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Hickory Board Buildalong

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Newbowyer:
I decided to do a buildalong because I need help. Lots of it. This is just my second bow, my first one went great so I was inclined to build another.

Should I be worried about the knot? I can get about a good 70 inch section of this 9 foot board ( Originally thought it was 8) that only has like 4 pea sized knots. My question is the best section of the board has this knot in it ( big one in pic) .  Will it affect my bow?  I can use other parts of the board but they arent as good.

Is there such a thing as too thick of growth rings?


Knot area unusable. Yay or neigh?

 is it possible to get the bow to almost final tiller, if I like enough I can buy some boo and glue up some reflex or do I have to glue up reflex before I tiller. I realize if I backed it with boo I would have to re tiller but I dont want to use boo if I dont know the bow will survive?


Thanks! Hopefully I get some stuff done with it this weekend.

bullcreekboy:
CC, I am not an expert on board bows. The first bow I made was an unbacked board bow but I haven't made one since. I have made some bamboo boo backed ipes and some bamboo backed osage bows though. Hickory is some pretty tough stuff when it comes to tension strength. I have heard of guys getting away with a lot grain wise on a hickory board. You could get that piece floor tillered and bending nicely and then back it with another piece of hickory and glue up some reflex in it. I have heard that people have had mixed resulted with backing hickory with boo. I have heard the boo will over power the hickory but that is only what I have heard.   

Newbowyer:
So it would be hickory backed hickory?

Is backing it with silk or linen an option? Or should I just leave it unbacked?

The rest of the board has quite a few little knots. The one in picture is the biggest one.

D. Tiller:
I just got done building a laminated Hickory backed Yellowheart longbow that pulls 65# at 28". Shoots them really well and the rings are violated numerous times on the back of the bow. I would say if its hickory you can get away with this up to arround 65#. Dont think I would push the wood farther thant that with ring violations though.

Best thing, if you are worried about it, back it with silk or some other backing. It may save your bow from blowing out on you. From what I understand these types of backing are best for stopping wood from blowing under tension.

D. Tiller

bullcreekboy:
CC,
Yeah that is what it would be. A hickory backed hickory. I have heard of that before. That would be a good way to glue in some perry reflex.

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