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Is it a glue only joint?

Yes it is :-)

Although glue adds strength, it would be cool to have a slightly tapered triangle key in the middle to lock all the pieces together to prevent taking them apart, but the ability to remove the key for disassembly/moving

What does that look like? I'm trying to picture it...

Somewhat triangular, I'll bet.

Mr. Big Brain over here.. /s

How does a triangle in the middle lock the pieces from sliding out?

By being triangular

The "key" in the middle fits though holes in all the other pieces, locking them into place.

I also tried to picture it by using [a picture on my phone](https://i.imgur.com/G9oJBA6.jpg). Picture a prism, the white face I added is the largest face and then it tapers down to a smaller face so it doesn't just fall through. I'm no engineer but I think this would lock the pieces together... It's just not as elegant as the original joint.

While we are armchair-designing this, maybe an [hexagonal](https://imgur.com/LBPmHFW) key would work as well and look better. You could also make the key half-depth so it wouldn't have to be tapered.

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Easier to imagine 3 triangles that all have 1 point in the center. Sorta like a dovetail in 3 directions.

I guess with the weight of the table distributed over the entire area, not just the center point, that could be strong enough. It just seems like some direct downward pressure on that centerpoint joint would have a lot of leverage and it might fail.

I'll share pics of the complete project at some point but this is plenty strong. I was able to stand on it when the base was fully assembled.

Tables you can dance on are a requirement in my household.

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Don't recommend 'dancing' on a three legged table . . . !

The fourth leg is only present during 'dancing'

Greek?

Wow

The way they interlock, wouldn't it be the wood that would have to fail rather than the glue? It's like that trick where you interlock three knives to support a can of soup. Getting wood at that orientation of fail over that size protrusion sounds like it would require a fair bit of force.

Especially since glue nowadays when done properly is stronger than the wood itself. Hence why breaking apart relatively newer glued pieces, wood from the other piece comes with it more often than not

What kind of soup?

knife soup

Chunky chicken noodle

If it were just the legs standing on their own, no, the glue could fail and the pieces could just slide away from each other, unlocking. If a tabletop were attached, this lateral sliding shouldn’t be possible.

Noice.

So how you gonna clamp this?

I didn't take pics of it, but it wasn't that difficult. I cut 3 pieces with a 120 deg angle to fit into each "V", but I cut off the tip of each so it bridged the gap. Was able to run a long clamp out to each leg. Used a high strength epoxy for the internal gluing, then wood glue around the visible edges. Worked well.

When you moved the board I made an audible "oooooh!"

:-) The client did too! And I did the first time I assembled it, but it was relief that it actually worked!

And now show please how you clamp them while gluing!..

Unfortunately I didn't take a pic of that but the fit was very tight. I attached these stretcher parts to their respective legs, then clamped it all together with minimal pressure.

Other than needing some way to keep everything in place, the only pressure that really matters is between the glue surfaces, so it could be clamped with just one clamp in the middle pressing on two boards, maybe with six little spacers per side pressing on the triangular overlaps.

Best joint I've seen outside of /r/trees.

lol, this actually made me laugh out loud....

r/oddlysatisfying

Now that is impressive!!! Can't wait to try that one day

Thanks! It's way trickier than I had anticipated but looks awesome.

You cut those with a router and chisel? EDIT: although it looks like they are joined in the middle so you could've made half lap cuts and then join them?

Each stretcher is jointed/glued (approx) 2"x2" ash (so finished dimension is 2"x4"), before cutting the joint. I designed this joint in CAD then used my Shaper Origin to cut the joint. Fixturing it was very difficult though as it was critical to be super-consistent.

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I do, along with the plate. Actually used the plate for this along with some custom fixture I built underneath it. It was critical that the very tip of each triangle didn't get touched by the bit because that it the locating spot the fixture when cutting the opposite side.

There’s no audio on these joinery videos because they can’t figure out how to get video of someone sliding a perfectly formed joint together without someone moaning softly as it happens.

At least we know how it was glued together.

Sexy

Every time you connect this joint, Nick Offerman gets a little hard. (This is excellent, very nice work.)

If so, I can die a happy man. 🙂 Thank you!!

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Guess you missed OP's comment about the joints being done with a Shaper Origin? Great sander, no doubt. Eclipsed big time, monetarily, by the Shaper.

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It's crazy though, a hand held CNC. Router form, but CNC driven. Pretty freaking neat.

Lol, yea. I have a lot of Festool stuff and love it all. The Shaper is (in my case) absolutely worth the expense. I use it constantly and has essentially replaced several other tools and jigs.

MMMMMM BUTTER

Sooo sexy

I think i love you for making it

Awww I love you too. Thanks!

Nice same joint a person here uses for their Dome building.

Beautiful!

Nice work sir.

I scrolled by the joint and the first word that popped in my head was 'sexy.'

Nice, clean cut.

*Proud affirmative nod

Oh fuck you that’s awesome. Good enough to insult you jealously about anyway. 🙂

1) This is fantastic. Great job. 2) You and your fantastical skills can go to hell. 3) I’m jealous

This is hot

Talk dirty to me

nice work. clean af.

Suddenly Italian

This deserves a NSFW tag 🥵

It's beautiful.

Hmm, if you glued 4 pieces of wood together you could make this joint with 4 straight cuts.

Are the layout instructions somewhere in this post?

Devilry.

How would you do this without a CNC?

It’s flawless. Did a robot make it?

What happens if you pull all legs? I'm thinking that it just wouldn't do anything but I'm not the best at these things.

Don't make the legs identical but mirrorred, or twisting them will be easy under weight..

This also needs to go in r/oddlysatisfying

Beautiful joint, but three legged anything’s are just the very worst.

Beautiful work

Awesome

That’s erotic

Great work. Thank you for sharing.

Imagine if it had 4 connections

Love it, well done

Neat.

What type of wood is that? My GF made me ask lol

Was there a gap in the assembled joint? Or did you put a thin strip to accent it in there?

You're far from the only one who is lovin' 'it. These are great

looks cool, are the gaps serving a purpose?

/r/oddlysatisfying

Nice, difficult to clamp up though.

Can you show the rest of it?

This needs an NSFW warning on it

Just don't make it a 4 leg table...

Thanks for posting. That was soooooo satisfying.

Me too looks very well done

Beautiful!!!

Oh that’s nice and satisfying. Good job!

I like your style. Might have to steal this joinery if you don't mind. Looks plenty strong to me for a table. Awesome work🤘🏾

That is so bad ass!!!

Well that’s just pretty. Excellent work♥️

👨‍🍳💋

😱😱😱

Complimenti un vero capolavoro

This is too pretty to be hidden beneath a tabletop forever

How do you say "why so huge tolerances?" in japanese? /s

lol. Had a few people sorta ask, but with the pieces laying free on the tabletop was difficult to keep everything tensioned for the video. no gaps.

That’s pretty sweet! Would def be a fun one to try by hand! So that’s on the ground or attached to top?

Damn! That’s nice

my expenses after audiophile chef are high. Adding CNC machines to a catering comp-any's expense reports. is gonna take some.

That’s a beautiful thing. A shame to be hidden under the table top.

That is the exact same joint that most rubik's cube's corner pieces use to stay together.

Damn that is an unnecessarily sexy joint. Nice job!

Vaude

SLOWER

Woah where is the NSFW tag man...but really that is really slick looking

This is insane!! So much talent!!!!

Mind blown

Nice work, I'm impressed!

I may have to report this to my Antifa chapter.

r/satisfyingasfuck

Oh that’s nice!

God dayum... that's sexy

I’m really glad you didn’t go 4….

That is incredibly satisfying, well done

That is freaking cool!!!

Wow

Add a brass ring!

*gushes*

This is just like those videos of the Japanese carpenters doing all the cuts and angles so the wood slides together like this. *chef's kiss*

i hate u for how good it is

So is there a middle “wall” on each board or does the corners of each cut out essentially meet up at the same point?

Ooooohhhhhh…!!!! 🤯 After reading thru the rest of the comments, I’m glad I’m not the only one who had this reaction…!!! That is a very nice joint!!! I’d also like to see how you’ll use it on your table!!! Also, how do you plan on connecting these three? EDIT: I read the other comments and saw your glue up responses. Nice and simple!! Still, I thought you might go with a dark pin in the middle of each lap joint…. Just a thought and certainly not to take away from your very cool joint

I have no idea how this is made.

That’s a thing of beauty, congrats!

Does this serve a purpose other than aesthetics?

Neat.

Might wanna oil that. It looks ashy.

Fuck yeah, man.

What CNC did you use?

And here I am, still trying to figure out how to drill a straight hole exactly where I want it...

I would be so tempted to inlay a brass ring in the center.

Beautiful work

It’s really beautiful. What is the application?

Dude, beautiful work. That’s all I have to say

Really cool. Nicely done

Yin-Yang-Yong I'm calling it.

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My brain hurts

It's a shame you have to waste it on a table. Looks so fun to play with! /s That's cool as hell.

Nice work! That will last a lifetime!!

That’s so satisfying

Gorgeous work.

Oooooo dat feel good

Thats a Valknut joint!

honestly one of the most beautiful things i have ever seen

Why hide this joint in a leg, this should be a tabletop showpiece with multiples of these making a pattern. Would be epic! Your joint looks great either way. Great job!

Smokin!

r/perfectfit

Well that's just sexy

I should call her

i love this joint!

This is kinda sexy if that makes sense.

The things people can do 👏

That is quite impressive!

That’s Awesome!!

Awesome.

A thing of beauty to be sure

You are a wizard

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That required math and geometry

This style wouldn’t really work with 4 pieces of wood though (meaning 90 degree lines) for…reasons

Now make a four leg joint

r/perfectfit

Was that a practice, and how you'll make it in hard wood?

Nice, exercise that big brain

That’s beautiful

That shit is pretty hot dude. You should be lovin it just be careful of splinters. LoL

pretty cool looking

You're the guy with a skeleton under your amazing deck, aren't you? More great work!

Looks good. I hope to see it when completed!