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Japanese Joinery

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Spalted Walt

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Oct 11, 2016, 9:31:53 AM10/11/16
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DerbyDad03

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Oct 11, 2016, 5:27:23 PM10/11/16
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On Tuesday, October 11, 2016 at 9:31:53 AM UTC-4, Spalted Walt wrote:
> https://twitter.com/TheJoinery_jp

Obviously a lot of glue area on some of those joints, but I gotta ask:

How many of those joints actually exist outside of a computer?

Spalted Walt

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Oct 11, 2016, 6:01:50 PM10/11/16
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Swingman

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Oct 11, 2016, 6:42:38 PM10/11/16
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If I had been exposed to this at an early age it would have been all
over for me ... I'm not into Zen, but I could get lost, mind and body,
in doing that kind of joinery, but it would have to be on my terms, IOW,
to the exclusion of everything else.

Reminds of when I taught myself to code when I was much younger ... get
lost in for days, or sometimes weeks.

--
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Wood Shop: www.e-WoodShop.net
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Larry Blanchard

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Oct 11, 2016, 7:42:05 PM10/11/16
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On Tue, 11 Oct 2016 17:42:29 -0500, Swingman wrote:

> Reminds of when I taught myself to code when I was much younger ... get
> lost in for days, or sometimes weeks.

I was a programmer for 40+ years. Thought I'd never do it again after I
retired. Then I discovered Arduino - now I write code for my model
railroad :-).


--
When fascism comes to America, it will be wrapped in the flag and
carrying a cross.

Larry Kraus

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Oct 11, 2016, 9:30:52 PM10/11/16
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See
https://fabiap.files.wordpress.com/2011/01/wood-joints-in-classical-japanese-architecture.pdf

Includes drawings with measurements and some strength analysis. Many
lock with no glue at all.

Martin Eastburn

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Oct 11, 2016, 10:44:00 PM10/11/16
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I guess - no glue on many of them.
They exist on the fancy furniture and boxes and whatnot.

The craftsman might work on the project for months. We do the same in
hours or days.

Martin

Spalted Walt

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Oct 11, 2016, 10:46:26 PM10/11/16
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Thank you for the excellent pdf, Larry! The complexity of their
style is mind boggling. The math on pg 88 through the finished
corner hip roof joint on pg 95 is completely amazing.

J. Clarke

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Oct 12, 2016, 5:28:20 AM10/12/16
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In article <KrhLz.28360$xH2....@fx44.iad>, lion...@consolidated.net
says...
>
> I guess - no glue on many of them.
> They exist on the fancy furniture and boxes and whatnot.
>
> The craftsman might work on the project for months. We do the same in
> hours or days.

We use strong-ties and lots of nails, the Japanese use precision
workmanship. Some buildings built their way have been in continuous use
for more than a thousand years. How many built with Strong-Ties and
Loctite will still be standing after that span of time?

notbob

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Oct 12, 2016, 1:40:56 PM10/12/16
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On 2016-10-12, J. Clarke <j.clark...@gmail.com> wrote:

> We use strong-ties and lots of nails, the Japanese use precision
> workmanship. Some buildings built their way have been in continuous use
> for more than a thousand years. How many built with Strong-Ties and
> Loctite will still be standing after that span of time?

Danged if I know. What I do know is, they burn great in a firestorm.

nb

Martin Eastburn

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Oct 13, 2016, 11:56:49 PM10/13/16
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There are plenty of wood structures standing after 600 years. One just
has to be in that country and see the old buildings.

The Old English "Eastburn Manor" - is still standing and in good shape.
It was there a very long time ago.

Cultures in Japan and China and some other places have existed and they
stayed in the same area / site for much of or all of the time.

Martin

Swingman

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Oct 14, 2016, 1:19:33 PM10/14/16
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On 10/13/2016 10:56 PM, Martin Eastburn wrote:

> There are plenty of wood structures standing after 600 years. One just
> has to be in that country and see the old buildings.

When I was living in the UK, used to visit a pub, "The Royal Standard of
England" that was 900 years old at the time ... built ten years before
the Battle of Hasting in 1066.

Took this photo circa 1963:

https://goo.gl/photos/Jy9m1mm5XLDHgCet5

The notable thing, besides its age, was how short the doorways were.
Folks were obviously shorter in that part of the world before the
Normans invaded. LOL

G. Ross

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Oct 14, 2016, 4:21:45 PM10/14/16
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Swingman wrote:
> On 10/13/2016 10:56 PM, Martin Eastburn wrote:
>
>> There are plenty of wood structures standing after 600 years. One just
>> has to be in that country and see the old buildings.
>
> When I was living in the UK, used to visit a pub, "The Royal Standard of
> England" that was 900 years old at the time ... built ten years before
> the Battle of Hasting in 1066.
>
> Took this photo circa 1963:
>
> https://goo.gl/photos/Jy9m1mm5XLDHgCet5
>
> The notable thing, besides its age, was how short the doorways were.
> Folks were obviously shorter in that part of the world before the
> Normans invaded. LOL
>
Is that vinyl siding ?

--
GW Ross

Misfortune: The kind of fortune that
never misses.






Swingman

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Oct 14, 2016, 6:17:29 PM10/14/16
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On 10/14/2016 3:22 PM, G. Ross wrote:

> Is that vinyl siding ?

I don't think Mr Robinson whispered "plastics" into Ben's ear until 1968?

Joseph Gwinn

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Oct 14, 2016, 6:33:59 PM10/14/16
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On Oct 11, 2016, DerbyDad03 wrote
(in article<9b47a814-6db9-4eea...@googlegroups.com>):
The Japanese use no glue at all, and are very proud of it.

All of these joint types are used, somewhere.

In buildings, strong joints, which are intentionally complex, to dissipate
earthquake energy in the joint friction. There are no triangle braces or
plywood shear sheets in Japanese building frames.

In furniture, beautiful joints. Japanese furniture can be taken apart and put
back together without damage.

And, as others have noted, they have many wooden buildings that are 1,000
years old. Glue would be goo or dust by now.

Joe Gwinn

Electric Comet

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Oct 17, 2016, 12:41:47 PM10/17/16
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On Tue, 11 Oct 2016 13:31:45 +0000
Spalted Walt <res...@newsgroup.pls> wrote:

>

they also have taken joinery to the next level with cnc

the joints are too complex to do by hand

interestingly they used gluelam beams and cnc to create large spans
that require no load bearing supports that would normally break up
the space

think it was a music auditorium they built using this technique

the beams were curved also which added to the complexity of the joint
and led them to cnc milled joints









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