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Main Boards => PowWow => Topic started by: elk ninja on January 26, 2007, 08:07:00 PM
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Gangers.... here is my first attempt at a fiberglass R/D hybrid, but my tiller is a bit off. Any suggestions on how to even up the curve? I am sure that some full draw pictures would be helpfull, however it's a southpaw bow and I am a north hander, so they just look goofy...if they're needed I can furnish them, but any advise with these will be greatly appreciated!
(http://i61.photobucket.com/albums/h58/mmbackpacker/IMG_2764.jpg)
(http://i61.photobucket.com/albums/h58/mmbackpacker/IMG_2766.jpg)
(http://i61.photobucket.com/albums/h58/mmbackpacker/IMG_2767.jpg)
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How's it shoot? Does it have alot of hand shock?
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How much is the tiller off ? You can lightly sand the stronger limb to weaken it or you can trap (bevel) the limbs to tiller if you have a lot of material to take off. Looks like a good first bow !
Bill
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Looking at the top picture the limb on the right side seems to have more deflex than the other limb at the top of the picture. I would say if it dosen't shoot well, then you are going to have to either make the needed adjustaments to the Bow form or start over and make another form.
Both upper and lower limbs must have the same deflex and reflex so that they will bend the same.
Also looks to me like you may have a hinge area at the fades, they need to be blended more smoothly. Just My opion thou, others may see it differently....ONE SHOT...
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I to think your form may be off. You should make both ends of the form off the same pattern. Look at this it will tell you how to cut your form out to get the halves the same. Bow forms. (http://www.stickbow.com/FEATURES/BOWBUILDING/bowform.CFM)
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Measure the width of the two limbs along their length and compare them. One might be not exactly the same as the other. Do this by putting masking tape along the limbs and making marks so you are comparing apples to apples.
Did you lay up the bow with the lamination butts evenly in the center or slightly below or one side of center ? This could slightly affect the way the limbs bend.
As above. Shoot it a bit first, before you change much. It is not unusual to have the bottom limb be slightly heavier than the top in tillering, allowing maybe up to 3/8" (more or less depending upon maker and the distance above centerline the shelf is cut) difference between the two. If it shoots well and is not noisey or with a lot of hand shock, you might just leave it alone. I think......
ChuckC :banghead: