Author Topic: Chrysal or crack  (Read 15419 times)

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Offline DC

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Chrysal or crack
« on: February 25, 2015, 08:45:52 pm »
This never showed itself until the second coat of tung oil. It's on the belly. Unfortunately being freshly sanded I can't feel any lump. I'm hoping that it's a leftover crack from bending the recurves. The little knot above the crack is the same knot in the other picture. The crack is just outboard of the knot. After I saw it I put it on the tree and pulled it 40-50 times and still can't feel a lump. Any prognosis? Is it a wall hanger?

Offline mwosborn

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Re: Chrysal or crack
« Reply #1 on: February 25, 2015, 08:48:32 pm »
Looks like a chrysal to me.  Sorry!  Most likely the "beginning of the end" - but I have a couple that I have shot for quite a while with a belly chrysal.
Enjoy the hunt!  Mitch

Offline huisme

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Re: Chrysal or crack
« Reply #2 on: February 25, 2015, 08:59:26 pm »
I'm of the opposite opinion; chrysalis are usually a lighter color than the surrounding wood.
50#@26"
Black locust. Black locust everywhere.
Mollegabets all day long.
Might as well make them short, save some wood to keep warm.

Offline PatM

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Re: Chrysal or crack
« Reply #3 on: February 25, 2015, 09:07:39 pm »
What was your heat source?

Offline half eye

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Re: Chrysal or crack
« Reply #4 on: February 25, 2015, 09:09:55 pm »
DC,
    Looks like the knot is on the inside radius of your recurve, I surmise that you have a fracture cause on the belly when you bent in your recurved tips. Even though it's on the belly it looks like a tension fracture to me. just one guys opinion though
rich

Offline soy

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Re: Chrysal or crack
« Reply #5 on: February 25, 2015, 09:11:01 pm »
Stress crack from reflexing imho
Is this bow making a sickness? or the cure...

Offline DC

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Re: Chrysal or crack
« Reply #6 on: February 25, 2015, 09:15:02 pm »
Steam when I bent it but the limbs were at least 3/4" thick when I did it. I know now that that was a mistake. It did crack and split quite a bit, I thought I had tillered most of it off. It's been fairly heavily heat treated since to get the recurves to stay in. I knew I was in over my head but it turned out great but for this.

Offline DC

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Re: Chrysal or crack
« Reply #7 on: February 25, 2015, 09:20:19 pm »
The red arrow points at the crack. I'm optomistic, I'll call it a crack :D

Offline IndianKid

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Re: Chrysal or crack
« Reply #8 on: February 25, 2015, 09:24:49 pm »
It kinda looks like the hairline Crack I got from bending my tips back,
although a bit longer. I think I know what I did wrong because my
last bow went smoothly. I don't think the first one i did was steamed well enough.
The wood cools on the exterior much quicker than the inside of the limb
and if I took a little too long on the form than it was just too
much for the cooled section. .. when I did my second bow,
my new steam setup was much more effective...

I inspected my hairline cracks with the limb un strung and again at 29"
on the tiller tree.. there was zero movement at it, I still call it a bow...

Offline half eye

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Re: Chrysal or crack
« Reply #9 on: February 25, 2015, 09:25:45 pm »
I believe that if you clean it a little and flood with thin superglue you MAY be good. Thats because it will be in compression for the rest of it's life. If you do it now you might save the bow in the long run. Again just my opinion
rich

Offline Gordon

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Re: Chrysal or crack
« Reply #10 on: February 25, 2015, 09:28:38 pm »
Not likely to be a chrysal in that part of the limb. Most likely a tension fracture during bending. Do what Half Eye suggests and then wrap it.
Gordon

Offline mwosborn

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Re: Chrysal or crack
« Reply #11 on: February 25, 2015, 09:34:09 pm »
Here is a picture of a chrysal on one of the first bows I made as a comparison.  It looked to me like the "crack" was below the area that you recurved.  Could be a crack - but if it below where you recurved the tip, you can't feel it, and it doesn't open up when you stress it, I am sticking with chrysal.  BWTH do I know?   ???

« Last Edit: February 25, 2015, 10:06:29 pm by mwosborn »
Enjoy the hunt!  Mitch

Offline PatM

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Re: Chrysal or crack
« Reply #12 on: February 25, 2015, 09:41:42 pm »
  I would pint to the dry heat as the cause. Did you have the bow on a caul when you heated it?

Offline alwayslookin

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Re: Chrysal or crack
« Reply #13 on: February 25, 2015, 09:44:16 pm »
Looks like the same Crack I got when I heated and bent mine too fast. Not saying you did this but looks identical to mine.
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Offline missilemaster

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Re: Chrysal or crack
« Reply #14 on: February 25, 2015, 09:46:49 pm »
looks like a crack to me , not a chrysall.
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