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Spine question
DC:
Mostly what I was after was why do we reduce the compression side? I was sure that we would reduce the tension side.
But wait... Since we are dealing with one arrow the compression side for bending it one way is the tension side for bending it the other way. My head hurts, I gotta think this through ;D ;D
willie:
--- Quote from: DC on September 05, 2017, 06:14:42 pm ---Mostly what I was after was why do we reduce the compression side? I was sure that we would reduce the tension side.
But wait... Since we are dealing with one arrow the compression side for bending it one way is the tension side for bending it the other way. My head hurts, I gotta think this through ;D ;D
--- End quote ---
DC
you gave me second thoughts with your question, and said you were going to think this through, so I was just wondering which side?
and for wood arrows? the same?
DC:
Thanks for bringing this up again Willie (I think ;D). I had put it out of my mind cause I finished the arrows I was working on and wasn't making any more. Now after my "stiff side" post it looks like I'll be rebuilding about half of my arrows so I'll have to think this through. I only use bamboo so I don't know about wood.
Hawkdancer:
Things to garner from this thread! 1. Have a sip or 2 of your favorite beverage. 2. Check spine. 3. Stiff side to the bow. 4. Scrape stiff side a bit to check spine. 4. Check spine. 5. Sip beverage.
6. Scrap stiff side. 7. Check spine. 8. Sip beverage! 9. If spine has gone below expectations, go to step 1. Continue with step 1 and step 1., and step 1! >:D. There ain't no arrow making emoji!
Actually, pretty good information - I'm on step 1!!! I find working the stiff side tends to bring spine into line. But you guys have broken more arrows than I have made or repaired!
Hawkdancer
DC:
I think I'm going to go with Arron's suggestion. All I can think of is that boo is tension strong. If the wall is thicker on one side it would increase the compression strength the same amount as the thickness increase. Maybe when it's in tension it's already so strong that the thickness increase doesn't matter that much. It seems a little far fetched but if the boo is so strong that all or most of the bend comes from compression it starts to make sense. I think this is going to have something to do with a shifting neutral plane. I don't know how this would effect solid wood arrows or shoot arrows with a pith.
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