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Author Topic: My 2015 bow  (Read 46674 times)

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Offline Badger

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Re: My 2015 bow
« Reply #15 on: January 01, 2015, 08:16:51 pm »
  Thanks Jawge, Pat, I have a nightmare trying to keep the string aligned with anymore curve at the tips. Not one of my stronger bow building points. Even as it is I am surprised at how flat the force draw is.
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Offline sleek

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Re: My 2015 bow
« Reply #16 on: January 01, 2015, 08:27:19 pm »
I just tried to build a bow like this. I failed. Super thin rings on the osage was so hard to chase that by time I got a ring chased the stave went from 2.5" wide to 1 1/8" wide. It was very wedge shaped.  So im looking at 45# and reflexed tips again. Got 3 more staves though. Darn you badger, you're gonna make me burn through my staves chasing this design.
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Tread softly and carry a bent stick.

Dont seek your happiness through the approval of others

Offline Jesse

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Re: My 2015 bow
« Reply #17 on: January 01, 2015, 10:03:34 pm »
Thats some huge reflex 8)  very cool. what draw length are you shooting for?
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"If you can find a path with no obstacles, it probably doesn't lead anywhere."
    --Frank A. Clark

Offline bradsmith2010

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Re: My 2015 bow
« Reply #18 on: January 01, 2015, 10:12:47 pm »
whats the force draw curve looking like :)
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Offline Badger

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Re: My 2015 bow
« Reply #19 on: January 02, 2015, 02:25:40 am »
  I plan to clean it up tomorrow and hopefully chart the draw curve. I may give it another heat treat. I am kind of worried it might drop more weight as I draw it out further. I want to find the sweet spot and stop, hopefully no less than 26". 28" ideally.
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Offline hedgeapple

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Re: My 2015 bow
« Reply #20 on: January 02, 2015, 02:45:06 am »
WOW! just WOW!
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Dave   Richmond, KY
26" draw

mikekeswick

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Re: My 2015 bow
« Reply #21 on: January 02, 2015, 04:03:47 am »
Interesting!
PatM - How about the handle?!  ;)
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Offline redhawk55

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Re: My 2015 bow
« Reply #22 on: January 02, 2015, 07:42:17 am »
Great bow, very well and clever done. You know, I'm in a very similiar design, but found it never that delicious to line such a design up. Even when the tips are very small. Finally dry heat has done the job.

I swear you'll never do another design.

Great flights in 2015, Michael
« Last Edit: January 02, 2015, 09:07:27 am by redhawk55 »
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..........the way of underdoing.............

Offline rps3

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Re: My 2015 bow
« Reply #23 on: January 02, 2015, 09:31:43 am »
Wow! Cool bow, will be following along.
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Offline Lukasz Nawalny

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    • Camelot bows
Re: My 2015 bow
« Reply #24 on: January 02, 2015, 12:54:13 pm »
It is selfbow ? Very intresting idea, looks similar like crab bows
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Offline Badger

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Re: My 2015 bow
« Reply #25 on: January 02, 2015, 01:15:43 pm »
     Good news or bad news first? Bow far exceeded my expectations but will have to be rebuilt as I grossly misjudged the high fdc and the bow came in lighter than I expected. I should have listened to my own mass formula!.

     The good news, exeptional FDC bow stores 119.8% of draw weight. About 96% is more typical. Draw weight is only 38.8 # at 28". Stores 46.5# energy. I still plan to shoot the bow in the 50# class and will give it to a youth to shoot in the 35# class.

    I need to verify this last one as my chrono is not working right but I did get 2 readings with a 385 grain arrow (10 grains per pound) one was 201 and one was 202. I hope this checks out. My former best with a self bow is 184 fps.

   When I rebuild the bow as a 50# I will need to find a stave with a very low crown as I plan to go 2 1/4 wide in the working area and I want it as flat as possible. I never have been the best at execution. With only 12" working limb its really hard to avoid taking set.

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Offline sleek

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Re: My 2015 bow
« Reply #26 on: January 02, 2015, 02:15:59 pm »
Steve, did you just break the 200fps mark with a 10 gpp arrow?
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Tread softly and carry a bent stick.

Dont seek your happiness through the approval of others

Offline Jesse

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Re: My 2015 bow
« Reply #27 on: January 02, 2015, 02:19:13 pm »
201 at 10gpp would be amazing indeed. Hope it checks out. Are you shooting through the chrony outside?
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"If you can find a path with no obstacles, it probably doesn't lead anywhere."
    --Frank A. Clark

Offline Badger

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Re: My 2015 bow
« Reply #28 on: January 02, 2015, 02:37:08 pm »
  It would work out to be about 75% efficiency at 202 fps which is not unreasonable, about what I would expect. I think it is a good reading but I don't want to claim it as fact yet. I took the reading outside in morning light.
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Offline sleek

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Re: My 2015 bow
« Reply #29 on: January 02, 2015, 02:56:28 pm »
I have a chronograph you can borrow if you want to double check? Where you at?
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Tread softly and carry a bent stick.

Dont seek your happiness through the approval of others
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