Author Topic: Narrowing limbs  (Read 1471 times)

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Offline DC

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Narrowing limbs
« on: June 17, 2018, 01:28:51 pm »
When you are narrowing limbs what kind of a cross section would you stop at, square, elb 5/8? This is a generic question but I'm thinking of more toward the outer limbs and tips.

Offline Badger

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Re: Narrowing limbs
« Reply #1 on: June 17, 2018, 04:16:54 pm »
In the outer 8" or so I usually end up with an elb type cross section rounded belly.

Offline Dances with squirrels

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Re: Narrowing limbs
« Reply #2 on: June 18, 2018, 04:20:14 am »
Same as Badger.

Even at its widest though, my whole bow belly is radiused, corners rounded, and then that ellipse cross section gets narrower and more rounded or elb-ish if you will as it nears the tips.

I don't stop if I can still see flats or corners anywhere. Actually, I usually lose those shapes about halfway through tillering.
Straight wood may make a better bow, but crooked wood makes a better bowyer

Offline Eric Krewson

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Re: Narrowing limbs
« Reply #3 on: June 18, 2018, 06:45:00 am »
Me too, very narrow round belly tips with a more depth.

Offline Aaron H

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Re: Narrowing limbs
« Reply #4 on: June 18, 2018, 07:39:20 am »
When building statics, I like to keep the back narrow and my belly flat and wide (trapezoidal cross section),  and/or groove the belly so that the string has good surface contact to rest on.  Seems to help with string alignment for me. 

Offline Jim Davis

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Re: Narrowing limbs
« Reply #5 on: June 18, 2018, 08:58:27 am »
I think it was Paul Klopsteg or Clarence Hickman who first warned against making the tips narrower than their depth. The tips are apt to warp off sideways in that configuration. I only tried it once, but the tips did take some sideways set.
Jim Davis

Kentucky--formerly Maine

Offline DC

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Re: Narrowing limbs
« Reply #6 on: June 18, 2018, 10:40:30 am »
I figured that narrower than deep would be risky but I thought maybe square would be the saw off point but i'm happy with about 5/8. It would be a safety factor against twisting. I guess recurves are even more sensitive to this than a straight bow?

Offline George Tsoukalas

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Re: Narrowing limbs
« Reply #7 on: June 19, 2018, 07:11:17 am »
I haven't thought about that. I just let it flow. :) Jawge
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If you ain't breakin' you ain't makin!