Recent Posts

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Muzzleloaders / Score!
« Last post by Eric Krewson on Today at 10:45:12 am »
I haunt the Facebook Marketplace, mostly for good deals on canning jars, used 20# propane bottles for a song and anything else that catches my eye.

I saw this lot for sale this week for $100, the molds and dipper alone are worth $100. If I keep this stuff I will need to find a .45 barrel for my TC Hawken. I have two TC Hawkens, one in .50 and .54 but not in .45



I met the guy and it turned out he was settling his dad's estate and wanted to get rid of a lot more stuff so he thew it in on deal. Black powder never goes bad, I suspect this full can of 2F is from the 60s along with 5 tins of #11 caps, the price tag on the can is $4.95. I asked if he wanted to sell his dad's gun but he wanted to hold on to it. With the 13/16" TC breechplug wrench in the box the gun has to be a Senica or Cherokee which are more valuable than the Hawken or Renegade.

   
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Bows / Re: Back to something fun
« Last post by Del the cat on Today at 07:14:00 am »
Sweet little cabin :)
Very satisfying building something like that.
Del
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Bows / Re: Back to something fun
« Last post by Pat B on May 17, 2024, 11:33:47 pm »
I'll bet Momma will be happy and I know you are.  :OK
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Bows / Re: Stress and performance
« Last post by Aussie Yeoman on May 17, 2024, 10:37:51 pm »
Ah yes I see where you're going.

I think the warmer rabbit hole would be working strain against mass compared to arrow speed. Yew, for example, has quite a low stiffness but can accommodate a prodigious amount of working strain.
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Bows / Re: Has anyone here made a deflex takedown sleeve?
« Last post by Aussie Yeoman on May 17, 2024, 10:35:09 pm »
There's still a Connexion-style hinge being made by a broadhead manufacturer (not sure if I can say their name or not). The hinge is not on the website but if you email they'll send a brochure.

Still costs $100USD. There's a straight layup version and a version that will accommodate up to 11 degrees past flat.

That three-plated hinge looks fascinating. The pins must be mighty tough indeed.
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Bows / Re: Stress and performance
« Last post by willie on May 17, 2024, 10:34:37 pm »
Oh! Yes, I have. When I've done bend tests in the past I've most usually also measured density.

I was thinking of both sort of.   deriving a    mass/moe  value and plotting it against some performance metric like arrowspeed

I guess if you have bend tests of the timber used in good performing bows and can still evaluate the working mass, it might be useful
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Bows / Re: Stress and performance
« Last post by willie on May 17, 2024, 10:30:12 pm »
Arvin,
if you overbuilt the entire linb you would lower the actual stress throughout the entire limb, which might incur a mass penalty.  I dont think it matters if the first few inches coming out of the fades were thicker or wider so long as its stiffer.

Badger used to leave the inners on the stiffside as he tillered out, and brought the bend in towards the handle more if it looked like he was getting too much set too early. My guess is that near handle set is to be avoided more over set taking further out.  Perhaps he is reading along
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Bows / Re: Stress and performance
« Last post by Aussie Yeoman on May 17, 2024, 10:28:03 pm »
Oh! Yes, I have. When I've done bend tests in the past I've most usually also measured density.

Alas, all my data are on a computer that recently died and I've not yet tried to rescue them. But the data do exist.
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Bows / Re: Stress and performance
« Last post by willie on May 17, 2024, 10:15:44 pm »
Do you mean grams of bow mass against the stiffness or stress of the timber against arrow speed? No, I haven't. Could be interesting though.

grams of mass/MOE as determined by a bend test of the wood.
I guess you could calculate out the actual stress.........
but either way, you would need a bend test of the wood for the next bow to plan acordingly.
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Bows / Re: Stress and performance
« Last post by Aussie Yeoman on May 17, 2024, 10:02:42 pm »
Do you mean grams of bow mass against the stiffness or stress of the timber against arrow speed? No, I haven't. Could be interesting though.
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