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Offline JoJoDapyro

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Osage project
« on: July 19, 2014, 06:30:57 pm »
I am starting to work on the Osage stave I got from Fred Arnold. It has some natural reflex, and that I like. It also isn't as straight as I would like, but it will give me a good challenge. In the attached picture you can see that it bends at both ends a little bit. I need to straighten it, how would you go about doing that? Thanks for all the free lessons. This is really quite fun, Lots of new things to learn!
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If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline Fred Arnold

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Re: Osage project
« Reply #1 on: July 19, 2014, 07:59:32 pm »
Joe, If that's the one I'm thinking of it's fairly flat on the back and you should be able to just clamp it belly up to the narrow side of a 2 x4 and apply dry heat. It's a pretty easy fix. Shouldn't have to get it that hot and just leave clamped until it cools. It might take a couple sessions.
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I found many years ago that it is much easier and more rewarding working with those that don't know anything than those that know it all.

Offline JoJoDapyro

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Re: Osage project
« Reply #2 on: July 19, 2014, 08:15:39 pm »
So just clamp it to the 2x4 straight and heat it? I like the deflex, just need to work the stave to line up the tips and handle. It is only out about an inch.
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If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline burchett.donald

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Re: Osage project
« Reply #3 on: July 19, 2014, 08:34:22 pm »
Jojo I usually clamp a 50% correction...In other words place the stave on your caul or board and clamp the center...Look at limb tips and if they are 1 inch right of center then move 1/2 inch left of center as I heat and clamp...Allow to cool and recheck alignment...
                                                                                                      Don
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Genesis 27:3 Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison;

Offline Fred Arnold

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Re: Osage project
« Reply #4 on: July 19, 2014, 08:45:57 pm »
I agree if you have a caul, otherwise just build up the center of the bows handle area on the 2x so that you're not losing any of the reflex when you clamp it down.
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I found many years ago that it is much easier and more rewarding working with those that don't know anything than those that know it all.

Offline JoJoDapyro

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Re: Osage project
« Reply #5 on: July 19, 2014, 09:39:57 pm »
Should I reduce the limbs to avoid breaking the stave?
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If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline burchett.donald

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Re: Osage project
« Reply #6 on: July 20, 2014, 01:49:34 am »
Jojo, I think your limbs are thin enough from the pictures...Do some research on heat bending and cauls...Osage lends itself to bending well with heat ;) You can build a caul but in a pinch you can place something between the handle and a flat board as Fred said, then bend the tips down in correction and allow to cool...I personally use dry heat with Osage from a heat gun...Here's some pics of start and finish...Notice the bow back to flat after tillering...Some areas of the limb were over 1/2 inch thick while heating...
                                                                                                                  Don
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Genesis 27:3 Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison;

Offline Akteacher

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Re: Osage project
« Reply #7 on: July 20, 2014, 06:30:35 am »
What did the bottom bow turn out to be?  I like the simple, clean lines/profile.
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Offline JoJoDapyro

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Re: Osage project
« Reply #8 on: July 20, 2014, 11:20:05 am »
Just to be sure that you are all picking up what I am throwing down. This photo is of the back of the stave. Here is the same photo showing what I would like to do. Thanks again.
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If you always do what you always did you'll always get what you always got.
27 inch draw, right handed. Bow building and Knapping.

Offline burchett.donald

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Re: Osage project
« Reply #9 on: July 20, 2014, 03:31:56 pm »
 Yes, that's very doable...
                                       Don
                                                                                                                                 
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Genesis 27:3 Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison;

Offline Blaflair2

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Re: Osage project
« Reply #10 on: July 20, 2014, 04:09:59 pm »
I'd screw two 2x6 together in an l shape. Put blocks on the tips holding it away from the wall of the L shape and heat and clamp the center, bringing into alignment. I'd go for a little more than u need for it to be straight because it will bend back a little
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Offline Crogacht

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Re: Osage project
« Reply #11 on: July 20, 2014, 05:55:29 pm »
Quote from: JoJoDapyro on July 20, 2014, 11:20:05 am
Just to be sure that you are all picking up what I am throwing down. This photo is of the back of the stave. Here is the same photo showing what I would like to do. Thanks again.

Shouldn't be too hard.

I laterally corrected an elm stave that was worse than that, but elm might take heat better than osage, I'm not sure.

http://www.primitivearcher.com/smf/index.php/topic,46204.0.html

I ended up with a small crack in the handle because I didn't heat a long enough section of limb. The part that didn't get much heat cracked. But it was a stiff handle so wouldn't have affected anything, in fact it was almost gone by the end. The bow broke mid limb because I was stupid, but not because of the heating or bending :P
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