Main Discussion Area > Bows

Why'd this board break?

<< < (3/4) > >>

bassman211:
You have grain run off above the break.

Pat B:
Looks like the side grain, from back to belly was too steep. Breaks like this break along the grain.

Kidder:
I suspect it’s a combination of things. As Pat mentioned the grain appears steep on the side in that area. However, I suspect that your backing (that we shall not name) contributed to the failure. We believe your bow broke under tension. Which means your backing most likely failed first, causing a massive tension failure that carried through. Short of a Time Machine and setting up a slow motion camera we will never know for sure, but that’s my theory. Yet another reason to avoid that stuff like the plague. On to the next…

Jake Spoon:
Thank you to everyone for the feedback! I really do appreciate it. It sounds like I need to use better backing material and to be more careful with grain runoff on the sides.

I will start another one this week with both of those things in mind, hopefully with better results!

I had never had a bow explode while I was drawing it, and that was unpleasant enough to be good motivation to do better on the next one : )

Thanks again!

willie:

--- Quote from: Pat B on March 31, 2024, 01:06:44 am ---Looks like the side grain, from back to belly was too steep. Breaks like this break along the grain.

--- End quote ---

this.   with a board bow the ring lines need to look look they do on the picnic table board below the bow in the last pic.
and also straight without swirls down the face of the board.  Its hard to find a good board for bows at most retail yards these days. cutting a stave from a tree may be easier.
Backing cant really make up for poor grain, and when using a board one might want to go a little wider or longer than if using a stave.

Navigation

[0] Message Index

[#] Next page

[*] Previous page