Author Topic: bamboo bow string?  (Read 6914 times)

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Offline JoJoDapyro

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bamboo bow string?
« on: February 26, 2015, 11:53:47 pm »
Has anyone tried to make a string from bamboo thread? Just curious.
If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline tattoo dave

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Re: bamboo bow string?
« Reply #1 on: February 27, 2015, 07:51:07 am »
I've wondered the same thing a time or 2. Bamboo fibers seem like they would make a good string. Never tried it though, not sure how to get a hold of some bamboo fibers.

Tattoo Dave
Rockford, MI

Offline paco664

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  • ok,ok.. i might have done it...
Re: bamboo bow string?
« Reply #2 on: February 27, 2015, 08:43:16 am »
i don't know about strings... but they make very durable clothing from bamboo...
I'm too drunk to taste this chicken"~Col.H.Sanders

Offline DC

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Re: bamboo bow string?
« Reply #3 on: February 27, 2015, 10:13:33 am »
I found out from a fiber dealer the other day that bamboo fiber isn't natural fiber. It's basically rayon made from bamboo instead of wood. It's advertised as environmentally friendly because bamboo is very renewable.

Offline JoJoDapyro

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Re: bamboo bow string?
« Reply #4 on: February 27, 2015, 10:27:19 am »
I searched Flax fiber and found a site that sells flax, bamboo, hemp and then blends of fibers for knitting. The bamboo is called "Bamboo carbon Fiber"
If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline Springbuck

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Re: bamboo bow string?
« Reply #5 on: February 27, 2015, 12:16:30 pm »
I found out from a fiber dealer the other day that bamboo fiber isn't natural fiber. It's basically rayon made from bamboo instead of wood. It's advertised as environmentally friendly because bamboo is very renewable.

I don't understand this.  If it is made from the bamboo, how is it not a natural fiber?   I have actually read some of the Chinese patent information regarding the proprietary processes which chemically break down bamboo to allow fiber extraction, but it primarily involved enzymes and depolymerizing stuff I didn't understand well.

  Tell me where I can get bamboo thread and I will try it, but my impression is that the processes do leave you with short fibers, hence you see bamboo cloth, but not rope.

Offline JoJoDapyro

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Re: bamboo bow string?
« Reply #6 on: February 27, 2015, 12:26:27 pm »
The bamboo fibers are as long as the hemp and flax fibers they sell. PM sent.
If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline Carson (CMB)

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Re: bamboo bow string?
« Reply #7 on: February 27, 2015, 01:42:20 pm »
In Alleley and Hamm there is a drawing of a bow where the discription says that the string is from cane fibers. It looks like it is lit down as thin as possible then possible crushed and rolled to get long fibers.
"The bow is the old first lyre,
the mono chord, the initial rune of fine art
The humanities grew out from archery as a flower from a seed
No sooner did the soft, sweet note of the bow-string charm the ear of genius than music was born, and from music came poetry and painting and..." Maurice Thompso

Offline DC

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Re: bamboo bow string?
« Reply #8 on: February 27, 2015, 09:03:14 pm »
I'm not saying it's bad it just isn't a natural fiber like flax.
 http://en.wikipedia.org/wiki/Bamboo_textiles

A little down the page it says "modern use also see rayon". Rayon is manufactured by dissolving the cellulose in some solvent and then spraying it through a spinneret and letting it harden. Kind of remanufactured fiber.

But wait there's more I just noticed. A Swiss company "Litrax" has a new way of making it that sounds more like what I would like.
Any way, read the two Wikipedia articles 

Offline Springbuck

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Re: bamboo bow string?
« Reply #9 on: February 27, 2015, 09:23:40 pm »
Awesome, thanks.

The Litrax stuff does sound more like the process in the patent papers I was reading.  The deal seems to be that an extra breakdown or enzymatic step is necessary, because there is less parenchymal tissue between bamboo fibers as compared to hemp or linen.  Which is why bamboo is "woody".

FTC says that in order to be called bamboo fiber, it must be mechanically separated, and if bamboo cellulose is chemically broken down to vicose and and extruded like rayon, it must be called rayon or "rayon made from bamboo".
« Last Edit: February 27, 2015, 09:42:21 pm by Springbuck »

Offline freejutube

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Re: bamboo bow string?
« Reply #10 on: August 21, 2020, 09:45:35 am »
hello,

i tried the primitive way : the bamboo strip "bowstring";
https://www.youtube.com/watch?v=iVQ0ZdGtx44

now searching for info about how to do it reliably...
some ideas, please ?

Offline JohnL

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Re: bamboo bow string?
« Reply #11 on: August 22, 2020, 10:25:19 am »
     I picked up a spool of bamboo thread from a craft supply, once, with the same idea.  Problem is, bamboo thread is not twisted-up from long fibers.  They crush bamboo, then chemically ret-out the fibers --which by that point, are just short torn-up lengths.  Then they spin that into thread, called "Viscose".  What you end up with is no different from soft cotton thread, made of short fibers.  If you pull a length between your hands, it breaks immediately.

-John

Offline Hamish

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Re: bamboo bow string?
« Reply #12 on: August 22, 2020, 06:23:16 pm »
I seem to remember the New Guinea natives, and perhaps some other Melanesian islanders using a thin split piece of bamboo, to act as a string for their bows. No threads, or weaving, just a thin split piece, tied of on both ends.

Offline freejutube

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Re: bamboo bow string?
« Reply #13 on: August 23, 2020, 05:52:03 am »
I seem to remember the New Guinea natives, and perhaps some other Melanesian islanders using a thin split piece of bamboo, to act as a string for their bows. No threads, or weaving, just a thin split piece, tied of on both ends.

yes... i've tried just that... worked well for a few shots... now searching for tips about how to tie the bamboo strip reliably, with strong natural plant material (not animal sinew, hide or guts), and in a way that doesn't hurt the bow...

i've read about an interesting way to do it, but didn't dare to try yet :
- keep a long strip of bamboo on each side of the future bowstring,
- smash those into fibers
- tie the rest of the strip to the bow with its own extremities that should have become supple...

seems too simple and elegant to be true or easy to do :-)  and not sure it wouldn't hurt the bow (bowstring with zero elasticity)... well... will have to try that with an old bow...


bownarra

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Re: bamboo bow string?
« Reply #14 on: August 23, 2020, 10:46:20 am »
It won't have zero stretch and anyway that is exactly what you are after with a bow string so don't worry :)