On 1/1/07 2:58 PM, "kpiano" <kpiano at goldrush.com> wrote: > Nor I, just trying to give and get a visual of the procedures. How do you > solve the turning > over of the stack constantly to check the work? The way I have done it you can > travel a > shank, check it refine it, do the next one. Of course I'm talking a whole new > set of shanks, > just installed. Hi Keith, A late response: I do a section at a time rather than a shank at a time. I rough in a section, marking all hammers of shanks that need to be traveled "a good bit." I then set the stack upright, shim all those flanges, and check. I make a variety of marks to show more or less how much shim to use (longer, shorter, double line). Then I generally refine that section, and go on and rough in the next one. I establish three or four levels on the tail where I make marks, so I distinguish between passes, and know what I did before. It's kind of like leveling keys: do all the keys that need over 0.010" punchings first, then refine progressively on subsequent passes. For traveling, I usually find three passes is enough, sometimes four. I figure at the university I'll be back at the piano again in a year or five (if it is at all critical), and will re-refine it then. At which point two passes will probably be enough, starting from a better initial condition. I'll note that as you take care of the worst, it becomes easier to judge those that are closer. "Circles of refinement," as Mr. Mannino likes to say. A great concept for all our work. Regards, Fred Sturm University of New Mexico
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