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Main Boards => The Bowyer's Bench => Topic started by: Lazyeye506 on February 16, 2017, 11:26:00 PM
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Hello all
I am thinking of making a bow similar to this one
http://www.cinnabarbow.com/marinerbows/kaiyuan/mmexport1438094594021.jpg
I shot my friend's and it was extremely fast for the poundage and an all around pleasure to shoot.
My question is this: has anyone here ever tried to make a riser that has reflex in the fade? I imagine making one is pretty similar to making one with deflex, just in the opposite direction. Any pointers for this?
As for the siyahs, I am also trying to think of appropriate woods for that. I'm going to need something that is light and rigid which can withstand the stress without splitting. I am thinking padauk since I have some lying around and its properties seem to be close to what I am looking for, can anyone recommend something lighter for better efficiency?
Thanks!
Mark
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Reflexed risers are easy.
Since you're going to do the siyahs "under glass", the wood type isn't nearly as critical -- it really just folds the glass apart. Padauk is 'way too heavy for siyahs -- you want light and strong like Ash or even oak
I've made more than a dozen Asian style bows -- wood-glass composites, wood-wood composites and bamboo-wood composites, and almost always use Ash or Oak for the siyahs.
It's the direction of the grain run that's important; ideally curved grain following the curves of the siyahs.
You could lay up siyahs on a jig, using short lengths of "normal" bow laminations; cut them, shape them, and then add them to the rest of the glue-up. I've done that a few times. Won't work well with a modern, fancy pressure hose set-up because it requires two or more trips under pressure.
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Is that bow Fiberglass?
You can copy it if it is.
Put a strip of tape down the limb and draw a line every inch.
Measure taper rate and limb width.
With a pair of dial calipers you can measure the fades and the whole riser per inch.
I have tried making some like that.
I guess I could buy one.
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Thanks for the wood selection advice Ken. I am a pretty novice woodworker so my knowledge of wood properties is limited. I'll look for some good ash. How did the wood-wood composites work out? I always marvel at how short some of the working limbs of these bows are.
Yes that is a glass bow Max, I was going to measure my friend's and make a few small tweaks to it so it isn't a 1:1 rip-off of this bow. The working limbs on it are about 10 inches each, about 2 inches wide, but they are quite thin and bend eye-brow raisingly far with those long siyahs.
It would probably be a lot more sensible to just buy one, but I've never been sensible :)