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The Mechanics of Limb Twisting Explained - An Experiment

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coyote1956:
ttt good post and info, just found it, Ken

IndianKid:
I love this thread, every time I get confused I revisit it! My mental dexterity is shot,
and sometimes I have an awful tough time seeing my bow limb twist a little on the tillering tree and
for the sake of all that's holy wish I could keep it in my mind, what the dang thick side is !!

So, for once and all, to be 100% sure...

When my straight stick with no propeller gets a little twisty as the string is pulled
down on the tree (belly pointed down, back is up), is it safe to say that the the edge thats
higher is the thick side ???

Cleaning up and putting the bendy stick away till i know Im not making it worse!

crooketarrow:
 Like GEORGE said we builld wood self bows not FG bows. Where a stwist or knot means something to the man thats made it.

 I use'lly do not have that problem to much. I pick good staves but I know eveyone can't do this.
 As long as the swist is'nt to bad. I correct by removeing wood from the strong side. or if it's a little worse. When I cut in the nock I'll leave the strong side hight high in the string gruve.

  If it's any worse than that since I don't heat moveing parts. I'll find another stave.  Heating a bow 10 times might make the profile look good. But it won't stay there with any time. Every time woods heated it changes cell strucker at that spot. If it's at a stress spot it won't stay very long at the spot where you bent it.

  Even hard woods like osage that takes heat well. The bows still not as good as it could be.

 I'm not say you have'nt built a nice looking bow you have. A slower process you could do the same with out heat. I just ruff out to bow form green and put in a caul while still green. With a 2 2 1/2 inch reflex added. I can keep most of my bows to 1/2 reflex to straight to 1/2 string follow.

  NO HEAT.

CROOTETARROW BUILT SELFBOWS FOR OVER 50 YEARS. The last 20 he did like this. YOU CAN'T BUILD A BETTER SELF BOW FOR EXDURANCE.

  I have 3 personal bows14,17,18 years old. Built like this I've retired, I shoot now and then. There the same as when they were built. They had at least 50 to 100,000 shots through them.

PatM:
If you change the shape of the bow while green you're changing the structure too.
 Heat is fine. We have heated bows shooting just fine years and thousands of shots later as well.

IndianKid:
pat, the bow isnt green.. 

crooketarrow
you remove wood from the strong side, which side of the limb is that (Higer or lower) ?

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