Author Topic: Bow design for a thumb-ring shooter  (Read 1022 times)

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Offline Stickhead

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Bow design for a thumb-ring shooter
« on: November 25, 2020, 12:35:18 pm »
Hey, all,
I知 going to build a bow for a novice archer friend.  He makes knives, so we池e going to horse trade. The thing is, he痴 missing his middle and ring fingers on his drawing hand, due to a shotgun attack years ago.  Therefore, I知 thinking a thumb ring would be perfect for him, right?

I知 thinking of making him a flip-tipped pyramid self bow, around 45#.  I致e never used a thumb ring, so I知 wondering:

1) Does shooting with a ring affect his draw length?
2) Are there any design considerations I should take into account (limb lengths, positive tiller, overall bow length, stiff vs. bendy, etc.)?

Thanks for any advice.
...Tom

Offline PatM

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Re: Bow design for a thumb-ring shooter
« Reply #1 on: November 25, 2020, 01:20:33 pm »
A thumb draw increases draw length, all else equal.   Make the arrow pass narrow.  I wouldn't worry about much else.

Offline simson

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Re: Bow design for a thumb-ring shooter
« Reply #2 on: November 25, 2020, 01:21:33 pm »
Normally drawlength is higher, as anchoring is not corner of mouth ...
I think every design (maybe besides ELB) is possible, but would suggest a shorter bow. String angle at drawhand is not the problem with a thumb ring.
Simon
Bavaria, Germany

Offline mmattockx

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Re: Bow design for a thumb-ring shooter
« Reply #3 on: November 25, 2020, 02:56:48 pm »
I知 thinking of making him a flip-tipped pyramid self bow, around 45#. 

Can he comfortably draw, hold and shoot a 45# bow? That's a lot of weight for a new archer, regardless of how big or tough he is.


Mark

Offline Stickhead

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Re: Bow design for a thumb-ring shooter
« Reply #4 on: November 25, 2020, 04:54:41 pm »
I知 thinking of making him a flip-tipped pyramid self bow, around 45#. 

Can he comfortably draw, hold and shoot a 45# bow? That's a lot of weight for a new archer, regardless of how big or tough he is.


Mark
I think so, but I値l have him try one from my wall before finishing his.

Offline Pat B

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Re: Bow design for a thumb-ring shooter
« Reply #5 on: November 25, 2020, 05:05:28 pm »
Left hand bow for a right hand shooter and right hand bow for a left hand shooter.  :OK
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC

Offline Allyn T

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Re: Bow design for a thumb-ring shooter
« Reply #6 on: November 25, 2020, 05:16:32 pm »
What Pat B said
In the woods I find my peace

Offline dylanholderman

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Re: Bow design for a thumb-ring shooter
« Reply #7 on: November 25, 2020, 06:44:53 pm »
I値l second the question about draw weight, remember thumb draw focuses most of that weight onto one finger so starting lower and working up might be the way to go

Offline Stickhead

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Re: Bow design for a thumb-ring shooter
« Reply #8 on: November 25, 2020, 07:22:47 pm »
What Pat B said
Oh, right!  I missed that.  Maybe I should try to make an ambidextrous one to give him options.

Or.... I suppose he could use a release.  Anybody have an opinion on that?

Offline Allyn T

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Re: Bow design for a thumb-ring shooter
« Reply #9 on: November 25, 2020, 08:34:49 pm »
Clay hayes has a recent video about thumb release and paradox on youtube. As far as a thumb ring goes that's pretty ancient I'd call it primitive
In the woods I find my peace