Author Topic: A few interesting notes..few pics on pg2  (Read 7971 times)

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Offline PEARL DRUMS

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A few interesting notes..few pics on pg2
« on: November 05, 2013, 01:11:32 pm »
I was in the process of building an R/D yew bow. Ma nature added plenty of deflex and I added reflex. I tillered the bow out and shot it a few times, very few. In the end I had no use for the draw feel or performance of the bow. So, in typical me fashion I decided to change it. If I wont use a bow as is, it doesn't stay as is no matter what. I decided to add statics to it and see what happens, just trying to get the "sponge" out of the draw. The bow had osage tip overlays glued on with Loctite Professional. Here is what I did.

1. a 25 minute gentle steam on the last 10" of tip.
2. 25 minutes clamped in my form
3. Both tips kept great shape after a 25 min steam and a 25 min clamp
4. The tip overlays never budged and still look new

In the end it worked like a charm. My take on it? Yes, you can add statics to a finished bow, yes the overlays will stay put and yes 25 minutes of clamp time is plenty, even for yew.
« Last Edit: November 06, 2013, 10:42:23 am by PEARL DRUMS »
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline Badger

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Re: A few interesting notes..
« Reply #1 on: November 05, 2013, 01:25:27 pm »
Yep, that reminds me, I have a yew bow needing some staics as well. I never leave mine all night. usually about an hour.

Offline PEARL DRUMS

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Re: A few interesting notes..
« Reply #2 on: November 05, 2013, 01:30:04 pm »
If it takes incredible heat to bend wood, wouldn't it also take that same amount to bend it back? That's my spin anyway. If I can grab it and not burn my hand, then it isn't going anywhere unless it wasn't properly heated in the first place.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline Slackbunny

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Re: A few interesting notes..
« Reply #3 on: November 05, 2013, 03:18:18 pm »
That's good to know about the overlays.

I usually only clamp until the piece is back to room temp. But I don't stress it for 24 hours to let it get equilibrium moisture content back.

Offline Ed Brooks

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Re: A few interesting notes..
« Reply #4 on: November 05, 2013, 04:34:42 pm »
Did it change the draw length, weight at all? Ed
It's in my blood...

Centralia WA,

Offline PEARL DRUMS

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Re: A few interesting notes..
« Reply #5 on: November 05, 2013, 04:39:56 pm »
Im sure the draw weight went up at least 15# Ed. I haven't touched the bow since last night and wont for another day or so. Ill check back in.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline wood_bandit99

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Re: A few interesting notes..
« Reply #6 on: November 05, 2013, 05:41:28 pm »
The thing I have noticed though is that if it bends enough in the area before you are trying to heat/steam bend then it rips cracks across the belly. I think it is because it compresses and the tries to stretch but can't enough and then cracks appear.
Yew and osage, BEST. WOODS. EVER! Shoot straight my friends!!!

Offline Danzn Bar

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Re: A few interesting notes..
« Reply #7 on: November 05, 2013, 06:15:25 pm »
Hey Pearl, please check back in when you know what it did to the draw length and weight. and any other conclusions you may have.
Thanks
Fellow static lover.....
Integrity is doing the right thing when no one is looking

Offline Blaflair2

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Re: A few interesting notes..
« Reply #8 on: November 05, 2013, 06:18:16 pm »
It looks sweet
Nothing ventured nothing gained

Offline NeolithicMan

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Re: A few interesting notes..
« Reply #9 on: November 05, 2013, 06:21:02 pm »
I have been wondering if I could add some recurve to a VERY long bow I made and have finished. You just gave me the courage to tinker with her a bit. thanks P D
John, 40-65# @ 28" Central New York state. Never enough bows, never enough arrows!

Stringman

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Re: A few interesting notes..
« Reply #10 on: November 05, 2013, 06:41:28 pm »
Wow! Now this has got me thinkin!!  ::)

Offline PEARL DRUMS

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Re: A few interesting notes..
« Reply #11 on: November 05, 2013, 06:45:12 pm »
Thinkin' is good!

I'll check back Bill the bassmaster
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline Gus

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Re: A few interesting notes..
« Reply #12 on: November 05, 2013, 06:50:42 pm »
Awesome Thread/Tip!

Thanks PD!

-gus
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Offline adb

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Re: A few interesting notes..
« Reply #13 on: November 05, 2013, 06:59:08 pm »
This is kinda the 'normal' recurve route for me. I don't add my bends until the bow is 80% tillered. Less wood bends easier.

What kind of glue did you use for the tip overlays, Chris?

I also find I lose about 30-40% of the initial curve.
« Last Edit: November 05, 2013, 07:04:15 pm by adb »

Offline Badly Bent

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Re: A few interesting notes..
« Reply #14 on: November 05, 2013, 10:54:33 pm »
Being the impatient type more times than not I only leave them clamped about as long as it takes to be cool to the touch too. I like your caul Pearlie, gonna have to copy that one as the one I use is a joke. If I'm lucky enough to not tiller limb twist into a bow I'll then usually end up getting twist in the tips with my crappy caul.  :-[
Post that yew bow when your done, wanna see how it comes out.
I ain't broke but I'm badly bent.