Primitive Archer
Main Discussion Area => Bows => Topic started by: bushboy on April 20, 2012, 02:08:48 pm
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Is the certain bow designs that lend themself better to chrysal prone wood?thx's
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Longer and wider.
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Longer and wider.
...and flater
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....and crowned saplings
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Osage
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And without a foot of unbending handle in the middle >:(.
Del <click, grumpy mode OFF> ;)
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Wood that isn't fully dry will chrysal too.
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Hx,s for replys,I really the look of purple heart,it's cheap and easy to find and after to day I now know it's very hard to work. I took devan's advise and roughedit out at 72" 1 1/2 up to 12" from the tips then down to 3/8".a very bendy handle and plan to back it with bamboo,glue it up with aslight reflex in the tips.yeah osage is hard to come by in canada or maybe I'm not looking in the right places!I did manage to buy a very knarly osage board a while back,terrible grain and all @ 22 bucks pbfg!have to say it was the most beautiful looking and easy wood to work with,peels off like chocolate!wish it was easier to find!
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Purpleheart is very prone to chrysal. I have made several and they all eventually did. What draw length and weight are you shooting for?
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50@28 would do nicely!well it not imploding I guess!
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Make it as long, wide limbs bending evenly with as flat a belly as you can make.
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Quite frankly, a 1½" wide bamboo backed purpleheart bow is just begging for chrysals. You asked for a design that doesn't lend itself for chrysals. Well, we gave you advice, but backing a compression weak wood, while leaving it narrow, certainly wasn't on our list of recommendations ;)
This would be my advice when using purpleheart, which is very prone to chrysals:
-Do not use bamboo for a backing; use a lighter wood such as maple or ash.
-Trap the backing, and leave the belly flat.
-Make the limbs at least 2" wide.
-Let it bend through the handle.
-74" for a 28" draw.
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Backing with something that keeps the splinters from lifting and has plenty of 'give' may help. Think about backing with rawhide or even brown paper bag. Make the back a little bit narrower than the belly (trapping...short for trapezoid, the shape of the cross section of the limb) could asist, too.
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Not to argue JW, but I don't think paper is enough for purpleheart. I have always used hickory. Rawhide would be good. A strong linen.
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I'll defer to Bevan on this.
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Thx's for the input guy's,am going to try to do something with this purple thing,it was a lot of work to shape!will let u know how it turns out or doesn't!