New Ottoman Puta bow

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scemdonmez
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New Ottoman Puta bow

Post by scemdonmez » Mon Nov 16, 2009 5:42 pm

Friends ,

This is new target bow. 108 cm ntn , sal 13mm and 23 cm long.

Cem
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scemdonmez
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Post by scemdonmez » Mon Nov 16, 2009 5:50 pm

bow circle
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Kviljo
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Post by Kviljo » Mon Nov 16, 2009 8:20 pm

Wow!

How thick is the sinew at the middle at the sal, compared to the sides?

13mm - how many pounds do you think it will draw when it is finished?
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JJ
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Post by JJ » Mon Nov 16, 2009 8:54 pm

Congratulations! Great looking bow!

How is it possible that the sinew layer has that amount of transparency? I can see every groove you made on the wood... Is it simply less sinew?? Is it the glue you used?

Best regards, JJ
scemdonmez
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Post by scemdonmez » Tue Nov 17, 2009 11:36 am

Thanks,

Kviljo:

Snew is 2,2 mm thick at the middle, 6 mm at the sides. Horn 5,5 mm, wood 5,3 mm , total 11mm at middle of sal( wood and horn convex and concave).I think it will be 100-110 lb when it is finished. Core is Acer Tataricum, grip is maple- cornus mas laminate.

JJ:

The groove you see is 1,3mm thick. Transparency is not caused of less snew. Pic DSC04868 show just finished first layer of snew. After each snew layer I give pressure to the snew with round wood. This reduces air bubbles and makes the snew even.


Cem
PAZUZU
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Post by PAZUZU » Tue Nov 17, 2009 4:51 pm

Hi Scem! I like your work. I wish you success!!
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Post by Dusan » Tue Nov 17, 2009 4:56 pm

Looks good , Scem ! How long you wait ?Maybe about 1,5-2 years waiting time we can compare our bows in flyght or puta archery meeting. :D
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Kviljo
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Post by Kviljo » Tue Nov 17, 2009 5:07 pm

Brilliant stuff! :)
I guess the extra sinew at the sides make the bow much more tollerant of twisting during stringing/etc.? Perhaps more stable during shooting too?

When I was looking at the pictures now, I was kind of astonished that it looks like you didn't start out with very much reflex at all - and then the full circle after sinewing. Is it about correct to say that the core before sinewing was no more reflexed than the tips pointing 90 degrees in relation to the handle? Did all the other reflex come from the sinew? - and if it is all due to the sinew drying and curing; how long did it take for it to develop the full circle?

Sorry for asking all the questions - I'm all too exited about these bows these days... 8)
Daniel T.
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Post by Daniel T. » Tue Nov 17, 2009 5:38 pm

This is impressive! I guess I'd have to take tranquilizers before attempting to string. Imagine bending a 100# bow over the tepelik. Wow. I recall the struggle when I did it for the first time and the bow initially had only 70#.

I'd also like to ask questions. How much of the reflex remains after the bow is shot in? Do you reduce the reflex in the kasan eye by heat before stringing the first time?
scemdonmez
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Post by scemdonmez » Tue Nov 17, 2009 8:24 pm

Kviljo:

This picture is for you. Pic. show before backing.Turkish bow is reflexed after each layer of backing. After hard gelled the snew-glue bow reflexed about 20cm and end of the backing bow should be bow circle, this is original methot. I use 3 layer, each layer takes min 2 hour and it dry in 1-2 day. So bow looks a circle after 3 week.
İf you use gelled snew bundle( Korean methot) bow should be circle at the begining.
Extra snew at the sides protect the bow from cracking couse of Poisson effect.
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scemdonmez
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Post by scemdonmez » Tue Nov 17, 2009 9:04 pm

Pazuzu:

Thanks a lot. Can you find lot of Tatarian maple? İf so you are so lucky.
My grandmother's father migrated from Bulgaria:)

Dusan :

My bows wait a year for drying period but this bow will wait 2 year.

Daniel T. :

I use tillering stick ,after stringing the bow by Tepelik. Kasan eye looks like almost straight in full draw but it is need a little angle when strung. I only heat the bow when I use the tillering stick, specially for kasan eye. Kasan eye angle is very important for type of the bow.
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JJ
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Post by JJ » Tue Nov 17, 2009 9:09 pm

Scem,

I meant photo DSC04875.JPG, on this one the sinew is dry, but in the middle of the sal absolutely clear and highly transparent... I learn the sinew there is only 2,2 mm thick. Very fine workmanship!

Best regards, JJ
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Kviljo
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Post by Kviljo » Tue Nov 17, 2009 9:25 pm

Ahh, what can I say :) Thank you! My learning curve just became steeper. (or more reflexed? hehe) This will definitely be be information added to my next bow.

Again, truly impressive work!
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Bede
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Post by Bede » Wed Nov 18, 2009 10:21 am

Cem,
It really looks good. Congratulations.
Bede
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cingold
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Post by cingold » Thu Dec 10, 2009 3:21 pm

That is a beautiful bow, impressive craftmanship
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