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Main Boards => PowWow => Topic started by: AALLFAB on January 08, 2010, 12:10:00 PM

Title: PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?
Post by: AALLFAB on January 08, 2010, 12:10:00 PM

(http://i985.photobucket.com/albums/ae340/aallfab/SPINE%20TESTER/100_6981.jpg)
 (http://i985.photobucket.com/albums/ae340/aallfab/SPINE%20TESTER/100_6980.jpg)

How do i calibrate a spine tester to be accurate to a known tested calibrated standardized AMO static spine. Jim

Title: Re: PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?
Post by: Earl Jeff on January 08, 2010, 12:48:00 PM

I took a few Different arrows that I already knew the spine weight and use them to adjust the anvil weight on my spine tester   (http://i567.photobucket.com/albums/ss115/earljeff/spinetester2006.jpg)

Title: Re: PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?
Post by: AALLFAB on January 08, 2010, 01:00:00 PM

Very cool tester I like that you can easily spin the arrow on yours for knock orientation. Jim

Title: Re: PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?
Post by: reddogge on January 08, 2010, 02:20:00 PM

The AMO standard is a 2.0# weight on a shaft suspended between 26" centers.  You can measure deflection and compare if to this AMO spine chart.

 http://www.rosecityarchery.com/amospine.html

Title: Re: PHOTOS OF SPINE TESTER HOW 2 CALIBRATE?
Post by: AALLFAB on January 08, 2010, 05:25:00 PM

Cool chart i will keep a copy with the tester. jim