Osage belly, amber action boo core lams, backed with bamboo. Boo core lams I got from Ole Troy Boy Breeding, Troy does very nice work.. 64" tip to tip, shooting for 40 #. 1 1/4" wide at the flares, and I hold the 1 1/4 width out 6 inches past the flares, then do a straight taper to 1/2 wide at the tips. The bottom limb will be 1 inch shorter than the top limb. The belly lams are Z spliced together, the top limb Osage belly lam is 5/16th thick and the bottom limb Osage belly lam is 1/4 thick. The top limb action boo core lam is 1/4 thick at the riser, tapered to 1/8th at the tip. The bottom limb action boo core lam is 1/4 at the riser, tapered to 1/16th at the tip. I make them this way because I tiller for equal limb timing and since more strain is applied to the top limb while tillering and shooting, the little extra thickness yields a near zero tiller when done. I set my tiller tree up to simulate a predetermined 3/8th high nocking point. Just how I do it, not saying everyone has to make their bows like I do.
I don't Z splice the core lams. Before glue up, I lay everything together, run a string down the center of the boo backing which has been pre cut to the actual bow dimensions. Then clamp it down and I drill 2 holes in the handle area and a hole on each side of the limbs out by the tips. After the glue up, I put tooth picks into all those holes to keep everything aligned.
I flip the tips with heat before glue up, gives the bow a sweet little recurve at the tips.
I wrap the bow with plastic wrap to keep the form and clamps clean.
Topic: How about a tri lam build along... (Read 8620 times)
