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Main Boards => The Bowyer's Bench => Topic started by: algstick on November 25, 2016, 05:00:00 PM
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I just finished my first glass laminated longbow build and I missed weight a good bit, it is a 66" asl with 7/8" setback if I cut it down to 64" or 63" how much might I gain?
It is bamboo core with .050" back and belly fiberglass and a 15 1/2" riser. 1 1/8" wide at the fades and 1/2" at the nocks. I made a mistake in ordering the core lams but just went ahead with the build. It turned out just fine but just lighter than I wanted
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If you only want to gain a few pounds you can cut a half to one inch off each end of the bow, called piking. You could also possibly glue an additional piece of glass on the limbs. I have glued glass down a couple of times to raise weight and it worked out well. I just cured at a lower temperature the second time. Good luck hope you get her where you would like her to be.
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For each inch you cut off both limb tips, you gain about 4 to 5 pounds.
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1% of length = 5% draw weight increase.
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Piking can be tricky. Have done it a few times without any real success. Why.? after the pike I had to re tiller the bow and the weight seemed to end up at square one again. If not then it BROKE. :dunno:
The old saying if she aint broke dont fix it.!
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Originally posted by Wolftrail:
Piking can be tricky. Have done it a few times without any real success. Why.? after the pike I had to re tiller the bow and the weight seemed to end up at square one again. If not then it BROKE. :dunno:
The old saying if she aint broke dont fix it.!
I found the same thing with most wood bows if I'm only picking a bit. Did pike one from 72 to 58" and that sure went up in weight.
Anyway, since he's talking about a glass bow, I'd imagine he will have less retillering to do and will gain a few pounds.
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Thanks for the input guys
I am going to finish it out and give it to my daughter or use it for a form training bow.
Gonna order more material and build another.
I learned a lot from this one and it shoots well too. It ended up a tad under 40# @ 26"
I would post a few pics if I could figure out how
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Thanks for the input guys
I am going to finish it out and give it to my daughter or use it for a form training bow.
Gonna order more material and build another.
I learned a lot from this one and it shoots well too. It ended up a tad under 40# @ 26"
I would post a few pics if I could figure out how