Main Discussion Area > Bows
Tip string grooves
pierce_schmeichel:
--- Quote from: GlisGlis on October 09, 2024, 09:46:29 am ---one thing that puzzles me is the pronounced V notch shape of the pajute bow fragments
It seems to me that a U shape would be more appropriate and would reduce the risk of the tip splitting
--- End quote ---
I was thinking that exact same thing, but if you're using stone tools making a U notch is a little more tricky, definitely doable. When you wrap sinew inside the v notch it mellows out that V more into a U shape and then when you wrap the tip laterally with sinew it doesn't have a chance to break.
The sinew wrapped at the tip laterally also has a second purpose. It gives the string loops a little more to grip onto. Kind of like a traditional sinew nock.
mmattockx:
How would one go about using this with a synthetic string? It seems to me the loops can't be served if they need to bend back on themselves to come back over the tips to the belly side.
Mark
pierce_schmeichel:
--- Quote from: mmattockx on October 09, 2024, 01:02:48 pm ---How would one go about using this with a synthetic string? It seems to me the loops can't be served if they need to bend back on themselves to come back over the tips to the belly side.
Mark
--- End quote ---
If you're doing an endless loop string you could take the loops and flip them in on themselves to turn them into slip knots. I'll post some examples of what I mean(forgive the ugly polyester sting haha, it's all I had on me)
And regarding the serving I'm not exactly sure but it should hold up. I think if you served it normally you would still be fine. Maybe I'm wrong cuz I'm not a huge expert on synthetic stings but the compound bows I've looked at have aggressive curves and bends like that in them and they seem to hold up fine.
bassman211:
What puzzles me is the physics behind it. I can't see how you are getting 20 fps more not that I don't believe you, but the difference in speed could only be marginal in my mind. Guess I will have to try it to prove it to myself.
pierce_schmeichel:
I was able to remove a lot of mass from the width of the bow as well. Since the singular V notch only really needs to be about as wide as your strings diameter, you can remove a loooooot of mass. You can get the tips as narrow as a pencil. I didn't get them that thin on this bow, but you definitely can.
The string also may be experiencing less friction due to its singular contact point at the tips. Maybe not on that one idk just a thought.
Another note, I could see this string nock style benefiting heavier woods like osage because reducing mass is more crucial on those heavy woods.
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