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Main Boards => The Bowyer's Bench => Topic started by: USMC93 on January 23, 2015, 10:00:00 AM

Title: first bow
Post by: USMC93 on January 23, 2015, 10:00:00 AM

Hello everyone,
I was thinking of trying a glass bow setup. I wanted to give a plain black glass (Bo-Tuff E Glass, UL .030 x 2(front and back)) with .125 x 2 red oak and a 21" red oak raiser in the Bingham 60" recurve. Would this be too thick for a 45# bow. I was looking over the Bow Draw Weight chart and if my calculation are right I'd be at .310 thick. thank you in advance.

Title: Re: first bow
Post by: Trux Turning on January 23, 2015, 11:19:00 AM

On the bingham chart they show .262 stack for a 45# bow.

Title: Re: first bow
Post by: bigbob2 on January 23, 2015, 05:41:00 PM

x2

Title: Re: first bow
Post by: fujimo on January 23, 2015, 08:44:00 PM

wouldnt that redoak riser need quite a bit of reinforcement-
both i beam and other transverse reinforcements!

Title: Re: first bow
Post by: JamesV on January 24, 2015, 09:51:00 PM

.310 won't give you 45#. Using some previous builds as a guide, I would go .250 and it will give more like 50# @ 28". You didn't mention any taper in the lams. I would use .003 taper for your recurve. Without any taper you will get a lot more bend at the fades.

James

Title: Re: first bow
Post by: Mad Max on January 25, 2015, 06:04:00 PM

Quote

Originally posted by Trux Turning:
On the bingham chart they show .262 stack for a 45# bow.

x2
go to the binghams site
on the left
"Bow draw weight chart"
Good luck   :)