Primitive Archer
Main Discussion Area => Bows => Topic started by: gilbarbarian on January 26, 2010, 03:15:55 pm
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I am working on my first bow and it is worked down to a flatbow design made of osage with a twist in one limb. I was thinking of using a heat gun to work it out. Is there a method of bracing it or should I just heat it and over torque it? thanks jeff
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Depending on how much twist is in the limb it may straighten out just by stringing the bow. Pictures would help to see how much twist there is and at what stage you have the bow at.
Tell
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Is ti natural of man made? Jawge
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The twist is slight and I've just started tillering. I believe it is a natural twist. I tried to follow the grain. If I could figure out how to get my pictures frrom my desktop to this post I would post a pic. the pics are about 400KB
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I just straitened a yew California flat bow design this morning. It warped bad while drying and looked like it was strung sideways ( . I steamed each limb in a big pan. Lifted off the metal of the pan with a dowel of wood and covered with aluminum foil, and one at a time levered out the bend. So far the tips look to line up perfectly with the handle. Good luck.
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You'll probably need to resize you pictures to load them. Use whatever imaging program you have. In the tool bar somewhere there should be something like "image size" "resizing images" "websize image" or maybe just "save to web" I usual resize these i images to 8" wide. Make sure it's sized at a resolution of 72 pixels/inch.
I only know PhotoShop. But, others here might be able to help you more if you let us know what imaging program you have.
Now if you're having problems figuring out how to use the loading program on here, this might help you.
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Or you can go to photobucket .com and get a free account. When you post pictures from photobucket you dont need to resize them. Its done automatically.
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^ ^ ^ ^ that's what I do for mines... :) -josh
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or image shack,thats what i use and no account needed either
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I open my pictures with paint and resize them there. they usually are about 50-60kb.
Good luck.
Tell
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hope this works
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from those pictures the twist doesnt look to bad. I would continue tillering and see if the twist works itself out.
Tell
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Don't worry about it. But that lim looks stiff and unbending. Jawge
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So when I tiller I should just work the belly to make it bend the other way or tiller normally
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Lets see a picture of the whole Bow on the Tree...pulled to what you have had it worked to....so we can see where the Limbs are bending....and where they are not
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I'd say tiller normally. Remember to look at the tiller from both sides. Jawge
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here are some more. thanks for any advice
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I'd get it bending a bit more before I decided, but that's not too much twist. Some heat, a lever clamped to the limb and some weight should take care of it then. I had a stove pipe straight stave with natural reflex twist in opposite directions, once I got it to floor tiller. I clamped the handle in a vise and used a 24" quick clamp, a couple bungee cords hooked to the end of the rod, and a couple applications from a heat gun to get rid of the twist. You'd never know it was there when I finished. The nice thing about using the quick grip clamps was that you could easily see where you started, how much you counter twisted it, and where you ended up when it was cooled and unhooked from the bungees.
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Tiller it normal. That small amount of twist will probably not even be noticeable when the bow is tillered to your final draw length. Keep on going you barely got the limbs moving. Post pics as you go and we can help ya out.
Tell
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Not sure when to take it off the tillering string and put a real bowstring on it
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Get the near handle wood moving out to mid limb. Jawge
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keep going near the handle or the whole limb?
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Get the near handle wood moving out to mid limb. Jawge
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Yeah what Jawge and El D said.
You are on the right track though. Looking good.
Tell
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(http://i1007.photobucket.com/albums/af196/gilbarbarian/osagebow024.jpg)
(http://i1007.photobucket.com/albums/af196/gilbarbarian/osagebow023.jpg)
both sides, sorry for going slow. any more advice
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Looking better. I'll be back later. Make some nice black pencil lines at the end of the fades. Make sure the limbs are starting to bend there. Right limb needs more bending from the fades out to just before mid limb. Left limb about 6 inches from fades out to 6 in. I'll tell you how I determine the limb's readiness for the short string. Not time now. May be El can do the green lines. I can't. Gotta go. Jawge
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I agree Jawge...here is my Opinion...take it with a Grain of Salt....remove wood where I have the Arrows...all of these Lines and the Elipse should help you understand wh ;)y .......
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[IMG]http://i1007.photobucket.com/albums/af196/gilbarbarian/osagebow025.jpg[/IMG
I took some off the grip as well. do I still need more off per the previous post.
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(http://i1007.photobucket.com/albums/af196/gilbarbarian/osage%20bow/osagebow026.jpg) how is it so far and my hands say "am I done scraping yet"
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Not quite ready for that yet but too late. LOL. Lowere the brace and get the near handle wood moving more out to mid limb. Jawge
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(http://i1007.photobucket.com/albums/af196/gilbarbarian/osage%20bow/osagebow032.jpg) I think I'm done missed my weight though. shooting for 65# and i think it is aboult 50# @ 28". Now for the arrows. I got some poplar dowels at lowes. Any advice out there? About all I have is sandpaper. :-\
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Well looks pretty good to me. Especially for your first one. Check in the arrow section for questions on making arrows, they aint that hard. ;D
Tell
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Yep.... I think that you did a remarkable Job on that Tiller....... ;).........now it's on to the Next Bow....... >:D
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already started on the next. may need help on it too. it has a few knots, one in the handle area
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Got one more tip fer ya...when you use these Pictures as an Aid for Tillering....make sure that you are drawing the Bow evenly also...in this Picture...you are Anchored a bit too high...which will change the Look of the Bow at full draw....
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Looks very good. Nice job! Jawge