Author Topic: What do you think--5 cores  (Read 851 times)

Online Mad Max

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What do you think--5 cores
« on: November 18, 2019, 07:14:59 PM »
I built a R/D 64" a couple years ago and the plans called for 5 cores and 2 glass  for the stack.
What do you think?
Go to your corner Roy :tongue:
"nothing ventured ,nothing gained"

Offline Roy from Pa

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Re: What do you think--5 cores
« Reply #1 on: November 18, 2019, 07:33:44 PM »
7

Online Stagmitis

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Re: What do you think--5 cores
« Reply #2 on: November 18, 2019, 09:25:31 PM »
That's a lot of bowsnot!
Stagmitis

Offline Crooked Stic

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Re: What do you think--5 cores
« Reply #3 on: November 18, 2019, 10:11:50 PM »
More lams = less spring back out of the form so a bit better performance.
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Online Mad Max

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Re: What do you think--5 cores
« Reply #4 on: November 18, 2019, 10:27:19 PM »
Laminated beams are stronger.
so I'm with stic
"nothing ventured ,nothing gained"

Online monterey

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Re: What do you think--5 cores
« Reply #5 on: November 18, 2019, 11:23:36 PM »
Monterey

"I didn't say all that stuff". - Confucius........and Yogi Berra

Offline Roy from Pa

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Re: What do you think--5 cores
« Reply #6 on: November 19, 2019, 05:53:20 AM »
Now yunzs did it, way to go stickypops.

Ole Shreddy will be making 10 core lam bows now...

But....

All those glue joints are dead weight and slow the bow down.

Offline Crooked Stic

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Re: What do you think--5 cores
« Reply #7 on: November 19, 2019, 06:56:07 AM »
Now you gonna get him confused talkin about dead glue joints.
High on Archery.

Offline Roy from Pa

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Re: What do you think--5 cores
« Reply #8 on: November 19, 2019, 08:29:02 AM »
The epoxy dries hard and doesn't flex well.

Online Mad Max

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Re: What do you think--5 cores
« Reply #9 on: November 19, 2019, 08:31:13 AM »
Quote Roy ---All those glue joints are dead weight and slow the bow down.

But it takes less stack
"nothing ventured ,nothing gained"

Offline Roy from Pa

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Re: What do you think--5 cores
« Reply #10 on: November 19, 2019, 09:54:06 AM »
Let's wait for Clem to roll outta bed n see what he says...

Offline Flem

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Re: What do you think--5 cores
« Reply #11 on: November 19, 2019, 10:15:32 AM »
Why not just make an epoxy and fiberglass Bow?

Online Mad Max

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Re: What do you think--5 cores
« Reply #12 on: November 19, 2019, 10:33:29 AM »
You guys don’t know nuffin
"nothing ventured ,nothing gained"

Offline Flem

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Re: What do you think--5 cores
« Reply #13 on: November 19, 2019, 10:41:19 AM »
Yeah but if you have achieved enlightenment, everything is nuffin.

Online Mad Max

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Re: What do you think--5 cores
« Reply #14 on: November 19, 2019, 10:55:08 AM »
The question is
What do you think——5 cores
"nothing ventured ,nothing gained"

Online Mad Max

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Re: What do you think--5 cores
« Reply #15 on: November 19, 2019, 11:00:10 AM »
I was going to let you do the inlightinment  :biglaugh:
"nothing ventured ,nothing gained"

Offline Roy from Pa

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Re: What do you think--5 cores
« Reply #16 on: November 19, 2019, 11:47:22 AM »
ya

Online Shredd

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Re: What do you think--5 cores
« Reply #17 on: November 19, 2019, 01:00:22 PM »
I think it depends on how thick your limb is going to be and the curvature that you put in it...  Thinner limb may do well with 4 cores...  A flat limb with no curvature will do well with one core... I talked with an very experienced  bowyer that said, "people get carried away with cores...  They just fill the void...  The glass does all the work"...
« Last Edit: November 19, 2019, 02:01:57 PM by Shredd »

Offline Flem

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Re: What do you think--5 cores
« Reply #18 on: November 19, 2019, 01:01:07 PM »
5,7, sure. Sounds like a good plan if you got a bunch of skinny lams and expired glue collecting dust.
I prefer 2, or 3 max, but I'm making walking sticks that look like Bows.
It would be interesting to make 2 bows using the same wood and stack, but have a 3 lam and a 7 lam and compare the two for feel and speed.

Online monterey

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Re: What do you think--5 cores
« Reply #19 on: November 19, 2019, 03:17:48 PM »
My RDs up to 50# have four cores.  Over that, five.

But, maybe five, six or seven in a 40# bow would be a good idea???  I don't put much stock in the weight of glue lines or number of glue lines.  In the overall scheme of things they probably don't have much to do with limb weight (as compared to osage cores vs elm, etc.).  Bows built with four bamboo flooring lams probably have more glue in them than a bow with 5, 6 or 7 maple lams.

Maybe I'll try 7 core laminations in my next personal bow of 35 or 40#.
Monterey

"I didn't say all that stuff". - Confucius........and Yogi Berra

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