Main Discussion Area > English Warbow
What advantage is there in multiple laminations?
D. Tiller:
Mark, how about pulling the backing and core into reflex while glueing the two together. Then heating the belly and bending that to shape and finaly glueing them all together? I would think that would producs a bow with pre-stressed backing and core with a zero stressed belly. What do you think?
nick1346:
Hang on Mark you were there? Now I hoped you would be did we meet? Userames are always confusing in the flesh as no one uses them!
For all those that weren't there the shoot was pretty special. Some bloody good shooting, good distances set and a very relawed atmosphere, even better than last year.
grantmac:
--- Quote from: D. Tiller on May 29, 2008, 05:32:07 pm ---Mark, how about pulling the backing and core into reflex while glueing the two together. Then heating the belly and bending that to shape and finaly glueing them all together? I would think that would producs a bow with pre-stressed backing and core with a zero stressed belly. What do you think?
--- End quote ---
I don't think that would work because the point is that the belly is under tension when the bow is resting and under virtually no stress when braced. I think that if you laminated the core and belly into what braced profile you wanted (and tillered it before glue-up), then pulled it into reflex you would end-up with a very low-stress design.
This gives me much to think on and I'm probably not a good enough boyer to properly execute any of it.
Cheers,
Grant
radius:
i've been playing around alot with laminations the last couple months. .. One thing I have recently started to do, is glue up trilams this way:
First, the backing and the core together. When that has cured, I shape a riser to the curve of the stave and glue it in. When that has cured, I cut and sand in some fades, then glue a belly strip over that.
I wonder, if you were to glue the belly and core together, and then the backing to those like you have said in this post...would you omit the riser altogether?
grantmac:
No riser on a warbow or elb, so it's a moot point.
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