@@Armuotas The plastic is "injected" into the mold, sometimes flowing "around" other parts placed in the mold before hand, like in the case of this valve. "Exjected" sounds like all the plastic just spilled everywhere.
I just spent 15 minutes totally engrossed in the production of an extremely cheap ball valve. I’m glad you’ve chosen to use your powers for good and not evil Old Tony.
Didn't expected to see a content creator consuming the content of another content creator, almost as if the youtubers ware like.. like me.. watching together shows we make... Like we are brothers... Srry, I get star struck :3
Hi, Tony, I have worked in injection molding for the last 22 years. You are really close on most everything. The mandrel is called a core and that would be on the cavity half. You would load seal-ball-seal and the core pin on the core half would come up and preload the insert stack of the ball and seals as the mold closes. Around the periphery of the core side core pin will be another witness line that's the ejector sleeve. This is an ejector pin but tubular. This process is overmolding they call it insert overmolding. We do this with an aluminum hub in a steering wheel. The wrinkling opposite the gate is known as jetting. They just blasted the shot in too fast on the first stage of the shot before a flow front had time to form. Keep up the fantastic work you are one of my favorate UA-camrs!
I learned a wee bit about injection molding when I worked for a plastics fabricating company. One cool thing I learned is that there is no "heater" involved in melting the plastic. The drive screw forces the plastic into an ever smaller space formed by the screw threads and diameter until it reaches the aperture and then it's in a liquid (or semi-liquid state).
There most definately is heaters, usually three band heaters, referred to as "zones" to keep the temperature stable and the plastic molten. Sure the shearing induces heat to the plastic, but you can't rely on that alone.
Well, maybe in different applications or materials? These were never discussed in the courses I took nor with the owner of the injection company I worked with. Now maybe technology has changed, we're talking 25 years ago......
Depends mainly on the type of part and production cycle (as parts per unit of time) of the mold. You have heaters on the injection machine and in some molds (depending on the part geometry, the time of each cycle, etc) you have hot runners (nozzles with heaters) .
It's my understanding that the heater bands are there to maintain the temperature of the material in the barrel when the screw is not in play in fact a lot of our machines drop power to heater bands until the machine times out in order to save power that's normally on our ppf dedicated machines because the melting temp is lower then abs or pcabs also some molds have hot runners to maintain even heat threw out the mold and aid in the smooth flow of material
A rod through one of the holes in his bench down to his rotary weld table underneath? I have no clue I don't even feel qualified to watch his videos let alone comment
@@jakemrcool that was my first thought but it would be such an intricate touch for it to skip along with his speaking... maybe yiure right I shouldn't put any level of detail past him
Ave did the same video and I just watched it again before this, but it’s not in my history. Thank you guys so much because I thought I had just lost my mind.
the mold actually isnt a perfect negative, it also takes into account shrinking due to the cooling of the plastic which can be quite a lot. Which is also why mold making is a real art
Especially before Moldflow and similar software. Even after the mold is designed and fabricated you can change the part size slightly by changing the process conditions (but that tends to compromise cycle time).
The thicker bottom of the valve is probably intentional as well. I hypothesize that it would increase flow along the bottom where the plastic is injected versus the rest of the part allowing control of how the weld line forms at the top
I just watched this for a second time after and extended time, even though I recalled it very well, but this time with a focus on the writing, presentation, and production.
Jeff Petersen I would live to see you make some videos and teach a sparky like me. I have a hobby lathe and I'm loving it but precision past tenths is amazing
Jeff Petersen . As a custom molder who regularly had to deal with someone else's mistakes I appreciate a good tool and die maker and getting them involved on the front end of a project. A great way to loose money is chasing the cheapest tool price.
I love showing these videos to my two kids! Thank you! Much better than a “how it’s made” video. A real person, with a real brain, in their garage, doing stuff. ❤️
A truly amazing teacher is a rare gift, and I’m extremely grateful you’ve gifted us all with these lessons. I have an intense curiosity about how things are made, and your videos are the best satiety I’ve found. Thank you!
This is really genius Sir. And I like the way you presented it, it was very funny informative and you provided right information at right time. This is the best 15 min of Tech video I have ever seen. I have not just earned how it is made but the process of how you approached it was brilliant. You made it so easy to understand. Thank you
The E and D are called cavity ID . That way if there is a defect you can tell which cavity did it. Most tools make more then one part at a time. We have molds that make up to 36 parts at once. Oh yea I've been a tool maker for 30 years. You did an excellent video explaining basic molding and yes you are right about the over molding.
Wow! I've used hundreds of these pvc ball valves and it never occurred to me what a wonder of industrial technology they are. I think a 1/2" valve at the big box stores around here would be like $1.85. Unbelievable.
i’ve used many of this valves over the years and not once stopped to appreciate how these are made. i love knowing how things work, how things come together and such. i have a new found appreciation for pvc ball valves and whom ever designed these little marvels
I laughed, I loved, I learned.... Well done Tony! (Seriously, this was one of my favorites. I hope you do more "how it was made" style vids in the future.)
I always get a kick out of your videos, well written, illustrated and presented. I love the subtle references, well placed most times, to other awesome UA-camrs, keep up the fantastical work.
My father was a mechanical engineer, and when I was very young I remember how amazed he was by the precision of the mouldings in the first Lego set he bought me - that would have been around 1963 or so, when the first of the modern style bricks were released. Up to then you either had Meccano nuts and bolts, or your construction toy either wouldn't go together properly or fell apart - well, there were some plastic construction toys that worked OK, but not by press-fits of perfect force. You are right, it is a miracle of modern engineering.
The truly amazing thing about LEGO is the absolute quality standard that has been maintained for over 50 years. Take one of the early LEGO pieces and it will snap onto a current production part just as crisply as two made 10 seconds ago. As to the shape of the bricks and their method of locking together LEGO the idea had been used before on products not up to the same quality level as LEGO. Interestingly there are free 3D printing files to make adaptor blocks to enable LEGO to be used with other building set styles. www.fastcompany.com/3054837/build-with-lego-knex-and-8-other-toys-at-once-with-this-free-universal-adapter-set So if you've got a 3D printer and kids (or grandkids) who do stuff with LEGO or any of the other brands it can open another world of possibilities.
A former Mechanical engineer and soon to be retired dentist I am always impressed with your video's. An incredible amount of work goes into them, the humour is priceless and the insight and intelligence you display never fails to amaze and entertain me. This injection moulded valve video was GREAT, I've seen the valve but never had the inquiring mind to figure out how they were manufactured. So thanks for the info AND the entertainment!
I knew some of this having worked on an injection molding line one summer but your explanation was much better. A few things I learned that summer: One some machines run much hotter than others, polystyrene takes only a little heat, PVC a bit more, and Polycarbonate is scary to mold. Two when a mold is blocked they like to crank up the heat even more, the foremen got localized 2nd and 3rd degree burns all the time when the molds would "clear" themselves. And three, all parts are made of either "virgin plastic" or regrind, Four flash and sprue always need to be trimmed from the parts, always. This is the job the noobs get and hated. You can also mold in thread inserts and all sorts of other interesting things.
Coming from a design engineering background, it's incredibly refreshing to listen to someone else go through a similar analytical process as myself when presented with something that is a small work of genius ^_^ Very entertaining! I enjoyed the mental exercise of predicting your points before you said em! I'd love to see more like this in future =]
"Genius is an infinite capacity for taking pains." Thomas Carlyle - and that is how I view your work Tony. And, of course the same goes for the patient developer of the ball valve you dissected. This is quality video!
2 notes... Betting the "mandrel" is part of the whole mold. One seat and the ball are stuck to one side of the tool, and the other seat is on the other side of the tool, and when it comes together, the center seals on the ball itself. Part the second, the thicker on the bottom than the top is probably intentional so the plastic flows more reliably to the far side of the mold from the injection point.
ua-cam.com/video/LfiRGJYjgMs/v-deo.html That's what it look is going on here, except there is a mandrel attached to the ball for the handle to be attached later.
The drill housing was likely made using multiple shot injection molding. The whole part being made in one tool. The red plastic would be shot first then then the tool would have inserts that would back off, just enough to make room for the black plastic, then the second shot would be injected. Check out multi shot injection molds, iv seen up to 4 shot molds, 4 separate plastics in one tool.
I’ve been working in a plumbing warehouse the last 3 months and I see so much of this stuff everyday and I never really thought this deep into something so simple. Genius
This video is... genius. I find the topic of injection molding really interesting, I never figured so much effort goes into minimizing cost. Also, I like these 'kind of deep dive' videos.
I understand injection molding, like just about everything these days, is a incredibly complicated subject, that's why I wrote "kind of deep dive". What I wanted to say was I like this explainey type of video.
"Patient died, but the operation was a success." Love your commentary and how you explain things in a funny way. Keep up the good work. Greetings from Germany.
I work in a factory doing injection molding for shoes, specifically rubber soles and plastic heels. Despite most of the products we make need quite a high precision, we still use aluminium alloys molds that get banged really easy, but also the work time of those products are sometimes over the 3 minutes total between injection and cooling, also they all require quite some calculation to prevent mismatching once the rubber/plastic shrink after cooling, cause it can mean a size 10 sole could become a size 8!
That was a truly amazing insight into the world of injection molding!!! I am prepared to bet that many of my colleagues in engineering, unless they have actually worked in the field, can learn a thing or two from this video!!!
Robert Leitch . One way to do it is with 2 injection units and a rotating platen on one half of the tool. Shoot the plastic part rotate half the mold close on another half of the tool having space for the rubber over molded grip and shoot it again with the other injection unit... or a third unit..
As always thoroughly worth while. I am reading David Gingery’s books about building injection molding equipment. This video is a great source for the mold making process.
Most injection molding content on UA-cam relates to simple obvious molds, like the axe-head packaging. Thank you for showing something more complex and amazing.
There was a video on the jerry can, where they enumerated all the ingenious design decisions made for such a simple looking tool. I loved it because I feel like brilliant engineering lives among us, every day, unnoticed. I like videos like this that are, "let's take a few dollars of plastic and look at why this is absolutely brilliant."
Now that's something that I never thought about, but found it very interesting. I will never be able to look at one again (or other plastic stuff) without thinking of your video and how it's made. Another great job!
He didn't say it was the number of times it could be recycled. He said it was the number of times you'll get to use it before you lose it or run over it with your car.
I think this actually was the first video i have seen from your channel (it was a couple of weeks ago) and ever since i have been watching a lot of your video's, and i think your channel is amazing.
That is what I was thinking also, I was looking for a comment to see if anybody else caught it and agreed with me. Not saying this confirms we are right.
I have absolutely no idea why I found this video so fascinating. I also don't understand the UA-cam algorithm and how the hell they knew I'd watch this entire video😂😂
I know I need to start learning my way around the shop, but I haven't been able to keep myself interested with other channels. Your sense of humor makes learning fun.
Noone: Absolutely noone: UA-cam Recommendations: here watch this video on injection molding of a PVC valve from 2 years ago Me, who knows nothing about manufacturing and has never watched a video about anything like this at all: *watches entire thing and enjoys it*
I buy these for my garden irrigation projects where I live in Thailand, except here they are blue PVC. Maybe has something to do with Elvis. Maybe not. I usually pay about 18baht for the 1/2" valve. About 59 cents. A wonder of modern industrialization.
No matter how simple the video This Old Tony always makes it interesting. Always looking forward to the next video from the best UA-cam channel going GW
Made those Valves here in Germany.....you are a little bit wrong. You can see the different Letters on the side of the Valve ( E and D) those are different parts in different Molds/Tools. In the Factory there will be up to twenty machines and all they do all day long is producing one of those parts. One machine for Parts with the Letter A...another one with letter B and so on. The Letter tells you wich size of pipe will fit in the part. So Letter E means its for 1/2" on the intake side, and D is for the outgoing side. There is a small rim on the "E" that stopps the Valve Knob from making a wild 360 turn. So you have one machine per valve side and one machine thats produces the different knobs. Now comes the wonder of High frequency welding. Or like we call it in Germany. ...."Hochfrequenz Ultraschallschweißen" You place the first part in another machine, pipe side down in a special welding tool....a big massiv block of aluminum. the you place the central piece on top of this body. then comes the second Body part . You close the Welding machine and with the power of frequency you move the contacting surfaces of the parting line against each other. This generates enogth heat to melt the PVC on this line, and after a second the Welder presses the top part down so that the two halves become one. So you can produce milions of different bodyparts on stock, and you can combine them in post production (The welding step) like it pleases you. 1/2" Inch to 1"? No problem. Swap one welding tool for the one you like, and you are good to go. ua-cam.com/video/ddEnjwg1cF0/v-deo.html Here...have a short video were they weld an medical filter body.....Have fun and take a like ;)
Ultrasound welding would have left some extra material coming out at the parting line, hence there would have been witness marks of removing those from the valve on the video. Those are definitely a product of overmolding (insert molding).
Start watching the video again from 7:20 on. He talks about the possibilities and there are definitely valves glued or welded from two parts, but this one is molded as a single piece.
As a manufacturing engineer very familiar with injection molding, this was all still new to me (I guess I hadn't paid enough attention to those little valves that I personally don't like - but now I've got a new appreciation for them, even if they seize up and are hard to open and close out the gate) and a thrill to watch so playfully presented. This video was... genius.
Excellent tutorial Tony, I work with a lot of injection molding machines (mainly controls applications / robotics) and it's always nice to learn more about the subject!
You mean that the egg came first and then they injected the chiken around it?
+
ha, but actually, the chicken embryo grows the shell around itself...
genius
What bugs me is the combination of words "injected" and "around". We need something like "exjected".
@@Armuotas The plastic is "injected" into the mold, sometimes flowing "around" other parts placed in the mold before hand, like in the case of this valve. "Exjected" sounds like all the plastic just spilled everywhere.
I just spent 15 minutes totally engrossed in the production of an extremely cheap ball valve. I’m glad you’ve chosen to use your powers for good and not evil Old Tony.
You can see the evil peaking through in the video where his son is wired into the DIY CNC router.
But isn't it made of that evil plastic?
Brilliant content old Tony, as a former plumber I found this amusing. Top work as usual.
+colinfurze was literally just watching your tie fighter build! I mean... it's no PVC valve... but not too shabby. ;)
Love your videos , Colin. One crazy plumber to another
My two favourite uncle's in one comment.
I hope you guys help out Alex the French guy with some of your metal work magic
Didn't expected to see a content creator consuming the content of another content creator, almost as if the youtubers ware like.. like me.. watching together shows we make... Like we are brothers...
Srry, I get star struck :3
This is the best plastic valve video that will ever be made.
"Well I'm no plastic surgeon..." - Best line evar.
I missed that! Doh!
you could say it was ....... genious.
9:53 after hearing that line I had to take a look at the comments. Indeed the best line ever xD
“The patient died, but the operation was a success”
Yes got a solid chuckle
Hi, Tony, I have worked in injection molding for the last 22 years. You are really close on most everything. The mandrel is called a core and that would be on the cavity half. You would load seal-ball-seal and the core pin on the core half would come up and preload the insert stack of the ball and seals as the mold closes. Around the periphery of the core side core pin will be another witness line that's the ejector sleeve. This is an ejector pin but tubular. This process is overmolding they call it insert overmolding. We do this with an aluminum hub in a steering wheel. The wrinkling opposite the gate is known as jetting. They just blasted the shot in too fast on the first stage of the shot before a flow front had time to form. Keep up the fantastic work you are one of my favorate UA-camrs!
I learned a wee bit about injection molding when I worked for a plastics fabricating company. One cool thing I learned is that there is no "heater" involved in melting the plastic. The drive screw forces the plastic into an ever smaller space formed by the screw threads and diameter until it reaches the aperture and then it's in a liquid (or semi-liquid state).
There most definately is heaters, usually three band heaters, referred to as "zones" to keep the temperature stable and the plastic molten. Sure the shearing induces heat to the plastic, but you can't rely on that alone.
Well, maybe in different applications or materials? These were never discussed in the courses I took nor with the owner of the injection company I worked with. Now maybe technology has changed, we're talking 25 years ago......
Depends mainly on the type of part and production cycle (as parts per unit of time) of the mold. You have heaters on the injection machine and in some molds (depending on the part geometry, the time of each cycle, etc) you have hot runners (nozzles with heaters)
.
It's my understanding that the heater bands are there to maintain the temperature of the material in the barrel when the screw is not in play in fact a lot of our machines drop power to heater bands until the machine times out in order to save power that's normally on our ppf dedicated machines because the melting temp is lower then abs or pcabs also some molds have hot runners to maintain even heat threw out the mold and aid in the smooth flow of material
Are we just going to ignore how it was spinning by itself at 0:30
Yeah pretty much
A rod through one of the holes in his bench down to his rotary weld table underneath? I have no clue I don't even feel qualified to watch his videos let alone comment
Stop motion
@@jakemrcool that was my first thought but it would be such an intricate touch for it to skip along with his speaking... maybe yiure right I shouldn't put any level of detail past him
Perhaps the bench was vibrating
Was that the AvE logo that popped out of the example mold near the beginning?
Surestick88 2:57 well spotted
I saw that too. had to rewind to make sure that's what it was.
Ave did the same video and I just watched it again before this, but it’s not in my history. Thank you guys so much because I thought I had just lost my mind.
lol mee too
Yeah, that was my valve. You owe me a valve.
Ed
I suppose you are not open for suggestions...
ua-cam.com/video/IiGTkl4fSx4/v-deo.html
@@smickandily you can just type 4:11
the mold actually isnt a perfect negative, it also takes into account shrinking due to the cooling of the plastic which can be quite a lot. Which is also why mold making is a real art
Especially before Moldflow and similar software. Even after the mold is designed and fabricated you can change the part size slightly by changing the process conditions (but that tends to compromise cycle time).
The thicker bottom of the valve is probably intentional as well. I hypothesize that it would increase flow along the bottom where the plastic is injected versus the rest of the part allowing control of how the weld line forms at the top
The patient died, but the operation was a success! Subd
I imagine this was assembled in brazil and the letters E and D stands for esquerda and direita ( left and right). 😂
I really liked this vid Tony. A series on explaining clever everyday items would make me happy :-)
Me too
Steve James I'll keep my eyes peeled!
In the mean time, you might want to check Engineer Guy.
Or how its made
You could call it "How it's made"
Humans 2 million years in the future; evolved ejector pins in the roof of their mouth.
Eddie Van Horn. You have an interesting brain to have envisioned that
Milk. Its the perfect solvent for peanut butter.
I find hot blackcurrant juice the preferred solvent. But only because Trichloroethene is no longer readily available (and tastes disgusting).
Imagine what that would do to the porn industry.
Are adult teeth just ejector pins for baby teeth?
Your vids are great. Learning cool stuff and you make me laugh!
I'm not sure why I watched this through a year ago. And even less sure why I just watched it all again today!
I just watched this for a second time after and extended time, even though I recalled it very well, but this time with a focus on the writing, presentation, and production.
same but 6 months later
Because its *GENIUS!*
you actually showed the cutting in the video... the fame has changed you...
Michal Kubrický: DIY to be fair he did do that operation gag
all for the plastic surgeon joke
A bit of doubleboost
I'm am a tool and die maker by trade. It nice to see someone appreciate the trade . Great video 🖒
Jeff Petersen I would live to see you make some videos and teach a sparky like me. I have a hobby lathe and I'm loving it but precision past tenths is amazing
and i am a Tool and Die apprentice in Germany in my 3rd year, a world where 0.1mm is way too much
Jeff Petersen yeah you should do how to videos in your free time I’m sure many people especially me would appreciate it
Jeff Petersen . As a custom molder who regularly had to deal with someone else's mistakes I appreciate a good tool and die maker and getting them involved on the front end of a project. A great way to loose money is chasing the cheapest tool price.
how do you say in germany tenths of mm are for woodworkers, hundreds are for metal ;)
"i've bondoed, sanded and primered and repainted all of my water valves...." hahhaahhahahahahahhaha
I love showing these videos to my two kids! Thank you! Much better than a “how it’s made” video. A real person, with a real brain, in their garage, doing stuff. ❤️
This is like AvE but with an intelligible explanation. Thank you for the video!
Yes. This Old Tony's version of a BOLTR. He did pay homage when demonstrating the mold.
And safe to post where kiddos like scouts and students can see it w/o their parents being upset.
You just don’t speak what ever language it is ave speaks. I think it somewhere between southern mumble and deep north Canadian
I imagine this was assembled in brazil and the letters E and D stands for esquerda and direita ( left and right). 😂
And NO profanities.
he cut my valve in half!!!
A truly amazing teacher is a rare gift, and I’m extremely grateful you’ve gifted us all with these lessons. I have an intense curiosity about how things are made, and your videos are the best satiety I’ve found. Thank you!
So much effort and time spent on just the first minute. His dedication to mucking around in the shop is just marvellous. I salute you Tony.
Hey Tony, how the hell did my ball valve end up in your shop?
Ed M
kiss it goodbye my friend. He hacked it all up. R.I.P Ed’s ball valve
This is really genius Sir. And I like the way you presented it, it was very funny informative and you provided right information at right time. This is the best 15 min of Tech video I have ever seen. I have not just earned how it is made but the process of how you approached it was brilliant. You made it so easy to understand. Thank you
The E and D are called cavity ID . That way if there is a defect you can tell which cavity did it. Most tools make more then one part at a time. We have molds that make up to 36 parts at once. Oh yea I've been a tool maker for 30 years. You did an excellent video explaining basic molding and yes you are right about the over molding.
I love this stuff! The engineering involved in making a part work well, and cost so little, is amazing.
The invisible rotating display table was amazing, could stare at it for minutes.
I found it terrifying...
Azureus Rising lol
Wow! I've used hundreds of these pvc ball valves and it never occurred to me what a wonder of industrial technology they are. I think a 1/2" valve at the big box stores around here would be like $1.85. Unbelievable.
i’ve used many of this valves over the years and not once stopped to appreciate how these are made. i love knowing how things work, how things come together and such.
i have a new found appreciation for pvc ball valves and whom ever designed these little marvels
I absolutely love your narrative style! Clear, concise and with a healthy portion of comedy to boot. Thanks for the fantastic entertainment
I laughed, I loved, I learned.... Well done Tony! (Seriously, this was one of my favorites. I hope you do more "how it was made" style vids in the future.)
The different angle makes all the difference.
at least 10 degree difference.
That's what *she* said...
I always get a kick out of your videos, well written, illustrated and presented. I love the subtle references, well placed most times, to other awesome UA-camrs, keep up the fantastical work.
This was a perfect dissection of a valve, what a beautiful work.
My father was a mechanical engineer, and when I was very young I remember how amazed he was by the precision of the mouldings in the first Lego set he bought me - that would have been around 1963 or so, when the first of the modern style bricks were released. Up to then you either had Meccano nuts and bolts, or your construction toy either wouldn't go together properly or fell apart - well, there were some plastic construction toys that worked OK, but not by press-fits of perfect force. You are right, it is a miracle of modern engineering.
The truly amazing thing about LEGO is the absolute quality standard that has been maintained for over 50 years. Take one of the early LEGO pieces and it will snap onto a current production part just as crisply as two made 10 seconds ago. As to the shape of the bricks and their method of locking together LEGO the idea had been used before on products not up to the same quality level as LEGO. Interestingly there are free 3D printing files to make adaptor blocks to enable LEGO to be used with other building set styles. www.fastcompany.com/3054837/build-with-lego-knex-and-8-other-toys-at-once-with-this-free-universal-adapter-set So if you've got a 3D printer and kids (or grandkids) who do stuff with LEGO or any of the other brands it can open another world of possibilities.
Love watching AvE take stuff apart. Now This Old Tony is taking stuff apart too? UA-cam just got better.
The thing is AvE usually puts them back together to show them work. This is missing some material now.
The only reason I’m reading comments is to see if anyone else would would notice the AvE reference
@@petederksen9300 the moulding example right?
@@petederksen9300 Yeah I was like wait a second that logo looks familiar!
@@petederksen9300 dido that.
A former Mechanical engineer and soon to be retired dentist I am always impressed with your video's. An incredible amount of work goes into them, the humour is priceless and the insight and intelligence you display never fails to amaze and entertain me. This injection moulded valve video was GREAT, I've seen the valve but never had the inquiring mind to figure out how they were manufactured. So thanks for the info AND the entertainment!
I knew some of this having worked on an injection molding line one summer but your explanation was much better. A few things I learned that summer: One some machines run much hotter than others, polystyrene takes only a little heat, PVC a bit more, and Polycarbonate is scary to mold. Two when a mold is blocked they like to crank up the heat even more, the foremen got localized 2nd and 3rd degree burns all the time when the molds would "clear" themselves. And three, all parts are made of either "virgin plastic" or regrind, Four flash and sprue always need to be trimmed from the parts, always. This is the job the noobs get and hated. You can also mold in thread inserts and all sorts of other interesting things.
12:40 - Moved up about 10, not 20. 20 would have made it 180, 220.
Thought that too, 20 thou is a fair amount of deflecton 10 sounds more reasonable
Yeah same here, .010 would've made both sides .200
Isn't the inner side of PVC fittings tapered tho? As in, if he put the caliper in further, it would read higher?
Coming from a design engineering background, it's incredibly refreshing to listen to someone else go through a similar analytical process as myself when presented with something that is a small work of genius ^_^ Very entertaining! I enjoyed the mental exercise of predicting your points before you said em! I'd love to see more like this in future =]
Fantastic! Fantastic explanation and timing. I followed along, wasn't swamped with extraneous details and learnt a lot. Thanks!
"Genius is an infinite capacity for taking pains." Thomas Carlyle - and that is how I view your work Tony. And, of course the same goes for the patient developer of the ball valve you dissected.
This is quality video!
2 notes... Betting the "mandrel" is part of the whole mold. One seat and the ball are stuck to one side of the tool, and the other seat is on the other side of the tool, and when it comes together, the center seals on the ball itself. Part the second, the thicker on the bottom than the top is probably intentional so the plastic flows more reliably to the far side of the mold from the injection point.
ua-cam.com/video/LfiRGJYjgMs/v-deo.html
That's what it look is going on here, except there is a mandrel attached to the ball for the handle to be attached later.
fdfoxter The only difference there was TOT's ball valve was made with a hot runner and your video showed a cold runner.
The drill housing was likely made using multiple shot injection molding. The whole part being made in one tool. The red plastic would be shot first then then the tool would have inserts that would back off, just enough to make room for the black plastic, then the second shot would be injected. Check out multi shot injection molds, iv seen up to 4 shot molds, 4 separate plastics in one tool.
damn those things would cost like a 100,000$
from my understanding 7 figures is more accurate
For 100,000$ you might not get one simple mold made from tool steel.
Simple molds are about $1500 at Protolabs: www.protolabs.com/services/injection-molding/
@@krzysztofukawski2348 Probably $25,000 in China from P20.
I’ve been working in a plumbing warehouse the last 3 months and I see so much of this stuff everyday and I never really thought this deep into something so simple. Genius
Nothing better than seeing the world through the eyes of the inner child. Best 15 minutes of my life that I've utilised so far today!
I’ve been looking for that valve!
This video is... genius.
I find the topic of injection molding really interesting, I never figured so much effort goes into minimizing cost.
Also, I like these 'kind of deep dive' videos.
go watch How it's Made, then.
Appl Tom . Just about everything Tony said was spot on but this is not even close to a deep dive. He did do a great overview though.
I understand injection molding, like just about everything these days, is a incredibly complicated subject, that's why I wrote "kind of deep dive".
What I wanted to say was I like this explainey type of video.
"Patient died, but the operation was a success."
Love your commentary and how you explain things in a funny way. Keep up the good work. Greetings from Germany.
That was really interesting - I was completely drawn in. Awesome knowledge and detail.. hat's off to you sir !
I work in a factory doing injection molding for shoes, specifically rubber soles and plastic heels.
Despite most of the products we make need quite a high precision, we still use aluminium alloys molds that get banged really easy, but also the work time of those products are sometimes over the 3 minutes total between injection and cooling, also they all require quite some calculation to prevent mismatching once the rubber/plastic shrink after cooling, cause it can mean a size 10 sole could become a size 8!
At the injection mold factory I work at we also use aluminum for the motorcycle and bicycle grips. Everything else we use p10.
A masterpiece of editing, especially the AvE part!
I'm impressed! Both with the valve design and the presentation.
That was a truly amazing insight into the world of injection molding!!! I am prepared to bet that many of my colleagues in engineering, unless they have actually worked in the field, can learn a thing or two from this video!!!
1:38 "How in the H E double canadian hockey stick..." 😂😂😂
Please make more of this kind of video!
Its really interesting and i got some cool ideas for projects / solutions from it...
thx
Thanks fot the high quality content; it's nice to dig in the everyday stuff that we have no idea how they came into being. Ty
your editing and camera work is consistently imaginative. wonderfully done sir.
Nice to see you talking about my everyday job. Just a interesting fact ruberised handle is injected in one mould in one operation ;)
I been trying to get my head round how that works. No success so far.
Robert Leitch . One way to do it is with 2 injection units and a rotating platen on one half of the tool. Shoot the plastic part rotate half the mold close on another half of the tool having space for the rubber over molded grip and shoot it again with the other injection unit... or a third unit..
We've got ourselves a BOLTR right here
I don't know which is better, Tony's knowledge of how things work or his great and sharp humor. Glad I found your channel keep it up.
As always thoroughly worth while. I am reading David Gingery’s books about building injection molding equipment. This video is a great source for the mold making process.
The way you defined the number 5 left a hand shaped mark on my knee.
Telling what it REALLY says would have been nice, though.
Fantastic video as usual
Most injection molding content on UA-cam relates to simple obvious molds, like the axe-head packaging. Thank you for showing something more complex and amazing.
There was a video on the jerry can, where they enumerated all the ingenious design decisions made for such a simple looking tool. I loved it because I feel like brilliant engineering lives among us, every day, unnoticed.
I like videos like this that are, "let's take a few dollars of plastic and look at why this is absolutely brilliant."
Genius!
I must re-watch this video at a slightly different angle...
A video i keep rewatching. Some of the finest work on UA-cam.
Now that's something that I never thought about, but found it very interesting. I will never be able to look at one again (or other plastic stuff) without thinking of your video and how it's made. Another great job!
You should watch the engineer guy video on injection moulding too 👌👌
Sai Skanda seconded. Is that the one where he shows how well Lego is made?
That 5 inside the recycle sign does not mean it can be recycled 5 times. The 5 stands for PP. It can be 1-7 for plastics unless specified.
He didn't say it was the number of times it could be recycled. He said it was the number of times you'll get to use it before you lose it or run over it with your car.
I think this actually was the first video i have seen from your channel (it was a couple of weeks ago) and ever since i have been watching a lot of your video's, and i think your channel is amazing.
Great comprehension of molds and how they work. That is refreshing. You just got a new subscriber!!
thanks! and welcome!
Small point but I think at 12:45 you meant moved up 0.010", not 0.020" (which would take 0.01" off the top and add it to the bottom)
That is what I was thinking also, I was looking for a comment to see if anybody else caught it and agreed with me. Not saying this confirms we are right.
Nah I agree.
Clearly THIS Old Tony has gone senile to make such a human error. Unforgivable! I should just give up on this rubbish channel... ;-)
I had to scroll down a million posts to make sure I wasn't the only one wanting to comment on this ... phew!
I have absolutely no idea why I found this video so fascinating. I also don't understand the UA-cam algorithm and how the hell they knew I'd watch this entire video😂😂
I know I need to start learning my way around the shop, but I haven't been able to keep myself interested with other channels.
Your sense of humor makes learning fun.
Tony, your videos have transcended mere infotainment. You're next level. Keep it up
CSI This Old Tony... love it!
Noone:
Absolutely noone:
UA-cam Recommendations: here watch this video on injection molding of a PVC valve from 2 years ago
Me, who knows nothing about manufacturing and has never watched a video about anything like this at all: *watches entire thing and enjoys it*
Why would the video being a couple years old matter?
"Noone" lol
Loved that analysis. I keep learning. Thanks Tony.
you need to make more videos like this. This was awesome. I was absolutely enthralled!
12:43 wouldn't it have gone up only 0.010"?
Bro Beans , TOT knows better, he's just testing for the machinist viewer ratio...
I buy these for my garden irrigation projects where I live in Thailand, except here they are blue PVC. Maybe has something to do with Elvis. Maybe not. I usually pay about 18baht for the 1/2" valve. About 59 cents. A wonder of modern industrialization.
Man you know so many things...I can't stop watching your vids. You are a treasure of knowledge.
No matter how simple the video This Old Tony always makes it interesting. Always looking forward to the next video from the best UA-cam channel going GW
I was just going to bed... Well I guess I am not sleeping tonight.
Made those Valves here in Germany.....you are a little bit wrong.
You can see the different Letters on the side of the Valve ( E and D) those are different parts in different Molds/Tools. In the Factory there will be up to twenty machines and all they do all day long is producing one of those parts. One machine for Parts with the Letter A...another one with letter B and so on. The Letter tells you wich size of pipe will fit in the part. So Letter E means its for 1/2" on the intake side, and D is for the outgoing side. There is a small rim on the "E" that stopps the Valve Knob from making a wild 360 turn. So you have one machine per valve side and one machine thats produces the different knobs. Now comes the wonder of High frequency welding. Or like we call it in Germany. ...."Hochfrequenz Ultraschallschweißen" You place the first part in another machine, pipe side down in a special welding tool....a big massiv block of aluminum. the you place the central piece on top of this body. then comes the second Body part . You close the Welding machine and with the power of frequency you move the contacting surfaces of the parting line against each other. This generates enogth heat to melt the PVC on this line, and after a second the Welder presses the top part down so that the two halves become one.
So you can produce milions of different bodyparts on stock, and you can combine them in post production (The welding step) like it pleases you. 1/2" Inch to 1"? No problem. Swap one welding tool for the one you like, and you are good to go.
ua-cam.com/video/ddEnjwg1cF0/v-deo.html Here...have a short video were they weld an medical filter body.....Have fun and take a like ;)
Ordog213 . ua-cam.com/video/LfiRGJYjgMs/v-deo.html
What's your explanation for the injection gate that straddles the two halves?
Ultrasound welding would have left some extra material coming out at the parting line, hence there would have been witness marks of removing those from the valve on the video. Those are definitely a product of overmolding (insert molding).
Start watching the video again from 7:20 on. He talks about the possibilities and there are definitely valves glued or welded from two parts, but this one is molded as a single piece.
I am german and you are wrong are phrases often heard together.
As a manufacturing engineer very familiar with injection molding, this was all still new to me (I guess I hadn't paid enough attention to those little valves that I personally don't like - but now I've got a new appreciation for them, even if they seize up and are hard to open and close out the gate) and a thrill to watch so playfully presented.
This video was... genius.
Just stumbled upon this video. I was cracking up! Great job on keeping it interesting!
ToT version of how it’s made??? I’d watch it!
How did you slowly spin the valve? :)
My guess is filming it on Baby Right Round rotary table, then sprinkling it with a bit of magical editing pixie dust.
My guess: That yellow slow rotating welding table thing he build some time ago, with a axis going up through one of the holes in the table.
stop motion.
ajtrvll my guess: GENIUS
Vibration?
Well I started watching with a closed mind, now my eyes are wide open. By far the best ball valve video I've ever seen. Subscribed.
I learn something new everytime i watch this ol Tony..love it!
Jesus Tony, you must be very "not boring" at parties
I think you spelled "fun" wrong.
I knew AVE had to have been mass producible.
Excellent tutorial Tony, I work with a lot of injection molding machines (mainly controls applications / robotics) and it's always nice to learn more about the subject!
Just discovered this channel. Very informative and entertaining! Top notch