Primitive Archer

Main Discussion Area => Bows => Topic started by: Mafort on June 03, 2021, 06:08:05 pm

Title: Educate me guys
Post by: Mafort on June 03, 2021, 06:08:05 pm
So I had a question that I was pondering figured I’d share it here. I have a limb of an Osage tree that’s grown curved. when split the inside of this curve becomes the back of the bow essentially making a bow with several inches of reflex. How much of this reflex can I assume the finished bow would maintain? Also what is the stress factor in that? It’s pretty short but I figure I can sinew back it and then make a shorter draw bow.
Title: Re: Educate me guys
Post by: Pat B on June 03, 2021, 06:43:31 pm
IMO, more than about 4" of reflex can cause enough strain to eliminate any advantage you may get from the reflex. I usually add 3" to 4" and end up with 1" of reflex or a flat profile.
Title: Re: Educate me guys
Post by: SLIMBOB on June 03, 2021, 08:12:44 pm
My experience, won’t pull out as readily as induced reflex, but more temperamental.
Title: Re: Educate me guys
Post by: bownarra on June 04, 2021, 02:40:58 am
How long is a piece of string...................? :)
Title: Re: Educate me guys
Post by: Del the cat on June 04, 2021, 02:53:36 am
How long is a piece of string...................? :)
I generally find it is just too short for the intended purpose ::)
Del
Title: Re: Educate me guys
Post by: stuckinthemud on June 04, 2021, 05:12:15 am
Biggest issue is that that wood is compression or tension wood and will change its shape as humidity levels change, branch wood is unstable and doesn't keep its profile
Title: Re: Educate me guys
Post by: bassman211 on June 04, 2021, 06:43:46 pm
What pat B said.
Title: Re: Educate me guys
Post by: bradsmith2010 on June 04, 2021, 11:48:33 pm
and that will vary with how much sinew is applied,,, its pretty hard to guess,