight from bass to treble consistent with Stanwood's SW curves. This may have as much or more effect on producing an even touch/tone as the shanks. Graduating the SWs won't likely do much for static touchweight, but it certainly will have an effect during play from an inertia viewpoint. Terry Farrell ----- Original Message ----- From: "Joseph Garrett" <joegarrett@earthlink.net> To: <pianotech@ptg.org> Sent: Tuesday, May 27, 2003 6:42 PM Subject: Upright Hammer Shanks > I'm in the process of rejuvenation of a really nice Victorian/German > Upright. I just finished installing the Hammer butts and putting in new > shanks, in prep for the new hammers. As I was knurling shanks furiously, I > started to notice a difference in the look/feel of each shank, as I knurled. > I decided to sort them in two groups of perceived hardness/lightness. When I > got done with the knurling, I decided to weigh off the respective piles. > What I found was interesting. The pile that I perceived as harder/heavier, > were! Those weighed out between 2.6g and 2.3g. The lighter/softer percieved > stack measured out at 2.3g to 2.0g. I installed the shanks with the > harder/heavier ones in the Bass/Tenor and the lighter/softer from mid-point > up in progressively lighter weight, in the treble/high treble. I don't have > a clue if this is going to effect anything, but we'll see. The > lighter/softer shanks were in the upper treble, which is in keeping with the > current thought of keeping the balance even throughout the keyboard. One > thought occurred to me, would stiffer shanks, in the top treble, improve the > tone? If that is the case, then the lighter/softer shanks will flex more, > (or, at least, I assume so), creating a lesser tone production from all of > the counter-productive flexing. It seems like a true "Catch 22". What think > you'all? > Hmmm? I never really gave this much thought, before. I guess I get more anal > with Grands than Uprights. > Best Regards, > Joe Garrett, RPT, (Oregon) > > Been There, Didn't Like It, So I'm Here To Stay! [G} > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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