All trimmed up and ready for sinew, page 2

It will be good bow.
What is that picture made of cross sections? The picture on left is project of bow you are making or it is just poster? Can you send me both?

Rapsod, the picture with cross sections was made from drawing a full size Korean horn bow, and then adding the pictures of cross sections. You can get the cross sections at
www.hornbow.com
The one next to it is very simple, I will post it up here for everyone.
If you wanted the big one with cross sections, it would be best to draw it yourself. Big paper is available at hobby stores. It is on drawing paper, but poster paper, butcher paper, or even small sheets glued together will work.

[external image]

I like the idea of cross section picture. Are you sure that acacia is black locust? I try to find translation of black locust but everything I foun was that locust is insect. (The writing in English is so boring). I know that korean bowmaker use mullbery wood for siyahs. Why?
Because mullbery wood is good wood for boat making special for part that mustn't bend (ribs of boat example). In my home town we have two types of mullbery white and black. When mullbery wood is shaped (by steaming) it will not turn back in former shape when force is applied but it will remain same or maybe break.

Rapsod,

Traditionally, Korean horn bowyers used mulberry for the siyahs, but in modern times that type of wood is expensive and hard to come by in Korea. Nowadays, the bowyers generally use black locust (Pseudoacacia, which the Koreans call acacia).


Thomas

Sam; nice start to your bow, very traditional. Good for you.

Others, black Locust is known in Europe as Rabine. -j-

In France, most people say "acacia" but the real name is "robinier" or "faux-acacia" (=false acacia)

...or "robinier pseudo-accacia" originated from the US and introduced in europe and the far-east for the same purpose mining carpentry...

Are you shure that the wood of Robinia pseudoacacia can be used for siyahs?
It is especially interesting for me, as Hungary is plenty of Robinia pseudoacacia since the mid 18th Century, when Samuel Tessedik, a Lutheran pastor had planted the first ones in the Great Hungarian Plains in order to replace the original forests, therefore it is very easy to obtain this wood in Hungary. However, I have never heard about any other use of it but heating.

Black Locust is a superior bow wood.

(Robinia pseudo-acacia) Probably native to the USA, from Georgia west to Oklahoma and Arkansas; and northeast to New York. source- Robert A. Vines. -j-

Jeno,

Yes, you can use it for siyahs.


T

Thomas,

Thanks a lot !

J

You're welcome, Jeno.


T

hi,
good luck for your bow,samuraiwarrior.

Black locust is a very good choice for the siyahs.I?ve done any kind of siyahs out of it.I steambended it into almost semicircle shapes for my scythian bows without any problems.
In my bowclasses almost everybody wants to make a selfbow of black locust,if you go to tournaments here,I guess 40% of the bows are made of black locust.
In the Bowyers bibles it is said to show chrysalis very soon,this is true if you don?t choose your staves very well.I let my black locust-staves air drie for 4-6 years till they have a brown colour and for a high drawweight I take heavy staves with thick growthrings.Done so,I made 2 selfbows with wide limbs,165cm in length and a drawweight of 100lbs with a 28" draw.
Maybe the black locusts here in the valley of the Rhine-river have better conditions than in other places.I really love this wood.
It is and has been used by bowyers all over the world:in Africa by the bushmen in South Africa,Namibia,Botswana,they have there a so-called crippled-black locust,in Thailand they use a river-black locust.........the Native Americans used it...................

Here's the second strip glued on.
[external image]

[external image]
[external image]
[external image]
[external image]
I accidentaly got a 1/4" gap in the middle of the horn strips. I had to put in a seperate piece of horn to fill it. It isn't centered on the handle.

Hi Samurai,

It looks nice, but how you want to get a full circle reflex now.
I dont think that it works with the sinew to a circle, because the horn is already on it.

I bent the bamboocore on the ends to an reflex, then i will put the siyahs on it.
After that i bend it on the handle so, that the siyahs come together.
So i get a nice full circle.

If you want i can send you some pictures, the next days.

One Question : Must the groovings on core and horn fit very exactly ??
Or it doesn?t matter if they are not 100% exact.

Because i saw it on the Video "Making Korean Hornbow" Part 1, and i think that this guy made the groovings not so exact.

The transition from the grip to the working part of the limb is quite abrupt. Is there a risk of failure on the limb next to the grip? Do you need to strengthen it there?

Perhaps others could comment.

Stephen, I made it a little less abrupt, but it still is a great change. I will wrap the place with sinew and hope it doesn't fail. I am not sure how much a real Korean handle fades into the limb, maybe ask Thomas?

In my experience, the fade from limb to grip is the point where most Korean hornbows fail. The ATARNet picture archive is scattered with photos of these catastrophies. And my own two examples are not included!

hi,

I don?t have experience with Korean hornbows,but when I see this fade I can hear bad noises.......I really don?t hope that one of the catastrophies Stephen mentioned will happen with this bow.
Regardless what kind of bow,I would reinforce this part of the bow,in this case I would glue an additional strip of horn(2-3mm in thickness,reaching 4-5cm into the limbs)on the belly of the bow.Even this is in conflict to the Korean hornbow-tradition.
I wonder if there are any traditional measurements?