Author Topic: Increasing spine?  (Read 5235 times)

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Don Case

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Re: Increasing spine?
« Reply #15 on: April 23, 2014, 12:33:11 am »
Don, heat the shaft while spinning it starting at one end and work down the shaft to the other end. Lay it on a flat surface to cool completely. You should still be able to make slight adjustments by hand after tempering.

Tried it and it was working but I dried it to much and when I tried to flex it a bit(not much) it cracked. Should have let it sit for a coupla days. Get impatient and forget stuff, that will be written on my headstone. Anyway this is way too much effort to put into an arrow. Start with a decent shaft.
Don

Offline PEARL DRUMS

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Re: Increasing spine?
« Reply #16 on: April 23, 2014, 08:51:29 am »
Maybe running them through a compression block would firm them up.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline bowtarist

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Re: Increasing spine?
« Reply #17 on: April 23, 2014, 12:04:03 pm »
How about a wood hardener? Never done it, never used it, just an idea. dp
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Offline TimBo

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Re: Increasing spine?
« Reply #18 on: April 23, 2014, 12:22:22 pm »
Did you double check your new spine tester with an arrow of known spine?  Are you remembering to measure the stiff side of the arrow (with the edges of the grain up, if that makes sense)? 

You could also trade them, I suppose...actually I wouldn't mind some kid arrows if you go that route.  Good luck!

Don Case

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Re: Increasing spine?
« Reply #19 on: April 23, 2014, 01:22:20 pm »
They only cost a couple of bucks, not worth bothering. I've got some aluminum shafts, I'll look up the spine and test it. Something of interest came up. When I was heating and spinning the arrow I had the heat about 2 1/2" from the arrow. I waited til it was light brown and then moved it along. It seemed to be taking a long time to turn brown. When I broke it I took a look and it was the same brown all the way through. I'm wondering if I should have had the heat closer so it would brown quicker and maybe not so deep. Any thoughts?

Don Case

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Re: Increasing spine?
« Reply #20 on: April 23, 2014, 01:39:14 pm »
I tested an Easton 2514. Spine should be .305 and I got .300 or so. I'm reasonably confident about the tester now.

Offline bow101

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Re: Increasing spine?
« Reply #21 on: April 23, 2014, 02:20:32 pm »
They'll be about 28- 30 inches I think. Kind of ashamed to admit it but I'm having a heck of a time trying to pull this new bow so I won't know the length for sure til I man up a bit and see just how far. I can manage 40# OK but 55# makes me grunt a touch( a big touch :-[ :-[ )

Yep I know how ya feel, it sucks getting old.  Thats why I decided to build a few r/d bows and lower weight like around 42-48 pound range, I find I can hold the draw a bit longer and not stress the old bones with a 55 pounder.   When I go to the Gym I do an exercise where I stand and pull up and back 55 pounds, this keeps me conditioned well so I have no problem with anything lower.  As far as 3/8" shafts, i noticed the arrows were going to the left of the target.  I'm right handed.  All the arrows that I make now are 11/32" , I don't have spine tester built yet.  One project at a time. Is your draw 28"....?
"The privilege of a lifetime is being who you are."  Joseph Campbell

Don Case

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Re: Increasing spine?
« Reply #22 on: April 23, 2014, 02:37:53 pm »
What's a "gym"? ;D My draw length is in the 26-28 range. I think :P
Off to Winsor Plywood. See what they've got for dowels. My end plan is to use OS twigs for arrows. I've got a bunch drying but they're not ready. Now I've got a bow and no arrows. My first piece of advise for someone wanting to make a bow would be, "Make arrows, then a bow"
« Last Edit: April 23, 2014, 02:43:25 pm by Don C »

Offline TimBo

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Re: Increasing spine?
« Reply #23 on: April 23, 2014, 03:22:53 pm »
As a wise man once said - "Any stick do for bow — good arrow damn heap work".

Don Case

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Re: Increasing spine?
« Reply #24 on: April 23, 2014, 04:33:14 pm »
And two matching arrows more than twice damn heap work :)

Offline bow101

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Re: Increasing spine?
« Reply #25 on: April 23, 2014, 08:01:11 pm »
Dowel.....scmashowels,  make your own from square stock 'tis what I do.  If you have a table saw, just rip the stock slightly larger than 3/8" or whatever.  Then make a good shooting board, you can plane down one corner without flipping it over.  As long as you have a good hand plane it won't take long. I use a jig and electric drill to make them round in about 30 seconds.  Any way I can't find any 11/32" dowell.  The last batch of blanks I made from 15" pieces of scrap and spliced them, just made a 30 degree slice on the cut-off saw and glued them up.  Many ways to skin a cat.
"The privilege of a lifetime is being who you are."  Joseph Campbell

Don Case

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Re: Increasing spine?
« Reply #26 on: April 23, 2014, 10:26:02 pm »
I just needed a quick half dozen to shoot in my new bow. I'll be using OS shoots when they dry.