Author Topic: spliced lams  (Read 297 times)

Offline M P Clark

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spliced lams
« on: May 09, 2014, 06:42:00 AM »
Spliced Lam Question:

I'm wanting to do spliced laminations for my next build, but had a question.

Can the spliced lams act as the main laminations in the limb, instead of using solid lams as the core with the spliced lams as veneers?  The longbow I'm wanting would have a basic stack of 2 tapers (1 reversed) and 1 parallel.  

[belly](taper - wedge - parallel - reverse taper)[back]

So basically: could I use the spliced lams as the taper and reverse taper with a solid parallel.

OR

Should I just add veneers to the back and belly of the bow?

Instead of using wood for the parallel, would you suggest using carbon, stable core, core tuff, and uni-welt.  Kinda like the idea of a color strip running down the edge of the limb.

Thanks

Offline Troy D. Breeding

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Re: spliced lams
« Reply #1 on: May 09, 2014, 07:31:00 AM »
I use veneers (basically because I make them). If the parallel you are currently using is as thick as the two veneers then simply switch to veneers and leave out the parallel.

When I make a recurve I switch out the parallel for two veneers. Simple and easy to handle.
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Offline Ice Mike

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Re: spliced lams
« Reply #2 on: May 09, 2014, 09:35:00 AM »
I'm curious about this as well. I have built about 3 different jig/sled combos to make a tapered core but have not gotten a satisfactory solid tapered core yet. I don't have enough core wood to try again but I do have enough to make the core in two sections tapered if it would not kill the structural integrity of the bow by having a spliced core.

Could some of you laminated wood bow experts clarify?

Eta...my laminated bows are all wood. No glass or carbon.

Online Roy from Pa

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Re: spliced lams
« Reply #3 on: May 09, 2014, 09:49:00 AM »
Mike I make a lot of all wood tri lams and all of my core lams thus far have been spliced at the center of the handle, it doesn't hurt a thing and makes them easier to taper being two pieces.

Offline Troy D. Breeding

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Re: spliced lams
« Reply #4 on: May 09, 2014, 10:18:00 AM »
I would think splicing a taper in any other place than the handle could be risky. Butting them in the handle allows for a ridgid area to handle the splice.

At .030" or less the joint is in very little stress with a veneer.
Troy D. Breeding
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Offline Wolftrail

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Re: spliced lams
« Reply #5 on: May 10, 2014, 11:00:00 PM »
I have done it in the handle, I agree with Troy 100%.

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