Primitive Archer
Main Discussion Area => Bows => Topic started by: Wooden Spring on February 20, 2014, 11:54:00 am
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My wife is enamored of purpleheart, and wants a bow made out of this stuff, but I've never built an entire bow out of it - so far I've just used it for accents...
If I back it with 1/8" hickory, and need it to be around 30# @ 26" about how wide and long would a pyramid bow need to be?
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Made a hickory backed purple heart a long time ago. Hickory backing was too thick @ 1/4" thick and almost ended up with no purple heart on the belly but it was also glued into some reflex which I wouldn't recommend. The purple heart also suffered from a lot of compression fractures. Depending on your wife's height I'd make it long to try and avoid any compression issues and maybe to 1.5" wide to 3/8" nocks.
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Made a bamboo backed purple heart longbow for a friend's wife last summer...hope it helps,
http://www.primitivearcher.com/smf/index.php/topic,40861.msg545815.html#msg545815
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I remember that bow, DoubleW! It was pretty flashy! And so were the arrows.
Since purpleheart has a tendency to fret, make sure you go long in the limbs like ryoonn says. I've always thought backing it with a thin slice of maple would be a great contrast. With a simple oil finish you will have a strong contrast between the colors of the two woods.
You may want to consider using a spar varnish with UV inhibitors as your final coat of finish. As I understand it, purpleheart, like osage, will darken when sunlight has it's way with it. Purpleheart will turn brown eventually.
And as always, post pics of the process and the finished bows. Many of us can't read, we can only look at the pretty pitchers! :-[
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I have a pc that I am gonna back with maple probably gonna go 1 1/4" at the fades and straight taper
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I have a pc that I am gonna back with maple probably gonna go 1 1/4" at the fades and straight taper
That's what I was thinking... Either 1 1/4 or 1 3/8 and I'll be gluing in about 2" of reflex. I'm shooting for around 30#
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Can't help ya, but had to mention. I was at the wood store earlier today, and they just got in a pile of curly purple heart boards. I'd never seen curly before today, it was sweet!
Tattoo Dave
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Over the Years, I've seen quite a few attempts at backed Purpleheart bows. All chrysaled terribly on the belly side.
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I made one some years back with a maple backing. Had one small chrysal. Bow had a good cast for the draw weight.
Make a wide flatbow and you should be fine.
Before you go through the trouble, remember the wood will darken A LOT and it'll look brown after some time.
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PS: found the link with some more info:
http://www.primitivearcher.com/smf/index.php/topic,5171.15.html (http://www.primitivearcher.com/smf/index.php/topic,5171.15.html)
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I've made a couple of elb's with purpleheart bellies. They look great for a while but as others have said use a uv inhibitor finish and keep it out of sunlight! ;)
I'd go with an ash backing and trap it. Hickory is too strong for most p/heart imo.
1 1/2 wide to 1/2 nocks pyramid. I'd make it 68 ntn for a 26 inch draw. You can always narrow it if needs be.