Author Topic: Pyramid Board Bow Questions  (Read 715 times)

Offline razorback

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Pyramid Board Bow Questions
« on: January 25, 2010, 12:21:00 PM »
Ok, I posted in 4est's build along page that I had one in the works and since I found our camera I can give pics with the questions.
First: How is the tiller.

Unbraced.
 

Braced.
 

15 Inches.
 

20 Inches.
 

24 Inches.
 

Second: Due to the design of the bow, the straight grain I found runs out the side of the bow at one point. Is this going to be a problem. Seems like it is unavoidable with the sharp taper on this style of bow.

 
Keep the wind in your face and the sun at your back.

Offline John Scifres

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Re: Pyramid Board Bow Questions
« Reply #1 on: January 25, 2010, 02:24:00 PM »
Looks good to me.  That's a good, sweet drawing, no stack tiller design.  It's really become my favorite profile.  Round in the middle, stiffer in the outer third.  6" of non-bending tips.  Since your tips don't bend a whole lot, make sure and reduce mass there by narrowing them as much as possible.
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Offline stretch2

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Re: Pyramid Board Bow Questions
« Reply #2 on: January 25, 2010, 05:07:00 PM »
i am no expert but it looks good to me

Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #3 on: January 25, 2010, 05:23:00 PM »
Dors the run out look like a problem to anyone.
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Offline 4est trekker

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Re: Pyramid Board Bow Questions
« Reply #4 on: January 25, 2010, 06:02:00 PM »
The runouts are inevitable.  But, they are offset by the large working area on the back of the bow.  There's so much wood going into tension that the runouts won't become overstressed and fail. (At least in theory.  Sometimes they do fail, but yours look fine to me.)  It is critical that you round over the limbs' edges, however, or the sharp edge will give at the runouts.

Great looking bow, by the way!  Absolutely my favorite profile/tiller, as John said!  Thanks for posting!
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Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #5 on: January 25, 2010, 06:57:00 PM »
I will get it finished up in the next day or two and post some final pics. Have to shoot a bunch of arrows through it to make sure the tiller stays the same. I think it will come in at around the 45# mark. I plan on using it at the Joan leonard  Memorial Bunny Hunt at the end Febuary, in New York.
Keep the wind in your face and the sun at your back.

Offline bamboo

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Re: Pyramid Board Bow Questions
« Reply #6 on: January 27, 2010, 08:10:00 AM »
looks pretty good tony--round the edges good
the rabbits are already shaking!!!
-------------mike
Mike

Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #7 on: January 27, 2010, 08:22:00 AM »
Thanks Mike. If she don't blow up on me I will definetly bring it along. If nothing else it is wide enough to shield me from some of those legendary briars. I hope.
Keep the wind in your face and the sun at your back.

Offline George Tsoukalas

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Re: Pyramid Board Bow Questions
« Reply #8 on: January 27, 2010, 02:06:00 PM »
Tiller looks great. grain looks good. What's your draw length? Jawge

Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #9 on: January 27, 2010, 02:27:00 PM »
Draw length on my recurve is 29-29 1/2. I have heard that longbows use a shorter draw. My string broke so have to twist up another one to finish it off. Should get that done tonight.
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Offline soopernate

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Re: Pyramid Board Bow Questions
« Reply #10 on: January 27, 2010, 03:59:00 PM »
Thats a new one on me...longbows using a shorter draw.  I think my draw is the same no matter what I am shooting whether it be a longbow or a recurve.
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Offline George Tsoukalas

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Re: Pyramid Board Bow Questions
« Reply #11 on: January 27, 2010, 04:15:00 PM »
I drew a recurve 29 in. I draw my selfbows 26 in. That could be old age.  :)  Jawge

Offline soopernate

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Re: Pyramid Board Bow Questions
« Reply #12 on: January 27, 2010, 04:57:00 PM »
Maybe I am just misinterpretting what I am reading(not unusual) I draw to the same anchor point no matter what bow I shoot and use the same form therefore I use the same draw no matter what I shoot...and similarly I use the same length arrows.
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Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #13 on: January 27, 2010, 07:31:00 PM »
I'm just going on what I read. Havn't had much experience with selfbows or long bows. I will find out soon enough  :)  The bow is 67" ntn 3' at its widest tapering to 1/2" nocks, to be thinned. The Handle/Riser area is about 10" making for about 28" of working limb. I think weight will come in about 45# with sanding and shooting in, which is very close to what I was looking for.
Keep the wind in your face and the sun at your back.

Offline razorback

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Re: Pyramid Board Bow Questions
« Reply #14 on: January 27, 2010, 07:34:00 PM »
ot the string twisted up this afternoon, so can continue finishing up tonight. very happy to get the string right. They have been giving me fits to get right but re-read Sam Harpers instructions and realised I was doing too much twisting and that was causing all the poblems. got it now, thanks Sam.
Keep the wind in your face and the sun at your back.

Offline ron w

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Re: Pyramid Board Bow Questions
« Reply #15 on: January 28, 2010, 01:12:00 PM »
Looks good to me,hope to meet you at the bunny hunt.....
In the beginner's mind there are many possibilities. In the expert's there are few...So the most difficult thing is always to keep your beginner's mind...This is also the real secret of the arts: always be a beginner.  Shunryu Suzuki

Offline Sal

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Re: Pyramid Board Bow Questions
« Reply #16 on: February 01, 2010, 10:29:00 PM »
Talk about protecting you from briars, 3' wide is a sheild!

I know you meant 3", which is still pretty wide.  Tiller looks good, grain as well.

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