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  #1  
Old 06-12-2009, 07:32 AM
Andy Andy is offline
 
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Default too much vibration in recurve

I have a Martin Hunter Recurve 50lb pull with a 28 inch draw. I am having too much vibration in the bow once the arrow is released. I was told to vary the brace height which I will eventually find a sweet spot to reduce or eliminate the vibration. I tried it but to avail. Does anyone have any recommendations in how I can reduce or eliminate the vibration. Or is such vibrations normal for recurves?
thanks for your help
Andy
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  #2  
Old 06-12-2009, 09:31 AM
Floxter Floxter is offline
 
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Default Re: too much vibration in recurve

If you are encountering continued vibration after the shot, my guess is your brace height is too low/your string is too long.
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Old 06-12-2009, 10:03 AM
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Default Re: too much vibration in recurve

Man, That sounds like brace height, but, without some more details:
Arrow weight, string material, finger grip; three under, Mediterranean,
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Old 06-12-2009, 10:11 AM
Dartwick Dartwick is offline
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Default Re: too much vibration in recurve

If raising the brace height is not solving it you could always use heavier arrows.

Last edited by Dartwick; 06-12-2009 at 12:05 PM.
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Old 06-12-2009, 10:13 AM
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Default Re: too much vibration in recurve

Andy,

My thoughts are about the same as BigCnyn’s. When troubleshooting a problem it is needful to know if the problem is reoccurring (something that has always been there) or if it just started. If the problem just started you need to know what details changed just before the problem manifested itself.

If no details appear to have changed ( i.e. it just happened today for no apparent reason), for me sometimes it is an indication that my form is different today for some strange reason and the bow does not like it.

Rich
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Old 06-12-2009, 06:27 PM
psushchyk psushchyk is offline
 
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Default Re: too much vibration in recurve

What brace height are you using and type of string material? What is the age of the bow?
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Old 06-13-2009, 06:11 PM
Andy Andy is offline
 
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Default Re: too much vibration in recurve

I use the Fleming bowstring that originally came with the bow. The bow is 1 year old. Brace height that I use is 7.25 inch. Brace height is from 7-7.75 inches
Andy
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Old 06-13-2009, 06:28 PM
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George D. Stout George D. Stout is offline
 
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Default Re: too much vibration in recurve

Andy, it could be a tiller issue as well. If you have run the gamut of brace numbers, measure the tiller and see if there are any issues there. The bottom limb at the fadeout should show closer to the string than the upper limb at the same spot. The difference should be somewhere between 1/4" and 3/8". Let us know what you find there. You may also try taking that brace to about 8" to 8 1/4".
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Old 06-13-2009, 06:44 PM
psushchyk psushchyk is offline
 
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Default Re: too much vibration in recurve

Andy:

I assume that the vibration that concerns you is actually handshock when the string comes into contact with the limbs after the arrow leaves the shelf and not before.

As this is a relatively new bow, I also assume that there is no visible limb defect. Therefore, if setting the brace height higher does not correct the hand shock, I would suggest that you obtain a new string. The bowstring may be defective in some unseen manner.

I use a padded endless loop string on my bows and you may want to have a 14 strand string made up from Fastflight or TS1. You may want also to install limbsavers at the limb fadeouts and also feltlimb tip pads. I shot a Martin Howatt Hunter for many years and this bow is a very solid, enduring design.

PMS
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Old 06-14-2009, 01:56 PM
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Default Re: too much vibration in recurve

try a extra heavy arrow that will tell you quicker ,also try a lighter arrow and see if vibration gets worse try only one thing at a time.
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Old 06-14-2009, 06:21 PM
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Default Re: too much vibration in recurve

All bows vibrate some in the hand, wood bows more so than metal. Before you invest too much time trying things, I would shoot another person's bow (someone who knows what they are doing in setting one up) and see how it feels in comparison. You might be experiencing something normal.
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