Author Topic: Brace height, this sounds crazy but  (Read 5250 times)

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Offline Dances with squirrels

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Re: Brace height, this sounds crazy but
« Reply #30 on: March 03, 2021, 10:29:10 am »
Here's the insert pieces to allow it to pivot.
Straight wood may make a better bow, but crooked wood makes a better bowyer

Offline Dances with squirrels

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Re: Brace height, this sounds crazy but
« Reply #31 on: March 03, 2021, 10:29:57 am »
Dropped in place.
Straight wood may make a better bow, but crooked wood makes a better bowyer

Offline Dances with squirrels

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Re: Brace height, this sounds crazy but
« Reply #32 on: March 03, 2021, 10:38:00 am »
A test bow I was playing with, on the pivot and pulled from my string hand location. I didn't make any adjustments to move the pivot point over or anything, I just stuck the pivot under it where it would balance it, but these are just some pictures I have on my phone that sort of shows what I'm talking about.
Straight wood may make a better bow, but crooked wood makes a better bowyer

Offline Dances with squirrels

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Re: Brace height, this sounds crazy but
« Reply #33 on: March 03, 2021, 10:40:13 am »
Sorry about the blurry pictures. I had already resized them 25% of original, but this site said they had to be even smaller to post them.
Straight wood may make a better bow, but crooked wood makes a better bowyer

Offline Selfbowman

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Re: Brace height, this sounds crazy but
« Reply #34 on: March 03, 2021, 10:42:42 am »
Yes you have to align the bow on top of the block every time you make a correction and pull th string form the same place each time. I nock 1/4-5/16 above shelf plus the thickness. Of the nock.
Well I'll say!!  Osage is king!!

Offline Tradslinger

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Re: Brace height, this sounds crazy but
« Reply #35 on: March 03, 2021, 11:35:18 am »
I thought that I had posted something earlier on this post but it isn't here now. I went ahead and scraped the upper limb to make it more balanced at full draw. I know that it is an optical illusion due to the downward deflex at the handle of the upper limb. I would have answered this sooner but was out of town yesterday to see the cornea specialist that did my transplant back in Nov. 
I will try again later to get pics loaded. thanks all, Jerry

Offline Selfbowman

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Re: Brace height, this sounds crazy but
« Reply #36 on: March 03, 2021, 11:44:43 am »
 ;D ;D Boy has he missed out! 🧐And I come back to this???
Well I'll say!!  Osage is king!!

Offline jamesh76

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Re: Brace height, this sounds crazy but
« Reply #37 on: March 03, 2021, 01:41:42 pm »
Pics

Offline Tradslinger

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Re: Brace height, this sounds crazy but
« Reply #38 on: March 03, 2021, 02:53:24 pm »
thanks to James, I have this pic of my last tillering. it needs a little bit more on the right side, the last 1/3 of the limb.

Offline Tradslinger

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Re: Brace height, this sounds crazy but
« Reply #39 on: March 03, 2021, 02:56:11 pm »
if you look closely, the limb immediately out from the handle on the right side is kicked downward, thus making it look worse than it is.

Offline RyanY

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Re: Brace height, this sounds crazy but
« Reply #40 on: March 03, 2021, 03:04:22 pm »
It looks like there’s a large limb length discrepancy also, is that correct?

Offline willie

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Re: Brace height, this sounds crazy but
« Reply #41 on: March 03, 2021, 03:08:47 pm »
No, the bow's not clamped,  just sitting there, but yes, the handle should be square with the line on the wall. When I use it the way I described, the handle is supported near the ends but just resting on the tree.

With it held this way and drawn from where the archer will pull the string, once the limbs are balanced so that the hook perfectly follows the line, it's balanced well for most bow hand holds.

This setup works until you get tillered out to about how many inches? 
the top end of the line on the wall is offset from the handle center to your estimated bow hand pressurepoint? and the bottom of the line is directly over the pulley?


Quote
It just doesn't reveal where the dynamic balance point is under the hand. So I have an insert to place in the tree cradle that acts as a single pivot point, allowing the bow to pivot freely, and this pivot is able to be moved anywhere within the handle to find exactly where it balances as it's drawn, and limb strength adjustments can be made to fine tune balance and the balance point location.

When fine tuning the balance, the single pivot is placed at the best estimate of the bow hand pressure point? and the bow is free to rock. I take it that you would not expect to see the hook deviate from a line drawn from that pivot point to the center of the pulley, so you must be looking for the limbs tipping as you draw?

Please excuse the detailed questions. I am not being picky, I just want to understand your method better.  I must confess that I have read your past explanations without really truly grasping your method, and as I am not the sharpest tack in the box, I appreciate this detailed explanation (and many of the explanations you have made in the past.)




Offline Tradslinger

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Re: Brace height, this sounds crazy but
« Reply #42 on: March 03, 2021, 04:42:01 pm »
It looks like there’s a large limb length discrepancy also, is that correct?
yes sir, you are quite right. I was tired and used the wrong faint line to place the rest and the handle. I will have to reposition everything. blind in one eye and tired, a bad combination. embarrassing as heck. 

Offline TimBo

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Re: Brace height, this sounds crazy but
« Reply #43 on: March 03, 2021, 05:18:16 pm »
That's fine - before you know it, everyone will be copying your "semi-Yumi" style!

Offline Selfbowman

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Re: Brace height, this sounds crazy but
« Reply #44 on: March 03, 2021, 05:31:31 pm »
I think that’s why the English long bow came to be. Adjust hand placement to achieve tiller. When the King wanted 500 bows in a month what else do you do.
Well I'll say!!  Osage is king!!