Author Topic: Heavy WhiteWood Bow Profile  (Read 7984 times)

0 Members and 1 Guest are viewing this topic.

Offline VicNova

  • Member
  • Posts: 238
Heavy WhiteWood Bow Profile
« on: February 04, 2014, 11:36:07 pm »
Could some people please post  pictures or direct me to some post that show the wide limbed profile of a heavy whitewood bow.

 I am just trying to see how different people start tapering the limbs to meet the tips. If you have a different design that works good for whitewoods up to 60# and 66" or longer, tell me about that too. 

This 58# Red oak flatbow has 2" wide limbs that work great and keep set low however, I would like to make my limb profile look sleeker, You know what I mean?
« Last Edit: February 04, 2014, 11:43:18 pm by Victor99 »
Ypsilanti,  Michigan

Offline PatM

  • Member
  • Posts: 6,737
Re: Heavy WhiteWood Bow Profile
« Reply #1 on: February 04, 2014, 11:55:30 pm »
Get yourself some HHB first.

Offline dwardo

  • Member
  • Posts: 1,456
Re: Heavy WhiteWood Bow Profile
« Reply #2 on: February 05, 2014, 07:46:20 am »
Just my opinion but you need the right bit of wood in the first place to make a heavy bow rather than species of wood.
Like Pat says Hornbeam, wych elm, even good ash but its rare.
You will know when you have the right piece in your hand due to its weight and elasticity.


Offline PEARL DRUMS

  • Member
  • Posts: 14,079
  • }}}--CK-->
Re: Heavy WhiteWood Bow Profile
« Reply #3 on: February 05, 2014, 08:24:28 am »
60# is far from a heavy bow.  2" wide is fine for any suitable whitewoods. Make it longer is all. If 66" makes you a healthy 50# bow, make your 60# bow 2-3" longer with the same exact profile.
Only when the last tree has died and the last river has been poisoned and the last fish has been caught will we realize we cannot eat money.

Offline Marc St Louis

  • Administrator
  • Member
  • Posts: 7,877
  • Keep it flexible
    • Marc's Bows and Arrows
Re: Heavy WhiteWood Bow Profile
« Reply #4 on: February 05, 2014, 08:46:30 am »
Your profile looks good although the outer limbs are bending a bit too much.  HHB is good choice for a heavy bow as is Osage and Elm but I wouldn't bother with White Ash. 

The length has nothing to do with draw weight but rather draw length.

This is a 75# HHB I made several years ago.  It was 65" long with 1 1/2" wide limbs.



Home of heat-treating, Corbeil, On.  Canada

Marc@Ironwoodbowyer.com

Offline WillS

  • Member
  • Posts: 1,905
Re: Heavy WhiteWood Bow Profile
« Reply #5 on: February 05, 2014, 10:00:38 am »
White wood warbows from ash, hazel or holly are usually kept parallel until midlimb, tapered to 22mm at the tip for long string tillering and then the tips reduced to half inch for horn nocks and final tillering.

The cross section is best described as lenticular - a heavily flattened oval with a 2:1 width:depth ratio.  Using this profile and cross section you can make white wood bows up to 170# with very low set and good performance.

Offline PatM

  • Member
  • Posts: 6,737
Re: Heavy WhiteWood Bow Profile
« Reply #6 on: February 05, 2014, 10:41:47 am »
I think he wants to build a narrower bow which is why I recommended HHB. Elm would be fine as well. At a max of 60 pounds you can easily make it just 1.5" wide and achieve that sleeker profile.

Offline half eye

  • Member
  • Posts: 3,300
Re: Heavy WhiteWood Bow Profile
« Reply #7 on: February 05, 2014, 10:57:15 am »
Here are a few pictures of narrow profile white wood self bows. They are hard maple, yellow birch, and American beech. The weights are between 58# and 61# @ 26 inches. 2 of them are 52" ntn and the other is 54" ntn (beech). All of these are Native American types and double curved, 2 with "flipped tips" and one with straight tips. Retangular in section.
      I see your bow has a rigid handle (mine are "d" bows with bendy handles) so I dont know if these are of interest to you. These were made to explore the "typical" hardwood self bows of the Natives at the dimensions stated in the museum specimens. The bows are between 1.12" and .997" wide at the grip and are 6" parallel with slow strait tapers to 3/4" tips. I dont make them to any particular specs other than the width and taper, then simple belly taper to the draw length and weight desired.
     Like I said, these aren't the same style as yours, but maybe of some use to you.
rich 

Offline Thesquirrelslinger

  • Member
  • Posts: 1,245
Re: Heavy WhiteWood Bow Profile
« Reply #8 on: February 05, 2014, 11:27:47 am »
Actually, making a heavier bow longer makes it less strained- more wood per draw length. It also slows it a bit.
It is easily possible to make a heavy white wood longbow. Just make it 70" long or so.
also, if the piece of wood sucks, make it longer. or wider.
English warbows were 80+ in long.
and they were YEW.
you can make a very good bow of white wood... just make it long or wide to account for draw weight.
10# of draw weight doesn't actually put that much more strain on the wood.
I have a 72" bow, hickory bellied, maple back... had 1" of reflex. Hickory belly is very crowned. Very.
I draw it to 28" and 61#... and it still has roughly 1/2 inch reflex.
"Insanity is doing the same thing over and over again and expecting different results"

Offline PatM

  • Member
  • Posts: 6,737
Re: Heavy WhiteWood Bow Profile
« Reply #9 on: February 05, 2014, 12:14:26 pm »
I think you are missing the point. He wants to streamline a heavier whitewood bow, he seems very aware that making it longer and wider is an easy solution to getting a workable bow.
 A HHB or Elm 1.5" wide and 64" long is the perfect solution.

Offline PAHunter

  • Member
  • Posts: 677
  • "If your not having fun, what's the point?" - Khan
    • Victory Before Combat (My YouTube Page)
Re: Heavy WhiteWood Bow Profile
« Reply #10 on: February 05, 2014, 01:30:20 pm »
It looks good to me!  I've made some red oak boards in the 50-60# range that were 1.5'' wide.  I think the wide bows are pretty also.  I can almost picture them in the hands of our American Indian ancestors.  Big bows need love too.  ;)
Thanks,
Rob - Wexford, PA

"Give me six hours to chop down a tree and I will spend the first four sharpening the axe". - Abe Lincoln

mikekeswick

  • Guest
Re: Heavy WhiteWood Bow Profile
« Reply #11 on: February 05, 2014, 03:20:16 pm »
If you don't want to make pyramid bows anymore then start experimenting with a parallel width section which then tapers from it's end to the tips.
Remember above all else to match your tiller to the width taper.....that's the real key to good performance. As Marc says your above pictured bow is bending too much in the outer limbs for a pyramid taper (less energy storage). If you look at the tiller of your bow it would be more suitable for a bow with a short parallel section out of the handle.
Have a look in the Bowyers Bible for a full explanation of circluar/elliptical tiller and where to use them.

Offline VicNova

  • Member
  • Posts: 238
Re: Heavy WhiteWood Bow Profile
« Reply #12 on: February 05, 2014, 03:43:50 pm »
If you don't want to make pyramid bows anymore then start experimenting with a parallel width section which then tapers from it's end to the tips.
Remember above all else to match your tiller to the width taper.....that's the real key to good performance. As Marc says your above pictured bow is bending too much in the outer limbs for a pyramid taper (less energy storage). If you look at the tiller of your bow it would be more suitable for a bow with a short parallel section out of the handle.
Have a look in the Bowyers Bible for a full explanation of circluar/elliptical tiller and where to use them.

That bows not pyramid it does run parallel from handle to mid limb and then I tapered it to about 1/2" tips.
Here are a few pictures of narrow profile white wood self bows. They are hard maple, yellow birch, and American beech. The weights are between 58# and 61# @ 26 inches. 2 of them are 52" ntn and the other is 54" ntn (beech). All of these are Native American types and double curved, 2 with "flipped tips" and one with straight tips. Retangular in section.
      I see your bow has a rigid handle (mine are "d" bows with bendy handles) so I dont know if these are of interest to you. These were made to explore the "typical" hardwood self bows of the Natives at the dimensions stated in the museum specimens. The bows are between 1.12" and .997" wide at the grip and are 6" parallel with slow strait tapers to 3/4" tips. I dont make them to any particular specs other than the width and taper, then simple belly taper to the draw length and weight desired.
     Like I said, these aren't the same style as yours, but maybe of some use to you.
rich 
Thanks for those pictures I think I will try making the bows a little bit wider than 1 3/4" but not quite 2" and build them 66" or longer.  I will plan to start the taper a few inches back from midlimb. I will try that out and see how much set I get in a 60#-65# bow. 
Ypsilanti,  Michigan