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Sneak Peek

Started by Shredd, October 12, 2018, 06:56:45 PM

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Shredd

  Here are a couple pics of the new design... It's just rough sanded and has not been tillered yet...  I feel I got really lucky being that it is the first one...  I may do a little tweaking and stiffen up the tips just a hair...

Roy from Pa


jess stuart

Profile looks great!  Nice job

Crooked Stic

If that is 28 in. it looks good. a couple more in. may need tip wedge.
High on Archery.

Forwardhandle

Nice looking bend what's the stats on it !
If you fear failure, you will never try ! But never except it!!

Shredd

I will have all the numbers in a few days...  Right now she is 64" ntn, 54# and has over 91% string tension...  The DFC also looks pretty good...

Roy from Pa


C. Johnson


Shredd

#8
  Thanks for the good word guys...

   Here are the numbers on that new bow...

   64" ntn / 48.6# / string tension is 92%

  480 gr.    28"/ 185 fps     29"/ 194fps

  500gr.     28"/ 180 fps     29"/ 188fps

[attachment=1,msg2825751]

[attachment=2,msg2825751]



Buemaker

Good numbers and curve.

BMorv

Very Nice Shredd.  Good numbers there. 
Can you explain the string tension number and how it was obtained? 
Life is too short to use marginal bow wood

Shredd

#11
    It is the percentage of tension on the string compared to the draw weight on the bow...  I guess it does... The formula is: string tension divided by draw weight times two...

  This bow  DW 48.6 x 2= 97.2   

     ST 89.7 / 97.2 = 92%


BMorv

That makes sense to keep it relative to draw weight.  One more question: how do you measure the tension in the string? 
Life is too short to use marginal bow wood

Shredd

Its just a simple scale in the middle of a bow string...  Turnbuckle is for adjustment..   Here is a pic I sent on another forum of a grinder...  The scale on the string just happens to be in it...

[attachment=1]

BMorv

Thanks for the pic.  That's exactly what I had envisioned in my mind... I had no idea the string tension was that much.  89.7 lbs.  Is that normal?

Life is too short to use marginal bow wood

Shredd

String tension is close to double the draw weight...

Bvas

Quote from: Shredd on October 17, 2018, 01:16:00 PM
    It is the percentage of tension on the string compared to the draw weight on the bow... I made up a formula in which I did not know if it would go over 100%... I guess it does... The formula is: string tension divided by draw weight times two...

  This bow  DW 48.6 x 2= 97.2   

     ST 89.7 / 97.2 = 108%

  Might have to modify my formula if it is going over 100%...  It is basically just a reference number that helps me to read the bow better...

I'm not sure if your math in Florida is different than here in Ohio but.......
That's 92.3% not 108 :dunno:
Some hunt to survive; some survive to hunt

Roy from Pa


Bvas

Now Roy......  I'm not trying to insult or make fun. Just wanna make sure all numbers are correct for comparison.

Some hunt to survive; some survive to hunt

Roy from Pa

I got the same answer as you did so I guess Ohio and Pa are on the same page..

92.3%

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