Author Topic: Done! Buckthorn shorty Perry reflexed?(sorta)  (Read 8090 times)

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Offline DuBois

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Done! Buckthorn shorty Perry reflexed?(sorta)
« on: April 06, 2013, 05:55:31 pm »
Finally to the tillering stage. (accidentally deleted the pics) See pics at end.
I have never tillered a short sinewed bow with reflex so it is a bit different for me.
It is 49" NTN, 1.5" at fades and 1/2" at tips with osage overlays.
3 layers deer leg sinew with knox.
2.75" reflex.
What draw weight do you think I should reasonably be shooting for on this?
How she looking?
Thanks Y'all
Doob

« Last Edit: February 09, 2014, 11:38:40 am by DuBois »

Offline Zion

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Re: Rhamnus cathartica tiller check please
« Reply #1 on: April 06, 2013, 08:16:30 pm »
On the right limb the fade to midlimb needs to bend more. The left limb needs to bend more in general and the fade and outer 3rd need to bend more. That's just my observation. You could probably get 65# on this, idk tho, hard to tell from just pics. The reflex looks great!
The secret of life is learning to make your own luck.

Offline DuBois

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Re: Rhamnus cathartica shorty
« Reply #2 on: April 09, 2013, 09:53:24 pm »
Got her bending to 24" draw but ended up at only 35# instead of 45  :o
Man, I am always coming in light!
So I am gonna put a thick course of sinew not quite to the tips to try to gain a little weight and to try to regain a little reflex too.
Not sure on the tiller but will wait for now until after more sinew.
« Last Edit: February 09, 2014, 11:39:02 am by DuBois »

Offline Badly Bent

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Re: Rhamnus cathartica shorty
« Reply #3 on: April 09, 2013, 10:42:14 pm »
Be interested to see how the addition of sinew works out on that one, have some short staves of that myself and don't trust my
current skill level enough to make anything more than a kids bow that short. I know your frustration with coming in under weight, been there myself on my last few builds. You sure are getting some bend out of that bow. Keep us posted, I want to see how this one finishes up.








I ain't broke but I'm badly bent.

Offline mwosborn

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Re: Rhamnus cathartica shorty
« Reply #4 on: April 09, 2013, 11:17:50 pm »
She is really a bending!  Looks like you have about maxed out to me.  Hopefully the added sinew gains you a few pounds.
Enjoy the hunt!  Mitch

Offline DuBois

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Re: Rhamnus cathartica shorty
« Reply #5 on: April 10, 2013, 02:27:09 am »
I slapped on a nice thick crowning course of sinew fading thinner toward tips and have 7.5# weight hanging under it now.

I have never weighted a bow with sinew and not sure if there's a ratio or formula people uwe to know how much weight to use or just personal preferrence?

How long does it need to stay weighted before I can remove weight?

Be interested to see how the addition of sinew works out on that one, have some short staves of that myself and don't trust my
current skill level enough to make anything more than a kids bow that short. I know your frustration with coming in under weight, been there myself on my last few builds. You sure are getting some bend out of that bow. Keep us posted, I want to see how this one finishes up.










I have been trying to slow down so I don't take too much wood off but it is hard for me to judge weight and it seems very heavy until all of a sudden it isn't and I end up wondering what happened again  :o
Soon as there's more action I'll post some more pics.
Thanks for lookin,
Marco

Offline soy

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Re: Rhamnus cathartica shorty
« Reply #6 on: April 10, 2013, 03:19:35 am »
Looking cool....hope it picks up a couple of pounds for you ;)
Is this bow making a sickness? or the cure...

Offline DuBois

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Re: Rhamnus cathartica shorty
« Reply #7 on: April 10, 2013, 10:23:08 am »
Looking cool....hope it picks up a couple of pounds for you ;)
Thanks Soy, we'll see in a couple weeks. I hate waithing  ::)

Do people generally leave a sinewed bow weighted down for reflex for a couple weeks?

Offline missilemaster

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Re: Rhamnus cathartica shorty
« Reply #8 on: April 11, 2013, 12:29:24 am »
Heat temper that puppy! :D
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Offline DuBois

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Re: Rhamnus cathartica shorty
« Reply #9 on: April 11, 2013, 01:54:26 am »
Heat temper that puppy! :D
I would love to but can I do that with the sinew on?

Offline Thesquirrelslinger

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Re: Rhamnus cathartica shorty
« Reply #10 on: April 11, 2013, 02:02:32 am »
Heat temper that puppy! :D
I would love to but can I do that with the sinew on?
I doubt it.
Sinew and any animal material softens when heated
Try keeping it concentrated just on the belly.. and it might work.
"Insanity is doing the same thing over and over again and expecting different results"

Offline Bryce

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Re: Rhamnus cathartica shorty
« Reply #11 on: April 11, 2013, 02:07:31 am »
Heat temper that puppy! :D
I would love to but can I do that with the sinew on?
I doubt it.
Sinew and any animal material softens when heated
Try keeping it concentrated just on the belly.. and it might work.

Not worth the risk.
Clatskanie, Oregon

Offline DuBois

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Re: Rhamnus cathartica shorty-(sorta) tiller check please
« Reply #12 on: May 22, 2013, 01:32:16 am »
I am not to be trusted with a rasp :'( 
I took this way to light and it gained reflex up to 6" from around 3" before I got happy with the rasp.  couldn't get the limbs to even up and never tillered anything with reflex before. I just about resigned to having another kids bow but it seemed wrong with this having sinew and then covered with buckthorn bark. Lots of work into it and lots of firsts for me so I decided not to give up yet. Been over my head thus far so why not keep goin right?

I sanded the belly flat, found some straight grained ERC and cut out a couple belly laminations, and glued em on with TB3. The lams had about 1" reflex and after glue up ended up with about 2.5" reflex with the lower limb having 1/2" pos tiller at this point. Actually got rid of some twist n the upper limb too  ;D
I have been reading about Perry reflex and don't understand it much but  think that may be sorta what I just did?
« Last Edit: February 09, 2014, 11:39:50 am by DuBois »

Offline DuBois

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What you all think?

Offline Woodbender

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If you are blowing past your target weight with the rasp, maybe you need to switch to scraper or sanding block earlier in the tillering process?