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#41
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 7/12/2013 6:06 PM, Swingman wrote:
Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? |
#42
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
Greg Guarino wrote:
On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". -- www.ewoodshop.com (Mobile) |
#43
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 8/27/2013 6:21 AM, Swingman wrote:
Greg Guarino wrote: On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". So the table top in the photo is veneer over some substrate? |
#44
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 8/27/2013 5:43 AM, Greg Guarino wrote:
On 8/27/2013 6:21 AM, Swingman wrote: Greg Guarino wrote: On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". So the table top in the photo is veneer over some substrate? Nothing mysterious/exotic ... 3/4" A1 Walnut Plywood (Domestic), selected and cut for best grain effect. -- eWoodShop: www.eWoodShop.com Wood Shop: www.e-WoodShop.net https://plus.google.com/114902129577517371552/posts http://www.custommade.com/by/ewoodshop/ KarlCaillouet@ (the obvious) |
#45
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 8/27/2013 7:46 AM, Swingman wrote:
On 8/27/2013 5:43 AM, Greg Guarino wrote: On 8/27/2013 6:21 AM, Swingman wrote: Greg Guarino wrote: On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". So the table top in the photo is veneer over some substrate? Nothing mysterious/exotic ... 3/4" A1 Walnut Plywood (Domestic), selected and cut for best grain effect. Ah. It's ply. Now I understand. Thanks. |
#46
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On Tue, 27 Aug 2013 10:28:33 -0400, Greg Guarino
wrote: Nothing mysterious/exotic ... 3/4" A1 Walnut Plywood (Domestic), selected and cut for best grain effect. Ah. It's ply. Now I understand. Thanks. Don't be afraid to use plywood in the right application. It can look every bit as good as the solid wood and be more stable. It woks well with a solid wood edge trim. |
#47
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 8/27/2013 7:46 AM, Swingman wrote:
On 8/27/2013 5:43 AM, Greg Guarino wrote: On 8/27/2013 6:21 AM, Swingman wrote: Greg Guarino wrote: On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". So the table top in the photo is veneer over some substrate? Nothing mysterious/exotic ... 3/4" A1 Walnut Plywood (Domestic), selected and cut for best grain effect. I'm curious. Does this mean that tables of similar design were not made before plywood (and chipboard, mdf, etc.) existed? |
#48
Posted to rec.woodworking
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eWoodShop - Goldberg Hall Table - ++++Wood movement question
On 8/28/2013 10:17 AM, Greg Guarino wrote:
On 8/27/2013 7:46 AM, Swingman wrote: On 8/27/2013 5:43 AM, Greg Guarino wrote: On 8/27/2013 6:21 AM, Swingman wrote: Greg Guarino wrote: On 7/12/2013 6:06 PM, Swingman wrote: Took long enough ... finally delivered this today: I've been wondering about this for a while. Your table top consists (I assume) of two pieces of 3/4" solid wood glued up as a panel, surrounded by (two layers of) border. I have considered trying to make something that is conceptually similar; a table made of several slats of solid wood with some sort of border around the edges. I have been advised against attaching an end piece to cover the end grain of the main panel; expansion and contraction of the panel boards will eventually break something, apparently. But in this (very nice) piece, I see exactly that: https://picasaweb.google.com/1113554...031 842824786 Is it the full (four-sided) border that makes this OK somehow? (as opposed to just covering the two end-grain edges). Or does the addition of splines in the corners strengthen the border enough to counteract the movement of the panel pieces? You do not want to frame a "solid wood" panel of any type in that manner. You can get away with that type of framing in the photo when using a veneered panel, made by gluing veneer on both sides of a dimensionally stable substrate like MDF; or using some nicely figured plywood with the veneer of your choice within the frame. Because two sides of a "solid wood" framed panel are always going to be "cross grain", you must make allowances for the inevitable cross grain movement within any frame, like with a flat or raised panel door; or with breadboard ends on the two cross grain ends on a table top, etc. Also, be careful with the term "solid wood. In the commercial cabinet and furniture industry, plywood is considered "solid wood". So the table top in the photo is veneer over some substrate? Nothing mysterious/exotic ... 3/4" A1 Walnut Plywood (Domestic), selected and cut for best grain effect. I'm curious. Does this mean that tables of similar design were not made before plywood (and chipboard, mdf, etc.) existed? May be not, at least not with any great results. AAMOF plywood has been around for thousands of years, the ancient Egyptians invented it IIRC. |
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