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Author Topic: ERC design suggestions (edit:pics added)  (Read 8408 times)

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Offline simson

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ERC design suggestions (edit:pics added)
« on: May 28, 2013, 04:34:34 pm »
Got my hands on an ERC stave about 70" long and 2" wide. Three big dead knots / holes in it, not avoidable without grain violation (grain run out).

What is a matching design for ERC? ELB? Flat? ....

I think I can also split off a belly split, perhaps with 55"-60", about ½" thick.
« Last Edit: May 29, 2013, 03:26:48 pm by simson »
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Simon
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Offline Jmilbrandt

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Re: ERC design suggestions
« Reply #1 on: May 28, 2013, 05:24:36 pm »
All my erc bows have been flat bellies around 66" long. Seems to work well, I've never tried anything different with it though.
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Offline autologus

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Re: ERC design suggestions
« Reply #2 on: May 28, 2013, 05:27:53 pm »
How wide did you make your ERC bows, I have some staves that will be ready in a month or so I'm itching to get started to work on.

Grady
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Offline CORIUS

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Re: ERC design suggestions
« Reply #3 on: May 28, 2013, 05:33:51 pm »
What is erc?
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Offline Joec123able

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Re: ERC design suggestions
« Reply #4 on: May 28, 2013, 05:35:39 pm »
I would say flat belly is your best bet I did see someone posted a cedar ELB with rounded belly but I have a feeling that wouldn't last to long
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Offline autologus

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Re: ERC design suggestions
« Reply #5 on: May 28, 2013, 05:40:27 pm »
Quote from: CORIUS on May 28, 2013, 05:33:51 pm
What is erc?

ERC = Eastern Red Cedar

Grady
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Offline Jmilbrandt

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Re: ERC design suggestions
« Reply #6 on: May 28, 2013, 06:36:19 pm »
Mine were 1" 5/8 all between 30 and 45 pounds.
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blackhawk

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Re: ERC design suggestions
« Reply #7 on: May 28, 2013, 08:31:59 pm »
SINEW !!!!! ;)  8)
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Offline Josh B

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Re: ERC design suggestions
« Reply #8 on: May 28, 2013, 09:06:38 pm »
Quote from: Joec123able on May 28, 2013, 05:35:39 pm
I would say flat belly is your best bet I did see someone posted a cedar ELB with rounded belly but I have a feeling that wouldn't last to long


What? ???  Care to explain that prediction?  Or better yet, when and what scenario do you think a rounded belly would be appropriate?  Josh
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Offline AH

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Re: ERC design suggestions
« Reply #9 on: May 28, 2013, 09:07:32 pm »
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Offline Joec123able

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Re: ERC design suggestions
« Reply #10 on: May 28, 2013, 09:11:43 pm »
Quote from: Gun Doc on May 28, 2013, 09:06:38 pm
Quote from: Joec123able on May 28, 2013, 05:35:39 pm
I would say flat belly is your best bet I did see someone posted a cedar ELB with rounded belly but I have a feeling that wouldn't last to long


What? ???  Care to explain that prediction?  Or better yet, when and what scenario do you think a rounded belly would be appropriate?  Josh


I guess you didn't read what I said. I said I saw a cedar ELB posted on here with a rounded belly
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Offline Josh B

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Re: ERC design suggestions
« Reply #11 on: May 28, 2013, 09:19:48 pm »
I read it alright.  The part that I'm referring to is why you don't think a rounded belly elb would last very long.  What I'm wondering is if you understand what advantage a rounded belly offers?  That is the clarification that I'm looking for.  Josh
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Offline Joec123able

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Re: ERC design suggestions
« Reply #12 on: May 28, 2013, 09:29:42 pm »
Quote from: Gun Doc on May 28, 2013, 09:19:48 pm
I read it alright.  The part that I'm referring to is why you don't think a rounded belly elb would last very long.  What I'm wondering is if you understand what advantage a rounded belly offers?  That is the clarification that I'm looking for.  Josh


Ohh well I'm trying to say I don't think cedar is the best candidate for an ELB let's face it it's not very strong under the extreme compression an elb would put it under
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Offline SLIMBOB

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Re: ERC design suggestions
« Reply #13 on: May 28, 2013, 10:02:44 pm »
Sinew...Curious on the defense of the flat v rounded belly as well.
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Offline DavidV

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Re: ERC design suggestions
« Reply #14 on: May 28, 2013, 10:53:29 pm »
Quote from: Joec123able on May 28, 2013, 09:29:42 pm
Quote from: Gun Doc on May 28, 2013, 09:19:48 pm
I read it alright.  The part that I'm referring to is why you don't think a rounded belly elb would last very long.  What I'm wondering is if you understand what advantage a rounded belly offers?  That is the clarification that I'm looking for.  Josh


Actually it's the exact opposite, ERC has great compression strength but poor tension strength. Perfect candidate for ELB's.


Ohh well I'm trying to say I don't think cedar is the best candidate for an ELB let's face it it's not very strong under the extreme compression an elb would put it under
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