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Reply by Wildwood

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Posted on question about drying a stump before carving

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Wildwood

2899 posts in 3011 days


#1 posted 08-06-2017 07:57 PM

People use anything from bathroom scales to kitchen and postal scales to weigh wood. When wood stops gaining and losing moisture said to be at EMC or equilibrium moisture content with its environment.

So rough carving when it’s wet or green makes life easier, but have to wait for rough carved blank to reach EMC is for final carving.

Like posted earlier most moisture meters useless on freshly felled tree due to high moisture content but okay after log reaches fiber stautration point (FSP) or about 28 to 30 % MC for ball park readings.

Like lot of wood turners and guess carvers going by feeing the weight of a blank is good enough. That’s what I still do even though have a MM now.

Just remember sap and heart wood moisture content can and does differ when planning carving you bowl. Loren kind of hit upon outside layers of wood (sap wood) dry faster than inner wood (heart wood) and of course this can vary by species and hard or soft wood. Has a lot to with wood dimensional stability or thing that cause cracking, splitting or bowl going oval. There are technical terms use to describe all this but that hard to explain.

-- Bill


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