Main Discussion Area > Bows
Stress and performance
Aussie Yeoman:
You mean both limbs tillered to the same shape? The narrow deep limb would either not be deep, or it would take horrendous set, I think.
Del the cat:
--- Quote from: Selfbowman on May 23, 2024, 09:18:24 pm ---Ok I know someone has done it but let’s say we build a bow with a pyramid on one end and a narrow and thick limb on the other end . Side profile being the same. Would this be no different from building a pretty wild character bow. Just asking before I try it.🤠
--- End quote ---
No problem tillering different styles on each limb.
https://bowyersdiary.blogspot.com/2017/03/the-frankenbow.html
Del
mmattockx:
--- Quote from: Selfbowman on May 23, 2024, 09:18:24 pm ---Ok I know someone has done it but let’s say we build a bow with a pyramid on one end and a narrow and thick limb on the other end . Side profile being the same. Would this be no different from building a pretty wild character bow. Just asking before I try it.🤠
--- End quote ---
That would be interesting. Assuming the wood can stand the strain on the narrow/thick limb then the pyramid side would be well overbuilt because the wider/thinner limb will have lower strain. You could match them better if the pyramid side was also made narrow/thick but tillering both sides to the same bend would be wrong, since the pyramid side wants a circular tiller and the other wants a more elliptical tiller.
I would expect it to have a fair amount of hand shock because of the mismatched limbs not moving in synch with each other. I think you should try it, Arvin. ;D
Mark
Selfbowman:
With all that encouragement ya u gave me I don’t see much hope.🤠🤠🤠
willie:
--- Quote from: Selfbowman on May 24, 2024, 01:28:47 pm ---With all that encouragement ya u gave me I don’t see much hope.🤠🤠🤠
--- End quote ---
Dont despair! Arvin :)
Perhaps if you describe in broader terms what you wish to accomplish, folks could offer suggestions.
for instance, I recall some of the bow design changes you have tried from your "tried and true design" have resulted in bows taking more set and not performing as well. Perhaps a more pratical approach would be a better way to monitor set as the bow gets tillered, rather than examining the theory of why it happened
when you are pushing the performance of wood to the max, and measuring success by yards at Bonneville. skills trump theory, and the winners are fine tuning the best to begin with
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