Slinging.org Forum - Roboslinger!

NooneOfConsequence

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Re: Roboslinger!
Reply #60 - Apr 28^th, 2018 at 2:00pm

Morphy wrote on Apr 28^th, 2018 at 10:04am:

I agree, that's amazing. Is it possible to be able to see the amount of tension on the cords at any given moment? I'm guessing that's a no, but that would be really interesting to know.

I have a very accurate weight for the sling and pouch. I t would be possible to calculate the tension on both strings since we know both the mass and acceleration, but we wouldn’t know if the load is distributed unevenly between them.

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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NooneOfConsequence

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Re: Roboslinger!
Reply #61 - May 15^th, 2018 at 8:31pm

@all:
I know I’ve been quiet lately on Roboslinger, but I should have a few things to show off again soon. Since the move to maths, I tested the roboslinger.org and the .com links, and they still point to the right place.

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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woodssj

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Re: Roboslinger!
Reply #62 - May 16^th, 2018 at 12:22am

Has Roboslinger been issued an Individual Score Book For The Sling?

Have they been keeping detailed records of their throws?

Can we use a similar approach to model ammunition?

Can we put it all together and model variance, possible/probable group-sizes (Cone of Fire) and so forth?

I'm a Luddite, so I have no idea how hard it would be to program that model. Please educate this ignoramus....

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NooneOfConsequence

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Re: Roboslinger!
Reply #63 - May 16^th, 2018 at 12:48am

At this point, Roboslinger is just a concept waiting to be designed and built, but the whole idea is that it should be a data-generating beast that gives us high-quality results by taking the human out of the loop and letting us characterize the sling or the ammo in a repeatable way that is similar-ish to how a human would actually throw.

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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NooneOfConsequence

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Re: Roboslinger!
Reply #64 - May 18^th, 2018 at 5:41pm

Posting this raw mocap data for Montanan Slinger... anyone else is also welcome to use these files for personal use, but please talk to me before using it for any commercial use. As a courtesy, I mostly just want to know who is using the data and what for, but if you animate a slinging character in a videogame and make millions off of my mocap data, you might at least owe me lunch Grin

These files can be viewed using a free program called Mokka:
https://biomechanical-toolkit.github.io/mokka/index.html

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Figure-8.zip (3841 KB | 7 )

Overhand.zip (3734 KB | 6 )

Sidearm.zip (3903 KB | 4 )

Underhand.zip (3804 KB | 3 )

“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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Teg Interfector Viris Spurii Offline Posts: 1115 Central Europe Gender:	Re: Roboslinger! Reply #65 - May 28^th, 2018 at 6:53am For those with enough money: https://www.youtube.com/watch?v=LAtdsDTt__s Just throwing it out there .
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NooneOfConsequence

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Re: Roboslinger!
Reply #66 - May 28^th, 2018 at 8:54am

Nice! It doesn’t quite meet the criteria, but that does look like fun!

It’d be even better if it threw more than 100’... but to be fair, I can’t quite throw a bowling ball that far when I go slinging Cheesy

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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NooneOfConsequence

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Re: Roboslinger!
Reply #67 - May 28^th, 2018 at 9:05am

FYI, I bought a high speed camera this week!
Well... sort of high speed. It’ll do very low-res at 1000fps, but it was the best $130 used Casio high speed camera EBay had to offer!

It should come in handy for studying sling mechanics anyway. I will post some vids after it arrives.

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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NooneOfConsequence

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Re: Roboslinger
Reply #68 - Nov 17^th, 2019 at 9:49am

https://www.youtube.com/watch?v=ND8qfS8gkDQ

https://www.youtube.com/watch?v=-gn2RGPqe_A

https://www.youtube.com/watch?v=KpFTyE-wiNo

https://www.youtube.com/watch?v=mXhLdz-Qmsk

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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Sarosh

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Re: Roboslinger!
Reply #69 - Nov 17^th, 2019 at 12:35pm

NooneOfConsequence wrote on Nov 17^th, 2019 at 9:49am:

https://www.youtube.com/watch?v=ND8qfS8gkDQ

https://www.youtube.com/watch?v=-gn2RGPqe_A

https://www.youtube.com/watch?v=KpFTyE-wiNo

https://www.youtube.com/watch?v=mXhLdz-Qmsk

great videos I think I've shared them already somewhere in the forum.
what I've been wondering is : if we got a roboslinger or a trebuchet or a program showing us the optimal trajectory of the projectile before release , would we be able to transform those ideas or images into movement? would those information be of any use to us?
e.g. what did we learn from the above videos that will improve our slinging technique?

video analysis of oneself is much more useful.

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Curious Aardvark past-administrator Offline Taller than the average Dwarf Posts: 13965 Midlands England Gender:	Re: Roboslinger! Reply #70 - Nov 20^th, 2019 at 10:30am there is such a program on here somewhere - one of matthias's little works of genius. One of these days I need to go through the backup and find all this stuff.
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NooneOfConsequence

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Re: Roboslinger!
Reply #71 - Nov 20^th, 2019 at 6:04pm

Sarosh wrote on Nov 17^th, 2019 at 12:35pm:

NooneOfConsequence wrote on Nov 17^th, 2019 at 9:49am:

https://www.youtube.com/watch?v=ND8qfS8gkDQ

https://www.youtube.com/watch?v=-gn2RGPqe_A

https://www.youtube.com/watch?v=KpFTyE-wiNo

https://www.youtube.com/watch?v=mXhLdz-Qmsk

great videos I think I've shared them already somewhere in the forum.
what I've been wondering is : if we got a roboslinger or a trebuchet or a program showing us the optimal trajectory of the projectile before release , would we be able to transform those ideas or images into movement? would those information be of any use to us?
e.g. what did we learn from the above videos that will improve our slinging technique?

video analysis of oneself is much more useful.

There are a few things I want to use a treb for. One is sling pouch studies. If you have a consistent throw and the same ammo, you can analyze the difference in release timing from different pouch shapes.

You can also study ammo ballistics by using a the same pouch and varying the ammo geometry.

There’s two examples of how a treb can contribute to slinging. You can’t get that information from video analysis of people except in a statistical way.

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“My final hour is at hand. We face an enemy more numerous and cunning than the world has yet seen. Remember your training, and do not fear the hordes of Judas. I, without sin, shall cast the first stone. That will be your sign to attack! But you shall not fight this unholy enemy with stones. No! RAZOR GLANDES! Aim for the eyes! May the Lord have mercy, for we shall show none!“ -Jesus the Noodler

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Sarosh

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Re: Roboslinger!
Reply #72 - Nov 21^st, 2019 at 2:42am

NooneOfConsequence wrote on Nov 20^th, 2019 at 6:04pm:

There are a few things I want to use a treb for. One is sling pouch studies. If you have a consistent throw and the same ammo, you can analyze the difference in release timing from different pouch shapes.

You can also study ammo ballistics by using a the same pouch and varying the ammo geometry.

There’s two examples of how a treb can contribute to slinging. You can’t get that information from video analysis of people except in a statistical way.

ah ok I was thinking about the internal ballistics of slinging , "how can we develop our technique by watching a trebuchet?"

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