Primitive Archer

Main Discussion Area => Arrows => Topic started by: DC on November 27, 2014, 03:58:58 pm

Title: Arrow diameter
Post by: DC on November 27, 2014, 03:58:58 pm
I'm spining some bamboo and OS arrows. I'm looking for mid thirties in spine weight. When I find some they look awfully skinny to me. The nock ends are about 1/4" or less and the pointy ends are around 5/16" or so. Does this sound about right to you guys are should I start examining my method a bit. I double checked my spiner and an actual 1/2" and 1" deflection reads properly on the gauge. My weight is 2.000 lbs on a good scale and my points are 26" apart.
Thanks
Title: Re: Arrow diameter
Post by: Pat B on November 27, 2014, 04:05:42 pm
When I cut sourwood shoots or cane I usually go about 3/8" at the base. The finished arrows are usually just under 3/8" at the point and 5/16" at the nock on a 30" shaft.
Title: Re: Arrow diameter
Post by: Grasshopper Mouse on November 27, 2014, 05:22:39 pm
I can't comment on the ocean spray shafts but the bamboo sounds about right to me.
Bamboo is a pretty strong material so a spine that light is liable to be pretty skinny. You may want to consider using a stiffer shaft with either heavier tips or a longer length to bring the effective spine down to your range.
Also, bamboo is a pretty forgiving material. It's quite possible that you will get great flight with a heavier spine shaft anyway.

Guy
Title: Re: Arrow diameter
Post by: DC on November 27, 2014, 06:37:41 pm
Quote from: Pat B on November 27, 2014, 04:05:42 pm
When I cut sourwood shoots or cane I usually go about 3/8" at the base. The finished arrows are usually just under 3/8" at the point and 5/16" at the nock on a 30" shaft.

You don't spine test your arrows do you Pat?
Title: Re: Arrow diameter
Post by: Pat B on November 27, 2014, 07:02:34 pm
I spine to find the stiff side of the shaft which goes against the bow but I don't spine test for spine weight.
Title: Re: Arrow diameter
Post by: DC on November 27, 2014, 08:16:19 pm
At the risk of hi-jacking my own thread, why does it matter if the stiff side goes against the bow? I've heard this many times and you reminded me to ask. :)
Title: Re: Arrow diameter
Post by: duke3192 on November 27, 2014, 09:34:03 pm
Paradox, Paradox ,Paradox. goggle it.
Title: Re: Arrow diameter
Post by: DC on November 28, 2014, 12:25:39 am
Nope, that won't cover it.  Unless there is a reason for the vertical spine to be less than the horizontal spine I can't see why it makes a difference which is against the bow. If I have a bow that wants a 30# spine and I have an arrow that is 30 one way and 40 the other, why not use it the way that will work?
Title: Re: Arrow diameter
Post by: Pat B on November 28, 2014, 09:30:40 am
You should read spine from the stiffest side for the best arrow flight. That is hard to do safely with doweled shafts because you want the edge grain against the bow and only one sde is the stiffest but if that puts the grain "flames" pointing the wrong way you flip it over.
Title: Re: Arrow diameter
Post by: bow101 on November 29, 2014, 02:45:11 pm
So Ideally Pat you would want the grain like in #2 photo when building arrows. ?   and if arrow breakage occurs it would fly away from your hand correct..?
Title: Re: Arrow diameter
Post by: Danzn Bar on November 29, 2014, 05:10:16 pm
Only with run outs like this.....
Title: Re: Arrow diameter
Post by: Danzn Bar on November 29, 2014, 05:21:45 pm
Not with run outs like this........
Title: Re: Arrow diameter
Post by: bow101 on November 29, 2014, 05:26:33 pm
Quote from: Danzn Bar on November 29, 2014, 05:21:45 pm
Not with run outs like this........

Its ok as long as the points are facing towards the riser and not the other way.
Title: Re: Arrow diameter
Post by: Danzn Bar on November 29, 2014, 07:21:55 pm
Wrong.....I'm done bow101...................
DBar
Title: Re: Arrow diameter
Post by: Danzn Bar on November 29, 2014, 08:14:03 pm
by the way ................The best is no run outs at all... :) ;)...................
DBar
Title: Re: Arrow diameter
Post by: bow101 on November 29, 2014, 08:52:02 pm
Quote from: Danzn Bar on November 29, 2014, 08:14:03 pm
by the way ................The best is no run outs at all... :) ;)...................
DBar
Ooops I meant the other way around.........no run outs at all is best no doubt..
Title: Re: Arrow diameter
Post by: Pat B on November 30, 2014, 02:09:25 pm
The grain is only relative for doweled shafting. For shoots and cane you want the stiffest side against the bow, big end the point and small end the nock.