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Author Topic: tri lam horn tips  (Read 385 times)

Offline Zradix

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tri lam horn tips
« on: December 23, 2013, 11:48:00 AM »
Hi guys..

Quick question..

On a trilam..when you add horn tips, do you grind the taper through the belly lam?

With my bbo I left the belly 3/16" or so thick under the horn.

My tri lam belly lam will only have about 5/32" thickness at the tips at glue up.

The total thickness of all 3 lams will be 5/16"-11/32" at the tips.

Just curious how you guys would deal with it....does it really matter?


Thanks
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If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

Online Pat B

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Re: tri lam horn tips
« Reply #1 on: December 23, 2013, 11:53:00 AM »
I'd just be sure there were good mating surfaces. You can just flatten the back to match the overlay and glue them. I like to use rubber bands to clamp tip overlays after gluing. I get good, even pressure and a good glue line.
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Offline Bowjunkie

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Re: tri lam horn tips
« Reply #2 on: December 23, 2013, 01:39:00 PM »
Pick the angle you want/need to suit the bow's profile and your desire and grind away... I always grind through all layers of a tri-lam.

I then prep all gluing surfaces by gouging/roughing them up with a toothing plane iron, ran parallel with the limb's length... horn, same way. Smooth On.... spring clamps...lamp with a towel thrown over it for heat. Done.
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Offline Zradix

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Re: tri lam horn tips
« Reply #3 on: December 23, 2013, 01:42:00 PM »
Cool man!

Thank you.

Really just wasn't sure if It was smart to go through all layers and not have a "backer" left on the belly.
Sounds like it'll be fine.

...now if my wood would show up...lol
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If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

Offline Bowjunkie

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Re: tri lam horn tips
« Reply #4 on: December 23, 2013, 02:06:00 PM »
Yeah, if you do everything else right, you wont have a problem. I've never had one come loose, not even a little bit. Since it is ground at an angle, it will still be pulling down on the belly lam.... all of them actually. I'd post pics, but don't know if I can on my phone here.
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Offline Bowjunkie

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Re: tri lam horn tips
« Reply #5 on: December 23, 2013, 02:18:00 PM »


   
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Offline Zradix

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Re: tri lam horn tips
« Reply #6 on: December 23, 2013, 02:24:00 PM »
Oh cool!

Thanks Jeff.
Boy you really leave quite a bit hanging out there.
I woulda been afraid to do that...happy to know I can!

Do notice the grooves are lined up above the belly wood though..makes sense to me.

Man I'm excited to get started with this one!

Thanks again.   :thumbsup:
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If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

Offline Zradix

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Re: tri lam horn tips
« Reply #7 on: December 23, 2013, 02:29:00 PM »
Last time on my bbo I did like this...
 

Knowing you can have a little overhang opens up some possibilities....   :thumbsup:
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If some animals are good at hunting and others are suitable for hunting, then the Gods must clearly smile on hunting.~Aristotle

..there's more fun in hunting with the handicap of the bow than there is in hunting with the sureness of the gun.~ F.Bear

Online Roy from Pa

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Re: tri lam horn tips
« Reply #8 on: December 23, 2013, 02:34:00 PM »
However you want them to look...

   

   

   

   
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Offline LittleBen

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Re: tri lam horn tips
« Reply #9 on: December 23, 2013, 09:42:00 PM »
Quote
Originally posted by Bowjunkie:
 

   
I don't mean to hijack but how about some more pics of that bow! Looks like alot of reflex. Veyr cool.
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Online Roy from Pa

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Re: tri lam horn tips
« Reply #10 on: December 23, 2013, 10:19:00 PM »
Ben, trust me here. Bowjunkie makes sissy pants bows:) LOL

But they are perfect, flawless, and beautiful shooting bows.....
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Offline Bowjunkie

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Re: tri lam horn tips
« Reply #11 on: December 24, 2013, 10:27:00 AM »


Ben, the top bow with recurved outer limbs is a bamboo backed yew I made in '04. Her name is Rose :^)... not a tri-lam, but rather, a solid yew slat that was kerfed the last 12" or so of the limbs, and then a 12" long yew lam was inserted into the kerf, which allows it to be quite flexible during glue-up and afterwards, really 'maintains' the recurves... less prone to 'pull out' with use over time.

 

She is 64" ntn and 65# @ 28". Trapezoidal crossection with a fully radiused belly... the boo and yew makes her feather light in the hand and does she spit an arrow... whew.

Sorry, I don't have a full draw picture.

 
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