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Recurving osage questions
bradsmith2010:
I think its not the best glue for that,,
sleek:
--- Quote from: bradsmith2010 on April 19, 2023, 07:39:35 pm ---I think its not the best glue for that,,
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Well, I just glued a bamboo backing to it and plan to put a belly laminate on it to double reinforce it. Hopefully that will lock it place. For future reference, what glue do you feel would be best?
sleek:
--- Quote from: superdav95 on April 18, 2023, 11:47:13 pm ---
--- Quote from: sleek on April 18, 2023, 09:00:24 pm ---
--- Quote from: superdav95 on April 18, 2023, 07:59:49 pm ---
--- Quote from: Pat B on April 18, 2023, 06:35:42 pm ---If you want a very dramatic bend on any wood bow one option would be to add a saiyah (sp) to each limb tip like on an Asiatic horn bow.
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Great idea Pat. It’s a great strong solution to get some serious recurve. The v notch glue up is quite strong.
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I wish I could be convinced of the v notches. I had one delaminate today that I made yesterday with tight bond 2. Also, I'm trying to make them light as possible and I don't think Siyahs give you any weight advantage? But... I reserve the right to be wrong there.
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Not to knock tb glue as I use it for lots of things. I just don’t use it for my v notches. I use good quality hide glue or epoxy 2 part resin depending on the build. For more primitive natural material builds I’ll stick with hide glue. I’ve never had one come apart yet. I make a good 3.5”-4” long v notch and groove up the mating wood surfaces. The hide glue is super good in these scenarios. For a little insurance you could use binding thread around it even if concerned about the joint. Ea 40 has worked for me in the past with v notches. I’ve heard tell guys using other glue successfully like west systems and system three g2 to name a couple. Best of luck to ya on your decision.
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How long do you let the hide glue set? Where is EA40 found?
bjrogg:
--- Quote from: Pat B on April 18, 2023, 06:35:42 pm ---If you want a very dramatic bend on any wood bow one option would be to add a saiyah (sp) to each limb tip like on an Asiatic horn bow.
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My first thought was this. Sounds like you are working on it and have lots of good advice already. Look forward to seeing what you are up to sleek.
Bjrogg
Mo_coon-catcher:
Another option is to kerf the limb so you are bending 3 thin pieces of wood instead of one thick one. Cut a slice separating back from belly and cut a shim to fill in the material removed. Slip the shin in and heat bend it all in one go. Once it sets pull the shim, apply a healthy coat of glue and reinsert. Then back in the form so it’ll be sure to set into position.if the layers are thin enough you could probably get away with not even heating it and let the glue hold it in place.
Kyle
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