Primitive Archer

Main Discussion Area => Bows => Topic started by: shookmonster on November 30, 2012, 10:34:25 am

Title: need some advice
Post by: shookmonster on November 30, 2012, 10:34:25 am
ive posted on here about this bow im currently making, its an osage stave, my goal was to try for a 50- 60 lb at 28, limbs from handle are just shy of 1 1/2 inches, tapering to what i think im going to settle for around 3/8, looking at the bow compared to my other one that is 1 3/4 tapering to 1/2 in and 55 #, how am i going to get that lb out of a  bow that limbs are thinner?
   

i know its possible based on limb tickness and length, my length is 66 ntn, i just dont want to make it a less poundage bow if i dont have to, ideas, thoughts and comments please
Title: Re: need some advice
Post by: blackhawk on November 30, 2012, 10:37:48 am
Your fine and you'll get there by proper tillering
Title: Re: need some advice
Post by: RyanY on November 30, 2012, 11:38:06 am
Keep it the full 1 1/2" wide to mid limb and tiller elliptically. You could also try and heat treat it a bit if it feels like it's going to come in light. Depending on the density of the osage you could get a much heavier bow from a narrower piece of wood.
Title: Re: need some advice
Post by: Hrothgar on November 30, 2012, 11:46:10 am
Given the length and width of your bow ( and the previous one--1 3/4" wide) you are probably 'over-building' plenty. You might pike the bow a couple inches and carefully retiller, this should increase the weight--osage can handle it.
Title: Re: need some advice
Post by: shookmonster on November 30, 2012, 01:03:49 pm
does flipping the tips a little make up for poundage?
Title: Re: need some advice
Post by: Pat B on November 30, 2012, 01:07:13 pm
es, flipping the tips does make up extra poundage but it also adds extra stress to the bow so be sure your tillering is spot on.
Title: Re: need some advice
Post by: ionicmuffin on November 30, 2012, 01:13:07 pm
TBB shows several osage bows at 1 1/4 inches that wind up at 50+ lbs. its got a higher density than a lot of woods, allowing it to be thinner? something like that.