I saw an intereting comment about how a bow was marked would probably be correct poundage with fingers vs. being pulled on a test stand with a hook.
From applied physices I can understand a bow being pulled with fingers will require more poundage because the applied load is over a greater surface area than a single pint hook.
However, I am curious what the standard is? And is it applied consistently?
The standart is the measure with a simple hook but some bowers (like Kirk Lavender at Bigfoot bows) use a "hook" who imitate the fingers.
I think the Kirk methode is lot more accurate,
If a have a short bow,long draw lenght and big hands, the difference can be around 5/6 pounds,it's alot . :scared:
So which would weigh more, fingers or the single hook?
Fingers :readit:
Never knew that. Ya learn something every day.
Can't imagine it amounts to more than a pound or so for difference for most folks.
With the bow I am building right now I figure I have two more lbs to play with compared to the hook. so I am pulling 62 lb. and I want to hit 62 lbs. I know I can fine sand the bow losing 2 lbs and still be 62 lb when I pull it with fingers.
Bows vary but that is what I have with this one.
Damon Howatts and Martins were notorious for being 4 too 5 lbs heavier pull than what they wrote on the bow. I suspect that they used a hook and did not compensate. If the scale happens to be a bit heavy then it may be even more.
God bless, Steve
QuoteOriginally posted by pdk25:
Can't imagine it amounts to more than a pound or so for difference for most folks.
Yes,it's true,usually the difference is around 2 pounds but in some cases it's more,this is depend the bows geometry,the draw lenght,the bow lenght,etc....
Thanks, Good feedback any idea on how that is calculated into the dynamic spine calculator?
It's not calculated by the spine calculator and you have to add yourself 2# on the draw weight case,if you want to be more accurate to know you exact draw weight, you can built a "hook " who imitate the fingers and chek the bow weight with.