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Main Boards => The Bowyer's Bench => Topic started by: Sharp Shooter on December 20, 2013, 04:11:00 PM

Title: Floppy Limbs?
Post by: Sharp Shooter on December 20, 2013, 04:11:00 PM
I run into this problem every time I try to do a light poundage bow, 30-40 pounds. The limbs are so limber that you can shake the bow and the limbs flop, yet it's probably close to 50#. I think I know what the problem is but would like your input please. I have a stack of .227, 1 piece of .043 clear ULS, 1 pc .050 clear ULS, 2 .030 veneers and a .002 taper, .074. Thanks Tony
Title: Re: Floppy Limbs?
Post by: Mike Most on December 20, 2013, 04:45:00 PM
Recurve? or longbow?
Title: Re: Floppy Limbs?
Post by: Sharp Shooter on December 20, 2013, 04:47:00 PM
60" recurve.
Title: Re: Floppy Limbs?
Post by: arrowlauncherdj on December 20, 2013, 07:22:00 PM
I myself have found a difference in core material can influence that a bit. I won't Use anything but maple for my lighter bows and I'd put the thicker glass on the belly for extra stability. You might to shallow the pad angle a bit to stiffen the preload.

Dave
Title: Re: Floppy Limbs?
Post by: bamboo on December 20, 2013, 07:37:00 PM
how wide?
whats your limb profile look like?
how far out from the fades do you start the side taper and how close to the hook?
Title: Re: Floppy Limbs?
Post by: Crooked Stic on December 21, 2013, 07:21:00 AM
My recurve had the same problem-floppy limbs. It had a .002 taper. Pretty common in recurves. I redesigned the limb to have a bit more hook and tried a parallel limb but ended up liking .001 taper the best. So what you have got is not enough preload.Strung and unstrung pics would be nice for more comments to give you more help.
Title: Re: Floppy Limbs?
Post by: Sharp Shooter on December 22, 2013, 03:18:00 PM
I have discarded those limbs, but I was thinking that a .001 taper would help with my problem. Any suggestions on a stack for a 40# three piece take down recurve. 60"AMO, 15" riser with 27" x 1.6" wide limbs.
Title: Re: Floppy Limbs?
Post by: wakolbinger on December 22, 2013, 03:25:00 PM
Grind up a little blue pill and mix it in with the
epoxy?
Title: Re: Floppy Limbs?
Post by: Roy from Pa on December 22, 2013, 03:29:00 PM
LOL
Title: Re: Floppy Limbs?
Post by: Buemaker on December 22, 2013, 03:30:00 PM
Good grief,no no, send the blue pills to me. Bue--.    ;)
Title: Re: Floppy Limbs?
Post by: arrowlauncherdj on December 22, 2013, 04:27:00 PM
On my curve design going down .001 in the taper rate only inc my poundage by 6-7 lbs. I'd think you'd do ok with a .220 stack.

Dave
Title: Re: Floppy Limbs?
Post by: Sharp Shooter on December 22, 2013, 08:10:00 PM
HAHAHA guys, I don't need to waste one on a set of limbs! Dave using the .001 taper is what I was thinking. I'm going to try the .220 attack as well. Thanks Tony
Title: Re: Floppy Limbs?
Post by: Roy from Pa on December 22, 2013, 09:39:00 PM
Good grief,no no, send the blue pills to me. Bue--. [Wink]

Bue, you would shoot your eye out...   :laughing:
Title: Re: Floppy Limbs?
Post by: EHK on December 23, 2013, 05:12:00 PM
Wasn't there a post on here about a viagra bow recently?  Funny, there was no blue in that bow anywhere.