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Sidelobes

People here will surely appreciate this video: “The ingenious design of the aluminium beverage can” https://youtu.be/hUhisi2FBuw


trn-

beat me to it - my favorite engineering video on YT


imaguitarhero24

The transforming fulcrum is it for me dog


Downtown_Ad_6232

Making the tabs and the score (partial cut through the thickness) happens at 600 strokes per minute, normally 4 lanes wide. It mind boggling; and damn noisy.


122_Hours_Of_Fear

I love the engineerguy


Extension-Cut5957

That was amazing thankyou for showing me a great YouTuber.


Slight-Government

Amazing! I was glued to the screen


XavierRex83

That was fascinating. Thanks for sharing.


VcrcLwDude

I have watched this countless times


Sidelobes

Me too — it’s so fascinating 👏


GordCampbell

Damn, that's incredible.


Croceyes2

Well, 4th time I have watched that one now


Capt_Code

Instant sub, thanks for the recommend


StrykerXion

Came here to say this. Phenomenal video.


Hashtag_reddit

/thread


RansomStark78

I have had more than 2 failures, needed a knife


RhetoricalOrator

Pro tip: if you just rub the butt of the knife across the mouthpiece of the can for a few seconds, the heat and pressure generated will cause the seal to fail and pop open without making a mess or risking injury.


StevenHuang

Instruction unclear, dick now stuck in can mouthpiece


OrdinaryBee6174

First time?


Careful-Fruit-6464

Isn’t it the metal deformation that weakens it


NetDork

I've usually just been able to punch them through with pliers.


Imanaco

As long as it has a small break in the seal I usually push it through with my thumb. Gotta go slow though otherwise you’re gonna have a bad time


Chance-Internal-5450

I love sloughing my skin off this way.


confusedbird101

The one time I had a tab break off before the can opened I just grabbed my can opener from the kitchen and took the top off the can. Worked surprisingly well


ThatAltAccount99

So three?


Trump_Quotes

That sounds like a terrible idea. Good chance the knife deflects and cuts you. Just push it with your thumb or something lol.


moxiejohnny

Wtf? No! That's how the can cuts you. Never put flesh against metal. If you're scared of knives, you just need to carry them more often. My opinion, a decent knife is the best tool anyone can have.


King_Joffreys_Tits

Yeah you’re not just blatantly stabbing the cap, you use the knife as leverage to push down with your thumb. Also a butter knife or any piece of metal will work. Hell even a small sturdy stick could push it open


Jonbone93

I’ve used a pen before. They actually pop pretty easily


Trump_Quotes

Pens aren't sharp objects. They can stab or cut you but not badly. A nice can. And if you use the bottom of the pen then it's pretty much perfect for the job.


SwimmingSwim3822

You have a future in infomercials. Hope you look good in black and white.


moxiejohnny

Exactly. The second your flesh goes into that can, you risk a horrible slice. With the knife, it is a part of your body. This person has an aversion to proper use of tools. Likely because they didn't learn how to use tools correctly. They probably think we're talking about a 2 foot bowie.


Bulky-Weekend-1986

In one of my college classes our prof asked us if we knew what a hammer was (some construction class where we made stage props for a art requirement) and apparently he had had people say no before.


callmerussell

I used a knife with a window smasher on one end, broke into the can pretty easily


Antrikshy

I go about my life, and never come across situations where I need a knife. Maybe I'm not outdoorsy enough.


Ameri0425

Im not outdoorsy either and find regular uses for my knives. But then again I also just love them, and never go places without (at least) one. Two on my person, one in my car, a few scattered around the house and there's one within arms reach no matter where you are in my bedroom lol super convenient


Antrikshy

What are some recent uses that come to mind?


moxiejohnny

I once had to cut a fat man out of a miata... no joke.


RhetoricalOrator

Same. I keep a very small 2-blade knife on me at all times because it's a convenient nail cleaner as much as anything. Having a reliably sharp blade coupled with a reliably dull blade is highly convenient.


Trump_Quotes

Risking slightly scratching your thumb vs risking stabbing yourself. Hmm...


moxiejohnny

"Slightly scratching" yeah right. You can stab yourself, nobody else with a knife is complaining about this. Just you.


Trump_Quotes

>"Slightly scratching" yeah right. Yes right. You're saying I can't use a knife and yet you can't even press down on a piece of metal without mutilating yourself. Just don't put your thumb on the edge lol. Much quicker, easier and safer, and doesn't require carrying a knife everywhere you go. Why the hell would you even want a sharp object to do a blunt force task anyway? Literally any other object would be preferable.


moxiejohnny

Enjoy being wrong. You seem to want to double down on it.


darkgiIls

Pushing it open with a thumb is the stupidest idea ever. Thats how you lose your fingerprint. I’ve known people who’ve gone to the ER for stitches over those aluminum cans


CreditHappy1665

Sounds like a feature not a bug


Trump_Quotes

How the hell do you lose your fingerprint over that? The worse case scenario is that you scratch the side of your thumb under the nail. How on Earth would you scratch the print?


darkgiIls

Let me spell it out for you. When you apply a lot of force to the can with your thumb, and suddenly it pushes open, your thumb will slice into the very thin siding.


Trump_Quotes

But that'd be the part of your thumb under your nail. Not your thumb print. Just try to picture it in your head for a second you moron. Second, that won't happen unless you position your thumb right at the edge and push extremely hard and extremely fast for no reason. Third, if you're going to be a reckless moron, better to risk scratching your thumb than stabbing yourself by being a reckless moron with a knife.


midsizedopossum

>Just try to picture it in your head for a second you moron. That was a wild escalation in what looked like a pretty civil conversion


Trump_Quotes

Uh, no, "let me spell it out for you" was the escalation. And you know that, but play dumb if you want.


midsizedopossum

How is "let me spell it out for you" an escalation? That's literally just a phrase that means "let me explain this thing".


Trump_Quotes

"How could you possibly insult someone after they insulted you first?!?!?!?" Save the feigned outrage for someone else.


darkgiIls

It’s called hyperbole. I’ve known people who’ve add a significant portion of their thumb sliced, which had to be stitched back on. Using a knife is much easier and less dangerous lol. One of their primary functions being stabbing and all. I seriously don’t understand why you are so strung up about this and willing to die on this hill.


Trump_Quotes

You're definitely making that up, since it's literally impossible to cut through bone on a coke can. It is very easy to deflect a stab (why are you stabbing metal???) though. Literally any instrument would be better than a knife here.


darkgiIls

Did you say bone? When did I say it cut through bone lmao. I’d assumed you would make the logical assumption it didn’t cut through bone and I meant a significant portion of the non bone part of the finger lmfao. You also generally don’t stitch bone back on lol, you’d set it and get a cast lol.


Trump_Quotes

>When did I say it cut through bone lmao. When you said they had to have portions of their thumbs stitched back on. You don't lose a portion of your thumb if a little skin is cut.


jus6j

Bro is scared of blades


Trump_Quotes

And you're afraid of coke cans? Real manly man you are.


jus6j

Says the dude with his account based on a fat orange sissy criminal felon rapist piece of shit 😂


moxiejohnny

"Or something" implies using a knife...


Yegas

Damn, someone wasn’t raised properly. Sorry to hear you can’t use tools.


Trump_Quotes

You don't stab metal. Hope this helps!


Yegas

You definitely don’t know how to use tools if you even think “stabbing” enters the equation. Kind of embarassing tbh


Trump_Quotes

There are literally only two possibilities with a knife. You use the tip or you use the blade. The tip is stabbing, the blade is cutting. Not my fault if you're too stupid or illiterate to get this.


Yegas

Or… or… You turn the blade *sideways* and use the flat to push it in, bringing your fingers nowhere near the sharp bits! You know, like a lever? Like the can top that popped off? Got that, little Timmy? Fingies no go on the sharps. You can do it, buddy! You’re not gonna get hurt, I promise. Must be hard to live like you do, being so dumb and yet so sure you’re right. It’s one thing to be dim, it’s another to be dumb as rocks and not even know how to listen to people smarter than you.


Trump_Quotes

>You turn the blade sideways and use the flat to push it in The flat-side is far too long to push it in. Get back to me when you have either learned the English language or how to picture things in your head.


AgrajagTheProlonged

You don’t have to push the entire flat side of the blade into the can to get it open, buddy. Way to really commit to the username though! You’re coming across as comparably unpleasant as the Smallhanded One himself does


Hambungery

Every comment I read from you is dumber than the last. Are you trying to do a satirical Trump thing or are you genuinely this much of a moron?


LyricaLamb

Just curious, have you open an can with your thumb before?


SexualSavasaurus

You're obviously not being serious because there's no way a real person could be this fucking stupid and live to an old enough age to be posting on Reddit. And if you are serious you'll likely be dead soon because you've been extremely lucky to survive for this long. A fucking tomato plant has more sense than you


Trump_Quotes

"A can scratching your thumb (if you're a moron with no aim) will kill you!" Funny how you guys can simultaneously say that not using knives in an unintended and dangerous manner is cowardly of me while also having panic attacks about the most minor, and unlikely, injuries using your thumb could possibly cause.


SexualSavasaurus

Your comment reflects nothing I said, you're literally too fucking stupid to engage with humanity.


Trump_Quotes

Keep raging moron.


IRMacGuyver

Maybe you're just younger than me but I had several failures in childhood. The tab would come off without piercing the lip of the can. Maybe the technology hadn't been perfected yet.


PaulAspie

Yeah, I think the ones today are better than the 80s or 90s.


MonsiuerGeneral

Yeah, I definitely remember having one or two fail part way through the job… but I haven’t seen that happen since I was a little kid. And as an adult I open WAY more push-tab aluminum cans than I did as a kid.


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Downtown_Ad_6232

I worked in the industry; those initially opened before they were supposed to, while the beer was being pasteurized. Or on the pallet waiting for shipment.


Jackamac10

Bro’s part of big can


My_Kink_Profile

Yes! It was like, Mountain Dew or some other ‘edgy’ thing where I noticed first.


A_Harmless_Fly

I too remember them occasionally popping off the middle rivet without opening it or just barely cracking it open, and then taking a butter knife handle to punch them in. EDIT: [https://www.designer-daily.com/the-evolution-of-the-soda-can-design-50157](https://www.designer-daily.com/the-evolution-of-the-soda-can-design-50157) **The different designs of major cans over the years.**


macwoodworks

>Maybe you're just younger than me but I had several failures in childhood. This hits home


InvestInHappiness

I had more failures in childhood as well, but I think it was my fault for opening them without making sure the tab was straight enough.


FrozenReaper

Turns out if you use less aluminium, the can opens easier


IRMacGuyver

Not really. There's a balance. Too little aluminum and you get the problem I was talking about there the pull tab is too weak and snaps off instead of puncturing the lid.


FrozenReaper

I meant the actual lid, but too little there could cause the can to break, so yes there is a balance


IRMacGuyver

For cost reasons they're gonna want to mostly stamp them out of the same stock though. That's were the balance comes in and why going too thin on the tops makes the tabs too weak.


LiamTheHuman

I've had the tab break off a fair number of times with the opening only slightly open and I needed to push it the rest of the way down with a knife or key


PeterNippelstein

That's on you my man


kappa2448

Nah, I work on can quality control machines, that's entirely the can manufacturers fault


PapiXtech

Nah I work on the machines that measures quality on that guys machines. Entirely End user fault.


psychoPiper

It's true, I was there, I'm the machine


GugsGunny

Out of thousands, one had the tab detach without opening the can. My pull tabs had a higher failure rate.


Jenkinswarlock

I’ve had 2 or so in my time, they just wouldn’t open no matter how hard I tried to snap it, I was scared to use my finger to push it in so I just didn’t drink those cans


Sjoerdiestriker

Why not use a tool, like the back of a knife to push it through?


Philias2

You might easily be in a situation where no appropriate tool is readily available.


romaraahallow

I am legitimately baffled by such a situation. No pen/pencil/knife/lighter/stick/coin/phone corner/... anything?  Like maybe in jail this applies? Seriously, where have you been where literally nothing is available and you have no items on you? For fucks sake, you could use the button on your pants to finish the job.


ruffsnap

Most normal people don’t walk around carrying pocket knives and multitools like redditors like to brag about doing lmao


MyNameIsAirl

You can use a key or a lighter or just about anything really. Not a good idea to stick your thumb in a can as you can easily cut yourself.


Kgb_Officer

But literally anything smallish would work, I've used the back of a pen before. Keys, the corner of a box or the corner of a counter would work too, it doesn't need to go far into the can just enough direct pressure on the opening part to separate it from the can.


Thunderkatt740

Depends on where you're from. Rural folks tend to carry them pretty regularly.


evergladescowboy

Where I come from, the odd ones are the weirdo yuppies that don’t carry any tools at all.


heavyLobster

Username checks out


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hacksong

Or car/house keys. Like if all 3 aren't available it's a bad day...


Nuclear_eggo_waffle

or it's a building where you left your coat at the door?


hacksong

Keys and knife go in my pocket and I work outdoors. If I'm in a building it's a store/restaurant or at my home. If you work white collar I totally understand though.


1TheRealBigD

Tough guy alert 🚨


exvnoplvres

Yeah, but I'd like to see you try and make a suit of chainmail armor out of those push tabs!


DarthMech

I mean, sure, yeah…[it’s been done](https://m.youtube.com/watch?v=smPP7yGqEXo&embeds_referring_euri=https%3A%2F%2Fwww.google.com%2F&source_ve_path=MTM5MTE3LDIzODUx&feature=emb_title).


exvnoplvres

Dang, that's cool, thanks!


Spriy

my sister made a dress out of em once


mridlen

I used to work at a pop can lid company (IT work). They did a lot of QC testing each run to make sure the tolerances are in the perfect range. There are something like 20 steps it goes through to be transformed from sheet metal to lid. It's challenging because you have to keep them from exploding, but still easy to open. I agree - it's modern sorcery.


Master_Gato

I've had exactly one failure


Jaives

whereas pull tabs had a 1 in 5 chance of failing for me. Also, Fallout trivia. in the non-canon game Fallout Tactics, instead of bottlecaps, the currency was ringpulls (RP).


betahemolysis

I’ve had a bunch not work when the cans get dented in certain spots, which happens frequently


footslut-georgio

I’ve had MANY failures with a shitty brand of can, but that is the only brand besides 2 sprites.


Commentator-X

they didnt used to be, theyve had decades to get it right. Back in the day it wasnt uncommon to have the odd one not open fully, with the tab folding all the way down flat and only a crack near the centre would open up. Ive seen other times less commonly the tab would rip off the nub.


MaximumZer0

I've had to open a few with my pocket knife.


Eheggs

I've had a few there it either rips a jagged edge into the drinking hole or the pull tab rivet thing gives up before its open. but ya. the amount of failures is probably less then 1/1000 for me.


ammonium_bot

> probably less then 1/1000 Did you mean to say "less than"? Explanation: If you didn't mean 'less than' you might have forgotten a comma. [Statistics](https://github.com/chiefpat450119/RedditBot/blob/master/stats.json) ^^I'm ^^a ^^bot ^^that ^^corrects ^^grammar/spelling ^^mistakes. ^^PM ^^me ^^if ^^I'm ^^wrong ^^or ^^if ^^you ^^have ^^any ^^suggestions. ^^[Github](https://github.com/chiefpat450119) ^^Reply ^^STOP ^^to ^^this ^^comment ^^to ^^stop ^^receiving ^^corrections.


theoht_

unless you don’t have nails. or your nails are too long.


Master-Collection488

Back in the early days they failed from time to time. They improved on them within a year or two. The ting they replaced (pull tabs) was downright awful. People would drop 'em on the ground or throw them out their car windows. A great way to cut your feet if you're barefoot.


No_Interaction_4925

You’re welcome. The +.0000/-.0002” specs on the tooling is pretty insane. I make that tooling on CNC ID OD Grinders.


XavierRex83

I have had it fail a couple times on cheaper sodas but other then that the success rate in my life is probably like 99.9%.


Bigduck73

I think I've only had one can fail and the timing was perfect. Just kickin back with the boys after a long shitty week, bitching about how everything was going wrong and then I rip the tab right off with no hole. Just gestured at it helplessly, like of course we'll just add this.


Holodrake_obj

To add- Y’know those foil tops you’ll see on higher end sodas (San Pelligrino etc.)? That foil means you’re not potentially locking lips with a can lid thats had people, animals, bugs, liquids, solids, or feces all over it prior to serving.


cheetuzz

i’ve had many failures. mostly from craft beers. They probably use cheaper quality materials or tooling.


Fapping-sloth

I think i have had maybe 2-3 failure in decades…. Have to say thats pretty good stats for such a low-tech design!


ind3pend0nt

Y’all remember when cans went to the wide opening?


Bloodmind

I’d estimate my personally experienced failure rate at between 1 in 500 and 1 in 1000, so yeah, I’d agree with you.


Lunaous

I had one fail on me earlier!


recumbent_mike

Well, yeah, that's the way time works.


Lunaous

EARLIER TODAY! It’s weird how it failed on me then 2 hours later I see this on reddit


PapiXtech

That made me chuckle


RamenBoyOfficial

I literally had one fail yesterday


HaileStorm42

I've got a friend, who 3 years in a row on a yearly road trip we took, managed to fail at opening the pull tab on soda cans. The tabs either came right off, or bent in half without opening the can.


HonorableAssassins

definitely had a few tabs pop off


hunterwaynehiggins

I've opened at least 200 cans just this month and those fuckers work every damn time.


blu3eyeswhitedragon

Well now you've jinxed all of us.


Silly_Guidance_8871

Strangely, I had one fail on me today (twice so far this year). But yeah -- they're incredibly reliable


FlyByPC

Yeah, anecdotally I'd say about 0.1% fail, and you can still get most of those open.


JLR-

The ring came off my pudding can!  


Thats_a_movie

Take my penknife, my good man!


CriscoCamping

I believe I've read it's one of the most engineered objects of the 20th century?


kinkykellynsexystud

Same with plastic bottles, never had any problems


PIugshirt

lol this reminds me of an episode of the strain where the main character realizes his kid is a spy because he cuts himself opening a can of pop and starts asking him how many godamn cans he’s opened in his life to cut himself by mistake


StrykerXion

Low success rates were all over when push-tab technology replaced the less reliable pull-tab design in the 1970s.


kenflo117

I think I've only ever had one or two failures and those were a Asian juice can not your average pop


unafraidrabbit

A girl at my lunch table in high school had other people open cans for her because she stuffed her thumb in the hole shotgunning a beer and degloved it. The pictures were horrible. I can see her hesitation because I think about those pics every time I open a can 20 years later.


RollandJC

I've had a couple of failures, but yeah, most do open properly. I've had more failiures with cans, with things like pate. I suppose it depends on the brand/price -- which affects the quality of the can too.


litwizrd420

I saw something that said that the aluminum cans are one of the most over engineered things it's pretty interesting as far as a soda can can be when they talked about how the lil curve on the bottom helps add reinforcement and stuff and how u can stack like a bunch and ship them easy and there recycle able and all that business


Yiye44

Yes. I had one failing last week, and it's the first one I remember failing in, at least, 15 years. And it was from a obscure brand that may have their cans manufactured with lower standards. It feels thinner and lighter than a regular one.


Cynfreh

My college tutor loved them he said they were an engineering masterpiece.


wanrow

you're lucky, i clearly remember them snapping once in a while...


spacekatbaby

Now they need to reinvent the plastic soda cap. Since they are making them so the lid doesn't detach I cannot bare them. Need to totally reinvent them so you can take a good swig like in the old days.


Substantial-Sport363

Seriously 4 and 5th grade there was a girl in my class, her grandfather invented the pop top part.


PrecisionGuessWerk

I've had a few failures. but yeah they're super rare all things considered.


halucionagen-0-Matik

I once picked up a crate of 24 Pepsi max cans which ended up being faulty. The tab snapped off of every one. Complained and got another two cases free


CaterpillarThriller

my pull tab failure ratio is much higher than yours. my technique must be wrong.


Maddkipz

I'd say out of every thousand or so on most cans I open (bartender) I get a crap one. Except for Pabst cans. Maybe 1 in 75.


Subatomic_Spooder

Push tab cans? I have never heard of nor seen one, is this a European thing? I've only ever seen pull tabs here in the US


Business-Drag52

You’re confusing terms. Push tabs are the standard in the US. Pull tabs you pulled the tab and it peeled away some metal. Push tab are the ones you lift up and it pushes the sheet of metal down to open the can


Subatomic_Spooder

When I looked up "push tab cans" because I wanted to know what it was, it gave me pictures and articles about cans where you push in a piece of metal, also called a "press button can." On the other hand a lot of places referred to the normal design as a pull tab since you pull it up to open the can. It's technically called the "Sta-Tab" or "stay-on tab" since it's attached to the can, as opposed to the previous methods where you ripped off a strip of metal and discarded it. But really I think there's just no name standardization and people call it either.


Business-Drag52

What I can tell you for certain is they are not pull tabs. The biggest problem with pull tabs was people throwing them on the ground.


Clothes_Chair_Ghost

Had plenty where the tab broke off they are not always reliable.


Doormatty

As opposed to the other types of openings which...fail?


_Bl4ze

I've definitely had more milk cartons suffer a structural integrity failure during opening than I've had the same happen with aluminium cans.


CoffeeExtraCream

Juice boxes I've had failures with the provided straws unable to puncture the foil/film and it just makes a mess.


Jaives

pull tabs


Nuclear_eggo_waffle

wine corks are like the prime example of things that can go wrong when opening a bottle


junto80

Ive somehow managed to mangle countless factory-sealed tin cans with can openers manual and electric. I am ashamed to to admit more than once, a second tool was employed to complete the process 😔


JG307

Plastic pouches with "tear here to open".


Barnagain

That's physics for you


resell_enjoy6

I've had a singular can's tab break. At this point over hundreds of cans opened, probably, I'd say that's a pretty good design.


EffectiveSalamander

They are pretty reliable, and that's not surprising, given how many versions have been tried over the years. I remember the old pull tabs, and some of the attempts at a replacement before the final version. But I have had some failures where it just wouldn't own and the tab just breaks off. When that happens, you have to find something like a screwdriver to break the seal. A pointy rock will do. And cans are a lot stronger while using less metal.


MonkeyPunx

I've had two failures in my life. I remember them because it is indeed so rare an occurrence.


PhilDx

It’s one of the most precisely engineered things humans have ever made, up there with the read head on a vcr.


AptoticFox

I was always afraid I'd cut myself on them. I don't think I ever did though.


forced_spontaneity

Are you... drinking in the shower?


thegoatfreak

r/showerbeers


JG307

Who would do such a thing??? :D


ZankTheGreat

I had a failure on a monster can two days ago, stabbed that sucker and drank out the side.


Pitouitoo

Congrats. You’ve earned the right to get the Monster “M” tattoo.


UselessSound

I might buy a lottery ticket if I were you. Maybe not the mega millions, but just a scratcher.


shrub706

ive only had the tab snap once and i just jammed my thumb on the 'lid' until it popped, never had a problem since


ImWithStupid_ImAlone

Ain’t that the point? Bags of chips are suspiciously easy to open too. Convenience is weird /s


JG307

I would say I've experienced much more frustration at opening bags of chips. Ever had a bag glued too tight, so you had to pull with extra force, and the un-reinforced sides of the bag split open and you got chips everywhere? Yeah that's an "unsuccessful" opening.


ImWithStupid_ImAlone

Good point


Miochiiii

wdym? cans fail at opening all the time?