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Main Boards => The Bowyer's Bench => Topic started by: Mad Max on November 08, 2019, 11:14:36 AM

Title: How much working limb
Post by: Mad Max on November 08, 2019, 11:14:36 AM: What is the minimum length of working limb for a working Recurve ?
Title: Re: How much working limb
Post by: Crooked Stic on November 08, 2019, 11:33:46 AM: Man thats a loaded question. It will vary with riser length and pad angle wedges taper etc.Where your design optimizes. Kirk of Bigfoot bows has done a ton of research and development. He will help if you ask.
Title: Re: How much working limb
Post by: Mad Max on November 08, 2019, 11:55:42 AM: Thanks Stic :thumbsup:
60" NTN, 22" riser, 7 degrees, 1 piece recurve
So I'm at 19" now
Title: Re: How much working limb
Post by: Roy from Pa on November 08, 2019, 12:08:56 PM: Dang and all this time I thought Shreddy was the Expurt?
:laughing:
Title: Re: How much working limb
Post by: Mad Max on November 08, 2019, 12:16:29 PM: Go to your corner Roy :tongue:
Title: Re: How much working limb
Post by: Mad Max on November 08, 2019, 12:18:56 PM: I was going to send you a Osage Stave.
Title: Re: How much working limb
Post by: Crooked Stic on November 08, 2019, 01:24:05 PM: 19 ought to be plenty. 7 degrees is pretty flat.. Got a pic of it.
Title: Re: How much working limb
Post by: Mad Max on November 08, 2019, 01:36:43 PM: (https://i.imgur.com/IQiY1vY.jpg)
Title: Re: How much working limb
Post by: Roy from Pa on November 08, 2019, 01:36:59 PM: Ya sure ya wuz....
Title: Re: How much working limb
Post by: Wolftrail on November 08, 2019, 03:43:15 PM: Is a 22" riser really necessary, is it not better to have a shorter riser and longer limbs been the same weight, length. Make for a smoother bow would it not.?
Title: Re: How much working limb
Post by: monterey on November 08, 2019, 03:58:07 PM: Looks like a radicalized Shakespeare Necedah.

Build it. Inquiring Bowyers want to know........ without spending our own time and money! :)
Title: Re: How much working limb
Post by: Crooked Stic on November 08, 2019, 04:15:39 PM: That will work fine. Wolf look at some of the TDs with say a 17 in. riser and wedges sticking out each side 3 in.
Title: Re: How much working limb
Post by: buckeyebowhunter on November 08, 2019, 05:58:31 PM: If wedges take away from working limb, what is the benefit of having them?
Title: Re: How much working limb
Post by: Bvas on November 08, 2019, 06:12:14 PM: Quote from: buckeyebowhunter on November 08, 2019, 05:58:31 PM
If wedges take away from working limb, what is the benefit of having them?
Wedges are required on the butt end of take down limbs to create the fades that are normally part of the riser on one piece bows. That way you don’t create a hinge at the end of the riser.
Title: Re: How much working limb
Post by: Roy from Pa on November 08, 2019, 06:26:40 PM: :thumbsup: :thumbsup:
Title: Re: How much working limb
Post by: buckeyebowhunter on November 08, 2019, 07:44:41 PM: Quote from: Bvas on November 08, 2019, 06:12:14 PM
Quote from: buckeyebowhunter on November 08, 2019, 05:58:31 PM
If wedges take away from working limb, what is the benefit of having them?
Wedges are required on the butt end of take down limbs to create the fades that are normally part of the riser on one piece bows. That way you don’t create a hinge at the end of the riser.

So, I'm assuming there is a fine line between too short of a wedge and too long? Too short creating the possibility of the hinge and too long subtracting from the amount of working limb? Not trying to hijack the thread but this relates quite a bit to my post the other day.
Title: Re: How much working limb
Post by: Crooked Stic on November 09, 2019, 06:21:32 AM: Lets say you built a TD with no wedges. First off it is gonna be too thin under the bolt to handle the stress. Even if it did handle the stress it would be flexing.