Author Topic: Lamination Splice Question  (Read 341 times)

Offline gudspelr

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Lamination Splice Question
« on: April 06, 2010, 12:19:00 AM »
So, I have a quick question about splicing my lams.  Don't know if I'm just dumb or if they were supposed to come this way, but all of my laminations (except the glass) came in two pieces.  I know I need to create a proper splice and have searched around-I THINK I know what I'm supposed to do, but wanted to double check with you guys.  I think it's called a "skive" splice?  The recipe my buddy gave me for my R/D longbow calls for my back glass, two tapers, then parallel before the riser and one more parallel-lastly, belly glass.  This is what I'm thinking I need to do:

 


Is that correct?  Also, I don't have a disc sander as I saw in Kennym's post (nice way of doing it)-can I just pick an angle, clamp a block on top of my lams and follow the angle with a little hand saw?  I was also hoping you could give some advice on how far apart each splice needs to be from the other?  I think I read somewhere they should NOT be one positioned directly on top of the other.

Thanks so much for the help.  I'm hoping to get a few more supplies and try to glue up sometime this week.


Jeremy
"Have nothing in your house that you do not know to be useful, or believe to be beautiful."
- William Morris

Craftsmen strive to make their products both.

Offline Apex Predator

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Re: Lamination Splice Question
« Reply #1 on: April 06, 2010, 08:56:00 AM »
Your diagram should be fine.  Cut/sand the two lams together on a square line across the lams.  The shallower angles will give you more glue surface.  Staggering will work, but is not needed because the joints will be behind the thickest part of your riser.
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Offline Jason Scott

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Re: Lamination Splice Question
« Reply #2 on: April 06, 2010, 09:20:00 AM »
Right or wrong I stack mine on top of each other. I find no need to stagger or offset them. I have thousands of shots through mine with the skive splices lined up and all are oriented in the same direction. My splices are in the center of the bow. If you offset them it would not hurt though. Just be mindful about the orientation because if your form or riser design is made so that the top limb is engineered into it, pre-chosen before glue up so to speak, then offsetting one of the tapers could work for or against you. The way I do it, I don't pick a top limb until I rough cut/sand and brace the bow. Then I lay out the riser. Some riser shapes are designed so that you have to pick a top limb before glue up and how you offset the taper splices should be thought about under those circumstances so the bottom limb is stiffer.

Even with a hammer and chisel I could not make the splices separate with all the smooth on and gluing surfaces.

Offline gudspelr

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Re: Lamination Splice Question
« Reply #3 on: April 07, 2010, 11:28:00 PM »
Thanks guys-I appreciate the help.  Will be finishing the splices tonight and hopefully glueing tomorrow.
"Have nothing in your house that you do not know to be useful, or believe to be beautiful."
- William Morris

Craftsmen strive to make their products both.

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