Main Discussion Area > Horn Bows
My horn bow build-a-long
DC:
I think I'm alright. At least enough to not tear it apart. This one is just a learning experience although I have to keep telling myself that. It's not the first mistake. What amazed me is the thinness of the wood. There's hardly any in there.
gorazd:
I would wait two weeks for sinew layer to dry then take measurement down to 0,1mm and sand the sinew layers - to equalise on both sides before starting with new layer.
Then next layer.
Try it korean style - put on layers in gelled state - then wet the layer and heat it with hair dryer - to get them in semi liquid state when they are on the bow already . You have more control how much sinew is added on each side.
DC:
It looks a lot better this morning. I think clamping it to the frame let the sinew settle into the position I wanted rather than just any old place. We got hit with cold(ish) dry air from the interior so the shop, once it's heated, is 25-30%RH. It was 50°f and 35%RH in there this morning. I'll boil a kettle or two in there to moisten it up a bit but that doesn't last. It is what it is, I guess. It's freezing outside right now so I don't want to put it out there. The sinew is drying amazingly fast but I'll still wait a few weeks before I do the next layer.
MattZA:
That's looking really great, DC!
Amazing how clamping it to the form like that has just convinced the sinew to do as it's told. It really is like a living backing.
bownarra:
--- Quote from: sleek on October 09, 2019, 04:42:24 pm ---Maybe as it's not reflexing as much, it will balance out when drawn. As the thinner limb comes around more just to make brace, the extra energy in the weaker limb may pull the stiffer limb back, continuing all the way to full draw until it's got a balanced full draw profile. I know I have read lots where heat is used to balance the limbs out on occasion as well. You may also get away with laying a little extra sinew on the weaker limb to strengthen it?
--- End quote ---
No they need to be the same it won't balance out when you draw it.
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