Primitive Archer

Main Discussion Area => Bows => Topic started by: StickMark on July 08, 2020, 09:34:50 pm

Title: Ratio of dried sinew to wood
Post by: StickMark on July 08, 2020, 09:34:50 pm
Is a ratio of 1 to 3, dried sinew to wood, ideal, given the dried sinew is at least 1/8" thick. Can you go heavier on the sinew, approaching 3:5?

I have an oak stave that I over tillered, so it is 40# at 21, with ntn length of 43" and a non bending handle of 5".
I have two course on it, a edge to edge layer and then a layer down the center. I did this twice, hence 2 courses.
Width is 1/8 at tips, so will be thicker at mid limbs.

Would like to get it back to 45# at 21". May not be doable, as the sinew will reach real diminishing returns. (I can soak the sinew off, reuse it)

Thoughts

Title: Re: Ratio of dried sinew to wood
Post by: DuBois on July 08, 2020, 09:53:20 pm
Enjoy it as is if it shoots nicely.
Easy for me to say cause I never seem to do it. I would probably put 1 narrow and highly crowned center course over handle to about 4" from nock.
Fun either way 8)
Title: Re: Ratio of dried sinew to wood
Post by: loefflerchuck on July 09, 2020, 09:10:05 pm
A single application of 20 grams of processed sinew to a bow that size should add more than 10 pounds of draw weight.
Title: Re: Ratio of dried sinew to wood
Post by: bradsmith2010 on July 10, 2020, 11:42:45 am
yes you should have no  problem getting the weight back,, dont know about the ratio,,