Author Topic: Fancy Yew 55" // 35# @ 25"  (Read 11663 times)

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Offline simson

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #30 on: November 15, 2018, 09:36:20 am »
what I meant:

Unbraced: continous reflexed limbs
Braced: a straight bow (tip to tip) when braced, braceheight comes from the mounted epoxi - thing (= mounted on the belly at the tips, a quarter Draw: of a circle, radius looking outwards)
the string will lift of continously when the bow gets drawn, and is full lifted off at full draw.

Btw. , a string angle > 90° makes no sense in my opinion.
Simon
Bavaria, Germany

Offline DC

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #31 on: November 15, 2018, 10:08:38 am »
This popped into my brain. Heavy pull until string lifts off rings and then it lightens up. Primitive let off. ;D Adjustable by the size of the rings and length of the levers. Am I missing something obvious. Maybe a little wobbly?

Offline simk

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #32 on: November 23, 2018, 01:55:48 pm »
Ok fellows, here's fancy yew 1.1.
Did the most simple correction - we have a virtually shorter bow now and the string lifts off over an even round...should work better now.
Still open for new designs as adding epoxy and changing would still be possible. tomorrow I'll first shoot her in the new setup.
Cheers
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Offline simk

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #33 on: November 23, 2018, 02:03:23 pm »
DC & Simson

It took me some time to think about your suggestions: You both suggested some kind of artificial deflex constructions. What's the intention? Less stress on brace? Longer draw length for a short bow? Geometrical correction of version 1.0? Did you mean something like this Simson? 

Very Interesting - thanx

Edit: DC, studied it again - weird idea...what would be the draw curve? Would it store more energy? After the string lifts off the rings it would be the same bow as before/without...

Edit2: Simson: Some Guy in the german forum did experiments with so called zero brace height bows with "decurves"...maybe you have a similar idea...I stole a pic... it's about brace height and efficency
https://www.fletchers-corner.net/phpbb/viewtopic.php?f=15&t=30676
« Last Edit: November 23, 2018, 02:41:52 pm by simk »
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Offline DC

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #34 on: November 23, 2018, 02:24:46 pm »
I've thought about this off and on and I think if you squint and hold your mouth right you can see that my drawing is really just an R/D. The string changes direction instead of the bow but I think that the FDC would look much the same.

Offline Taxus brevifolia

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #35 on: November 23, 2018, 02:48:51 pm »
Wow! Amazing, beautiful work

Offline George Tsoukalas

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #36 on: November 23, 2018, 04:14:04 pm »
No bow with that fine a tiller should be in a "Hall of Shame". Nicely done.
I think the tips are unique and give you good 1-1.5 extra  inches of draw.

Jawge
Set Happens!
If you ain't breakin' you ain't makin!

Offline Hamish

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #37 on: November 23, 2018, 05:08:10 pm »
That is the weirdest bow I have seen in a long time. Weird in the best possible way though. I love what you have done, very clever.

Offline selfbow joe

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #38 on: November 24, 2018, 07:46:45 am »
Very cool love the tips

Offline vinemaplebows

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #39 on: November 25, 2018, 11:45:44 am »
The bow in bend is great, but those tips are just added weight.
Debating is an intellectual exchange of differing views...with no winners.

Offline Selfbowman

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #40 on: December 21, 2020, 12:19:52 pm »
 Craftsmanship WOW. That a strange beauty. I find no advantage to it as far as performance. Now if that cam worked like a compound. That would be a different story.  It just an opinion. Again craftsmanship wow. Arvin
Well I'll say!!  Osage is king!!

Offline Flntknp17

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #41 on: December 22, 2020, 12:26:35 pm »
That is really novel and you deserve huge applause for trying something new.  It isn't all that often that I see something totally new in a 10,000+ year old technology.  Really interesting and I suspect you have opened a door that a lot of others will now walk through to a bunch of new ways to affix a string and alter the F/D curve of a bow.

Well done!

Matt


Offline RyanY

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #42 on: December 22, 2020, 01:26:06 pm »
Missed this the first time around. Very creative idea. 55” is plenty of length for a bend through the handle bow with 25” draw length. 2x draw is the limit for a bendy handle bow on average unless the design is made to handle more or less. I would guess that this is about as much or more work than reflexing the tips but looks very unique and interesting!

Offline Whiskeyjet

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #43 on: December 22, 2020, 02:09:52 pm »
Neat!

Offline ssrhythm

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Re: Fancy Yew 55" // 35# @ 25"
« Reply #44 on: December 23, 2020, 10:50:27 pm »
Yessir!  That’s a helluva way to add recurves for low string angle and increased preload, and it looks like it could be lighter than if you had 3 more inches of wood on each tip.  It just looks like you need to do the same thing but shape them more elliptical and tear dropped off the end of/around the tip toward belly so that the string will lift away somewhere around 23-24” of DL...which would drop you into a sweet, non stacking...almost a let-off as you come to anchor.  Man, you are on to something right there.  Work of art and a promising bit of engineering smarts to-boot.