---------------------- multipart/alternative attachment "Bradley M. Snook" wrote: > RicB: "Yes, you should. And its no big deal to do so really. A good > set of pinchers applied neatly at the knuckle core and you can pop > them right out. Just make sure you keep track of which way the nap of > the leather is going. Reglue carefully to line up better then you > started out with. You see this all the time, and out of place or angle > knuckles can really affect the ratio big time. Improving this kind of > thing not only can help drastically the problem you mention, but also > make for much more consistent leverage and play." OK, this kind of > thing is what I was really after . . I'll give this a try sometime > today. One thing though: I should probably line up the flange side of > the knuckle (instead of the hammer side), is that right? > What you want to do is to just make sure the all the knuckles are at > exactomundo 90 degrees (as in perpendicular :) ) to the shank, and > that they are not cockeyed so that one side is higher then the other. > If the slots for the knuckle cores are not in the same place...well > then you have a bit more work to do, but thats not usually the case. > Just make them all nice and straight. > > So it doesnt matter which side you line up so much... all the sides > have to line up...sort of like looking down a nice clean hammer line. > Richard, you had also talked about looking at the wippen height. Have > you every bolstered the knuckles to compensate for the unevenness in > the wippen height? > > I have bolstered knuckles on occasion, but only to compensate for very > flatened knuckles that had plenty of good leather on them. Been a > while now as I usually just replace them. In anycase I dont think I'd > look at it exactly as compensating for uneveness in whippen height.... > tho I see where you are coming from. > > Uneven whippen height normally relfects something about the hammer > line. Either hammer bore is irratic, or knuckles are inconsistant... > there are other possibilities. A good test is to put a straight edge > under a whole section of whippen cushions with the rack off of the > keyframe. This insures a dead on whippen line for the moment... then > look at your hammer line and note any inconsistancies. Gives you a > real good picture of some of the problem areas you have in your top > action. Correct what you can of course :) > > Hope this helps. > > Bradley Cheers RicB -- 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 ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/51/3a/91/97/attachment.htm ---------------------- multipart/alternative attachment--
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