Trad Gang
Main Boards => The Bowyer's Bench => Topic started by: Mad Max on November 18, 2019, 07:14:59 PM
-
I built a R/D 64" a couple years ago and the plans called for 5 cores and 2 glass for the stack.
What do you think?
Go to your corner Roy :tongue:
-
7
-
That's a lot of bowsnot!
-
More lams = less spring back out of the form so a bit better performance.
-
Laminated beams are stronger.
so I'm with stic
-
7
Shouldn't that be "7 ???" 8^)
-
Now yunzs did it, way to go stickypops.
Ole Shreddy will be making 10 core lam bows now...
But....
All those glue joints are dead weight and slow the bow down.
-
Now you gonna get him confused talkin about dead glue joints.
-
The epoxy dries hard and doesn't flex well.
-
Quote Roy ---All those glue joints are dead weight and slow the bow down.
But it takes less stack
-
Let's wait for Clem to roll outta bed n see what he says...
-
Why not just make an epoxy and fiberglass Bow?
-
You guys don’t know nuffin
-
Yeah but if you have achieved enlightenment, everything is nuffin.
-
The question is
What do you think——5 cores
-
I was going to let you do the inlightinment :biglaugh:
-
ya
-
I think it depends on how thick your limb is going to be and the curvature that you put in it... Thinner limb may do well with 4 cores... A flat limb with no curvature will do well with one core... I talked with an very experienced bowyer that said, "people get carried away with cores... They just fill the void... The glass does all the work"...
-
5,7, sure. Sounds like a good plan if you got a bunch of skinny lams and expired glue collecting dust.
I prefer 2, or 3 max, but I'm making walking sticks that look like Bows.
It would be interesting to make 2 bows using the same wood and stack, but have a 3 lam and a 7 lam and compare the two for feel and speed.
-
My RDs up to 50# have four cores. Over that, five.
But, maybe five, six or seven in a 40# bow would be a good idea??? I don't put much stock in the weight of glue lines or number of glue lines. In the overall scheme of things they probably don't have much to do with limb weight (as compared to osage cores vs elm, etc.). Bows built with four bamboo flooring lams probably have more glue in them than a bow with 5, 6 or 7 maple lams.
Maybe I'll try 7 core laminations in my next personal bow of 35 or 40#.
-
If you think glass does all the work build a bow with Aboo cores. Build another with Yew edge grain cores everything the same except the cores and see witch one performs better.
-
So clear glass and 2 veneers and 2 cores is =4+2 glass=6
A unglued stack is not stiff until it is glued.
laminated beams for homes are better.
So 1 more lam is not going to hurt anything.
-
I know red elm cores are faster than walnut and maple cores.
:wavey:
-
I know red elm cores are faster than walnut and maple cores.
:wavey:
Good to know :thumbsup:
-
Dah master from Missouri likes red elm too...
-
Red elm edge grain is very good core. I have a big slab of it myself. I dont know that it would too much faster than maple. Walnut maybe. The yew is pretty stiff.
-
I run 4-5 cores on all longbows. I say this because the veneers are part of the core. The core is everything between the glass. 2 veneers, 2 tapered lams and sometimes an additional parallel.
I’m sure your plans you refer too mean 5 cores, including any veneers. Surely you wouldn’t have 2 veneers and 5 additional core lams :dunno:
BTW I have noticed no difference between a bow with few thicker lams and a bow with more thinner ones. All else being equal. Nowadays I use more thinner ones as I feel it is more durable.
-
Thanks for that perspective.
-
BTW I have noticed no difference between a bow with few thicker lams and a bow with more thinner ones. All else being equal. Nowadays I use more thinner ones as I feel it is more durable.
Chad you wont see it with the eye and barely with a chrono Just sayin.
-
Holm-made
I’m sure your plans you refer too mean 5 cores, including any veneers. Surely you wouldn’t have 2 veneers and 5 additional core lams :dunno:
YES------- 5 total with veneers + glass
I'm with stic