Trad Gang
Main Boards => The Bowyer's Bench => Topic started by: buddyb on March 31, 2020, 10:25:43 AM
-
I need to be building lighter bows now days, in the 40ish lb range. Up until this last bow I made they were all 50+ lbs and I used .050 glass back and belly and didn't have any lateral instability issues. However on this last bow I built 42# I could feel the limbs were not quite as stabile as my other bows. The last one was 60" takedown recurve built with .040 glass back and belly, .105-.002 taper on the belly and .050 parallel on the back with 1 5/8 width at the fades and 5/8 at the string nocks.
What would be better, add stabil-kore to the limbs or Uniweft (Uniweft is .030 at Bingham's), use 3 parallel lams and no tapers, or use .040 glass on the back and .050 glass on the belly and stick with a taper and parallel lam in the core?
Plus my wife would like a 35# bow. These would all be takedown recurve bows.
This was the bow:
-
I go with .001 taper stabile core and .040 glass full working limb and taper 10 in. back. Finished width is 1 5/8s 5/8 at grooves.
-
Stabel Kore will be a better solution in my opinion but it's just opinion! :dunno:
Stic where are you finding tapered stab kore?
-
Oops shoulda put a comma in there meant .001 overall limb taper W/ stable core :biglaugh:
-
Where do you guys buy your stabil-kor and what widths does it come in? How do you rip it it its to wide?
-
Kenny has it. I clamp it on a table top with a straight edge and cut it with a sharp box cutter.
-
I just got some from Rosewood that was 1.75" so I didnt have to trim it.
-
I cut it with a pair of scissors. It's easy to work with.
-
I just did a couple of limb glue-ups with it for the first time. It's seems like really cool stuff.
-
We sell the stabilcore as well. I like to use it in my curves, but don't feel the need in a longbow.
I also cut them to 1.75" before shipping.
Thanks, BigJIm
-
How much extra draw weight does stabil-kore add to your bow when you add it to your stack?
-
It is the equivalent to core for draw weight. Stabilcore is about .0165 thickness. Subtract equivalent from core material... in my experience.
BigJim
-
Thanks Jim :bigsmyl:
-
BigJim, I received my stabil-Kor but it wasn't trimmed down to the 1.75, it was the full width. :o
-
buddyb, that was a mistake on our part. I apologize. I normally cut the entire roll all at once, but Preacher had your order to fill and the new coil had just came in. He didn't realize that I cut the roll first and stripped off enough pieces to fill orders.
Lay a strip of aluminum down on top of it where you want to cut it and clamp it down... run a razer knife along the edge of the aluminum .. or steel a few times and it will cut easily.
Thanks, BigJim
-
Ok thanks.
-
I got two strips of Gordons brown 1.75x.040 fixin to put in a curve. The last curve I built was BP glass. Wondering if the 1.75 has variation like the 1.5 we been getting.