Author Topic: Tillering help  (Read 453 times)

Offline briarjumper12

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Tillering help
« on: January 19, 2011, 08:33:00 AM »
I been experimenting with dry heat and here is pic of what it came out looking like.  1.5in for about 13 or 14 inches then tapering to 3/8 (when finished).  Almost there now already.  65 inches tip to tip.  I don't have the string grooves filed in yet.
 

Here it is pulled to 40 lb on the long string. Limb tips moving about 5 inches from the resting pic.
 
I've tillered out 4 successful stave bows from this same wood and broke one board bow as of now.  I've not tried anything like this.  
Could I get some tillering advice on this?
Did I put to much reflex the outer limbs?
Is the reflex even in the right place?
Thanks everyone,
John
Blessed be the Lord my strength; which teacheth my hands to war and my fingers to fight.

Offline Art B

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Re: Tillering help
« Reply #1 on: January 19, 2011, 09:49:00 AM »
You will get a better look at things if you'll go ahead and cut in your string grooves and then use a double loop tillering string. Set the string at what you think is brace height and then run a temporary string from nock to nock. This mimicks a short string and will give you a better looks at your tiller. Strive for an even tiller. To better understand what I'm saying just take a sheet of paper and straightedge from nock to nock across your computer screen on you lower pic.

If you can get a bit more reflex in the last 6-8" of your limbs I believe you'll like the profile better........Art

Offline briarjumper12

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Re: Tillering help
« Reply #2 on: January 19, 2011, 10:52:00 AM »
I thought about more reflex near tips as well Art.  I think I can pull it off.  Give a bit rounded profile in the reflex instead of gull wing look.  Thanks for the suggestion.
Blessed be the Lord my strength; which teacheth my hands to war and my fingers to fight.

Offline hova

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Re: Tillering help
« Reply #3 on: January 19, 2011, 10:54:00 AM »
id like to help , but i have yet to do something like this. im watching though , as i have been thinking of something similar.


-hov
ain't got no gas in it...mmmhmmm...

Offline Walt Francis

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Re: Tillering help
« Reply #4 on: January 19, 2011, 11:48:00 AM »
I wouldn't take your bow to a short string until it is bending 5 or 6 inches past the handle, at 40-50 pounds.
The broadhead used, regardless of how sharp, is nowhere as important as being able to place it in the correct spot.

Walt Francis

Regular Member of the Professional Bowhunters Society

Offline Art B

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Re: Tillering help
« Reply #5 on: January 19, 2011, 01:33:00 PM »
Yeah, I think you're still in good shape also briarjumper. You have the right idea about stiffening your mid-limbs though. Some sort of pyramid design will allow you more limb thickness in that area to help hold reflexed profile better IMO. Maybe try one of those at a later date.....Art

Offline briarjumper12

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Re: Tillering help
« Reply #6 on: January 20, 2011, 07:47:00 AM »
I'm almost ready for the short string.  I'll get some more pics when I do and we'll see what it looks like then.
Blessed be the Lord my strength; which teacheth my hands to war and my fingers to fight.

Offline broketooth

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Re: Tillering help
« Reply #7 on: January 20, 2011, 07:55:00 AM »
when you use dry heat, you need to let the wood rehydrate before you go to the tiller string, maybe a day or so. you will lose some of the reflex through the tiller process. i just learned this myself. keep us posted. ruddy
" you have done well to keep your hair when so many are after it"

Offline briarjumper12

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Re: Tillering help
« Reply #8 on: January 21, 2011, 06:44:00 AM »
broketooth,
I did let it sit out for a day before I even took it off the form.  I was kinda worried about it so I let it sit for another before bending it.  All seems well so far.  
I haven't got to work on it any in a couple of days.  Been down with the flu or something, missed work yesterday and laid in bed.  Going to try get back at today.
John
Blessed be the Lord my strength; which teacheth my hands to war and my fingers to fight.

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