List, Dale Erwins question regarding Ron's mc meter: >? Hey Jim > ?Seriously. wanna make me one?Too busy to gear up & besides you already > conquered the learning curve. Some one could make money selling these My response: In theory yes, but I'm afraid it would be both expensive for you and a money loser for me unless I made a production run of them.. I'd have to see if there is any interest. I'll post this inquiry and see if there's any interest out there in piano land. Any interest? -- Jim Ialeggio www.grandpianosolutions.com Shirley, MA (978) 425-9026 -------------- Original message ---------------------- From: erwinspiano at aol.com > >> Coming to this thread a bit late, with a couple comments and questions. >> >> Gene, I went 'round robin hood's barn on this accurate, trustworthy mc readings question. You might check archives January '08 under "moisture meters?" for more of the discussion. >> As a result of that thread, I ended up building a version of Ron's >> direct reading dial indicator gizmo...and I love it! >> A couple of points I learned as I worked this through: >> 1-Many of us were complaining about the inconsistent and generally weird results >> achieved by oven drying. That's because oven drying is defined as between >> 215-217 deg f....a pretty narrow window. Before I calibrated Ron's gizmo, I >>experimented with trying to get consistent results in the oven. The answer was >> to be fairly anal about the oven temp. >> My oven's thermostat is out to lunch, so, not having a lab oven, and being >> generally cheap, I calibrated the oven by: >> -first taking a plumbers water testing thermometer's probe and placing it in >> boiling water, marking where boiling 212 was on the dial. >>then took a very small glass vial, like a dropper bottle, filled it with >> vegetable oil, put the plumbers thermometer in it and put it in the oven. When >> plumbers thermometer read just a hair over 212 in the oven >>marked the oven dial and waited for the temp to be stable. For me this got >> things close enough for jazz . >> 2- Hoadleys expansion/contraction/mc change formulas imply that wood's expansion >>rate is linear. Expansion rates are in fact not quite linear! That means the >>meter is best calibrated and >>read at or reasonably near the mc you are shooting for. That's really not a >> problem, because we only really care when the board has achieved that target >> 6.5% or whatever your shooting for. > Jim Ialeggio > www.grandpianosolutions.com > Shirley, MA (978) 425-9026 > -------------- next part -------------- An embedded message was scrubbed... From: jimialeggio5 at comcast.net Subject: Ron's soundboard MC GIzmo Date: Wed, 20 Aug 2008 14:01:43 +0000 Size: 4896 Url: https://www.moypiano.com/ptg/pianotech.php/attachments/20080820/7307065a/attachment.mht
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