Stabil-Kore, Uniweft, thicker glass, parallel lamsinations

[buddyb]

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:

[Crooked Stic]

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.

[monterey]

Stabel Kore will be a better solution in my opinion but it's just opinion! 

Stic where are you finding tapered stab kore?

[Crooked Stic]

Oops shoulda put a comma in there meant .001 overall limb taper W/ stable core 

[buddyb]

Where do you guys buy your stabil-kor and what widths does it come in? How do you rip it it its to wide?

[Crooked Stic]

Kenny has it. I clamp it on a table top with a straight edge and cut it with a sharp box cutter.

[beachbowhunter]

I just got some from Rosewood that was 1.75" so I didnt have to trim it.

[monterey]

I cut it with a pair of scissors.   It's easy to work with. 

[beachbowhunter]

I just did a couple of limb glue-ups with it for the first time.  It's seems like really cool stuff.

[BigJim]

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

[buddyb]

How much extra draw weight does stabil-kore add to your bow when you add it to your stack?

[BigJim]

It is the equivalent to core for draw weight. Stabilcore is about .0165 thickness. Subtract equivalent from core material... in my experience.
BigJim

[buddyb]

Thanks Jim 

[buddyb]

BigJim, I received my stabil-Kor but it wasn't trimmed down to the 1.75, it was the full width. 

[BigJim]

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

[buddyb]

Ok thanks.

[Crooked Stic]

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.