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Forum topic by PhillipRCW posted 08-24-2016 09:33 PM 445 views 0 times favorited 7 replies Add to Favorites Watch
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PhillipRCW

386 posts in 724 days


08-24-2016 09:33 PM

Had an idea cross my mind this week about using two slabs of different species and color for a table top. Instead of a traditional glue up, I am thinking about making a large interlocking dovetail seam. Any suggestions or concerns on an idea like this? I plan on gluing together, but possibly highlighting the seam by carving it out some.

-- Phillip- Measure twice, cut onc.... Hey look, it's rustic.


7 replies so far

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JADobson

676 posts in 1570 days


#1 posted 08-24-2016 09:50 PM

There might be some concern about weakening the joint as you have endgrain running across your dovetail. They could be prone to breaking off. But if you can get the joint together without any problems I imagine it would hold up alright. disclaimer – I’ve never made anything like this, just conjecturing.

-- James

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Texcaster

1138 posts in 1133 days


#2 posted 08-24-2016 09:52 PM

Long grain dovetails are inherently weak. That said, Howard Klepper seems to manage.

http://www.klepperguitars.com/index.html

-- Mama calls me Texcaster but my real name is Mr. Earl.

View pintodeluxe's profile

pintodeluxe

4852 posts in 2273 days


#3 posted 08-24-2016 11:13 PM

Small, long-grain tails would be prone to breaking. End-to-end dovetails aren’t very strong either.
What about dovetail shaped inlays to give the illusion of one wood species lapping into the other?

If you are set on trying it, I would make the sockets large compared to the tails. This will maximize the long-grain surface area.

Another option is to cut the dovetails in a veneer, then apply the veneer to an appropriate substrate.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

View jwmalone's profile

jwmalone

769 posts in 162 days


#4 posted 08-25-2016 12:19 AM

I was browsing pics of quarter sawn oak and saw this.

-- "Boy you could get more work done it you quit flapping your pie hole" Grandpa

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PhillipRCW

386 posts in 724 days


#5 posted 08-25-2016 01:00 PM



Small, long-grain tails would be prone to breaking. End-to-end dovetails aren t very strong either.
What about dovetail shaped inlays to give the illusion of one wood species lapping into the other?

If you are set on trying it, I would make the sockets large compared to the tails. This will maximize the long-grain surface area.

Another option is to cut the dovetails in a veneer, then apply the veneer to an appropriate substrate.

- pintodeluxe

I’m thinking these “dovetails” would be all the way through and at least 6-8” long. I have some large 34” wide X framed metal legs that I made for a dining table, so the top needs to be substantial enough for that. I could even route out a little area under the table and run a few metal straps across it to help it stay together.

I understand the risk of end grain being on the dovetails, but I am horrible with veneer, so I think I’d steer clear of that option for now.

-- Phillip- Measure twice, cut onc.... Hey look, it's rustic.

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PhillipRCW

386 posts in 724 days


#6 posted 08-25-2016 01:07 PM



I was browsing pics of quarter sawn oak and saw this.

- jwmalone

That is gorgeous. I’ve seen a few designs like this and I definitely want to try my hand joining a few slabs like this. I have some cottonwood rounds that would be pretty cool to do this too. I think for this table I want to do the solid seam down the center with contrasting colors though. I need something for the shows to just grab people and make them not want to leave. Maybe this will be it, maybe not, but it’s stuck in my head now and I just need to find the right way to do it.

-- Phillip- Measure twice, cut onc.... Hey look, it's rustic.

View shipwright's profile

shipwright

7162 posts in 2257 days


#7 posted 08-25-2016 01:21 PM

It would be a piece of cake with veneer.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees. http://thecanadianschooloffrenchmarquetry.com/

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