Hypotheitcal Real World wood movement question ...

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rjent
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Post by rjent »

JPG40504 wrote:How about Truth or Consequences?
I was wondering when someone wood pick up on that .... LOL.

How did I figure it wood be you ..... :rolleyes: :D

Dick

BTW, this purposeful misspelling process is hard to do (like breaking up) ..... :D
Dick
1965 Mark VII S/N 407684
1951 10 ER S/N ER 44570 -- Reborn 9/16/14
1950 10 ER S/N ER 33479 Reborn July 2016
1950 10 ER S/N ER 39671
1951 jigsaw X 2
1951 !0 ER #3 in rebuild
500, Jointer, Bsaw, Bsander, Planer
2014 Mark 7 W/Lift assist - 14 4" Jointer - DC3300
And a plethora of small stuff .....

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dusty
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Post by dusty »

rjent wrote:I was wondering when someone wood pick up on that .... LOL.

How did I figure it wood be you ..... :rolleyes: :D

Dick

BTW, this purposeful misspelling process is hard to do (like breaking up) ..... :D
Then don't do it.
"Making Sawdust Safely"
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JPG
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Post by JPG »

dusty wrote:Then don't do it.
Wooden dat bee luverlee:D!
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╟JPG ╢
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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rjent
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Post by rjent »

dusty wrote:Then don't do it.
Thank you, I always wait for permission ..... ;)
Dick
1965 Mark VII S/N 407684
1951 10 ER S/N ER 44570 -- Reborn 9/16/14
1950 10 ER S/N ER 33479 Reborn July 2016
1950 10 ER S/N ER 39671
1951 jigsaw X 2
1951 !0 ER #3 in rebuild
500, Jointer, Bsaw, Bsander, Planer
2014 Mark 7 W/Lift assist - 14 4" Jointer - DC3300
And a plethora of small stuff .....

"The trouble with quotes on the Internet is that you can never know if they are genuine." - Benjamin Franklin
charlese
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One last thought

Post by charlese »

Although we figure expansion/contraction by using the largest movement - tangential, I have not seen a truly flat grained board since seeing wide boards sawn from LARGE trees.

Most flatsawn boards that are now available have at least one edge that is truly rift grain. Sometimes both edges and sometimes the edges are quartersawn grain. This happenstance really reduces the calculated flatsawn movement.
Octogenarian's have an earned right to be a curmudgeon.
Chuck in Lancaster, CA
charlese
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Post by charlese »

JPG40504 wrote:How about Truth or Consequences?
Don't know, but I used annual moisture changes from the Western part of New Mexico.
Octogenarian's have an earned right to be a curmudgeon.
Chuck in Lancaster, CA
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rjent
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Post by rjent »

charlese wrote:Although we figure expansion/contraction by using the largest movement - tangential, I have not seen a truly flat grained board since seeing wide boards sawn from LARGE trees.

Most flatsawn boards that are now available have at least one edge that is truly rift grain. Sometimes both edges and sometimes the edges are quartersawn grain. This happenstance really reduces the calculated flatsawn movement.
You guys are just a warehouse of knowledge. That is a very true statement. That idea was wandering through my empty head as well, but didn't know if it was part of the equation or not.

Thanks charlese, you are an expert!

What a great forum!

Dick

T or C is in the (mountainous) Southern/Western New Mexico.
Dick
1965 Mark VII S/N 407684
1951 10 ER S/N ER 44570 -- Reborn 9/16/14
1950 10 ER S/N ER 33479 Reborn July 2016
1950 10 ER S/N ER 39671
1951 jigsaw X 2
1951 !0 ER #3 in rebuild
500, Jointer, Bsaw, Bsander, Planer
2014 Mark 7 W/Lift assist - 14 4" Jointer - DC3300
And a plethora of small stuff .....

"The trouble with quotes on the Internet is that you can never know if they are genuine." - Benjamin Franklin
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JPG
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Post by JPG »

rjent wrote:You guys are just a warehouse of knowledge. That is a very true statement. That idea was wandering through my empty head as well, but didn't know if it was part of the equation or not.

Thanks charlese, you are an expert!

What a great forum!

Dick

T or C is in the (mountainous) Southern/Western New Mexico.
I second that!!!!!!:cool:
╔═══╗
╟JPG ╢
╚═══╝

Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10
E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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dusty
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Post by dusty »

rjent wrote:You guys are just a warehouse of knowledge. That is a very true statement. That idea was wandering through my empty head as well, but didn't know if it was part of the equation or not.

Thanks charlese, you are an expert!

What a great forum!

Dick

T or C is in the (mountainous) Southern/Western New Mexico.
You live there so you must know but this is not what I call mountainous.

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"Wild Bad Bob"
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Post by "Wild Bad Bob" »

Hypothetical questions!!!! Sounds like my ex!!!!LOL
Okay, what type of wood, it makes a difference, is the end grain sealed, makes a big difference. My cherry end tables and coffee tables I made are at least that wide and no way is there 3/8" variation in seasonal changes. I dont even consider moister expansion when I build some thing and never had noticeable expansion, let alone a problem. I have done ship lap joints on some backs of pieces, but that was for ease and looks.
I am adding here, "edit" I think your #s are wrong, if I remember right they figure 1/8" average per foot of width as a general #, not a 1/4", and if it does it will happen first and most at the end grain area. That is one reason some, when gluing up panels use a "spring joint" to help alleviate that and help prevent any future possible "checking".
Now go to the shop and do something physical, and do away with the hypothetical stuff!!!!!!!!!!LOL!!!!!!!!!!
Measure once, cut as many times as needed to get it right! Bob
56/57 Greenie with jointer, 85 Mark V with band saw, 63 Goldie with jointer, 3 ER 10s, 1951 vintage, Hernia from the Er 10s, Tool Shop SS clone 6" jointer, and 6" belt sander, Delta 10" TS, Buffalo 6" jointer, Craftsman 12" BS, 10" Ryobi planer. Compound Miter, and misc.
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