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Thread: Blackwood dining table
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8th March 2007, 04:45 PM #1
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Blackwood dining table
I've finally made a start on my Blackwood dining table.
To begin the process, I'm making up the legs, rails and slats. This will be followed by the top a bit later on.
I'm broadly plagiarising a design I saw in a magazine a while back - but with a bit of Bassoon thrown in
Instead of using solid timber for the 135 x 135 legs (which would weigh nearly 75 Kg each
, and cost a pretty penny
), I'm making up some torsion boxes from MDF with inner bulkheads, mortice support blocks and high density expanding foam in the mortice block "compartments", then glueing on some blackwood strips (at 3mm thick, they're too thick to be considered veneer).
Some pics follow.
1 is a very fuzzy image from the magazine, but it's enough to get an idea.
2 Show the MDF core panels & "bulkheads"
3 is of the prototype core plus four real ones - the latter still taped up after glueing on the b/wood strips.
4 shows the nearly finished cores (still to inject the foam)
5 is post foam injection for the cores, plus a heap of b/wood strips that I resawed from a couple of selected boards.
These boards were first jointed, then a strip taken off, jointed again, and so on. A bit tedious, but I wanted consistent strip thickness and finish. The jointed surface went on facing the core, and then each leg was jointed again after the glue had set as this method provided a rigid support to smooth the outer faces. Some hand planing & scraping, a couple of coats of sanding sealer (shellac & talc from uBeaut), then a light sand at 400 grit.
I haven't decided yet what the final finish will be, but likely either hard shellac or Danish Oil.
Some more pics follow...
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8th March 2007 04:45 PM # ADSGoogle Adsense Advertisement
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8th March 2007, 04:51 PM #2
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Some more pics
These three pics show the legs finished bar the upper and lower plinths & the mortices for the rails.
I usually find cutting accurate mitre joints to be a bit of a tril, especially long ones like these, but I'm quite pleased with the outcome here.
Comments welcome!
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8th March 2007, 05:13 PM #3
dubadubadubaduba....
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Good idea, nicely executed. you also get the prize for the most useless pic ever posted!
DennisThe only way to get rid of a [Domino] temptation is to yield to it. Oscar Wilde
.....so go4it people!
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8th March 2007, 06:28 PM #4
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That first photo is a shocker! A bit fuzzy?
I'm a dancing fool! The beat goes on and I'm so wrong!!!!
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8th March 2007, 06:33 PM #5
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Now tell him what you really mean
Originally Posted by goodwoody
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8th March 2007, 07:06 PM #6
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The legs look great Steve.
Can't wait to see more progress pics.
Tex
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8th March 2007, 08:00 PM #7
......say what?
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Looks like an interesting piece AB, I think, er from the pic.
Great job on the mitres. Economical use of timber.
Curious as to the use of foam to fill the legs? Why not some ribs or such?I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Albert Einstein
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8th March 2007, 08:32 PM #8
The typo kign
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Excellent work Steve. I'm looking forward to the rest of the project being posted as you go. The legs look grouse.
If at first you don't succeed, give something else a go. Life is far too short to waste time trying.
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8th March 2007, 09:03 PM #9
.
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Great legs Steve
it makes so much sence to make MDF guts and thick veneer skins, why waste timber.
Curious, why did you miter the MDF and why fill the hollow? and the blury pic is fine if you squint your eyes
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8th March 2007, 09:13 PM #10
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I was thinking the same thing Steve. Originally Posted by Lignum
The Legs look fantastic though.
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8th March 2007, 09:30 PM #11
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9th March 2007, 10:25 AM #12
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The only reason for using mitres on the MDF was practice Originally Posted by Lignum
Great legs Steve it makes so much sence to make MDF guts and thick veneer skins, why waste timber.
Curious, why did you miter the MDF and why fill the hollow? and the blury pic is fine if you squint your eyes
As to the use of foam. it 1) helps to make a very rigid structure whilst still being light, 2) it provides a little extra support for the (loose) tenon that will attach the rails.
I calculate that at 800Kg/M3 solid legs would weigh over 42Kg for the 4, whereas this method makes all four legs weigh less than 6Kg. They aren't going to warp, bow or do aother odd things either.
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9th March 2007, 10:57 AM #13
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Steve,
Mitres are also used in a slightly different way in the link here (page 2) http://www.popularmechanics.com/home...g/1273281.html
I think your way is better given the loss of weight - Should look great in blackwood. Any details on what you are planning for the rest of the table? breadboard ends like the link?
Cheers,
____________________________________________
BrettC
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9th March 2007, 11:15 AM #14
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Coming along nicely. Looking forward to more posts (pun not intended)
Bob
"If a man is after money, he's money mad; if he keeps it, he's a capitalist; if he spends it, he's a playboy; if he doesn't get it, he's a never-do-well; if he doesn't try to get it, he lacks ambition. If he gets it without working for it; he's a parasite; and if he accumulates it after a life time of hard work, people call him a fool who never got anything out of life."
- Vic Oliver
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9th March 2007, 01:12 PM #15
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Nice work on the mitres Steve.
The pic looks fine to me.Scally
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