Bows that stack
#1
Thread Starter
Join Date: Feb 2003
Location: Jacksonville Fl USA
Posts: 533
Bows that stack
Guys...
I am drawing a xrecurve design to build and want to ask - What design elements contribute to limb stacking ?? I made a R/D long bow 3 years ago and hate shooting it because it stacks pretty heavy...
I will be happy to post drawings of the design / form for input and to share....
Thanks
I am drawing a xrecurve design to build and want to ask - What design elements contribute to limb stacking ?? I made a R/D long bow 3 years ago and hate shooting it because it stacks pretty heavy...
I will be happy to post drawings of the design / form for input and to share....
Thanks
#2
Nontypical Buck
Join Date: Feb 2003
Location: west central wi USA
Posts: 2,242
RE: Bows that stack
A bow that doesn't stack easily will have long recurves at the end of the limbs. A bow will start to stack when the recurves straighten out and the rest of the load is transferred directlyto the limbs. The longer the recurves, the longer the draw length before it stacks.
#3
Fork Horn
Join Date: Feb 2006
Location:
Posts: 116
RE: Bows that stack
Also, what influences the stacking of a bow,is design as well as tiller. A bow should be designed to where to weight gradually goes up, instead of shooting up drasticly. Agree with wingbone, that the longer the length of the bow the less likely to stack.
#4
RE: Bows that stack
Besides bow length to draw length I'd also materials used.
But, I'd really have to say that the design of the bow also has a lot to do with it. For instance, I have a 68" Brack (60#'s at 29") that is very smooth to my 29" draw. But I also have a Bob Lee 60" that is made 61#'s @ 27". The Lee is extremely smooth and does not stack at all. I have a 60" Bear that is 45#'s at 28" that stacks like crazy on me.
But, I'd really have to say that the design of the bow also has a lot to do with it. For instance, I have a 68" Brack (60#'s at 29") that is very smooth to my 29" draw. But I also have a Bob Lee 60" that is made 61#'s @ 27". The Lee is extremely smooth and does not stack at all. I have a 60" Bear that is 45#'s at 28" that stacks like crazy on me.
#5
Dominant Buck
Join Date: Feb 2003
Location: land of the Lilliputians, In the state of insanity
Posts: 26,274
RE: Bows that stack
Usually a bow will stack past the tillered lenght. Also, the lenght of the limbs and or amount of reflex or recurve put into it. Length of limbs is the biggest. This is why we pike the limbs to get more draw weight, when needed. When I make a bow that is intended for a 26" draw lenght, I tiller it to the intended weight at that draw, and if the limbs are fairly short, it will start stacking morepast that draw lenght.
#6
Thread Starter
Join Date: Feb 2003
Location: Jacksonville Fl USA
Posts: 533
RE: Bows that stack
What do you mean by 'PIKE' the limbs ?
My design has a lot of reflex it it- almost borderline a recurve....but I think I made it too short for the 'design' if that makes sense...
It has a limb thickness of .28 total, with a 55# draw weight but Im now doing it with a .24" thickness going for 40-45 BUT making it 3" longer....
My design has a lot of reflex it it- almost borderline a recurve....but I think I made it too short for the 'design' if that makes sense...
It has a limb thickness of .28 total, with a 55# draw weight but Im now doing it with a .24" thickness going for 40-45 BUT making it 3" longer....
#7
Dominant Buck
Join Date: Feb 2003
Location: land of the Lilliputians, In the state of insanity
Posts: 26,274
RE: Bows that stack
Pikeing the limbs is when you end up with a bow lighter than you wanted, so you cut off an inch or so from both limbs to cause it to stack more, there for increasing the draw weight.
#9
Dominant Buck
Join Date: Feb 2003
Location: land of the Lilliputians, In the state of insanity
Posts: 26,274
RE: Bows that stack
ORIGINAL: eightwgt
How much in LBs does 'piking' a r/d longbow typically add ??
How much in LBs does 'piking' a r/d longbow typically add ??
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