Primitive Archer
Main Discussion Area => Bows => Topic started by: Jon Kaw on March 10, 2017, 04:48:13 pm
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I finally finished up the hickory bow I was working on. This is my third bow and my most successful so far. 66"NTN, 44#@28". I lightly toasted the belly. Cork arrow rest with deer hide grip and strike plate. It took 1.5" of set which increases to 2" after a shooting session, but returns to 1.5" after a period of rest. Good cast at hunting distances and quiet.
(http://i.imgur.com/3LEMoPd.jpg)
(http://i.imgur.com/P3Uv3cC.jpg)
(http://i.imgur.com/hSgTZGq.jpg)
(http://i.imgur.com/ZfbyXEE.jpg)
(http://i.imgur.com/SbESOmN.jpg)
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Thats too bad we have all had that happen, some constructive criticism, the inner needed to bend more and the bottom limb can you see about mid limb that rather sharp bend? If that wasn't a hinge it was so close it was a cousin. Try and get the whole limb working on the next and the set will go down and the bow will last longer. Man it sucks when they go huh
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I like it Jon. Title says it went boom, sure hope not.
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I was at a friends house letting him try the bow out. I had put about 200 arrows through it already. He was drawing back when I heard a loud CRACK! The bottom limb blew up.
(http://i.imgur.com/UvvadR7.jpg)
Post mortem exam shows a tiny knot on the back of the limb that I failed to notice during layout. There was no indication of the knot on the belly. I'm guessing it was too close to the edge of the limb. :-\
(http://i.imgur.com/rgdlXOy.jpg)
(http://i.imgur.com/xFNNKXI.jpg)
(http://i.imgur.com/2GbvqXw.jpg)
I want to thank everyone for their input as I was building this bow. As I said at the beginning of the post, this is still my most successful build to date. The folks on this site are a deep source of inspiration.
On to the next stave! :OK
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I don't think you can blame yourself for that one. That is a major flaw that was hidden inside. Even if you had seen the knot it doesn't look like there was any outside indication of all that manky stuff inside. I had a similar thing happen with a piece of yew.
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That's a shame. I agree that you aren't to blame for that one.
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The break looks near where bubby said there was a hinge in the bottom limb. I'd say the internal flaw had a lot to do with the break but the hinge also contributed. It is very uncommon for hickory to have a tension failure. Did you cut and season the hickory yourself?
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That sucks especially after you dressed it up , it happens the sooner you start another the sooner you will forget it, I keep my failures on a wall to remind me of what not to do there is always a reason why the failed it takes me a while some times to figured it out but there is always a reason .
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Combination failure of hinge and overgrown defect.
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No, Pat, I bought the stave. It was split in '14. I'm sure my flawed tiller did contribute to the fail. But I'm getting closer. ;)
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Jon, other than the minor flaw on your part(hinge) and the major internal flaw you did a fine job with this bow. :OK
Great attitude too! 8)
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There's still a silver lining out there.
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could there be a bit to much ring violation at that spot,, looks like a pin knot flattend out, hard to tel in the photo,, I once heard that when a plane crashes from Pilot errer,, it is usally not one thing but at least 3 contributing causes,, maybe the same with a bow,,when it blows,, (W
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Dang it man!
Well as you say, on to the next ;) :BB
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Time to start on a new one :BB
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Wow the new emoticons are getting popular😉 :KN
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Get back on the horse that threw you and ride as soon as possible. To near ya to hear ya. Been there and done that. It only gets better . Arvin
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It looked pretty whip tillered..
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Hickory is Uber tough stuff.yes internal flaw,perhaps fungus and a weak bottom limb.the full draw shows the top limb towards you and the bottom away.turn the pic upside down and it is easier to see.building wooden bows is an exercise of determination!good luck on the next one!
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Sorry for your loss. I would have to agree with tillering advice. One thing I might add is as much as you'd love someone else to enjoy the thrill of shooting your bow it can be a bad idea. I've had people who I told don't draw past your corner of mouth and they assured me they wouldn't then drew once to corner of mouth smiled and then drew to ear. Didn't break my bow but sure wasn't good for it either.
Bjrogg
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Nice job, learn and move on!
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too much bend concentrated in too small an area....unseen flaw in the wood....letting someone else draw your bow....all contributed to the failure.....but "failures are the pillars of success"....so learning is a positive thing...your next one will be better