posted
I am tillering an osage stave that has about a 30-45degree prop twist in the outer one half of one limb. It seems to be a consensus that if the tips and handle line up, which they do, then a little twist should not be a problem.
Now on the tillering tree the twisted part looks like a paddle and makes it a little hard to see the bending.
My question: Do I scrape my facets in the usual manner in the twisted area or does one side of the limb get more than the other? If the limb is twisted to the right, do I scrape a little more on the left side?
I hope to get some pics up tomorrow to help with my question.
posted
Just my opinion, but if the limb is twisted that much, I would get a heat gun working on it. It makes it easier to see the tiller and, in my opinion, makes it just that much safer.
My two cents
-------------------- Dances with Turtles Posts: 1995 | From: Ontario | Registered: Aug 2004
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posted
Arra, just outer one half is hard to envision. Probably it's the whole limb twisting right? Look down the limb and see if the twist starts in a certain part of the limb and than stays flat but twisted the rest of the way. You can get a heat gun or use steam to heat the area say 6 or 8" at the place where the twist begins. Use a vise to hold the bow and take a padded wrench and straighten the twist a little past flat. If the whole limb is gradualy twisting you cuold just move the tip. You will still have the tillering hassle though. Good luck, Ferret posted some pics of the method recently.
Posts: 218 | From: Liberty Mo. | Registered: Jun 2004
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posted
Lost arra , I would leave it as is , keep both sides equall thickness . Temptation is to thin one side, however that will put more stress on that one side . If you keep it the same you will notice that even though the twist is there it will pull straight with the axis of the bend. To make it a bit easier to tiller measure every six inches from the string grooves and check each measurement from the center of the belly to the string to the same measurement on the opposite limb . The measurements wont lie like the eye will
posted
...and sometimes you need to turn it around and look at the other side. Take a peak at Aerobow on my site. jawge
Posts: 4462 | From: NH | Registered: Mar 2003
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posted
George: I did look at Aerobow and that's why I didn't heat gun this stave yet. I will post pics in the morning but I think it can be done without heating/wrenching.
Posts: 2693 | From: Oklahoma | Registered: Jul 2004
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posted
This shows the twist at the end of the stave. I think I'll take another photo with it on the tillering tree. It might show better. It is a little more twisted than this photo shows.
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All right, all right...... maybe I've just been spoiled with the other bodark I've used in my novice bow building.
Ted: I took your recommendation with the measurements and things are starting to come together much better. I will have it on a short string soon as it is getting easier to ignore the twist, especially since you and slim are making a joke of it. Posts: 2693 | From: Oklahoma | Registered: Jul 2004
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