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Main Boards => The Bowyer's Bench => Topic started by: b.glass on April 07, 2011, 02:40:00 PM

Title: Horn belly?
Post by: b.glass on April 07, 2011, 02:40:00 PM
I need your opinion. Do you think that a gemsbok horn belly will make a BBO bow with grain run-off more sound?
Title: Re: Horn belly?
Post by: CaptainJ on April 07, 2011, 05:51:00 PM
I would think so. The core of the bow doesn't have anywhere near as much force exerted on it as the back and belly so you would reduce the strain on it considerably.

CJ
Title: Re: Horn belly?
Post by: Aznboi3644 on April 07, 2011, 06:31:00 PM
why are you worried with the grain of the belly?
Title: Re: Horn belly?
Post by: rainman on April 07, 2011, 06:42:00 PM
Yes.  But don't know why you are worried on belly.
Title: Re: Horn belly?
Post by: 4est trekker on April 07, 2011, 07:07:00 PM
Yes, Bona, that would be an excellent plan. However, it will add a lot of weight.  And you SHOULD worry about the grain of the belly to some extent.  If it runs off severely, it can sheer during compression, thus causing the back to fail.
Title: Re: Horn belly?
Post by: b.glass on April 07, 2011, 07:11:00 PM
I had asked some time ago about this bow with grain run off and whether it was safe. A couple of people said that it would not be safe in their experience. So I thought a horn belly would make it safe.
Title: Re: Horn belly?
Post by: bigcountry on April 07, 2011, 08:23:00 PM
It would definately take some of the strain off the belly and more on the horn.
Title: Re: Horn belly?
Post by: b.glass on April 07, 2011, 08:35:00 PM
I figured if there is any question about the soundness without the horn, it would only make it better... and cooler at the same time.
Title: Re: Horn belly?
Post by: fujimo on April 07, 2011, 09:37:00 PM
is it a self bow or a board bow, if a board bow, it would be real easy to add a belly lam- quite a bit less work, and maybe use the horn for a special preoject instead of a "fix"

just an idea
g'luck
wayne
Title: Re: Horn belly?
Post by: Pat B on April 08, 2011, 12:24:00 AM
Bona, If I were going to build a horn belly bow I would start off with that in mind. If you are trying to increase weight, durability and even performance you can do this by grinding the belly down and adding a compression strong belly lam (glued up in reflex if desired). I know horn is very strong in compression but it is expensive and labor intensive to work with. A 1/8" thick piece of osage, glued in reflex to the belly will add more than you would think.
Title: Re: Horn belly?
Post by: Stiks-n-Strings on April 08, 2011, 02:29:00 AM
Bona I will send you a pm on a place to find some horn at a great price.
Title: Re: Horn belly?
Post by: b.glass on April 08, 2011, 08:29:00 AM
Thank you everyone! PM'd you back Stiks.

Well, I glued this bow up atleast three yrs ago thinking that the bamboo would make the less than perfect grain ok. Then it became a bow last yr. It was going to be my trade bow. Then I got to worrying a little about the grain and when I asked, atleast one said it was not safe. So I thought I would just use it myself.

Then I saw someone's horn bellied bow and thought "how cool" . The poundage is a little low on this bow, the horn should fix both and make it special and might be my trade bow (being my first with a horn belly and I haven't seen anyone make one for the trade before).

Pat,I have used your belly lam idea on another bow already and it's working out pretty well for my first try at that. I don't mind the extra work when it ends up good.

I have the horn already ordered. My personal opinion is that it will make a good bow but I am not as experienced as some of you and I just want to be sure.