Slingshot Bands Demystified!

[Jhfgsjdcd]

Nice poker face

[theolithic71]

Great video. It makes sense since tapered bands have less mass at the pouch and should be able to accelerate faster. It would be interesting to see how much weigh you've reduced by tapering and do some math. A ratio of band length to weight would definately be better with tapered bands.

[gerg1313]

@JoergSprave ,

These videos are spectacular!

Before this video, I was wondering "Why even bother tapering the bands...?"

Love your channel and *especially* the Zombie Hammer Slingshot.

Thanks a million!

-G

[12Chinyere]

Good example for bad english pronunciation...

[JoergSprave]

@12Chinyere Says the man who doesn't have a single video made by himself. Most of my viewers have no problem understanding my English.

[FradisAlexPro]

@JoergSprave Don't worry Joerg. He's just upset because he has a small schnizel.

[thesparitan]

@12Chinyere Go away

[TheLecker1]

@12Chinyere speak better german than he englisch

[Campioni1092]

@12Chinyere "Good example OF bad English pronunciation"

Good try though, maybe next time you won't be a complete fail.

[Za7a7aZ]

I think you are a very creative guy and can see you enjoy doing what you are doing. Do you also have a tutorial about how to attach the thera-band and what to pay attention to when designing your own slingshot? You know...for savety reasons?

[SkidinDingo]

i thought of something wile watching this video. you know how rifles are very accurate by spinning the projectile, well im wondering if there would be some way to get the projectile spinning from a slingshot... maybe a slingshot rifle with a rotating fork or something. like you load it like your other slingshot rifles but after its loaded you rotate the fork around a few times then when its released the bands rotate to line up with the forks making the projectile rotate and maybe more accurate.

[averyaccordion]

@SkidinDingo Its only cause its not round. On round it doesnt matter. On cylindar, if it rotates sideways, it flys off, but on a ball its the same all arund. If aa rocket aims up, it starts going up.

[SkidinDingo]

@averyaccordion yes but even be for the mini ball was invented rifling and the rotation on the round ball improved accuracy

[nabasta]

hey, think you  could do a video of slingshots vs armor? (like chainmail etc)

[thecityalive]

Have you ever tried weight lifting bands? Those are REALLY tough to pull back.

[ChrisDaBossXD]

PLEASE SELL SLING SHOTS TO ME!

[cobeyfield]

hello could u plase make more video they r great

[1brewha]

Screw slingshots... i got spotballs!

[amf521]

ლ(ಠ益ಠლ) Y U NO MAKE TEH SHOOTING TUT VIDEOZ?!

[hessenselidde]

du bist ja deutscher^^

[ZDP189HK]

@broLAXgoalie12 You indeed have a point. However:

The acceleration does not entirely end after the initial kick. There is a very strong impulse at 0-5ms but this only accounts for the first 41m/s; the projectile continues to accelerate, albeit more gradually throughout the contraction, eventually reaching 72m/s.

[broLAXgoalie12]

I'm just spitballing, but doesn't this kind of refute your butterfly method since the acceleration on the larger band set ends much earlier in the ball's trajectory?

[JoergSprave]

@broLAXgoalie12 The accel phase is still a lot longer. And the end speed is faster. The only thing that comes clear is that pulleys work, since they eliminate the dead play.

[Flatband]

Tremendous video guys! It answers a lot of questions that have built up over the years. Not only clearing up the differences in tapering versus non tapering but the camera showed something else quite clearly that has been debated for years. That is("when does the ball leave the pouch"?)/ Many have thought that the ball leaves before getting to the fork opening-camera clearly shows pouch and ball together till right at throat opening-Excellent job Guys!

[Deepsand101]

Do you have a wesbite where you sell slingshots?

[JoergSprave]

@Deepsand101 I have a website, but I don't sell anything. This is just a hobby.

[kleinesmaenchen]

@JoergSprave do you have a regular job or is it your full time hobby ?

[JoergSprave]

@kleinesmaenchen I have a full time job.

[kleinesmaenchen]

@JoergSprave machst du mechanische sachen wobei dir deine beruflichen fähigkeiten beim schleudern machen hilft ??

[JoergSprave]

@kleinesmaenchen Nein, ich habe einen reinen Bürojob.

[i4l3x6]

warst du ma in galileO?

[JoergSprave]

@i4l3x6 Ja, und auch bei Abenteuer Leben (Kabel 1).

[i4l3x6]

@JoergSprave respekt:D

[sohy3010]

what program do you use to edit you videos? thanks

[JoergSprave]

@sohy3010 I use a Casablanca turnkey editing system.

[AidanAdam97]

Thanks alot Destin! This channel and joeandbuzz!

[careyjuggles]

hey so at 3:09 you should show the videos stacked not side by side... that way it would be easier to see the differents. just sayin for future vids. this was really cool though. and im pretty high.

[zen260]

wow,fantastic video joerg,,

[DOUBL3SCOOP]

hey did you make the sling shot at 3:51 if not where can i get me one?

[Dorfjunge]

Thx for this interesting video!

[Shooter4829]

great vid mate.

[EliteAmericans]

it looks like the ripples begin to occur once the band curvature becomes concave. The pouch moves forward of the rubber, and the ripples take hold.

[carambatsr]

Most excellent! Do you buy the bands tapered or do you trim them yourself?

If you cut them yourself, then how do you do it evenly and consistently? Latex isn't difficult to cut, but it does want to stretch and creep while you are cutting it.

[JoergSprave]

@carambatsr Why don't you download my band manual from the link in the text description? It's free.

[VeronicasMidget]

@JoergSprave Sir, I bow to your genius. But what I want to know is does quicker acceleration mean more power? Or does the extra tension on a thicker band mean higher generated power?

Could we see further tests on some jelly :)

[Hedning1390]

@VeronicasMidget p=mv

[MKF30]

@JoergSprave Hey dude, where can you buy tapered bands anyway? Cool video!

[LordRobere]

Hooray for Joerg! Congratulation to you for this honor. You have certainly earned it. I am proud to be a long-time fan and glad to see this day. Good on you, Joerg!

Leaving this post here as unable to post on The Sling-shot Channel for some error of sorts. --- for those wondering what this is about, Joerg is now a 'partner'.

[SaiiKOsThoughts]

'This video is aimed at slingshot enthusiasts only!'

DUCK.

[Punishering2U]

I wish you include the Handheld Slingshot Ballista in the studies. That's one of my favorite in your collection.

[fomocowboy]

280 likes and not a SINGLE dislike. Thats gotta be some kind of record!

Great video JoergSprave!

[HippelU76]

Schönes Vid, solche Studien sind sehr willkommen. Der hat wirklich ne gute Kamera ;)

[TobseB79]

Super Video, sehr schön gemacht!

Vorallem das mann die beiden Videos nebeneinander sieht ist sehr gut! Da ist der Unterschied deutlich zu sehen.

[casarole45]

ace vid thanks!

[romanianshadow]

I think the explanation is actually behind the weight of the rubber itself.

The rubber near the fork needs to also move the rest of the rubber, while the rubber near the pouch needs only move the pouch. Thus, it is normal that the rubber near the fork needs to be stronger/thicker in order to contract at the same speed. Rubber is a relatively heavy material so this obviously matters. This is why tapered bands give more performance. :-)

[GoliathGunner]

nice

[dadsythe2]

Sorry if this is the wrong place to say this, but do you patent any of your slingshots?

[anim8ordude]

Lots of colour fringing on those slow motion shots! Get Destin to fix his lens :P Also, did you use Vernier LoggerPro to analyze the footage?

[VertigaDesignMEDIA]

wow. tapered. great vid as usual joerg.

[MrBudwv]

Thanks for doing this. Looks like tapered bands rule.

[JUSTACHIPN]

Very interesting. Thick band=heavy ball n toque. Like my truck, it don't matter how much weight I'm carrying it gets same gas millage. Thin band= light ball n speed. Like my camaro, it's faster with lass gas in the tank. Think about it :)

[wufwufwufwuf]

nice one

[CaptainFur]

Well that's one way to win an argument; "Which Band Is Faster?"

[45bloo]

Love your videos. Always fun to watch some one that enjoys what they do. I've learned alot. I have to ask though, what's with nun? Is she giving you the evil eye?

[JJD54540]

VELOCITY!!!!!!!!!!!!!!!!!!!!!!­!!!!!!!!!!!!!!!!

[thebowlzack]

thats interesting. i have never made a slingshot, but i have a trumark. i have bought 2 different types of bands, one was thicker and looked stronger, and the other was tapered. with my tapered one(much thinner), i could shoot through like 2 cans full of water, where my thick bands can go through a single side of 1 can(yeah its a weenie little slingshot that ive got.)

[Aznfootball7]

I thought he was "ZDP-189" Like the steel @.@

[ZDP189HK]

@Aznfootball7 'ard as steel balls. I was a knifemaker.

[Aznfootball7]

@ZDP189HK Yea yea, Joerg said "ZDK-189" and i remember reading your blog on SlingshotForum about the bands and such.

[DJBludLust]

This was fantastically informative, I had no idea tapered bands would make such a huge difference. Very nice video.

[LordRobere]

Oh, I forgot to ask one last question: From your calculator, should not one be able to determine both meters per second and Joules also?

[JoergSprave]

@LordRobere That would mean that the outside temperature and the release style (how long you aim before you shoot) would also have to be entered. Plus I would have to do millions of chrony tests.

[ViVaLaPRINCE]

cool accent, where are you from ?

[LordRobere]

Joerg, one thing I've meant to ask for some time: How did you arrive at the figures for band width in your calculator? How did you determine the band width for particular weights of the shot? I can understand length, but not how you determined both fork width and pouch width. I must admit, I do follow your guidelines, but I wonder how they originated and if I should even bother to experiment with them.

[JoergSprave]

@LordRobere These dimensions are from experience. 

[LordRobere]

@JoergSprave Since you are the most experienced shooter I know and I trust your inventive and smart mind, I am comfortable with your figures and how you arrived at them. Now the only thing I wonder about is if multiple bands would outperform a single band if the total width of the multiple bands collectively match the width of the single band. Using your ratio to measure the pouch and fork difference, multiple bands with very narrow tapered pouch widths might be faster, if strong enough?

[pyrophiloffthapill]

Where do you get your bands? And do they ship to the us? Also, do they come pre-cut. What is the best kind?

[JoergSprave]

@pyrophiloffthapill Just download my manual.

[Jumpingflashlight]

Oh, also, making the whole thing the same size as the tapered end (i.e. smaller bands but same length) wouldn't work because the draw length would be too great to use the additional force.

(Captain Obvious signing out!)

[Jumpingflashlight]

The bands act as "springs."

Springs apply a force that increases LINEARLY with the distance with with it is pulled.

Therefore, I hypothesize that the tapered bands work better because the tapered bands are allowed to stretch further on the part of the band that most affects the shot and that this extra stretching allows for more force than could be achieved by additional rubber on a band of equal length.

[kumquatsta]

how to attach bands to sling shot? make a video how to

[JoergSprave]

@kumquatsta Just download my band manual from the link in the text description.

[kumquatsta]

@JoergSprave i will, but nothing beats seeing it done by a master. please do the video.

[suldubulduu]

Airsoft glasses in the intro? :) Do you play airsoft?

[JoergSprave]

@suldubulduu No. I shoot steel, and hard, not soft.

[malacporkolt]

I think the tapered bands works like recurve bows in archery...it is a very informative video again with the slow motion captures :)

[PimpinPoptart06]

Joerge, how did you calculate the m/s for the two vidoes?

[mrrsmurf]

@PimpinPoptart06 i think he knew how long the draw lenght was, and he could time it by watching the slow motion video

[JoergSprave]

@mrrsmurf Yes, I simply measured it on my 50 inch Plasma screen.

[JoergSprave]

@PimpinPoptart06 I know the draw length, and measured the difference between the frames on my Plasma.

[vv2304]

Maybe you plan to test your slingshot cannon with tapered bands and I am also wondering if adding some sort of roller system to remove the dead play in the band would increase the velocity of the ball at some extent?

[JoergSprave]

@vv2304 Tapered bands for the cannon would be expensive and also hard to do (the bands are long). Instead of rollers, we can simply increase the barrel length, which may happen.

[vulcanus30]

less rubber, more power?

[JoergSprave]

@vulcanus30 The amount of rubber is the same, it is just cut differently.

[InTheSticks0001]

The marks on the bands do a good job demonstrating the difference.

[ivar197]

maybe tapered faster because the wide part of band stores energy.. so tapered slingshot would be faster nomatter where the wider area is - ppouch, fork, or mid area

[zacharylisle]

wow 216 fps is freaking fast for a device that can be "Invisible" meaning it can be on a airplane i guess security can never be so secure in public for a long time.

[JoergSprave]

@zacharylisle These bands are nowhere near the top bands we use, those are target bands for Tobias (and me, when my hand is OK again).

[MrBob1423]

lol congrats on no dislikes 

[Marcan333]

Another well thought out, well presented video. Well done and thank you.

[LucianLycan1313]

Mr Sprave, will you be posting a 'how too' on the pump action slingshot?...

[JoergSprave]

@LucianLycan1313 Maybe, when I have perfectionized it.

[IGallagherA7X]

im not a slingshot enthusiest. I just subbed cause your a bad ass.

[61diemai]

Wirklich sehr interessant , ...vielen Dank für's Posten !

[MrHappyStacker]

Jörg, do you have any kids ?

[JoergSprave]

@MrHappyStacker No, but my niece lives with us.

[theheadshot45]

@JoergSprave Is your Neice into catapults?

[unexceptionalrebel]

Is there a way to remove the ripples? Maybe if the forks become wider at the same moment that the ripples start it could provide more tension and remove the ripples. If there was a handle grip that you could squeeze at the exact right moment that would somehow widen the forks.

[JoergSprave]

@unexceptionalrebel Don't forget we are talking milliseconds. Hard to squeeze right on time.

[JimmyFatz]

@unexceptionalrebel i think the only way to get rid of the ripples would be to remove any slack from the bands. that way they are always in tension, even when youre not pulling on them.

[TheBoyFromNorfolk]

I come at this as a chemist. I wonder what the chemical differences in the rubber are, and how they contribute? Is there specialist designed slingshot rubber?

[JoergSprave]

@TheBoyFromNorfolk No, but from all of the rubber that is available, only Thera Band (gymnastics bands) and natural gum rubber (industrial) work really well. All other types are kind of lame in comparison.

[ZDP189HK]

@TheBoyFromNorfolk I will shortly write a detailed blog entry on latex and rubber fillers. Natural rubber latex has the highest resilience and elongation is fastest, but other formulations come close and offer superior abrasion, UV and chemical resistance.

[slingshotdude]

sehr schöne aufnahmen!!!

[agun17]

I'm not a slingshot enthusiast. I don't want Joerg aiming anything at me because I know it will be painful.

[gimiesome]

Thanks Joerge, That really was quite interesting.

[am17g08]

Very nice. I love a good graph.

[lardarse160]

Great video Joerg thanks for sharing very interesting

[Wiegieboard]

Excellent video big man. Loving the technology

[bryanor94]

hmm insteresting isn't it!

[MrToshTogo]

Good video showing the superior properties of tapered bands. I would enjoy more videos of the mechanics of the rubber rebounding and hope you post more in the future should the opportunity arise. There is a lot I don't know yet and I continue to learn however I can. Perhaps a chrony will be under my Christmas tree to experiment more and learn more. Thank you very much for this video. Get well soon and all the best to you and yours.

[TheAirsoftking14]

lol look at the tapered but look at his pants 3:10

[xBrAnDiAnOx]

@TheAirsoftking14 LOL you have a seriously sick mind to notice that

[TheAirsoftking14]

@xBrAnDiAnOx

Thank's

[nws513]

do you purchase your bands tapered or cut them yourself?

[15951Thomas15951]

was hoping too se a flip style in slomo

[OLDMANSBALLBAG]

great video joerg !!! thanks for taking the time to make it - john

[DRUGGANAUTDUBSTEP]

I'm not a slingshot enthusiast, but I still found this interesting.

[MrNevergreen]

I swear there will have vids of the slingshot tournament

[BespokeGroupUK]

Brilliant ! Hope your hand gets better soon after the zombie apocalypse shooting :)

[michael1234252]

nice intro

[eddrocks2]

are you going to record anything at the tournament?

[joshyboy9413]

it would be interesting to see a slingshot with rollers in slow-mo because i think they would eliminate the ripples and keep the ball accelerating longer

[EpicGolfTime]

185th viewer club

[MrBillTroop73]

Now see, this should have been the "Smarter Everyday" episode! LOL

[qurt365]

that´s nice! i´ve wondered why you make tapered instead of untapered

[SkeletonPissing]

I HAVE GRRRRRRR WHEN HE SAY MILIMITER

[SpaceMatata]

Was für gummibänder benutzten sie ??

[Homer3864]

Könntest du die Übersetzung einschalten?

Mein englisch ist leider nicht soo gut..

Das strengt an...

[kallenmaurer]

Hey joerge, hows the hand doing?

[JoergSprave]

@kallenmaurer Healing OK. Slingshot tournament coming up next week, gotta be fit by then.

[qurt365]

@JoergSprave are you going to record and putt it up here? would like to see :D

[blouistu101]

@JoergSprave Will there be footage from the competition?

[JoergSprave]

@blouistu101 Probably.

[hellwatcher999]

@JoergSprave im sure you will have no problem taking first even if it's not healed completely

[JoergSprave]

@hellwatcher999 Actually, Tobias and Wladimir will both be there, to fantastic shooters. I am hoping for a third place.

[Thespartan117992]

@JoergSprave where are the tournaments?

[spikwizflo]

LAST FIRST



[JoergSprave]

@spikwizflo Ha! Good one. 

[spikwizflo]

@JoergSprave HAHA Merci Joerg

[Gabberz123]

@spikwizflo

FIRST!

sorry, but you asked for it

[spikwizflo]

@Gabberz123 COUNTER-FIRST!

..sry

[Gabberz123]

@spikwizflo

Anit Counter-First!

[Gabberz123]

@spikwizflo

Anti counter-first*

[Gabberz123]

This was really cool :) thank you

[SkeletonPissing]

I HAVE GRRRRRR WHEN HE SAYS TUWNTY FIVE MILIMITERRRR GRRRRRRRRRRRRRRRRR

[SkeletonPissing]

3ª

[fwilliams1992]

first



[1miggey]

yeah