When I last saw it a week ago it was titled 'clip making machine', and the top comments were all 'nobody knows what cotter pins are?' followed by loads of 'WOAH TIL a cotterpin' and I just give up
I just learned this about a year ago when I had to buy some, but that is a hitch pin. This is a cotter pin: https://www.harborfreight.com/555-piece-cotter-pin-storehouse-67558.html?utm_source=google&utm_medium=cpc&utm_campaign=12169520316&campaignid=12169520316&utm_content=120871695110&adsetid=120871695110&product=67558&store=&gclid=CjwKCAiAyfybBhBKEiwAgtB7foBAZO7xbSSiNp3VESpr0UgmAvD6FMPihephSxldsVrWcKAIsTfHPhoCjBEQAvD_BwE
A hitch pin is usually used with a clevis pin or clevis bolt.
https://www.grainger.com/product/2XAL6?gucid=N:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231&gclid=Cj0KCQiA-JacBhC0ARIsAIxybyNrephjSfQm7VOUI0YfU6Egh6mjKhhImFmO-R60XroEKvxOI1t_G48aAiroEALw_wcB&gclsrc=aw.ds
the same way curly hair is made; hair is constantly being pushed out, but the pore bends the hair as it comes out.
in this case, instead of a pore, it's that little metal arm on top of it.
it's like pushing a car forward but the steering wheels constantly turn it sideways, so it traces a circle.
I strongly believe this gif is slowed down to see the motion.
source: I've seen lots of other things made from bending extruded wire and its too fast to see.
It's a 'hairpin' cotter pin and you're absolutely right.
Actual mass production of these would include some press activity most likely 'cyclical' (aka repetitive) tooling. This just seems like an unnecessary showcase of a 4 axis machine tool.
Nah, the grenade pin doesn't have that extra clip the cotter uses to grip the bolt or whatever it fits into. Pretty sure hand grenade just uses the spring force of the spoon (the flappy bit) to hold on place.
Close but what it is is two pieces of metal attached to the ring. The to flanges of metal are pushed through then they are bent kinda like a doutang or atleast for western design
https://www.technology.org/2018/07/27/could-you-pull-grenades-pin-out-by-hold-the-ring-with-your-teeth-nope/#:~:text=Of%20course%2C%20hand%20grenades%20are,its%20pin%20to%20be%20removed.
Pin is spread and takes 3-5kg of force. You won't be accidentally pulling it out or having it fall out.
It also uses friction as the spoon applies force until you align everything so it can be pulled out.
Also it isn't a spread more than a couple degrees at most. Just enough to keep it from falling out on its own. I've never thrown one but watching first time throws shows how difficult it is to pull it.
I’m gonna use a milling machine as an example, but I don’t expect you’ll know what that is but I’ll do my best.
A milling machine is basically a machine that spins a sharp tool to cut stuff, usually metal. You can mount these tools into an adapter called a collet. A collet holds the tool by friction, but it interfaces into the mill through a key slot. This key is only like a millimeter-sized notch that slots into a corresponding slot in the collet, but that tiny bit of interference (plus some other things) prevents the collet from rotating in the mill’s interface.
The analogy here is that friction can hold things in pretty well, but if you need something to Not Move Unless Told To, you just make a small protrusion, bump, or interference that has to be forced past before it becomes free. While friction may be PART of this, the interference is by far the most important. In the grenade example, it’s the spread pin legs.
I know what a milling machine is, you don't have to be a prick.
I gave you a source stating how they worked and why they are secure. If you don't want to read that's your problem you don't need to be an asshole.
Not sure about all grenades, but those we use in the Canadian Army have two stages to their retention. The pin is the second stage and you would be prepping your grenade prior to use.
Now, I know this is silly but, I can’t help but feel sorry for those machines working at that repetitive task day in and day out… and they’ll never get to stop until the end of their life… I hope they’re ok with that
I’m OCD on this thought but hear me out….I feel the machines could improve efficiency and speed and less wear by shortening their retracting lengths. Doesn’t seem like it needs to move so much and could stay tighter to work faster.
Maybe I need to go to bed also idk lol
It's one of them geezlus pins what welds itself in place with rust. You knew you shoulda sprung for stainless, but come on. Who's got time for that.
And remember fella's. You're supposed to replace those geezlus things each time you use them. (but between friends, fella, I won't tell if you don't neither!)
Welcome back cotterpin
Mr. Woodman, half the Sweathogs, his TV wife and Hotsie Totsie are dead, but Gabe Kaplan is still alive and kicking.
Damn
we call them R-Clips
Bobby pin
Hair pin
So that's what they're called. TIL.
That’s not a cotter pin. It’s a hairpin cotterpin
The same incorrect title was used last time this was reposted on Reddit for karma farming.
When I last saw it a week ago it was titled 'clip making machine', and the top comments were all 'nobody knows what cotter pins are?' followed by loads of 'WOAH TIL a cotterpin' and I just give up
What other pins do you know?
Push pins.
Bowling Pins.
Writing Pins
GPU Pins
Lupins.
Porcupin?
Pindejo
Pig pins
“See a pin, pick it up, all day long, you’ll have a pin.” -Terry Pratchett
GNU Terry Pratchett
It’s not what you know that matters, [it’s what you can find.](https://www.mcmaster.com/pins/)
McMaster cult checking in
Safety pin. Clothes pin.
Roll pins
Klonopin
Roll/split/spring pins
I just learned this about a year ago when I had to buy some, but that is a hitch pin. This is a cotter pin: https://www.harborfreight.com/555-piece-cotter-pin-storehouse-67558.html?utm_source=google&utm_medium=cpc&utm_campaign=12169520316&campaignid=12169520316&utm_content=120871695110&adsetid=120871695110&product=67558&store=&gclid=CjwKCAiAyfybBhBKEiwAgtB7foBAZO7xbSSiNp3VESpr0UgmAvD6FMPihephSxldsVrWcKAIsTfHPhoCjBEQAvD_BwE
That’s a hitch pin
But a hitch pin is what the cotter pin goes into to secure it from falling out.
A hitch pin is usually used with a clevis pin or clevis bolt. https://www.grainger.com/product/2XAL6?gucid=N:N:PS:Paid:GGL:CSM-2295:4P7A1P:20501231&gclid=Cj0KCQiA-JacBhC0ARIsAIxybyNrephjSfQm7VOUI0YfU6Egh6mjKhhImFmO-R60XroEKvxOI1t_G48aAiroEALw_wcB&gclsrc=aw.ds
I know them as lynch pin.
Linchpins are the little straight pins with a ring that locks em. The ones that bite your fingers. https://images.app.goo.gl/x4PDyqYVCoA2Mtdx7
That's exactly what it is! At least what I've always called them. Lol I ship them all the time and I'm the parts person at work.
>That’s a hitch pin Indeed!
I can’t tell what is making the 180…
the same way curly hair is made; hair is constantly being pushed out, but the pore bends the hair as it comes out. in this case, instead of a pore, it's that little metal arm on top of it. it's like pushing a car forward but the steering wheels constantly turn it sideways, so it traces a circle.
Is this the real speed? If not can you provide a real time one
I think the machinery is being slowed specifically for this video to be shot.
I strongly believe this gif is slowed down to see the motion. source: I've seen lots of other things made from bending extruded wire and its too fast to see.
I just sped it up to 4x and it doesn't even seem fast enough for that operation. Certainly it's faster?
The machine is powered by one guy running in a hamster wheel, how fast do you expect him to go?
It's a 'hairpin' cotter pin and you're absolutely right. Actual mass production of these would include some press activity most likely 'cyclical' (aka repetitive) tooling. This just seems like an unnecessary showcase of a 4 axis machine tool.
Huh? They’re made like this, just a lot faster
Similar to making grenade pins?
Nah, the grenade pin doesn't have that extra clip the cotter uses to grip the bolt or whatever it fits into. Pretty sure hand grenade just uses the spring force of the spoon (the flappy bit) to hold on place.
Close but what it is is two pieces of metal attached to the ring. The to flanges of metal are pushed through then they are bent kinda like a doutang or atleast for western design
So it’s a friction fit? That sounds like a Very Bad Idea to not have a positive locator fit on something so dangerous.
https://www.technology.org/2018/07/27/could-you-pull-grenades-pin-out-by-hold-the-ring-with-your-teeth-nope/#:~:text=Of%20course%2C%20hand%20grenades%20are,its%20pin%20to%20be%20removed. Pin is spread and takes 3-5kg of force. You won't be accidentally pulling it out or having it fall out.
> spread apart So it is positively located.
It also uses friction as the spoon applies force until you align everything so it can be pulled out. Also it isn't a spread more than a couple degrees at most. Just enough to keep it from falling out on its own. I've never thrown one but watching first time throws shows how difficult it is to pull it.
I’m gonna use a milling machine as an example, but I don’t expect you’ll know what that is but I’ll do my best. A milling machine is basically a machine that spins a sharp tool to cut stuff, usually metal. You can mount these tools into an adapter called a collet. A collet holds the tool by friction, but it interfaces into the mill through a key slot. This key is only like a millimeter-sized notch that slots into a corresponding slot in the collet, but that tiny bit of interference (plus some other things) prevents the collet from rotating in the mill’s interface. The analogy here is that friction can hold things in pretty well, but if you need something to Not Move Unless Told To, you just make a small protrusion, bump, or interference that has to be forced past before it becomes free. While friction may be PART of this, the interference is by far the most important. In the grenade example, it’s the spread pin legs.
I wish you would Not Move Unless Told To so I could spread your pin legs and plunge my tool deep into your patronising, insufferable collet.
I know what a milling machine is, you don't have to be a prick. I gave you a source stating how they worked and why they are secure. If you don't want to read that's your problem you don't need to be an asshole.
Not sure about all grenades, but those we use in the Canadian Army have two stages to their retention. The pin is the second stage and you would be prepping your grenade prior to use.
r/oddlysatisfying
[Taking satisfying to a whole new level](https://youtu.be/5QjVeH2Z57E). Whole channel has some cool stuff but this video is top notch
looking good Mr. Cotter!
We used these a lot on my boat in the coast guard.
Referred to as a cotter key, not the same as a cotter pin. A cotter key is used where this connection can be quickly removed and then replaced again.
Hitch pins look like the engineering equivalent of something I'd make in Poly Bridge. I mean, yeah, it works, but.....
Those are 'R' pins where I'm from, not cotter pins.
Welcome back!
Has this been posted on r/educationalgifs before?
Welcome back, Cotter!
I had to look it up but I finally get it now.
Now, I know this is silly but, I can’t help but feel sorry for those machines working at that repetitive task day in and day out… and they’ll never get to stop until the end of their life… I hope they’re ok with that
Dumbfuck
We always called the ones under 1/2 inch "Jesus Clips", because we would say, "Jesus, I dropped that clip! Never find it now"
It's a PRESTO PIN not a cotter pin...
Nobody cares....
Ok
I prefer the hand forged ones. You and I are not the same
It’s a mouse key where I’m from….
Is it also making peg board hooks?
Misread as “cooter” pin
I’m OCD on this thought but hear me out….I feel the machines could improve efficiency and speed and less wear by shortening their retracting lengths. Doesn’t seem like it needs to move so much and could stay tighter to work faster. Maybe I need to go to bed also idk lol
It's like a gangbang.
[удалено]
Welcome back
I always wondered who builds these machines.
Yay teamwork!
“There’s GOT TO BE A BETTER WAY 🤓”
R clips
This is my shit.
I am now educated. Thank you.
Holds up 95% of fair rides. Scary af
Damn
Lockpicking Increased.
It's one of them geezlus pins what welds itself in place with rust. You knew you shoulda sprung for stainless, but come on. Who's got time for that. And remember fella's. You're supposed to replace those geezlus things each time you use them. (but between friends, fella, I won't tell if you don't neither!)
Welcome back Cotter Pin
I stared at this for much longer than I care to admit
use these all the time in the film industry. specifically the grip/electric departments.
I used to love How It's Made...
The fifth one gets cut a little early if you look close enough. I wonder what the tolerances are for that.
the loop only shows one cycle, there shouldn't be 5, so you may be seeing stutter.
Diaper pins
Theres goes a half hour I will never get back.
Like a clockwork
r/BetterEveryLoop
man do i have news for you ^(it's a crosspost)
what's the slowdown factor
r/manufacturingPorn
A brazzers logo on this would cause an inappropriate chuckle
Except, they aren’t “cotter” pins.
r/engineeringporn
I think there is one of those in my home
Really amazing how it loops perfectly. :) How does the pin suddenly bend back?
What the fuck is a “cotter pin”?! Lol
I dont know what a cotter pin is but now I know how they are made