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Main Boards => PowWow => Topic started by: dringge on May 18, 2016, 12:16:00 PM

Title: Spine Tester
Post by: dringge on May 18, 2016, 12:16:00 PM
I am wanting to check my own new shafts. Ive never had one. Is there one in particular I should be looking at?
Title: Re: Spine Tester
Post by: Lefty on May 18, 2016, 03:17:00 PM
The one by ace is nice. If you want to make one, the ones with the dial caliper are pretty easy to make. I made one. I see you are from Iowa, I am in SE Iowa and if you are close by, you are welcome to use mine to try it. Plus I have the plans around here somewhere.
Title: Re: Spine Tester
Post by: Ray Lyon on May 18, 2016, 03:41:00 PM
I got the Ace wall mount model.  It works great and it's conveniently hangs out of the way. I checked the calibration with some aluminum arrows and it was spot on.
Title: Re: Spine Tester
Post by: dringge on May 18, 2016, 07:29:00 PM
Lefty, Thanks for the offer. I am near Cedar Rapids.
I have seen some plans for building them. I may go that way.
Title: Re: Spine Tester
Post by: Hankem on May 18, 2016, 10:51:00 PM
google spine testers.... you can build your own for about $40 with a dial indicator, a couple shelf brackets, and some fishing weights.
Title: Re: Spine Tester
Post by: Lefty on May 19, 2016, 07:30:00 AM
I live in Mt Pleasant and work in Iowa City.  I built mine with online plans by Jim Hill.  Don't know if they are still floating around, but they were easy to follow and it works great.  Most of the cost is in the dial caliper.
Title: Re: Spine Tester
Post by: rraming on May 19, 2016, 09:18:00 AM
Quote
Originally posted by Ray Lyon:
I got the Ace wall mount model.  It works great and it's conveniently hangs out of the way. I checked the calibration with some aluminum arrows and it was spot on.
Agree
Title: Re: Spine Tester
Post by: reddogge on May 19, 2016, 09:27:00 AM
I built this one for virtually nothing using online plans and scrap wood. Works perfect.

   (http://img.photobucket.com/albums/0603/reddogge/Archery/IMG_0575.jpg)
Title: Re: Spine Tester
Post by: dringge on May 19, 2016, 10:25:00 AM
Im well acquainted with google. That always the first place I look. There are lots of plans out there but some are pretty crude. I just need to have a little more faith. My concerns always go back to accuracy.
Title: Re: Spine Tester
Post by: reddogge on May 19, 2016, 12:08:00 PM
A $150 commercial spine tester will not be quantum degrees more accurate than a homemade spine tester. You basically are only measuring deflection and you can do that with two nails in the wall, a 2# weight and a ruler.