Primitive Archer
Main Discussion Area => Bows => Topic started by: bow101 on September 21, 2014, 10:57:58 pm
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This is the latest lam I've done. Almost finished just have to shoot 'er in and hopefully with luck put a finish on it. 63" NTN about 48-52# @27" a little under 1 1/2" width at the fades. It has a 20" white oak 1/8" Power Lam between both lams. 3" glues in reflex.
Still have to get a better full draw pic the computer or something acting up and cutting off the bottom of some photos. As you can see from the shavings the glue went quite well on this one. Comments welcome.
PS. someone tell me more about String follow and Set I know this subject has come up a millions times. Anyway this bow lost 1/2" of reflex on the tips after tiller and took set of 1/2" in the mid limbs to fade areas.....So is this a total of 1" of set or what. :-\
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The one on the left the other bow is an experiment. ;D
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Is it bending at all around that handle?
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Cut that handle back off and let her bend through, its going to pop off as is.
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No way that handle is gonna stay. Not even ductape would hold that sucker
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Cut that handle back off and let her bend through, its going to pop off as is.
It is bending in the area but very, very slight. Problem is I already narrowed the handle section for fit and cut in a small arrow shelf. ??? I pondered on that most of the day. If I take off the handle it may bend to much in the center and break. You still think its advisable :-\
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It wont stay put, I promise. Cut it off. If it appears to be bending too much in the middle afterwards, add a 18-20"long belly lam on center and stiffen it up.
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Pearly is telling you right. I would take another route if you have to have a handle. Stiffen it with the lam he described and then build it up with several decreasingly shorter thin laminates. Then you will have one that will last. Other than the handle issue, it looks like a cool bow to me.
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...... >:( oh well made fire wood again I tried taking off the handle and off came a huge chunk of the belly..... on to the next project.
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What did you go and do that fir?!?!?!?! You should have just rasped it off clean and easy. On to the next!
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Set is damage to the wood. String flow is the tips following the string when unstrung. A stave with two inches of reflex that loses one of those inches has one inch of set, one inch of reflex=no string follow. A bow that starts with one inch deflex and ends with one inch of deflex has no set, one inch of string follow.
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What did you go and do that fir?!?!?!?! You should have just rasped it off clean and easy. On to the next!
Yep I agree, I have to stay away from the chisels. :( I have other lams sitting and waiting.
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:( Part of it. I don't even hesitate anymore - just chunk it in the burn pile and grab another one.
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Seems like you might have saved it to make another bow like the one on the right...
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I'm getting to think more like Howard lately. Looked like it was bending good too.
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I like idea behind the bow what is the thickness of the back and belly lams? Looks like about 5/16 a piece?
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I like idea behind the bow what is the thickness of the back and belly lams? Looks like about 5/16 a piece?
I normally end up with a total thickness of 7/16" (approx.) using only 2 lams. Trilam would be better. This photo shows what I aim for when ripping the material. I use an open form with 3-4" blocks on the ends for the reflex. You have to grind down one of the lams so they will bend during glue up. This was the first one I built using a power lam.
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I agree a tri-lam would be better but, personally I like novel ways of building bows. My estimate was way off, I was looking at the 1/8" powerlam and trying to make out the thickness of the front and back in the middle of the bow. Any other specs you care to share would be great to know.