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Main Boards => PowWow => Topic started by: islandboy on March 26, 2008, 09:12:00 PM

Title: Spine; Grain?
Post by: islandboy on March 26, 2008, 09:12:00 PM
I am building some arrows from cedar, and maple.  Spinning them through a dowel maker and planning to taper.  I was wondering about arrow spine.  Do you measure wood Arrow spine with the grain vertical or horizontal? Or both and take the average? Does it even matter?
Title: Re: Spine; Grain?
Post by: Grey Taylor on March 27, 2008, 02:12:00 AM
See the grain rifts in this picture?  Those points should be on the side of your shaft as it sits in the spine tester.

 (http://www.geocities.com/greenmanarchery/build6f.jpg)

Hope that makes sense.

Guy
Title: Re: Spine; Grain?
Post by: longstiks on March 27, 2008, 03:54:00 AM
Like Grey Taylor said- that means your grain would be vertical, and when shooting the arrow it will be horizontal.
Denny
Title: Re: Spine; Grain?
Post by: islandboy on March 27, 2008, 09:12:00 AM
Here is an image of what I understand you to be saying:

  (http://www.aye1.com/images/Spine.jpg)

The grain runout was a suggestion from another site.  Suggestion was that, should the arrow fail, the remaining shaft would fly up and away from your bow hand.   :eek:    Ideally there is no runout.   ;)
Title: Re: Spine; Grain?
Post by: Grey Taylor on March 27, 2008, 10:26:00 AM
You got it!

Guy