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Author Topic: My board bow (build along?)  (Read 88602 times)

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Offline Marin

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Re: My board bow (build along?)
« Reply #75 on: August 04, 2016, 03:26:46 pm »
Do I trap the back before or after carving belly taper?
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Offline cantshoot

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Re: My board bow (build along?)
« Reply #76 on: August 04, 2016, 03:45:10 pm »
Quote from: Marin on August 04, 2016, 03:25:41 pm
The length you gave me: 8 inches

Heh
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Offline Marin

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Re: My board bow (build along?)
« Reply #77 on: August 04, 2016, 04:28:25 pm »
I got the measurements for the design from bubby earlier. Now it is probably more like 7 15/16 of an inch but it is still basically the measurements that bubby suggested my bow be.
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Offline bubby

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Re: My board bow (build along?)
« Reply #78 on: August 04, 2016, 05:30:19 pm »
2" fades and 4" handle 8" works just fine, with a board you start with roughly 3/4" in thickness, the starting limb thickness is less than that under 1/2" and the actual fades are the transition to the working limb as everything thicker than the limb shouldn't be bending. A smooth radiused fade that extends past the riser block is how i do it just like in the build a long, heck most of that block gets removed when shaped anyway right
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Offline Knoll

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Re: My board bow (build along?)
« Reply #79 on: August 04, 2016, 07:50:11 pm »
Trap back after belly taper done.
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... alone in distant woods or fields, in unpretending sproutlands or pastures tracked by rabbits, even in a bleak and, to most, cheerless day .... .  I suppose that this value, in my case, is equivalent to what others get by churchgoing & prayer.  Hank Thoreau, 1857

Offline Danzn Bar

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Re: My board bow (build along?)
« Reply #80 on: August 04, 2016, 08:04:02 pm »
Quote from: Knoll on August 04, 2016, 07:50:11 pm
Trap back after belly taper done.

Yep I've trapped a few backs and in my experience, it should be about the last thing you do just before you make weight.  If you do it too early in the tillering process you loose a lot of limb width very quickly.
DBar 
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Offline loon

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Re: My board bow (build along?)
« Reply #81 on: August 04, 2016, 08:05:46 pm »
Weird... I'd expect it to throw the tiller off. good to know..
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Offline Danzn Bar

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Re: My board bow (build along?)
« Reply #82 on: August 04, 2016, 08:20:27 pm »
Again in my experience..... trapping the back you won't loose much weight maybe 2-4 lbs on a 30 deg trap.  what it does do.. is to lessen the mass weight and help a compression weak wood by lessening the back tension strength. not over powering the belly(frets showing up)...Trapping works good on woods like hickory and hackberry...which are tension strong woods.
Wow I hope you understand my explanation.......:)
DBar
« Last Edit: August 04, 2016, 08:26:59 pm by Danzn Bar »
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Offline Marin

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Re: My board bow (build along?)
« Reply #83 on: August 04, 2016, 10:15:24 pm »
I understand your explanation Danzn. Ear.
Bubby, do I need to redo my handle or just continue with shaping? If I make the transition perfect, it should work fine right?
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Offline Knoll

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Re: My board bow (build along?)
« Reply #84 on: August 04, 2016, 10:24:29 pm »
Quote from: Danzn Bar on August 04, 2016, 08:04:02 pm
Quote from: Knoll on August 04, 2016, 07:50:11 pm
Trap back after belly taper done.

in my experience, it should be about the last thing you do just before you make weight.  If you do it too early in the tillering process you loose a lot of limb width very quickly.
DBar

ahhhh, that makes sense to me..
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... alone in distant woods or fields, in unpretending sproutlands or pastures tracked by rabbits, even in a bleak and, to most, cheerless day .... .  I suppose that this value, in my case, is equivalent to what others get by churchgoing & prayer.  Hank Thoreau, 1857

Offline bubby

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Re: My board bow (build along?)
« Reply #85 on: August 04, 2016, 11:41:02 pm »
Keep shaping
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failure is an option, everyone fails, it's how you handle it that matters.
The few the proud the 27🏹

Offline Marin

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Re: My board bow (build along?)
« Reply #86 on: August 06, 2016, 07:53:12 pm »
Kay I shaped one of the fades and was able to get the transition almost perfect. I got rid of the lip but, as I was using that rapsi technique of rounding the corners and then rapsing down the crown made by it, I found that my transitions almost curves from one side to the other. It isn't major but you can see it. Here's a pic of it.it doesn't affect the bow does it?
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Offline Marin

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Re: My board bow (build along?)
« Reply #87 on: August 06, 2016, 07:54:04 pm »
Here's some more pics. Tell me how you like my rasping job.
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Offline bubby

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Re: My board bow (build along?)
« Reply #88 on: August 06, 2016, 08:35:34 pm »
Getting better Marin, focus on thinning the limbs down that is going to mean some more fade work when all is said and done
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failure is an option, everyone fails, it's how you handle it that matters.
The few the proud the 27🏹

Offline ajooter

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Re: My board bow (build along?)
« Reply #89 on: August 06, 2016, 09:34:40 pm »
Like Bubby said...those fades from the handle will round out nicely as you bring the limb thickness down.  Using the a rasp with a rounded edge works great on fades....even a round file.
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