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Author Topic: Deflex / Reflex selfbow  (Read 5099 times)

Offline Sparky

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Re: Deflex / Reflex selfbow
« Reply #40 on: January 17, 2005, 09:38:00 PM »
I don't see no set...but that last pic has me scratchin muh haid. That left limb looks pretty stiff to me. I don't know bud...lookin good tho

Sparky
"Dang...you really do have a 29+ inch draw"...DCM at MoJam 2005

Offline DCM

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Re: Deflex / Reflex selfbow
« Reply #41 on: January 17, 2005, 09:43:00 PM »
;-)

The camera man got a little crooked Sparky.  Tilt yer haid about 5 degrees to the left, about like a bird dog does when you ask it to fetch a beer.

Offline Timo

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Re: Deflex / Reflex selfbow
« Reply #42 on: January 17, 2005, 10:14:00 PM »
Ya know Mims? I'm lost on that thing! I keep trying to see the cresent moon,Forget about the handle,and just see the limbs.But I can't do it!

I keep wanting to say...inner on both?

Hell just doit! I bet it'll breath fire!

(wife asked...."why you tilting your head")  :knothead:
(Enny o yuns know ware thu heart o a stumpytail izz??)

Offline John Scifres

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Re: Deflex / Reflex selfbow
« Reply #43 on: January 17, 2005, 10:35:00 PM »
I'm lost too.  It looks good but I don't know why  :)   I'd say make it shoot.  It'll be fine.
Take a kid hunting!

TGMM Family of the Bow

Offline Dave Bulla

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Re: Deflex / Reflex selfbow
« Reply #44 on: January 17, 2005, 10:36:00 PM »
Wow that looks nice.

Ya know, I'm wondering (and with my lack of hands on experience that's dagerous) but is there maybe a lot less stress in that bow than what ya might think at first?   I mean with that much deflex in the handle I'm wondering if maybe it's a whole lot easier to get the draw length out of it?  Not so much because of the position of the handle to the plane of the bow (kinda reversed handle result) but that PLUS the angle of the limbs coming out of the handle seem like it might have some serious benefits to making a long smooth draw.

Am I way off on this?

How much does the reflex counteract the deflex?
Dave


I've come to believe that the keys to shooting well for me are good form, trusting the bow to do all the work, and having the confidence in the bow and myself to remain motionless and relaxed at release until the arrow hits the mark.

Offline Sparky

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Re: Deflex / Reflex selfbow
« Reply #45 on: January 17, 2005, 10:51:00 PM »
Man!...ain't Bodark great. No other bow wood would even stand a chance of being a bow under that stress... :bigsm

Sparky
"Dang...you really do have a 29+ inch draw"...DCM at MoJam 2005

Offline RainCrow

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Re: Deflex / Reflex selfbow
« Reply #46 on: January 18, 2005, 10:38:00 AM »
David,  You TRULY are a master at tillering!  Most of us would have settled on this (or broke it).  Your patience is unbelievable.

-Terry
"Archery" is getting as far from the target as you can, and hitting it.  Bowhunting is getting as close to the target(animal) as you can, and not missing.

Offline DCM

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Re: Deflex / Reflex selfbow
« Reply #47 on: January 18, 2005, 05:58:00 PM »
Dave Bulla you've asked some questions that I read but haven't responded to.  Been busy and wanting to get progress pics up.

On the twist tillering and the curved limb thing, I take wood off the side that don't bend enough.  I want the limb to lay flat when it's braced.  It sounds simple and evasive but it works.  Kinda like twisting a flemish string, too easy to explain in words.

On the nature of deflexed handle geometry, you should read Adam's article if you haven't.  I think it is a reprint but was in the most recent PA.  If you don't subscribe you should.  It's prolly still available on some newsstands.

Your intuition is correct.  It's easier to get more draw with less string angle and the inner limbs are less loaded.  The Shrew et. al. ain't made like that by accident.  

On this bow the nocks seem to lay about 1" behind the handle (net deflex) when compared to a conventional handle geometry.

Offline Adam Keiper

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Re: Deflex / Reflex selfbow
« Reply #48 on: January 18, 2005, 06:12:00 PM »
David, That's one bad mama-jama!  You're really going for broke with this one.  Short bow, long draw, high stress, wood flaws...  I love osage, but I'm crossing my fingers for you that it all holds.  Tiller looks "about right", whatever that is for such a cantacarous piece of wood.

Offline George Tsoukalas

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Re: Deflex / Reflex selfbow
« Reply #49 on: January 18, 2005, 06:14:00 PM »
I meant TBB #2 P 133. Jawge

Offline George Tsoukalas

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Re: Deflex / Reflex selfbow
« Reply #50 on: January 18, 2005, 06:16:00 PM »
She looks good, David. Jawge

Offline DCM

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Re: Deflex / Reflex selfbow
« Reply #51 on: January 18, 2005, 08:37:00 PM »
Thanks for the reference George.  I re-read Adam's article and it referenced it as well.  Tiller looks kinda similar, or it will as I progress up the draw lenght.

Offline DCM

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Re: Deflex / Reflex selfbow
« Reply #52 on: January 18, 2005, 09:30:00 PM »
Well here's tonight installment.  Up to 45# @ 26".  Figure 8# for 3" of draw so this is about where the rubber meets the road.  I've got a little weight to give for breaking in and a little to get by shortening the nocks a smidge.  They won't carry a string for shootin' as short as I've cut them.

 http://home.midsouth.rr.com/ddmims/ss10.JPG

I can see it took maybe 1/2" of set from working if that much.  I would be surprised if it didn't rest back.  I confess the tiller is hard to read but when you work the bow all the wood seems to move.  Happily the handle does not, appear to move.

 http://home.midsouth.rr.com/ddmims/ss11.JPG

Opposing sides again.  The upper limb (right in top pic) appears a little proud but flattens on the reverse side.  Twist.  I ain't done studyin' on it but I can't say I'm not pleased so far.

 http://home.midsouth.rr.com/ddmims/ss12.JPG

A little trick photography.  Whether the tiller is right or not it looks even to me this way.

I've shot it a few times 20" draw or so.  I need to start shooting it more, but I'm a little askeered.  ;0(

Offline NEW GUY

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Re: Deflex / Reflex selfbow
« Reply #53 on: January 18, 2005, 09:51:00 PM »
Hey, no fear brother!! LOL!
"Good Judgement comes from experience, and alot of that comes from Bad Judgement."

Offline James Wrenn

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Re: Deflex / Reflex selfbow
« Reply #54 on: January 18, 2005, 09:51:00 PM »
It is hard to believe what you guys can do with a piece of wood!  :scared:  Great job!
....Quality deer management means shooting them before they get tough....

Offline clintopher

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Re: Deflex / Reflex selfbow
« Reply #55 on: January 18, 2005, 10:05:00 PM »
Dude, I wanna be like you when I grow up...seriously.

Clint

Offline Timo

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Re: Deflex / Reflex selfbow
« Reply #56 on: January 18, 2005, 10:11:00 PM »
Looks great  Mims! I think?ha,ha

Really, I'm not sure what it's suppose to look like,but I think that's about it!

Just curious as to about what your limb thickness is?
(Enny o yuns know ware thu heart o a stumpytail izz??)

Offline Linc

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Re: Deflex / Reflex selfbow
« Reply #57 on: January 19, 2005, 04:48:00 AM »
Don't know why you all are so nervous! I got faith in DCM, but mostly I got faith in osage.   :thumbsup:  

Dave that is one mighty fine lookin bow.
Lincoln E. Farr

Offline John Scifres

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Re: Deflex / Reflex selfbow
« Reply #58 on: January 19, 2005, 08:44:00 AM »
I really hope this one lives.  I want to shoot it.  I agree with Tim.  That looks like tiller but I really can't say why  :)
Take a kid hunting!

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Offline DCM

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Re: Deflex / Reflex selfbow
« Reply #59 on: January 19, 2005, 08:47:00 AM »
Thanks for the kind comments ya'll.  For some of you aspiring bowyers, all that stands between you and a project like this is some bow wood and courage.  I'll post full draw pics (or bloody noggin' pics) once I get her shot in a mite.

Timo,

About like this [holding fingers up].  ;-)  The limbs are a right smart thicker than you'd expect at the fades.  They are thinner than you'd expect on the mid and outer limb.  They are a smidge wide for the weight and crown about like that carrot wood you gave me at MoJam.

I'll put a ruler on it tonight but I can only get measures in precision of about +/- 1/32".  All I got is a regular carpenter's tape and I need me some bi-focals real bad.  It's getting down right embarassing.

This bow tillered about like a r/d bbo once I got the string on it and the irregularities corrected.  Honestly, it went a lot easier than I expected.  I bet I ain't got 4 hours total working time in the whole shooting match after the first post.

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