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Leaping sling pouch (Read 1124 times)
thabaill
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Re: Leaping sling pouch
Reply #15 - Apr 2nd, 2024 at 1:11pm
 
Hi. Perhaps the best term it is not "pre-opened" but a bit more of a tendency to open once the release cord is free.

A bit like this but not so extreme.
https://www.youtube.com/shorts/QUsiyH9aurU

Just only to avoid the friction or the stone rolling on the release cord as much as possible.

About stones, I'm not in Ibiza. None is rounded here  Grin They have some tendency to travel following strange trajectories and noises.

Bis später!
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Re: Leaping sling pouch
Reply #16 - Apr 2nd, 2024 at 1:57pm
 
Hi Thabaill,
The Magnus effect only applies to rounded projectiles. Your "bad" pebbles roll in the pouch (what is normal) and once released, fly straight swirling on themselves.
More than half of what I throw are bad pebbles.
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Jaegoor
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Re: Leaping sling pouch
Reply #17 - Apr 2nd, 2024 at 4:11pm
 
I know a lot of slingers in Mallorca who shoot really bad stones. And meet them. Amazing right? It's not my thing. I've done it several times too. But I prefer shooting well-shaped projectiles. Whether stone, clay or lead. The principle you are looking for does not exist in this way Sling. The principle is based on a continuous wave movement. It has worked fine for thousands of years. And still works today.
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joe_meadmaker
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Re: Leaping sling pouch
Reply #18 - Apr 2nd, 2024 at 7:22pm
 
I didn't remember that IG had played with that before (meaning the rubber band assisted pouch).

thabaill wrote on Apr 2nd, 2024 at 1:11pm:
Just only to avoid the friction or the stone rolling on the release cord as much as possible.

He mentioned there was a noticeable release to the right, which could be explained by a pouch opening faster.  That should help minimize projectile contact with the pouch and release cord.


You could also try a pouch made of a stiffer material.  Here's some pics of a sling that was part of some recent discussion.  This is the LD-1 from Sarosh.  The pouch is a pretty stiff leather.  The sides actually stick out if a tennis ball is just sitting in it.  But they will come together when the sling is rotated.

I wonder if NOOC has one of these slings.  He sometimes has access to a high speed camera (2000 fps).  I wonder what the release of this pouch would look like.  I'd love to see a high speed of that rubber band pouch release too.
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Sarosh
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Re: Leaping sling pouch
Reply #19 - Apr 3rd, 2024 at 2:57am
 
joe_meadmaker wrote on Apr 2nd, 2024 at 7:22pm:
This is the LD-1 from Sarosh

*LD-2
although the pouch shape is the same, because of the leather lining(inside leather) the characteristics change a little(stiffer, lower friction with tennis ball nap). I have used it with tennis balls and it has a nice feel similar to an LD-1. I haven't used stones because I expect them to roughen the inside. both sides of the pouch are grain side.
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Re: Leaping sling pouch
Reply #20 - Apr 3rd, 2024 at 6:21am
 
https://www.youtube.com/watch?v=BqLaLP19zZ0

A link with a sheperd who used probably "bad pebbles".
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Re: Leaping sling pouch
Reply #21 - Apr 3rd, 2024 at 6:43am
 
I'm agree with Thabaill, the pouch is important with bad pebbles. Look for a solution that minimizes the contact between the stone and the pouch is an idea.
Just my idea but I use pouch made with leather because there are more or less sharp angles and I think that they can crash into a weaving or braiding.

Two difficulties with this ammunition :
1) It is not the fault of the stone if the shot is wrong.  Embarrassed Cry
2) The weights are different and the throw is more difficult.
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thabaill
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Re: Leaping sling pouch
Reply #22 - Apr 3rd, 2024 at 7:20am
 
Hi, everybody. Thank you for you explanations. I have realized my problem aren't the stones. Now I think have been doing something wrong all the time  Embarrassed

I use to fold my slings in the middle. So the stone seats much better.

...
...

Diego Camuñas does it too
https://youtu.be/-ouNR6djZy4?feature=shared&t=251
https://youtu.be/-ouNR6djZy4?feature=shared&t=426

And more people use to do it the same
https://youtu.be/jBcvO7B9pCY?feature=shared&t=51

In fact they seat so great they don't fly just after the shot. They roll on the sling pouch and on the first palm of the release cord just before they fly towards the target. So the stones rotate strongly like a trompo, but the rotation axis usually is perpendicular to the trajectory so rarely I get a rifle spinning. At not long distance I can hit a target easily, but shooting further I only hit a target randomly just after many many shots.

Lluis Pons' sling is not folded in the middle. Just like Sarosh's LD-2 sling pic joe_meadmaker posted.
https://youtu.be/EY7EOspW594?feature=shared&t=14

Greetings!
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« Last Edit: Apr 3rd, 2024 at 3:57pm by thabaill »  
 
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thabaill
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Re: Leaping sling pouch
Reply #23 - Apr 3rd, 2024 at 8:04am
 
I have realized about one detail.

joe_meadmaker wrote on Apr 2nd, 2024 at 7:22pm:
I didn't remember that IG had played with that before (meaning the rubber band assisted pouch).

thabaill wrote on Apr 2nd, 2024 at 1:11pm:
Just only to avoid the friction or the stone rolling on the release cord as much as possible.

He mentioned there was a noticeable release to the right, which could be explained by a pouch opening faster.  That should help minimize projectile contact with the pouch and release cord.


You could also try a pouch made of a stiffer material.  Here's some pics of a sling that was part of some recent discussion.  This is the LD-1 from Sarosh.  The pouch is a pretty stiff leather. The sides actually stick out if a tennis ball is just sitting in it. But they will come together when the sling is rotated.

I wonder if NOOC has one of these slings.  He sometimes has access to a high speed camera (2000 fps).  I wonder what the release of this pouch would look like.  I'd love to see a high speed of that rubber band pouch release too.



Quote:
Et est non simplicis habenae, ut Baliarica aliarumque gentium funda, sed triplex scutale, crebris suturis duratum, ne fluxa habena volutetur in iactu glans, sed librata cum sederit, velut nervo missa excutiatur.


Moreover, the sling is not composed of a single strap, like those of the Baleares and other peoples, but the bullet-carrier is triple, strengthened with numerous seams, that the missile may not fly out at random, from the pliancy of the strap at the moment of discharge,

but, seated firmly while being whirled,
...
...
...
...
......
...


may be shot out as if from a bow-string.
...

It seems you have finally solved the mystery! Wink
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joe_meadmaker
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Re: Leaping sling pouch
Reply #24 - Apr 3rd, 2024 at 10:09am
 
Sarosh wrote on Apr 3rd, 2024 at 2:57am:
*LD-2

Thumbs Up


thabaill wrote on Apr 3rd, 2024 at 7:20am:
Lluis Pons' sling is not folded in the middle. Just like Sarosh's LD-2 sling pic joe_meadmaker posted.

Good observation!
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Jaegoor
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Re: Leaping sling pouch
Reply #25 - Apr 4th, 2024 at 4:24am
 
A creased letter is not recommended. However, there are still a few ideas that can improve opening. A very old idea is to slit the leather several times. Preferably something offset. This creates a net-shaped structure when inserted. Historically, such letters are known from Hedeby, Schleswig and Groß Rathen. But a system I devised also works !
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Re: Leaping sling pouch
Reply #26 - Apr 4th, 2024 at 6:36am
 
I forgot to precise the link was posted by David Morningstar.
https://www.youtube.com/watch?v=BqLaLP19zZ0
Sorry.

Jaegoor wrote on Apr 4th, 2024 at 4:24am:
A very old idea is to slit the leather several times. Preferably something offset. This creates a net-shaped structure when inserted. Historically, such letters are known from Hedeby, Schleswig and Groß Rathen.


Jaeggor, have you some photos ? And what is your system ?

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Re: Leaping sling pouch
Reply #27 - Apr 5th, 2024 at 4:49am
 
This is a friend's sling. The letter has offset slits. The original comes from the Viking settlement of Hedeby. Haithabu. There are many similar ones. It works very well
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Re: Leaping sling pouch
Reply #28 - Apr 5th, 2024 at 5:00am
 
This is from me. I called it Honda popular. The special thing here is the tongue-shaped braiding on both sides. This is not just pure optics. This causes both sides to bend when pulled Letter up. The projectile is released faster. Rolling only occurs at the edges... I use it almost exclusively for very long distances
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« Last Edit: Apr 5th, 2024 at 7:25pm by joe_meadmaker »  

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Re: Leaping sling pouch
Reply #29 - Apr 5th, 2024 at 5:06am
 
Another simplified form of the Honda popular. This has an additional eye in the holding barrel. This allows you to shoot small kestros arrows. Based on an idea by Jesu Vaga.
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« Last Edit: Apr 5th, 2024 at 7:25pm by joe_meadmaker »  

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