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Main Boards => The Bowyer's Bench => Topic started by: jess stuart on February 19, 2011, 06:38:00 PM

Title: recurve lam taper
Post by: jess stuart on February 19, 2011, 06:38:00 PM
I have always just used a parallel and an ,002 taper in my recurve limbs.  Have been thinking of trying two .0015 without the parallel.  Any thoughts, opinions, reservations, etc would be appreciated.
Title: Re: recurve lam taper
Post by: macbow on February 19, 2011, 07:32:00 PM
I think most of the ones I've built in the past had a parallel. The job of the lams is to build up enough material to assist the glass. I would think adding effectively a little more taper would make the tips bend a little more.If thats what your design needs then go for it. It's a pretty small change in total taper but remember you will loose a fair amount on the tips without the parallel
Total thickness change is what you need to look at.
Ron
Title: Re: recurve lam taper
Post by: Mt. Clemens Bowyer on February 22, 2011, 04:33:00 PM
Jess
 Ive been using .002 in. taper per inch, with a parallel, as per "Binghams Projects" on the few bows which I have made, but have noticed recently on the (2) 1960's Bear bows which I have, that he used .001 in. taper per inch of length on both laminations of his bows, with no parallels. One is a 1966 Bear Tamerlane target bow that is 35# @ 66", and the other is a Bear Kodiak hunting bow that is 42# @ 60".   He had a good formula, as they both shoot well.     John