Primitive Archer

Main Discussion Area => Bows => Topic started by: Swatch on June 17, 2014, 10:24:20 pm

Title: Help with limb twist
Post by: Swatch on June 17, 2014, 10:24:20 pm

I have a recurve and the top limb is twisted such that the string is shifted to the left instead of being in the center. Is that side the strong side or the weak side?

Title: Re: Help with limb twist
Post by: Crogacht on June 17, 2014, 11:09:06 pm

The way I understand it, if it is twisting, then there is one side that is being pulled "further" than the other side with the same force applied. Therefore the side that moves further is the weak side.

I can't back this up with actual experience, so wait for others to chime in, but that's my (current) understanding of the problem.

EDIT: there are some interesting diagrams if you do a google search:

https://www.google.co.nz/search?q=bow+making+limb+twist+weak+strong+side&espv=2&source=lnms&tbm=isch&sa=X&ei=ofWgU7nfMdGYlAXD0oDwDg&ved=0CAYQ_AUoAQ&biw=1920&bih=955#q=bow+limb+twist+weak+strong+side&tbm=isch (https://www.google.co.nz/search?q=bow+making+limb+twist+weak+strong+side&espv=2&source=lnms&tbm=isch&sa=X&ei=ofWgU7nfMdGYlAXD0oDwDg&ved=0CAYQ_AUoAQ&biw=1920&bih=955#q=bow+limb+twist+weak+strong+side&tbm=isch)

Title: Re: Help with limb twist
Post by: Swatch on June 17, 2014, 11:22:37 pm

Thanks, I was taking a little of the wrong side and it wasn't helping.  I thought I would ask before I was sorry. You helped a lot because the diagrams that you pointed me to were very clear.  Thanks!

Title: Re: Help with limb twist
Post by: Pat B on June 17, 2014, 11:28:30 pm

Does it only twist when braced or is it twisted at rest?

Title: Re: Help with limb twist
Post by: Swatch on June 18, 2014, 12:16:49 am

Only when braced.

Title: Re: Help with limb twist
Post by: Pat B on June 18, 2014, 12:31:45 am

Lightly grasp the limb on one edge between your thumb and fingers and feel the thickness. Move your hand up and down the limb and from side to side. You should be able to feel the thicker areas that are causing the twist.
 If you have a tiller Gizmo work it down both side of the limb along belly. It will show you where you need to remove wood to remove a twist.

Title: Re: Help with limb twist
Post by: Pappy on June 18, 2014, 06:16:15 am

Careful with a gizmo on a recurve, [that is what you said it was] it will show you the wood you DON'T want to take off. I am assuming this is a wood recurve,if it is glass their are other way to fix it but this ant the place to discuss it. ;) :) :)
  Pappy

Title: Re: Help with limb twist
Post by: PEARL DRUMS on June 18, 2014, 08:51:16 am

When you are holding a bow normally and it has limb twist, it will twist towards the weak side. If your limb leans left as you hold it, the left side is thinner or weaker. That's the most simple way to describe it.

Title: Re: Help with limb twist
Post by: Richard B on June 18, 2014, 03:46:39 pm

what is a tiller gizmo?

Title: Re: Help with limb twist
Post by: Swatch on June 21, 2014, 12:10:04 am

Thanks, you guys helped me resolve the issue and I am now back on track!  Thanks a lot!