Author Topic: TD Longbow design - Need help - New "Curves"  (Read 750 times)

Offline MB_Sweden

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TD Longbow design - Need help - New "Curves"
« on: December 17, 2013, 05:55:00 AM »
Hello guys
I need your help and feedback
I have built a couple of Recurves and One piece longbows!
Trying to build/design a TD Longbow 62" using a 16" Riser with 12° limbpad angle!
I have 2 alternative so far:

Am I on the right track ?
Please let me know which design you like best?

   
Martin From Sweden

Offline Buemaker

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Re: TD Longbow design - Need help - New "Curves"
« Reply #1 on: December 17, 2013, 10:34:00 AM »
If the dots on the lines are the bow tips or string notches I would go with nr. 1. Depends of course on wedge lenght , taper rate and so, but on average nr. 1 should give a faster, but still sweet shooting bow, with a fatter draw force curve. Bue--.

Offline MoeM

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Re: TD Longbow design - Need help - New "Curves"
« Reply #2 on: December 17, 2013, 11:15:00 AM »
Yeah I`d take 1 too!

Offline beachbowhunter

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Re: TD Longbow design - Need help - New "Curves"
« Reply #3 on: December 17, 2013, 11:41:00 AM »
I would go with No 2 but drop the angle to 10*
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Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #4 on: December 17, 2013, 12:40:00 PM »
Thanks guys!
Yepp, Dots on the lines is string grove for a 64" NTN.
Martin From Sweden

Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #5 on: December 17, 2013, 01:34:00 PM »
Should I change the curve on some of the limbs?
I try to understand what Im looking for in the limb!

Any recomendation for taper and wedge lenght for limbs?
Martin From Sweden

Offline MoeM

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Re: TD Longbow design - Need help - New "Curves"
« Reply #6 on: December 17, 2013, 03:34:00 PM »
Reminds me a bit of my 62-64" (1-pc)  LB, 10° limbpadangel 17"... so I`d use either short wedges and a .004 taper or half the taper and very long wedges like p-lams.

Offline Swissbow

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Re: TD Longbow design - Need help - New "Curves"
« Reply #7 on: December 17, 2013, 05:48:00 PM »
Quote
Originally posted by swedisciple:
Should I change the curve on some of the limbs?
I try to understand what Im looking for in the limb!

Any recomendation for taper and wedge lenght for limbs?
I would go with nr. 1. and leave it the way it is. I'm sure it will build a very fine bow. If I wanted to build a short d/r bow ( 60" or less ) I would go with nr. 2, but i would move the part where the limb starts to bend upwards closer to the riser.
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Andy

Offline Crooked Stic

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Re: TD Longbow design - Need help - New "Curves"
« Reply #8 on: December 17, 2013, 07:54:00 PM »
No. 1 looks good --except I would take the deepest part of the deflex to mid limb before going up with your reflex.
High on Archery.

Offline Pheonixarcher

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Re: TD Longbow design - Need help - New "Curves"
« Reply #9 on: December 18, 2013, 12:20:00 AM »
It really depends on what profile you are looking for at brace, and the draw length you are going for. Either design will work great with the right lams. What sort of specs are you aiming for?
Plant a fruit or nut tree today, and have good hunting tomorrow.
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Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #10 on: December 18, 2013, 01:23:00 AM »
Thanks
Aimong for
62-64" NTN
40-45# @ 28"

Really like when limbs are straight or a bit reflexed in top when bow is braced!
Martin From Sweden

Online BigJim

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Re: TD Longbow design - Need help - New "Curves"
« Reply #11 on: December 18, 2013, 07:13:00 AM »
Number too will give you very little early draw weight...without that you will have a lethargic bow. Number one is slightly better, but depending on how much taper you have in width and thickness, it may also do the same.

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Online BigJim

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Re: TD Longbow design - Need help - New "Curves"
« Reply #12 on: December 18, 2013, 07:14:00 AM »
Number too will give you very little early draw weight...without that you will have a larthargic bow. Number one is slightly better, but depending on how much taper you have in width and thickness, it may also do the same.

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Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #13 on: December 18, 2013, 07:21:00 AM »
Thanks for all feedback!
Some new curves, have I understand it ?  :)
 
Martin From Sweden

Online kennym

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Re: TD Longbow design - Need help - New "Curves"
« Reply #14 on: December 18, 2013, 08:59:00 AM »
Not a bowyer, but I like the old #2 because it doesn't look as hingy at end of wedge.

 But move the nocks at least an inch to target side of riser. Like Jim said, it will help performance and also quiet a bow,it did mine anyway when I went from 14* pads to 12* with same limb.
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Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #15 on: December 19, 2013, 05:10:00 AM »
Im starting to loosing it  :)
Im trying to get a mix from all feedback, to mutch for my little brain!
Maybe I should stay with recurves?
Or does anybody has a nice pattern to sale?
Martin From Sweden

Offline bowhntineverythingnh03743

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Re: TD Longbow design - Need help - New "Curves"
« Reply #16 on: December 19, 2013, 05:20:00 AM »
Kenny M has some proven once piece longbows and I remember him saying he has a new pattern that he would like some feedback on... Maybe hit him up with a message or something.

Offline MB_Sweden

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Re: TD Longbow design - Need help - New "Curves"
« Reply #17 on: December 29, 2013, 03:31:00 PM »
This is still giving me headache  :)

Anybody here that can sell me a pattern for a 62" or 64"  TD longbow?
Martin From Sweden

Offline M.Kerry Bird

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Re: TD Longbow design - Need help - New "Curves"
« Reply #18 on: December 30, 2013, 11:16:00 AM »
The bingams projects t/d longbow is a proven performer being built and sold by dozens of bowyers. The blueprints only cost about  $10. Can be built in lengths of 58-68"

Offline beachbowhunter

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Re: TD Longbow design - Need help - New "Curves"
« Reply #19 on: December 30, 2013, 11:32:00 AM »
I can email you a file in Adobe Illustrator with my profile if you like...
Ishi was a Californian                   :cool:

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