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Author Topic: Vertical crack?  (Read 10697 times)

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Offline 0209

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Vertical crack?
« on: April 02, 2009, 08:11:19 pm »
Hey,
I've got a bit of a problem with my new osage boo bow.  Anyways, the problem is, right above the riser, I've got a vertical crack forming in the bamboo and tell you the truth, I'm sort of crapping down both legs trying to figure out what to do.  I've tried filling it with superglue and letting it sit for a little while but the crack keeps coming back, and getting a little bit bigger.  I don't know what to do with it as I really want to keep this bow as a shooting, hunting bow.  Any ideas on how to fix it?  Anything, please...this baby is my pride and joy.
Best Regards,
Ian Mittelberg
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Somewhere a True Believer is training to kill you. He is training is austere conditions with minimal food and water. He doesn't worry about what workout to do.his ruck weighs what it weighs and his runs end when the enemy stops chasing him. Only he knows the cause. Still want to Quit?
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Offline El Destructo

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Re: Vertical crack?
« Reply #1 on: April 02, 2009, 08:28:43 pm »
Pictures.......
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Offline M-P

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Re: Vertical crack?
« Reply #2 on: April 02, 2009, 09:46:05 pm »
Ian,  By vertical I assume you mean running the long ways down  the back.  Pictures would help and might help identify the cause.  In the mean time, consider wrapping the area with thread or rawhide.  I would especially wrap it if it start at, or is running toward a edge or into the fade out.  In fact it wouldn't hurt to apply a rawhide patch on the back and then wrap the whole area with thread, for extra securtiy.     Ron
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Offline 0209

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Re: Vertical crack?
« Reply #3 on: April 02, 2009, 11:29:31 pm »
I've wrapped it with leather string tightly and filled the entire crack with superglue.  I was thinking that maybe sinew would be the answer but I haven't any nor do I have any hide glue.  So I figured the leather would work.  I don't have any rawhide either.  I'l try and get some pictures up tomorrow as my camera has no batteries right now and I can't seem to find any around the house.  Thanks for all the help thus far and I hope more help comes.
-Ian Mittelberg
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Somewhere a True Believer is training to kill you. He is training is austere conditions with minimal food and water. He doesn't worry about what workout to do.his ruck weighs what it weighs and his runs end when the enemy stops chasing him. Only he knows the cause. Still want to Quit?
-Unknown

Offline Pappy

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Re: Vertical crack?
« Reply #4 on: April 03, 2009, 06:22:47 am »
Pictures would be nice but if it is running length wise on the limb and don't run off the
edge it probably won't give any trouble.We will wait on pictures. :)
   Pappy
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Offline recurve shooter

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Re: Vertical crack?
« Reply #5 on: April 03, 2009, 10:45:45 pm »
i have had simmilar problems with a hickory backed osage, but the crack was on the belly. here's what i did.

put tite bond in the crack
secure end of long piece of artificial sinue in vice or tied off to a limb or something.
tie the other end to the bow above the crack
pull against your tie off point to get the sinue REALLY taunt
turn the bow to wrap all the way over the crack, VERRY tightley.

that should hold it well. if it makes you feel better, kind of paint TB on over the wraped sinue for extra securitie. hope you get it fixed up pal.
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Offline 0209

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Re: Vertical crack?
« Reply #6 on: April 04, 2009, 02:38:16 am »
Well,
Still don't have any batteries for the camera, but what I tried is taking a fiberglass mat (I know its not trad but its all I have) and some epoxy and wrapping it tightly over the crack.  Once it dries, I'll put the leather wrap over it to cover up the fiberglass and hopefully that ought to solve my little dilemma.  Thanks for all the help fellas.
-Ian Mittelberg
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Somewhere a True Believer is training to kill you. He is training is austere conditions with minimal food and water. He doesn't worry about what workout to do.his ruck weighs what it weighs and his runs end when the enemy stops chasing him. Only he knows the cause. Still want to Quit?
-Unknown

Offline M-P

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Re: Vertical crack?
« Reply #7 on: April 04, 2009, 01:45:26 pm »
Ian,   I'd say "FOR Shame!" ,but only because I think rawhide & / or a thread wrap would have worked as well and been more in line with my taste.   But, fiber glass reinforced epoxy should work well to resolve the problem.   Ron
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"A man should make his own arrows."   Omaha proverb   

"There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves."    Will Rogers

nickf

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Re: Vertical crack?
« Reply #8 on: April 04, 2009, 06:10:41 pm »
I've had several bows with cracks and checks along the grain, and didn't even bother to fill them with glue. They're still holding up fine.

Nick
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Offline 0209

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Re: Vertical crack?
« Reply #9 on: April 05, 2009, 02:15:13 am »
Well guys,
It doesn't matter anymore, pulled her back today and she exploded into two seperate pieces, right at the crack.  Who knows, can't really study the crack since I beat it against a steel pole right after the break so it's really un-studiable.  Anyways, I'm pissed but hey, nothing you can do about it now right.  Thank you for your help in this ordeal and hopefully next time, it'll turn out better.
Best Regards-
Ian
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Somewhere a True Believer is training to kill you. He is training is austere conditions with minimal food and water. He doesn't worry about what workout to do.his ruck weighs what it weighs and his runs end when the enemy stops chasing him. Only he knows the cause. Still want to Quit?
-Unknown

Offline Pat B

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Re: Vertical crack?
« Reply #10 on: April 05, 2009, 11:41:49 am »
By destroying the evidence you have eliminated a valuable source of information that could help you avoid the problem the next time. You are only dealing with a few pieces of wood and grass and not the destruction of mankind. ;)   If you take these failures as a chance to learn something your bow building will improve. If you consider as a personal failure, that is exactly what it will be!!!
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Offline recurve shooter

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Re: Vertical crack?
« Reply #11 on: April 05, 2009, 11:44:26 am »
i know the feeling all to well man. maby it will turn out better next time.
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Offline M-P

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Re: Vertical crack?
« Reply #12 on: April 05, 2009, 09:15:28 pm »
Damned shame.  Better results with the next!   I've been there and share your frustration.   Ron
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"A man should make his own arrows."   Omaha proverb   

"There are three kinds of men. The one that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves."    Will Rogers

Offline 0209

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Re: Vertical crack?
« Reply #13 on: April 05, 2009, 11:32:28 pm »
I did study it before I beat it.  Broke right at the vertical crack and from there it followed the grain until it ran out the belly on the osage.  I'll try and recreate a pic using the computer.  Here goes:
     I       /I
     I      / I   B
 B  I      / I   E
 A  I     /  I   L
 C  I    /   I   L
 K  I   /    I   Y
     I  /     I
     I /      I
     I/       I

Hopefully this diagram shows what happened.  The slashes are the break and it started from the vertical crack on the back of the bow.  So, assess what you will from this, as it is clueless to me.  Thanks for all the help.
Best Regards-
Ian Mittelberg
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Somewhere a True Believer is training to kill you. He is training is austere conditions with minimal food and water. He doesn't worry about what workout to do.his ruck weighs what it weighs and his runs end when the enemy stops chasing him. Only he knows the cause. Still want to Quit?
-Unknown

Offline sailordad

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Re: Vertical crack?
« Reply #14 on: April 06, 2009, 12:25:23 am »
well kind of a modern crude diagram,but i would say grain runoff
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