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Main Boards => The Bowyer's Bench => Topic started by: KVTA TANK on January 16, 2009, 01:21:00 PM
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Im wanting to build a new set of limbs for my bow..How do you estamate the poundage you want??? :confused:
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length and lam thickness. The longer they are the less poundage. If you build a pair the same length but thicker, they will be stronger. I've never built a take down, so someone else will have to offer their take on "how" much thicker. In my straight longbow designs, it takes around .020 to make 5 lbs.
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Look at Binghams site. They have a pretty good weight chart for their bow kits.
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Mic the limbs you have now and adjust from there. Depending on the style.i.e recurve,longbow,hybrid the thickness per # needed to SWAG (scientific wild a** guess) poundage will vary.For instance my recurves are.001 per #,T/D longbow .003 per # and my hybrid is .0025 per #
You'll need to build the first set to give you a benchmark to work from
Good luck.
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Hi!
My takedown bow have 70 cm limbs (27.5" from nock to screw hole). I use from back to belly in order
-black fiberglass 0.05 and 1 1/2"
-locust 1.5 mm (0.06") 70 cm length
-locust 1.2 mm (0.05") 35 cm length
-locust 6mm tick for 10 cm long and then tapper for another 12 cm
-locust 1.2 mm 70 cm long
-fiberglass 0.05" 1 1/2
This bow give me 55# at 28". From experience even trying to duplicate using the same materials never get the same results but very close. As PV said before start building a pair based on other experience and compare with your results. Keep a log of your bow dimension and after that it is possible to extrapolate from one bow to another. Good luck!
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same as pv