« previous next »
Pages: [1]

Author Topic: Shortening limbs formula ?  (Read 2594 times)

0 Members and 2 Guests are viewing this topic.

Offline NOMADIC PIRATE

  • Member
  • Posts: 1,910
Shortening limbs formula ?
« on: October 23, 2015, 06:46:28 pm »
Been out of this for sometime and forgot several things  :'( :'(

I wanna shorten the limbs on my new Osage flatbow to gain some weight, ...what is the weight gain per inch again ?


Thanks
Logged
NORTH SHORE, HAWAII

Offline JonW

  • Member
  • Posts: 1,906
Re: Shortening limbs formula ?
« Reply #1 on: October 23, 2015, 07:10:35 pm »
I think typically 5#/ inch
Logged

Offline NOMADIC PIRATE

  • Member
  • Posts: 1,910
Re: Shortening limbs formula ?
« Reply #2 on: October 23, 2015, 07:46:58 pm »
One inch per limb or one inch total ?
Logged
NORTH SHORE, HAWAII

Offline bubby

  • Member
  • Posts: 11,054
Re: Shortening limbs formula ?
« Reply #3 on: October 23, 2015, 10:50:56 pm »
Per limb
Logged
failure is an option, everyone fails, it's how you handle it that matters.
The few the proud the 27🏹

Offline Del the cat

  • Member
  • Posts: 8,322
    • Derek Hutchison Native Wood Self Bows
Re: Shortening limbs formula ?
« Reply #4 on: October 24, 2015, 04:06:54 am »
You can "try before you buy" by binding the string tight down onto the limb say 1" down from the nock and seeing what it weighs!
Del
Logged
Health warning, these posts may contain traces of nut.

Offline Bowyer Wannabe

  • Member
  • Posts: 26
Re: Shortening limbs formula ?
« Reply #5 on: October 24, 2015, 07:03:59 am »
Here is the exact formula, presented by Mike form Boarrior Bows.
I have tested the formula on one of my hazel stave bows and it was spot on.

https://www.youtube.com/watch?v=4unczZmmcLo
Logged

Offline Aries

  • Member
  • Posts: 493
Re: Shortening limbs formula ?
« Reply #6 on: October 24, 2015, 09:24:26 am »
Del I use your method  ;D
Logged
"If the only tool you have is a hammer,
                   you tend to see every problem as a nail."
                               ~Abraham Maslow

Offline Springbuck

  • Member
  • Posts: 1,545
Re: Shortening limbs formula ?
« Reply #7 on: October 24, 2015, 11:15:44 am »
  I second Del's method, which can also be used to make small adjustments on tiller.

  The amount the weight changes will vary with bow style, length and geometry, too.  Taking two inches total off a 50" bow is proportionally a lot more than taking two off a 72" bow, so expect a bigger jump in draw weight, with accompanying increased set stacking, and/or breakage.
Logged
Pages: [1]
« previous next »