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Main Boards => The Bowyer's Bench => Topic started by: simk on January 05, 2024, 10:16:27 AM
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Idk if this can be called a Hornbow - maybe in the wider sense 😀 but it's a project I have been carrying around with me for a while now, still a concept bow - prototype no2. A longbow according to the IAAF rules - 40# @ 28" - 63.5 ntn - Bamboo - maple - yew - horn. I'm pretty happy with this one, one of the faster bows I've built so far. 211fps/7gpp. Call it a successful experiment.
Happy new Year everybody!
EDIT:
I will call it ASL-semi-hornbow (ASLSH)
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https://www.youtube.com/watch?v=ulOxAQs5uKE
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Wow! Is that dark horn material on the belly with a V splice on each end? I will be curious how long that holds up. Never seen anything like it. :thumbsup:
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thanks Kirk! Yes, that's the big question :smileystooges: for my liking especially that splice towards the fades is a little close to that bending zone - will move it an inch or so on the next one. Lets see what happens with this one :archer2:
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Interesting build, good looker , pretty cool :thumbsup:
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Nice work :thumbsup:
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One of a kind for sure, trying something new and experimental. Way to go! And nice work.
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One of my Tn. Classic buddy's made a glass backed and horn belly a few years ago.
James Parker
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Simk
Horn is defiantly better than belly glass, should be a fast shooter. :thumbsup:
EDIT I guess I did not understand, NO glass ? :knothead:
Nice work
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Cool horn belly bow. :thumbsup: Will you post a profile full draw pic?
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Good looking rig, what's the conn rod out of?
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thanx guys. I'm stoked with that combo. I made horn/wood/sinew composites - its different without the sinew. this one after shooting just springs back in its full reflex whereas the horn/sinew composite takes a good while and creep back slowly. a sinew- glue-layer also is pretty heavy in mass. this one holds maybe 3 3/4" of Reflex. Obviously it was only roughly tillered, just by looking at it at brace and pulling in hand. Good to have this pic PatB so I can retiller that top limb a little.
cheers
crooked stic: conn rod? i dont get it
mad max: I think I saw asian bowmakers make asiatic bows that way, calling them hybrids. It obviously must work. problem is that you might get a 20" hornstrip if you are lucky and its more work to to aquire and make...but horn is cool stuff when wood gets too weak...it works just perfect.
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What kind of taper rate are you running in the core?
She’s coming off the fades a bit hard right where that V splice is located. You may want to use a little more forward taper, and add a power lam to get that bend a bit further out on the next one. Kirk
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thanks for friendly asessment Kirkil (-; this one has a parallel midlam and - the only taper comes from the tapered bamboo and the pyramid shape. when it comes out of the form it bends too much out of the fades then I move the bend outwards towards the middle of the hornplate. I like the lower limb - its just what I want to see. But I will move the splice some more towards the grip. now the splice ends with the powerlam. thats too close, does not feeel comfortable. Simon
Edit: the first one I made was a full horn bellied (spliced horns), used same taper as always with the woodies, came out totally whip tillered, unlike a wooden bow. strange. finally tillered it and it was bending very evenly towards the outers. It showed bad handshock and bad cast. felt wobbly.
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simk
It was a short bow so he had plenty :thumbsup:
He makes a lot of Glass horn bows replica's .
And Horn bows also.
Bamboo back and belly bows (BBB)
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Despite being very lazy on that winter sunday I did sand a little on that top limb - maybe cost me 1 or max. 2 pounds. Even though self-praise stinks it looks pretty much perfect to me now for a horn-bellied bow. One major factor for the improvements seems to be a better leveled angle for the pic! The other one was taken a little from below....
cheers
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Idk if this can be called a Hornbow - maybe in the wider sense 😀 but it's a project I have been carrying around with me for a while now, still a concept bow - prototype no2.
Beautiful work, as always Simon. Very interesting idea to replace the heavily worked belly wood with some tougher horn. How did you glue the horn into the lam, hide glue? The tiller looks fantastic in the last pic you posted.
EDIT I guess I did not understand, NO glass ? :knothead:
Horn is less stiff than most of our bow woods (probably pretty close to the yew that Simon used on the belly here) so the bamboo backing is lots to match with it, no FG required and much lighter limbs overall.
Mark
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Why is a Horn bow made with horn instead of wood, besides the fact that it's made from horn ?
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Thanks Mark!
Not sure if I got your question right MadMax...?: Because I couldn't achieve the same results with wood. Wood wouldn't retain reflex the same - it would take set at these specs and that tiller - I couldn't get that same performance out of it - at least I think so.
cheers
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Thanks Mark!
Not sure if I got your question right MadMax...?: Because I couldn't achieve the same results with wood. Wood wouldn't retain reflex the same - it would take set at these specs and that tiller - I couldn't get that same performance out of it - at least I think so.
cheers
:thumbsup:
That question was for mmattockx :)
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simk
I don't know how much you know about using horn for the belly :dunno:
I know a little about Horn bow making.
where the two pieces of horn butt together in the center of the handle there needs to be some kind of HARD dam (Bone/Ivory) to stop the horn from migrating into each other.
I hope this bow holds up for you and the wood V splice does the job. :thumbsup:
(https://i.imgur.com/mnypHZ9.jpg)
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thank you MadMax - the so called "Celik" between the horn plates only has aesthtical reasons - at least if you read about in the holy book by A. Karpovitz. I have successsfully made a few atyptical hornbows without that gimmick and did not have problems. As already stated, my V-Splice in this case should better be an inch or so closer to the handle. This is a second prototype and learning object - I always follow the try and error method - she's my best teacher :) Basically I still believe in the concept. My bow now goes to the archery club to be tortured by the whole crew and end speculations. Cheers
Edit (for better understanding): Karpovitz explains as follows: "basically the horn does not know that the bending zones are working so hard and simply remains idle in its place"
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Why is a Horn bow made with horn instead of wood, besides the fact that it's made from horn ?
The typical type of horn bow where the back is sinew covered and the belly is horn is done because those materials can take much more strain than wood can, so you can make a more extreme bow that stores more energy than a plain wood bow and has higher performance.
Mark
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Where do you obtain hor material in long lengths like that? and What type of horns are used. Ive always een fascinated with horn bows, and the wild shapes they can be manipulated into under pressure and still maintain torsional stability. Some of those things would be a nightmare to get a string on them. :o :o
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Cape Buffalo
25" long pieces is about as long as you can get
I can't find the guy on F book
etsy has some
https://www.etsy.com/listing/806866450/horn-bow-and-water-buffalo-horn-long-bow?click_key=b2aac23f404539a5fc85d1bddc58232ba4381d26%3A806866450&click_sum=ef4a3483&external=1&rec_type=ss&ref=landingpage_similar_listing_top-2&variation0=2937455244&variation1=2937455232
Big horn sheep can be used too
Indian Sheepeater bow
(https://i.imgur.com/krj5F3i.jpg)
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I have much admiration for the bowyers who glue together 3 or 5 pieces of wood, then after shaping that assembly they apply horn and sinew (let that sinew dry for few weeks or months) to produce a world class bow with basic hand tools. Amazing patience and craftsmanship!
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Hi Kirk,
...getting my hornstuff from Nick Nguyen for years now (find him on facebook). Very reliable supplier. He runs a big Waterbuffalo Farm in Vietnam where they are crafting all sorts of things from horn (look up pufacraft). You also get flattened and hot pressed hornstrips that are easy to work with. It's much cheaper than the etsy stuff also. To get what you want its very important to make very clear what you want, then you get what you want.
Cheers
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Hi Kirk,
...getting my hornstuff from Nick Nguyen for years now (find him on facebook). Very reliable supplier. He runs a big Waterbuffalo Farm in Vietnam where they are crafting all sorts of things from horn (look up pufacraft). You also get flattened and hot pressed hornstrips that are easy to work with. It's much cheaper than the etsy stuff also. To get what you want its very important to make very clear what you want, then you get what you want.
Cheers
That is the guy on F book :thumbsup: