Author Topic: Compressing Shafts.  (Read 19449 times)

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Offline stickbender

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Re: Compressing Shafts.
« Reply #30 on: February 27, 2010, 07:40:34 pm »

     Yeah, El D, I think I will heat up the left over field peas, and maybe even make some corn bread to go with them, and have a beer, to kill off the damaged brain cells, that were actually trying to follow that stuff.  I didn't know "Werner (Verner) Von Braun" was into primitive archery...... ;D  See ya in the Ooga Booga section El D. 8)
                                                                       Wayne

Offline mullet

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Re: Compressing Shafts.
« Reply #31 on: February 27, 2010, 08:37:16 pm »
 I'm buying some tapered carbons from Chad at the Classic.
Lakeland, Florida
 If you have to pull the trigger, is it really archery?

Offline artcher1

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Re: Compressing Shafts.
« Reply #32 on: February 27, 2010, 08:58:55 pm »
Boy, I'm sure glad I'm soooooooo simple minded  ;D. ART

Offline jamie

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Re: Compressing Shafts.
« Reply #33 on: February 27, 2010, 11:53:39 pm »
The compression block from 3rivers needs to be heated with a torch before used. Oogabooga mike =)
"Man is a tool-using animal. Without tools he is nothing, with tools he is all."

waterbury, ct

Offline CraigMBeckett

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Re: Compressing Shafts.
« Reply #34 on: February 28, 2010, 12:33:18 am »
Well I have been spouting all this theory, what about someone with the block actually telling us what happens, there must be someone out there with one.

To those I have given headaches I apologise most profusely, I would recommend a few decent beers, (not of course that you yanks have any decent beers  ;D.)

Craig

Offline El Destructo

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Re: Compressing Shafts.
« Reply #35 on: February 28, 2010, 03:10:58 am »
                                    This Ole Yank......drinks W.L.Weller....107 proof Suthin Mash Whiskey...
As a species we're fundamentally insane. Put more than two of us in a room, we pick sides and start dreaming up ways to kill one another.Why do you think we invented politics and religion.
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Offline mullet

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Re: Compressing Shafts.
« Reply #36 on: February 28, 2010, 10:17:49 pm »
 Art, You know what I mean ;D
Lakeland, Florida
 If you have to pull the trigger, is it really archery?

Offline agd68

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Re: Compressing Shafts.
« Reply #37 on: March 01, 2010, 11:25:32 am »
I would really like to hear from anyone who has actually done this. I wont say you science guys are wrong but I just cant wrap my caveman brain around the theory that if you take X amount of material and compress it to a smaller diameter ,without removing any material ,that it can get weaker. ???
Happiness is..
A wet lab, dirty gun, and a cold beer after a day on the Marsh

Offline jamie

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Re: Compressing Shafts.
« Reply #38 on: March 01, 2010, 12:11:47 pm »
been done. you lose 5lbs of spine. block needs to be heated with a torch and then the shaft is pressed through with a drill.
"Man is a tool-using animal. Without tools he is nothing, with tools he is all."

waterbury, ct

Offline artcher1

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Re: Compressing Shafts.
« Reply #39 on: March 01, 2010, 12:29:52 pm »
Learn it first hand from burnishing shafts and checking on my tester...........ART

Offline Justin Snyder

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Re: Compressing Shafts.
« Reply #40 on: March 01, 2010, 04:32:26 pm »
Tested the idea on several types of wood. I was trying to understand the dynamics of bending wood, not building arrows.
Everything happens for a reason, sometimes the reason is you made a bad decision.


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Offline Diligence

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Re: Compressing Shafts.
« Reply #41 on: March 01, 2010, 05:00:34 pm »
I wonder if an 11/32 shaft which has been reduced with the burnishing tool to 5/16 has a larger spine than a 5/16, non-burnished shaft?  (ie. measure of spine differences as a result of burnishing and compressing, rather than spine losses from the smaller diameter).

I would guess that the spine is higher for the burnished 5/16 shaft, as compared to the non-burnished 5/16 shaft. (of the same shaft material)

anybody?

J
"Always do your best and to everyone be kind and good" - Ernst Hjalmer Selin (1906-2000)....my grandfather's words of advice he wanted me to tell my children.

Offline CraigMBeckett

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Re: Compressing Shafts.
« Reply #42 on: March 01, 2010, 06:19:25 pm »
Diligence,

Quote
I wonder if an 11/32 shaft which has been reduced with the burnishing tool to 5/16 has a larger spine than a 5/16, non-burnished shaft?  (ie. measure of spine differences as a result of burnishing and compressing, rather than spine losses from the smaller diameter).

Given the differences in spine between different pieces of wood I doubt that you could get a definitive answer to the question unless a large number of tests were done and you would have to start with pairs of 11/32 shafts of equal spine, reduce one by use of the swage, the other by say a plane. You would also have to prove that mereley reducing the diameter of a pair of shafts that began at the same spine produces smaller diameter shafts of the same spine.

Craig

Offline mullet

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Re: Compressing Shafts.
« Reply #43 on: March 01, 2010, 09:04:02 pm »
 To keep it simple, thin bends easier than thick, Nootons Law of Compression.
Lakeland, Florida
 If you have to pull the trigger, is it really archery?

Offline Hillbilly

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Re: Compressing Shafts.
« Reply #44 on: March 01, 2010, 09:15:44 pm »
I like fig Newtons.
Smoky Mountains, NC

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Progress might have been all right once but it's gone on for far too long.