Primitive Archer

Main Discussion Area => Bows => Topic started by: sleek on November 17, 2014, 08:30:39 pm

Title: pin knots in hickory
Post by: sleek on November 17, 2014, 08:30:39 pm
Had a bow break on me today. I was making a hickory elb and the back split open at a pin knot. The back was slightly rounded and so was the belly, though less so. The bow survived brace and 3/4 draw several times before letting go. Its still in one piece though the splinter is about one inch wide and 7 inches long, 1/16 thick. I glued it back down with tbIII and gonna wrap it just for fun, see how it holds up. I was only going for 50#@28.

Anyways,  yall notice hickory doesnt like little pin knots or is it just a problem with this stick?
Title: Re: pin knots in hickory
Post by: Hamish on November 17, 2014, 09:14:44 pm
I don't know about hickory stave bows, but hickory backing and pin knots on a narrow elb eventually equals a broken bow. On two occasions this happened despite leaving a little extra width to compensate for the pin.
Did you compensate for the pins?
              Hamish.
Title: Re: pin knots in hickory
Post by: Jim Davis on November 17, 2014, 09:32:24 pm
The grain doesn't run right up to a knot and stop, then start again on the other side. It goes around. If you are careful to not cut that growth ring anywhere, it should not be a problem. Check out the back of this hornbeam limb. Horn beam acts very much like hickory.

Jim  Davis
Title: Re: pin knots in hickory
Post by: sleek on November 18, 2014, 04:52:03 pm
I probably violated the ring around the knot.

I was looking at the belly and was musing how there aren't many ring violations on it, then had an idea. I floor bent it backwards and it seems to have a nice bend. I will string it up backwards and see if it will hold.
Title: Re: pin knots in hickory
Post by: sleek on November 18, 2014, 06:15:01 pm
Holy carp it works!
Title: Re: pin knots in hickory
Post by: Jim Davis on November 18, 2014, 06:31:03 pm
Very cool.