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#1
Posted to rec.woodworking
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What's going to happen?
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you
cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? -- dadiOH ____________________________ Winters getting colder? Tired of the rat race? Taxes out of hand? Maybe just ready for a change? Check it out... http://www.floridaloghouse.net |
#2
Posted to rec.woodworking
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What's going to happen?
On 7/30/2013 7:57 AM, dadiOH wrote:
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? It will likely be wider. |
#3
Posted to rec.woodworking
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What's going to happen?
dadiOH wrote:
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? Assuming the lumber will shrink on drying, the groove will also shrink. It may also not be straight, as shrinkage is not always uniform. The board also may crack from the end(s). -- GW Ross If we aren't supposed to eat animals, why are they made of meat? |
#4
Posted to rec.woodworking
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What's going to happen?
On 7/30/2013 5:57 AM, dadiOH wrote:
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? Well, drier certainly. Wood shrinks as it dries. OK you can plan for that, kind of. What you can't account for is shape changes: cupping, bowing, and worst of all twisting. Take a look at http://www.motherearthnews.com/diy/w...#axzz2aXDupDop or better yet: http://tinyurl.com/kxg4xze Good luck and good night. mahalo, jo4hn |
#5
Posted to rec.woodworking
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What's going to happen?
On 7/30/2013 7:57 AM, dadiOH wrote:
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? It's going to shrink right along w/ the rest of the board as it dries...it'll also probably want to cup; didn't give any info on thickness of board nor the dado with respect to thickness nor grain--was it plain sawn w/ noticeable radii, quartersawn or something in between? -- |
#6
Posted to rec.woodworking
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What's going to happen?
On Tuesday, July 30, 2013 7:57:16 AM UTC-5, dadiOH wrote:
Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? -- dadiOH ____________________________ Winters getting colder? Tired of the rat race? Taxes out of hand? Maybe just ready for a change? Check it out... http://www.floridaloghouse.net My guess... The board will shrink more in width than it does in length. Whether the board "arcs" to open or close the groove will depend on the way the grain curves at the end of the board... the grain usually tries to straighten out. Beyond that, there will be lengthwise cracks. |
#7
Posted to rec.woodworking
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What's going to happen?
In article , "dadiOH"
wrote: Suppose you have a green - REALLY green - board 10" wide and 2-3' long; you cut a 1" wide groove long ways through the center, stopping 2-3" from each end. What's going to happen to that groove once the board is bone dry? Narrower? Wider? Nothing? It depends on how it is cut from the log. Each grain pattern ends up different. some cup and the cut would be wider on one side and narrower on the other. Some warp and the cut might be different widths along the length. Some get shorter. Some get narrower. The type of wood and the drying conditions also play a role. Properly stacked and dried the cupping and warping can be minimized. Properly sealed so that the drying is slow and even and the shrinking can be minimized. It all depends as to what the result will be. |
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