Author Topic: BANG !! I hate short bows New Photo pg 2 (Read 4016 times)

RyanY · « **Reply #15 on:** February 05, 2013, 09:25:35 pm »

I'm thinking the same thing as pearly in that it might have been too dry. Just a guess but it also looks like the inner limb is fairly thick and may not have been doing its fair share causing too much bend in that spot. Sorry to see it go. After just the first layer of sinew I've ever layed this weekend it stinks that so much work goes into it to see it break. :/

Keenan · « **Reply #16 on:** February 05, 2013, 09:37:00 pm »

Sorry for your bow
57" NTN with a 6=8" non bending handle was the most likely death of the bow. That is just to much bend for that little amount of working limb.

chamookman · « **Reply #17 on:** February 06, 2013, 05:14:24 am »

Bummer - sorry to hear that Darryl ! Time to pick up the next piece and go to work. Bob

Del the cat · « **Reply #18 on:** February 06, 2013, 05:19:52 am »

Commisserations ... you obviously haven't read that bit that says sinew backing makes a bow virtually unbreakable!

Smae happened to me on the only sinew backed bow I did

... lot of work for no reward. I daresay I'll have another go sometime.
Del

Pappy · « **Reply #19 on:** February 06, 2013, 05:49:24 am »

Sorry about that DQ, What Keenan said,that is asking a lot from such a short piece of wood ,sinew will help hold one together but it ant the cure all.

Pappy

blackhawk · « **Reply #20 on:** February 06, 2013, 07:52:16 am »

Suck....that one was looking awesome.....I'm a lil baffled and I'm not 100% certain as to why it broke. Everything looked good design wise on it honestly IMO. I've made 55.5" stiff handled unbacked bows pull 26" with retained setback...but that was osage. Matts right..try osage

Oglala Bowyer · « **Reply #21 on:** February 06, 2013, 09:31:12 am »

DQ I'm a shortie builder and just gotta say "been there done that". It happens occasionally. But, I have had tremendous results with sinew as well. Judging from the pics, it appears that was a lot of handle for that particular shortie IMHO. Try it again.

Old timber bows · « **Reply #22 on:** February 06, 2013, 09:37:58 am »

DQ sorry to here about that it was a sweet looking bow it happens to all of us grab a nother stick and start another nother one take care

DQ · « **Reply #23 on:** February 06, 2013, 04:57:07 pm »

Thanks for your condolances, guys. LOL Just another bump in the learning curve.

I cut a cross section of the limb to see what I had. There is 1/16 inch of sinew at the place the limb blew up. This taperes to 1/32 inch at the limb tip. I don't have much experience with sinew but it looks good to me.

I agree that I was asking for too much bend in that limb length. Also, I checked the humidity in my shop. 38% @50 degrees. So, according to the chart, moisture content of the wood was about 7 1/2 percent. Pretty dry! That could be the problem too.

Anyway, onward and upward. I hope.

DQ

PatM · « **Reply #24 on:** February 06, 2013, 06:50:11 pm »

Yep, too thin for the wood thickness and type. You're not moving the neutral plane much if any with a very thin layer.

Pappy · « **Reply #25 on:** February 07, 2013, 08:06:00 am »

7 1/2 should be OK for IW.

I just think it was asking to much for to little working limb.

Pappy

Carson (CMB) · « **Reply #26 on:** February 07, 2013, 12:09:26 pm »

For that length and a stiff handle, maybe a little wider limb would have helped.

Primitive Archer