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"Sliding dovetail" support

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Forum topic by Jarrett posted 08-29-2016 01:42 AM 295 views 0 times favorited 5 replies Add to Favorites Watch
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Jarrett

70 posts in 587 days


08-29-2016 01:42 AM

I’ve got a table to knock out and ship cross country to California. Customer wants rustic wooden top with modern metal base. I did a trial of a small table awhile back that had a “sliding dovetail” to join it to the metal base. The dovetail piece was screwed to the metal base and the wooden top was doweled to the sliding dovetail piece. Trial table has held up well (movement wise) for about nine months now. Should I employ same concept on larger table? Picture of small trial treadle and sketch of dining table to build are attached.

-- Jarrett http://www.cattywampuswoodworks.com


5 replies so far

View jerryminer's profile

jerryminer

528 posts in 901 days


#1 posted 08-29-2016 03:10 AM

I’m not understanding how the sliding dovetail slides if it’s dowelled to the top.

Am I missing something?

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Jarrett

70 posts in 587 days


#2 posted 08-29-2016 10:05 AM

My apologies for the misunderstanding. By “sliding dovetail” I mean it’s going to be cut through the width of the tabletop. The dowel will be fitted dry, with no glue to give a little flexibility to the table as it acclimates from the Appalachian region to a conditioned house in the dry parts of California. I realize it’s not exactly as good as a “figure eight”, but I think close to the same thing is accomplished and if I have a change of heart, I can always fab up some hefty figure eights when I’m welding the base.
Top and base are being crated and shipped separately, so I figure this way wouldn’t be too bad to reassemble, just drive the fasteners in from the base into the sliding dovetail in the predetermined holes of the base

-- Jarrett http://www.cattywampuswoodworks.com

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HokieKen

1733 posts in 598 days


#3 posted 08-29-2016 12:03 PM

Hey Jarrett. Shipping on this thing will be a bear I bet! At least them west-coasters know where to come to get the good stuff ;-)

I think the sliding dovetail will do a nice job a marrying the rustic and industrial elements together on this one as well as being effective at the intended purposes of allowing for movement in the top. I’m not sure if you intend to run the dovetail the full width of the top or just the width of the base but, I think I’d run it the full width of the top. I think the look of the large, exposed dovetail will be a nice feature but I also think it may be needed to support the overhang of the top to prevent sagging over time.

Hope all’s well down there with you and the family!

-- Kenny, SW VA, Go Hokies!!!

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Jarrett

70 posts in 587 days


#4 posted 08-29-2016 03:24 PM

Shipping is going to be a bear, a rhinoceros, a moose, and a few elephants! Originally, the H frames were going to have a much wider stance, but home owner wanted more clearance. If it was local, I’d pull a trick out of the boatbuilding hat and melt down some lead or pour sand/aggregate into frame for ballast. But since it’s going far, I’m doing as Ken says and extending dovetail to edge of table. I’m also going to weld a piece of flat stock on top of metal legs that will extend our past legs to help with support/assembly…and the two young boys that may decide to hang from table’s edge.

All is great down this way, Ken! Hope it’s the same up threre!

For anyone reading this, HokieKen just finished building a beautiful gun rack out of cherry. It’s not your typical gun rack, but once you see it, you won’t want want a typical gun rack.

-- Jarrett http://www.cattywampuswoodworks.com

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HokieKen

1733 posts in 598 days


#5 posted 08-30-2016 01:45 AM

Awww shucks… you’re making me blush

-- Kenny, SW VA, Go Hokies!!!

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