Author Topic: Bamboo backed selfbow  (Read 8984 times)

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Offline sleek

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Re: Bamboo backed selfbow
« Reply #120 on: August 13, 2020, 12:29:14 pm »
Donít you look at the pictures? Itís laying on the caul 4 post up. Thatís not set though that was calculated precisely so this bow would have deflex and reflex . So it would shoot arrows far.  I have ocean front property in  Montana also .>:D Arvin

The way they talk about global warming,  who knows, ocean front property in Montana may not be a bad prospect. 

Any idea how many inches set it took  my calibrated eye aint what it used to be.
Tread softly and carry a bent stick.

Dont seek your happiness through the approval of others

Offline Will B

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Re: Bamboo backed selfbow
« Reply #121 on: August 13, 2020, 03:33:49 pm »
Thatís a great looking BBO. Thanks for posting the pics and showing us how you do it. Very helpful!

Online Selfbowman

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Re: Bamboo backed selfbow
« Reply #122 on: August 13, 2020, 04:07:15 pm »
Sleek it was 3-1:2 off the wall at handle off the caul. Now probably have that. Well see if itís enough to shoot 235 or so. The good thing I think is it weighed in at 18 oz. Arvin
Well I'll say!!  Osage is king!!

Offline JW_Halverson

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Re: Bamboo backed selfbow
« Reply #123 on: August 13, 2020, 04:52:55 pm »
Wishing you nothing but good luck and long flights, brother!
Guns have triggers. Bicycles have wheels. Trees and bows have wooden limbs.

Offline M2A

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Re: Bamboo backed selfbow
« Reply #124 on: August 14, 2020, 06:38:54 am »
Thanks for showing your work! Enjoyed following along with the build. Good luck with your flight shoot.   
Mike   

Offline bownarra

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Re: Bamboo backed selfbow
« Reply #125 on: August 14, 2020, 12:49:42 pm »
Nice bow :)
I'd have gone with a little more bend out of the fades.

Online Selfbowman

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Re: Bamboo backed selfbow
« Reply #126 on: August 16, 2020, 06:50:24 am »
Thanks guys it was a fun build . Arvin
Well I'll say!!  Osage is king!!

Offline Bob Barnes

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Re: Bamboo backed selfbow
« Reply #127 on: August 16, 2020, 06:59:35 am »
thank you Arvin.   :OK
Seems like common sense isn't very common any more...

Offline Marc St Louis

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Re: Bamboo backed selfbow
« Reply #128 on: August 16, 2020, 12:54:27 pm »
What ratio of Bamboo to Osage did you wind up with
Home of heat-treating, Corbeil, On.  Canada

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Offline PaSteve

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Re: Bamboo backed selfbow
« Reply #129 on: August 16, 2020, 03:15:55 pm »
Very cool Arvin. Wish you the best of luck at the Flats!
"It seems so much more obvious with bows than with other matters, that we are the guardians of the prize we seek." Dean Torges

Online Selfbowman

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Re: Bamboo backed selfbow
« Reply #130 on: August 16, 2020, 04:41:25 pm »
What ratio of Bamboo to Osage did you wind up with

Marc Iím going to say45-55 to 40-60 . The lower numbers being  bamboo. I think with this design  and these materials this would have made a better bow with less set at 40-45#. That would have gotten the materials more even . That is one thing about flight shooting and building bows for flight.  Trying to hit those weights with unpredictable materials. I have heard it on here that the bow will be what it has if tillered right. So if a bow starts taking set early on the wood does not have that draw weight in it. Compromise and make less draw weight bow.  Hope your able to understand my thoughts . Please respond if you are or arenít in agreement. Arvin
Well I'll say!!  Osage is king!!

Offline Marc St Louis

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Re: Bamboo backed selfbow
« Reply #131 on: August 17, 2020, 08:37:21 am »
Well that's not too bad.  Usually the ratio is more like 20/80.  Who knows, maybe with those ratios there will be better performance, I tend to think not but you never know.
Home of heat-treating, Corbeil, On.  Canada

Marc@Ironwoodbowyer.com

Online Selfbowman

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Re: Bamboo backed selfbow
« Reply #132 on: August 17, 2020, 10:46:09 am »
Marc I only built a hand full of bamboo backed  bows . So much to learn!!
Arvin
Well I'll say!!  Osage is king!!

Offline Bob Barnes

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Re: Bamboo backed selfbow
« Reply #133 on: August 17, 2020, 10:57:14 am »
that's the only way you'll ever know what works best for you and the intended purpose.  I agree with Marc about 20-25% bamboo maximum for a BBO... "Less is more" 
Seems like common sense isn't very common any more...

Online Selfbowman

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Re: Bamboo backed selfbow
« Reply #134 on: August 17, 2020, 11:39:29 am »
Ok guys I could not wait. Shot two 454 gr bamboo broadhead arrows one 245yds and one 240 yds. That was with D97 . Pretty sure Iíll get 240 yds with linen at the flats with it. Weíll see. Better than I thought. I think the 18 oz had a good bit to do with it. Arvin
Well I'll say!!  Osage is king!!