Author Topic: Tillering after removing twist  (Read 129 times)

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Offline Groucho

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Tillering after removing twist
« on: Today at 10:05:12 am »
Tillering this osage bow has me stumped - appreciate any advice.  I had it tillered pretty well but a twist (on the left side) caused the string to go off to the side so I heated out the twist.  But apparently, heating the limb caused the recurve to relax so I had to recurve the left limb again.  But now, you can see in the image that the left limb is stronger than the right.  And left limb is thinner than the right limb so I'm reluctant to remove more wood.

Could this be caused by having more recurve in the left limb?
You only keep what you give away.  Jeff Gunderson, New Richmond Ohio

Offline Eric Krewson

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Re: Tillering after removing twist
« Reply #1 on: Today at 10:49:36 am »
Looks to me you are really straight out of the handle on the right side then you have a hingy spot and not much bend to the recurve. If it were me I would reflex that right limb with heat to get rid of the hinge and retiller. The left limb looks good to me.

An old artist trick is to squint your eyes at a picture to make the detail show up better, I did that and looked at your picture.

Offline Burnsie

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Re: Tillering after removing twist
« Reply #2 on: Today at 10:57:33 am »
Are you close to target weight?  If you are still pretty heavy you should have enough to do as Eric said.
Otherwise prepare to be under weight.

Offline Groucho

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Re: Tillering after removing twist
« Reply #3 on: Today at 12:52:58 pm »
OK thanks.  That hingy thing on the right was a bump (curve) in the wood that I had to follow.  It's not too thin compared to wood on either side.  Do you still think I should straighten the hinge?

The bow is at weight - my grandkids already have lots of light bows :-)
You only keep what you give away.  Jeff Gunderson, New Richmond Ohio

Offline NonBacked

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Re: Tillering after removing twist
« Reply #4 on: Today at 02:00:55 pm »
It looks like you’ve done a good job getting to this point. If you’re satisfied with the weight and the string is in-line, you need to take some test shots and determine how it shoots and how it feels. I would expect that it will lose some weight, but Osage stays together under all kinds of mistreatment.

If you’re wanting to make it look “pretty”, we can give additional advice if you will add a couple of pictures – unstring your bow and show the side profile and the back profile. Also, tell us the mass weight.

Note: I’ve hunted all season with bows that didn’t look that good.

Offline Pat B

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Re: Tillering after removing twist
« Reply #5 on: Today at 04:35:34 pm »
Was the twist in the limb before or only when you drew the bow? Maybe your thickness was uneven from side to side so it twisted as you drew the bow. Was the heated area completely cooled before you drew the bow. If not that could cause the hinge and take it out of tiller.
 If the limbs were well tillered before you heated it you could put it back on the form, reheat both limbs and leave it clamped to the form over night.
Make the most of all that comes and the least of all that goes!    Pat Brennan  Brevard, NC