Author Topic: Experimental Limbs...  (Read 862 times)

Online Shredd

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Experimental Limbs...
« on: August 16, 2019, 11:59:01 AM »
I'm gonna do a short build here on experimental limbs...  The bow is gonna be designed for a shorter draw length and weights ranging from 30# to 35#...  Here is a pic of the form...  I used the rope down method to save time on a experimental form...  Using the rope down method, the form can be easily changed if I m not happy with the design...  Once I get everything satisfactory I will copy the design over to a one piece bow design...


Online Mad Max

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Re: Experimental Limbs...
« Reply #1 on: August 16, 2019, 03:16:52 PM »
Awesome
"nothing ventured ,nothing gained"

Online Mad Max

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Re: Experimental Limbs...
« Reply #2 on: August 16, 2019, 04:31:12 PM »
What is the Max draw going to be Rich ?
"nothing ventured ,nothing gained"

Online Shredd

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Re: Experimental Limbs...
« Reply #3 on: August 16, 2019, 04:57:20 PM »
My guess is she will start stacking hard at around 29"...  No telling...  I am breaking into new ground for myself...  I am sure this is just the beginning of a bunch of Tweaks...

Online Shredd

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Re: Experimental Limbs...
« Reply #4 on: August 19, 2019, 02:21:49 PM »
  Here she is with limbs on riser with 5 degree pad angle, 62" ntn...  I will see how the numbers are and how she shoots on all three risers and then maybe pike her down to 60"...





Online Crooked Stic

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Re: Experimental Limbs...
« Reply #5 on: August 19, 2019, 04:34:39 PM »
This will be interesting.
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Online Shredd

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Re: Experimental Limbs...
« Reply #6 on: August 19, 2019, 04:45:17 PM »
Got the limbs strung up...  Hit the weight dead on at 32#...   :o  Unbelievable!!   They look good, bend real nice too but are a bit vertically unstable...  I will do a DFC, speed tests and some experiments with these and then decide what steps to take as far as making  another design...


Online Mad Max

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Re: Experimental Limbs...
« Reply #7 on: August 19, 2019, 04:59:55 PM »
Watching   :thumbsup:

 :campfire:
"nothing ventured ,nothing gained"

Online Shredd

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Re: Experimental Limbs...
« Reply #8 on: August 19, 2019, 05:01:26 PM »
Drawn to 26"...


Offline Wolftrail

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Re: Experimental Limbs...
« Reply #9 on: August 19, 2019, 05:42:00 PM »
Looks like its stacking

Online Shredd

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Re: Experimental Limbs...
« Reply #10 on: August 19, 2019, 08:13:39 PM »
I bet that you are right... I think it is hitting the wall at 26"...  Also remember those fades are about an inch or more in front of where they are gonna be in a one piece bow...  A lot to factor in here...

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Re: Experimental Limbs...
« Reply #11 on: August 19, 2019, 08:22:43 PM »
That's the 5*, what were the other 2 risers?
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Online Flem

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Re: Experimental Limbs...
« Reply #12 on: August 19, 2019, 08:32:42 PM »
What draw length were you shooting for, Shredd?

Online Mad Max

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Re: Experimental Limbs...
« Reply #13 on: August 19, 2019, 09:05:27 PM »
Making that riser shorter would help. :)
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Online Shredd

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Re: Experimental Limbs...
« Reply #14 on: August 19, 2019, 09:29:52 PM »
Max... The other risers are not made yet... Gotta work on them...  I can already tell that any more angle and its just gonna be more unstable...  Its passable now but I would like to see it more stable...  That riser is 15"...  I can't hardly go any shorter...

Flem... The plan is to make this bow for people who draw under 27"...

   I did a quick shoot before dark...  It shoots nice and seems to be pretty quick...  I need to make a skinny string for it before I can put it through the chrony...

Online Crooked Stic

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Re: Experimental Limbs...
« Reply #15 on: August 19, 2019, 09:49:04 PM »
Lighter weight bows gonna be more floppy. What taper you got in the limbs. If you are going to 27. then you want it starting to stack  about 28. If you want to adjust to every draw then you need to move your fades in or out.
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Online Shredd

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Re: Experimental Limbs...
« Reply #16 on: August 19, 2019, 11:40:07 PM »
Mike...  Good Advice... I got a .003" total taper...

 I went with my standard hyper lam...  I think it is a bit too thick in the tip area creating the instability...  When you scale down I guess you have to scale everything down... I will try and thin that out a little and pull in the the wedge section at the fades about 3/4" or thin it out a hair...  On these limbs I might try trapping the last 8" of them and see what happens...

   I was just looking at the pic where the bow is drawn... Being that the limbs are over 1" above where they would be on a one piece bow and that riser is extra deep, the bow in the pic is drawn to about 27 1/2"...  I will measure it tomorrow...
« Last Edit: August 19, 2019, 11:53:06 PM by Shredd »

Online Shredd

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Re: Experimental Limbs...
« Reply #17 on: August 20, 2019, 04:17:46 PM »
  The bow in the pi is actually drawn to 27" and the string is a little on the short side...

Offline Hoosierarcher88

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Re: Experimental Limbs...
« Reply #18 on: August 21, 2019, 03:20:18 AM »
Any thought on the final concept being a forward handle? That would essentially move the stack back. Could make for a very efficient average to shorter draw setup. Just a thought as i dont make bows but really enjoy shooting all the different styles.
Northern mist Shelton 66" 53# @ 28"

Online Pat B

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Re: Experimental Limbs...
« Reply #19 on: August 21, 2019, 08:24:38 AM »
Try adding a little more reflex to the tips. That should increase the draw length.
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