Farrell wrote: >Ric, the short answer is yes, they get tighter and/or looser with humidity >changes. Susan Grahm gives a very good explanation in the Technical Forum of >the October 1988 PTG Journal. > >Terry Farrell > > > And wasnt the long answer something about it kinda depends on what kind of pinblock we are talking about ? And didnt we all end up hearing so many conflicting reports and studies that we were left having to prove the real truth too ourselves via experiment ??... That said... I liked the balloon side as far as the argumentation thrown back and forth went... but being the incessent sceptic that I am... I'll reserve final judjement until I get around to proving it myself. On the side... I just tuned an S&S B in my care which has had loose pins all winter long... and now in the summer they are tight.... somethings missing in my balloon evidently :) You are right though.. Susan wrote a nice spalt. Cheers Terry. RicB >>>That was my post about winter/summer. Typical Wisconsin indoor humidities >>>are 70% in summer (or 50% with AC), and 30% in winter. There's no need >>> >>> >to > > >>>get it dryer than what you expect it to experience in the future, and if >>>you're concerned about possible damage from drying, then don't even go >>> >>> >that > > >>>far. How long? I don't know. Do you dry the soundboard on a summer >>>project before repairing cracks and separated ribs? Do this at the same >>>time. Maybe you could monitor tuning pin tightness as you go - when >>>they're loose and not getting any looser, you're dry enough. >>> >>>Mike >>> >>> >>> >>> >>> >>Grin... not to beat a drum with a busted thumb... but did we ever decide >>for certain whether pins get tighter or looser in pinblocks when things >>get dry ?? Dont I remember something about an analogy that had a >>balloon with a bunch of circles drawn on it....?... when it expands... >>so do the holes (circles) .... >> >>Cheers >>RicB >> >> > > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives > > >
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