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Main Boards => PowWow => Topic started by: Matthew Bolton on December 03, 2011, 06:24:00 PM

Title: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 06:24:00 PM
I noticed the other day that the string on the upper limb of my zipper longbow doesn't line up with the center of the limb. I can't tell from looking down the limb if it is twisted or not. If it helps the bow shoots dead on and the string lines up with the shelf.
(http://i1093.photobucket.com/albums/i433/matthewbolton1/Mobile%20Uploads/1203111748a.jpg)
Title: Re: Is this limb twisted?
Post by: njloco on December 03, 2011, 06:27:00 PM
Some bows settle in with a bit of a twist, I have a 65 Bear Kodiak that has done that. I wouldn't change it because it shoots so accurately, I'm afraid if I do straighten it, might change that.
Title: Re: Is this limb twisted?
Post by: JamesKerr on December 03, 2011, 06:27:00 PM
It looks like it might have a little twist toward the tip about the area it starts to reflex. Please post a picture of it strung as it could just be the angle at which the picture was taken.
Title: Re: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 06:30:00 PM
It was strung when I took this picture.
Title: Re: Is this limb twisted?
Post by: njloco on December 03, 2011, 06:38:00 PM
Can you put it down on a flat surface, or between two flat surfaces, that will tell you if it's twisted, but if it shoots good you have a decision to make.
Title: Re: Is this limb twisted?
Post by: on December 03, 2011, 06:48:00 PM
Looks like it might have a teeny twist in the pic but pics can be decieving. If it is it can be fixed with a couple clamps and a blow dryer or heat gun. I have done this to a couple bows and not seen any effect on the way the bow shoots.

Bisch
Title: Re: Is this limb twisted?
Post by: Bjorn on December 03, 2011, 06:48:00 PM
Looks a little twisted, yes.
Title: Re: Is this limb twisted?
Post by: JamesKerr on December 03, 2011, 06:50:00 PM
Please post some more pics.
Title: Re: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 07:00:00 PM
(http://i1093.photobucket.com/albums/i433/matthewbolton1/Mobile%20Uploads/1203111844.jpg)
Title: Re: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 07:01:00 PM
That one is it sitting flat on the string but not being pushed down. I was holding it level with my legs.
Title: Re: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 07:08:00 PM
Here's another one looking down the string. Sorry the pics aren't that good I'm having to use my cell phone.

(http://i1093.photobucket.com/albums/i433/matthewbolton1/Mobile%20Uploads/1203111906.jpg)
Title: Re: Is this limb twisted?
Post by: Whip on December 03, 2011, 07:18:00 PM
It was hard to tell from the first two pictures, but that last one does show the string not centered, so yes, it looks like it is twisted.  I assume you have made sure that the string is seated properly in the nock grooves?

Most twists can be removed simply by laying the bow on its side on a table and twisting the limb in the opposite direction.  Start gently, but most will eventually be persuaded to go back where they belong without heat or anything special.
Title: Re: Is this limb twisted?
Post by: JamesKerr on December 03, 2011, 07:19:00 PM
Yes your limb is twisted. I would either run it under some hot water or use a hair dryer to get it hot and twist it just a little past straight. As it cools down it should be straight.
Title: Re: Is this limb twisted?
Post by: Matthew Bolton on December 03, 2011, 07:21:00 PM
Alright I will play with it some tonight. Do I leave it strung or unstrung when straightening?
Title: Re: Is this limb twisted?
Post by: Bjorn on December 03, 2011, 07:49:00 PM
I like them strung and see where you can get by twisting against the twist just using your hands........no hair dryer and no water.
I would also call zipper before doing anything. A polite chat can do wonders-worth a shot.
Title: Re: Is this limb twisted?
Post by: njloco on December 03, 2011, 07:50:00 PM
If you use a heat gun at all, be real careful with it. I would try Whip's way first and progress to a hair blower and then warm water then hot then as a last resort the heat gun.
Title: Re: Is this limb twisted?
Post by: zipper bowss on December 03, 2011, 07:53:00 PM
Matthew,you have a pm.
Bill
Title: Re: Is this limb twisted?
Post by: L. E. Carroll on December 06, 2011, 05:14:00 AM
I'm glad to see the bowyer has contacted you on this.  I think I'd have him address this if he's willing?  :wavey: