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Main Boards => The Bowyer's Bench => Topic started by: Werewolf on June 05, 2016, 12:27:00 AM

Title: core tuff question please help
Post by: Werewolf on June 05, 2016, 12:27:00 AM
If i add a layer of core tuff to my limb stack is the amount i can reduce my wood laminations proportional to the thickness of my core tuff or do i need to reduce the amount of wood laminations to a greater extent?
any help would be appreciated
Title: Re: core tuff question please help
Post by: kennym on June 05, 2016, 10:10:00 AM
I've only used it once, and on an experimental bow. So I have nothing except someone told me it made no extra weight on their bows.
Title: Re: core tuff question please help
Post by: Wagstaff on June 05, 2016, 02:57:00 PM
I count the core tuff in the center the same as wood in stack thickness.
Title: Re: core tuff question please help
Post by: Pago on June 06, 2016, 04:53:00 PM
I follow the same procedure as Pathfinder but use stabil-kore which is similar I am told.
Title: Re: core tuff question please help
Post by: bjansen on June 06, 2016, 06:56:00 PM
I am with Pago.  I have used core tuff a couple times and I think it adds unneeded weight to the limb. I much prefer the lighter, thinner stable core that kustom king sells. Regardless of what I use, I count it all the same as wood.
Title: Re: core tuff question please help
Post by: Bowjunkie on June 06, 2016, 07:29:00 PM
I think ALL fiberglass adds unneeded weight to the limbs    :laughing:
Title: Re: core tuff question please help
Post by: rockkiller on June 06, 2016, 11:41:00 PM
Probably a dumb question,but what is the advantage of either one over a wood core ?  :dunno:
Title: Re: core tuff question please help
Post by: Pago on June 07, 2016, 02:34:00 AM
Granted it was due to a mistake but I have a 1" wide recurve limb that shows no bad stability issues in a 65# bow.  I don't think that is possible with a wood core.  I can't prove it empirically but I believe it adds both torsional and lateral stability.
Title: Re: core tuff question please help
Post by: jess stuart on June 07, 2016, 12:39:00 PM
My understanding is that uniweft helps with stability like stabil core.  Both have strands running running across the length of the glass.  I think coretuff in unidirectional and would have less affect on the limbs stability.  It would probably add only the same amount of stability that a like thickness you usual core material would add.  I must admit I have never used coretuff or stabil core in a limb but, have used uniweft a few times.  In the future I would go will go with stbil core to reduce weight.  I have always figured the uniweft the same as wood with no adjustment to stack height and came out fine.
Title: Re: core tuff question please help
Post by: Werewolf on June 07, 2016, 08:33:00 PM
ok thank you guys
Title: Re: core tuff question please help
Post by: mwosborn on June 07, 2016, 10:11:00 PM
QuoteOriginally posted by rockkiller:
Probably a dumb question,but what is the advantage of either one over a wood core ?   :dunno:  
"looks".  You can add a colored stripe down the middle of the limb.