Primitive Archer
Main Discussion Area => Bows => Topic started by: upstatenybowyer on October 20, 2017, 03:38:36 pm
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This bow is definitely at my limit for poundage. I can only shoot it for about 3 rounds of 12 arrows until I need a break. )F(
Anyway, It's Black Locust, about 70/30 sapwood to heartwood ratio. I'm sure it would perform better if were all heartwood, but I'm happy with the way it draws, shoots and feels in the hand.
It has a slight natural deflex with about .5" of set. The hooks were steamed in, gone over with a heat gun, and reinforced with osage underlays. The overlays are osage as well.
It has a thin piece of yew on the handle, which I added cause it was bending a bit too much in the handle.
64.5" ttt, running parallel at 1.25" to mid-limb, then tapering down to 3/8" at the tips.
Sheepshead skin accents
thread-wrapped with bow string material
rawhide wrapped at the handle
70# at 27"
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Sweet! I always heard you had to ditch the sapwood. Then one wise man pointed out the further down you go in the sapwood the more like heartwood it becomes, as it has already started to change. That got me started on the small locust staves I had and they turned out fine, sapwood and all. I would say you have made a efficient bow here. Making the most of what you are working with
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I like it! That's some good weight out of that width for black locust.
I'm hoping to make a black locust static at the weight for myself in the near future. What sort of performance are you getting out of it?
Kyle
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Very nice, I like the idea with the power lam stiffener !
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Very nice looking bow
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Thanks gents. Yeah Chuck, I read that same thing about the deeper sapwood. I actually made a bow from the heartwood beneath this stave. I was originally gonna cut up the wood this bow is made from for kindling, but I saw a bow in it so I gave it a shot.
Mo, I wish I had a Chrony. I have been pretty good this year, so maybe Santa will find it in his big jolly heart to leave me one under the tree. O:) It definitely hits hard and I can't feel any hand shock.
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that bow is sweet!!! How do you get a perfect fit on the static overlays?
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Nice work, Jeff. Your tiller looks very good.
Well, what I've learned about statics:
> there shold be a string lift off at about the last 10" of draw to get the advantage of a lever (otherwise only addy mass)
> so make the bow as short as possible
> lever angle of about 60° is a good idea, more prevents lift off
> excessive length of levers makes no sense (thanks Marc, I watched your bows and learned a lot)
this are my thoughts about selfbows, not hornbows!
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Cool bow, I was going to say I'd like to see it drawn another few inches to get the string lifting off the levers but Simson beat me to it :)
Del
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Nice bow Jeff.
I agree with simson about the angle and length of static tips.A good 40 to 50 degrees is usually enough to do the job.
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Thank you guys very much for your insight! This is why I post bows... to learn.
Simson, I totally get it. I can see from the FD pic the string is not lifting off those hooks. Think if I shorten them up a bit it will make a difference?
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Cool bow, Upstate. :OK
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Very Nice! Loving the accents.
I have thought about doing a handle reinforcement like that on a bendy. How's it holding up and how did you glue it on? did you have to go completely flat and remove even more of the belly to get a good glue line?
Completely agree on the learning. I been at it 5 years or so and feel like a novice still.
Just might learn another tip right here.
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Those are some serious hooks! Pretty good draw weight on a narrow (for bl) stave. But as Simon and Del say, it is more efficient if the string comes off at the last part of the draw. You can shorten them a bit and maybe heat them slightly to reduce the angle?
I just bent one hook of another black locust myself. I love how springy black locust feels!
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Those are some serious hooks! Pretty good draw weight on a narrow (for bl) stave. But as Simon and Del say, it is more efficient if the string comes off at the last part of the draw. You can shorten them a bit and maybe heat them slightly to reduce the angle?
I just bent one hook of another black locust myself. I love how springy black locust feels!
Mmh, sorry to disagree Leon, Jeff had underlays glued on. Applying heat there would attack the glue joint. Making them a bit shorter will be saving mass. Best would be learn to draw that thing a bit further like Del suggested.
Anyways, if you decide to shorten the hooks, try to get it chronoed before and after.
And make another BL bow, shorter but wider limbs and shorter hooks with 50 -60° angle and you will see the difference in performance.
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DuBois, the handle glue up wasn't perfectly flat against flat, but I used epoxy to fill gaps and since the whole section is wrapped with rawhide and hide glue I don't expect the yew will popping off. Thanks for checking it out!
I hear ya loud and clear Simson. Can't tell ya how much I appreciate the honest feedback. ;)
Thanks for chiming in Pat and Leon. )P(
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Very interesting the way it's put together. Really like the recurve overlay work.
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Very very nice. Love the bend in the handle
Chuck
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Very very nice. Love the bend in the handle
Chuck
Thanks a bunch Chuck! There's a lot I like about this bow, just a few quirks with the design. Glad I posted it cause I never would have learned the valuable info above.
Cheers!
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Great advice given. Always learning something following posts like this. Nice work upstate