Author Topic: pyramid bow  (Read 1377 times)

Offline Paul/KS

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Re: pyramid bow
« Reply #20 on: July 24, 2015, 11:13:00 AM »
Good to see ya building and posting again Kelly.
Hope all is well at your new location.
Missed ya at Mojam this year.

Offline monterey

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Re: pyramid bow
« Reply #21 on: July 24, 2015, 12:13:00 PM »
I would stick with the 2" width and take the tips down to 1/4".  That tip wood is not doing much work and the wider wood near the fades is not putting mass where it will hurt you.

That's just my thoughts on it.
Monterey

"I didn't say all that stuff". - Confucius........and Yogi Berra

Offline Mad Max

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Re: pyramid bow
« Reply #22 on: July 24, 2015, 04:20:00 PM »
I got a Hickory stave at mojam also.
Rought down and Put in my bow room with 40* humidity in 2 days it lost 10 grams of moisture
I am not going to work on mine until the moisture gets out.

I got 4 osage also
I would rather fail at something above my means, than to succeed at something  beneath my means  
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Offline mikkekeswick

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Re: pyramid bow
« Reply #23 on: July 25, 2015, 02:24:00 AM »
Quote
Originally posted by monterey:
I would stick with the 2" width and take the tips down to 1/4".  That tip wood is not doing much work and the wider wood near the fades is not putting mass where it will hurt you.

That's just my thoughts on it.
Dead on the money.
I would be giving it a solid heat treatment now and planning to do it again when at about 20 - 22 inches of draw. Trapping the back will make a world of difference. I would be aiming to take a full 3/8ths off each side near the handle and reducing this as I went along the limb to about an 1/8th near the tips.

Offline KellyG

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Re: pyramid bow
« Reply #24 on: July 25, 2015, 10:38:00 AM »
Ben no heat on the belly yet planned on it. Monterey
I may thin the tips but I was taught you start wide at the tips and handles so you can make adjustments in them to help the string track. So the tips will get norrow but it will be later. Well I have a date with a heat gun.

Offline KellyG

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Re: pyramid bow
« Reply #25 on: July 28, 2015, 05:44:00 AM »
Ok I had a date with a heat gun.

 

 

 

 


Well I think she is nice and toasty. I will work on her this week end getting her tillered out.

Offline mikkekeswick

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Re: pyramid bow
« Reply #26 on: July 28, 2015, 08:49:00 AM »
Watch the angle at the bottom of the fade into the working limb it looks a little sharp to me?
Did you see the moisture coming out of the belly as you were heat treating? It looks like it wasn't dry enough without the heating. It might be an idea to keep it in a hot box when you aren't working on it too. I've found getting hickory drier than 'normal' makes quite a difference to it.

Offline KellyG

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Re: pyramid bow
« Reply #27 on: July 28, 2015, 10:16:00 AM »
Thanks mike no moisture came out. It was a seasoned stave when I got it and i cut it down to a bow black back in NOV when I was still in KS, and I bet nothing dries them better then a dry KS winter.

Offline KellyG

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Re: pyramid bow
« Reply #28 on: August 10, 2015, 10:46:00 AM »
Ok I have this bow bending the right limb needs some work on the inner 3rd.  And the left is just stronger I think.

Brace
   

Near the full draw. I am within an inch or so. I am near the top of the draw weight so I am sure I can get a good tiller.
   


The string tracks just off the handle. So I will toast the belly and get the string closer to center.

Offline mikkekeswick

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Re: pyramid bow
« Reply #29 on: August 11, 2015, 02:30:00 AM »
With it being a pyramid width taper you should be aiming for an even bend everytwhere along the limb. Eg. the tiller should be arc of a circle with it perhaps a shade stiff out of the fads to prevent excess set there. Right now its bending way hard in the mid/outer limbs. You need to remove a reasonable bit of wood from the inner limbs. I personally wouldn't brace it yet until the tiller is sorted out.

Offline mikkekeswick

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Re: pyramid bow
« Reply #30 on: August 11, 2015, 02:32:00 AM »
Quote
Originally posted by mikkekeswick:
With it being a pyramid width taper you should be aiming for an even bend everytwhere along the limb. Eg. the tiller should be arc of a circle with it perhaps a shade stiff out of the fads to prevent excess set there. Right now its bending way hard in the mid/outer limbs. You need to remove a reasonable bit of wood from the inner limbs. I personally wouldn't brace it yet until the tiller is sorted out.
In my last post I said about the moisture - if you look at your pics of the belly toasting you'll little darker 'dots' - those are caused when the moisture in the wood evaporates and the sugars in the sap are left behind.

Offline KellyG

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Re: pyramid bow
« Reply #31 on: August 11, 2015, 01:21:00 PM »
thanks for the imput I was seeing the same thing on the limb then. To stiff on the inner 3rd or so.

Offline KellyG

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Re: pyramid bow
« Reply #32 on: September 01, 2015, 10:01:00 AM »
Ok I let her set after putting some more heat on the belly. I tried to fix the string tracking but either I went too far or it did not take. I think I have the tiller under control.

Ok just off the heat.
 

She sets almost strait now. After shooting she has some string follow but it comes out after she has rested.
Braced
 

Checking tiller

 

And near full draw.

 

The rain came in yesterday and kept me from heating it up  But I like the way this thing slings an arrow. It has better cast then any I have made.

Offline KellyG

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Re: pyramid bow
« Reply #33 on: September 01, 2015, 10:02:00 AM »
oK here is the issue.

   

 

Ok if the weather holds she will get some bacon grease on her then heated up. To get it better.
Once I am sure I have that done I will work on the handle and tips. I have a big ole bull snake I got off the road last spring. Then tru oil  and in a tube God willing next week.

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