Tri-lams

[Stiks-n-Strings]

Thinking about building a few tri lam bows. Boo backed static curve and a reflex/deflex.

Aproximately how thick do I want my belly lam after I pre tiller my main core for about a 50 to 60 pound bow.

Also some pics would be cool.

[Jeremy]

Depends on how thick your core is.  I think the last two I glued up the total was around .5".  I glue a power lam in as well.

[soopernate]

There is a tri lam in the buildalong section isnt there?  Bamboo backed osage trilam if I am remembering correctly.

[Jeremy]

Here's the build along:

 http://tradgang.com/noncgi/ultimatebb.php?ubb=get_topic;f=40;t=000080  

And here's a series of pics of me tillering a boo-walnut-osage trilam a few years ago

 http://smg.photobucket.com/albums/v212/fliksr/rd%20boo%20walnut%20and%20osage/

The asymmetric limbs have since gone out of tiller and I need to fix.  I guess it didn't like my 30+# draw much!

[Osagetree]

[Bert Frelink]

Here is a couple of pic's of a Tri-Lam static recurve I build last year, will be hunting with it this f fall.
It shoot awesome,


Good luck with your project.
Bert

[Stiks-n-Strings]

Bert how do get your boo to bend in the curve?

[Bert Frelink]

I boiled it for a few minutes and then bend it on the same jig as I bend the Walnut and Osage on.
Looking forward to seeing pic's of your project.
Bert.

[Stiks-n-Strings]

It will probably be this winter before I get started on this one. Right now I'm just pondering the idea and planning ahead.

Seems I'm always two or three bows ahead of myself in my head.  

[Johan van Niekerk]

Is a tri-lam basically just 3 layers of wood? No glass? Do you use the same glue as for making glass bows?

[Bert Frelink]

Yes Johan,
No Glass, the pictures are of a Bamboo/Wanut/Osage combination, and yes all I use to glue them up is Smoot-On only because I have it on hand for my glass bows, Urac 185 is also popular for glueing wood to wood.
Bert.