Marvels of Injection Molding!

[@colinfurze]

Brilliant content old Tony, as a former plumber I found this amusing. Top work as usual.

[@ThisOldTony]

+colinfurze was literally just watching your tie fighter build! I mean... it's no PVC valve... but not too shabby. ;)

[@texasdeeslinglead2401]

Love your videos , Colin. One crazy plumber to another

[@FALpwn]

My two favourite uncle's in one comment.

[@tanmaypanadi1414]

I hope you guys help out Alex the French guy with some of your metal work magic

[@c0nstantin86]

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

[@slackjaw703]

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.

[@pigtailsboy]

You can see the evil peaking through in the video where his son is wired into the DIY CNC router.

[@bhatkat]

But isn't it made of that evil plastic?

[@volvok7749]

You mean that the egg came first and then they injected the chiken around it?

[@brutongaster8184]

+

[@roberthousedorfii1743]

ha, but actually, the chicken embryo grows the shell around itself...

[@yasmanygutierrez9655]

genius

[@Armuotas]

What bugs me is the combination of words "injected" and "around". We need something like "exjected".

[@alberth1925]

@@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.

[@turtledoo4746]

This is the best plastic valve video that will ever be made.

[@TheFeller1554]

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 KZbinrs!

[@muskokamike127]

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).

[@JaakkoF]

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.

[@muskokamike127]

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......

[@TiagooFerreira]

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) .

[@nativerebel3718]

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

[@baconismyrealalias5406]

Are we just going to ignore how it was spinning by itself at 0:30

[@blaze6210]

Yeah pretty much

[@Shasha_Mynx]

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]

Stop motion

[@Shasha_Mynx]

@@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

[@pibegonzalez]

Perhaps the bench was vibrating

[@therealstubot]

"Well I'm no plastic surgeon..." - Best line evar.

[@BigHeretic]

I missed that! Doh!

[@sander282828]

you could say it was ....... genious.

[@Niels_kist]

9:53 after hearing that line I had to take a look at the comments. Indeed the best line ever xD

[@katjoe1974]

“The patient died, but the operation was a success”

[@ryanmacs2486]

Yes got a solid chuckle

[@Surestick88]

Was that the AvE logo that popped out of the example mold near the beginning?

[@ryanchapman2636]

Surestick88 2:57 well spotted

[@breadbutt]

I saw that too. had to rewind to make sure that's what it was.

[@AnjDominick]

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.

[@JerenKanava]

lol mee too

[@johnybent21]

I'm am a tool and die maker by trade. It nice to see someone appreciate the trade . Great video 🖒

[@tek4]

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

[@iwantitpaintedblack]

and i am a Tool and Die apprentice in Germany in my 3rd year, a world where 0.1mm is way too much

[@cameronknowles6267]

Jeff Petersen yeah you should do how to videos in your free time I’m sure many people especially me would appreciate it

[@anullhandle]

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.

[@alexreeve]

how do you say in germany tenths of mm are for woodworkers, hundreds are for metal ;)

[@jorgepiresjunior]

I imagine this was assembled in brazil and the letters E and D stands for esquerda and direita ( left and right). 😂

[@Edward_John]

Yeah, that was my valve. You owe me a valve. Ed

[@tonyus8197]

I suppose you are not open for suggestions...

[@smickandily]

kzbin.info/www/bejne/f5qqhZ6iacuGrpY

[@ryanmickelwait1521]

@@smickandily you can just type 4:11

[@AbsorberofLight]

The patient died, but the operation was a success! Subd

[@SteveisTall]

I really liked this vid Tony. A series on explaining clever everyday items would make me happy :-)

[@timumbach3754]

Me too

[@ThisOldTony]

Steve James I'll keep my eyes peeled!

[@belg4mit]

In the mean time, you might want to check Engineer Guy.

[@PatrickPease]

Or how its made

[@RylanStorm]

You could call it "How it's made"

[@yashphirke3609]

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

[@timothythompson3029]

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.

[@davejohnson385]

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. ❤️

you actually showed the cutting in the video... the fame has changed you...

[@marccrocker1908]

Michal Kubrický: DIY to be fair he did do that operation gag

[@freespam9236]

all for the plastic surgeon joke

[@FrancisoDoncona]

A bit of doubleboost

[@samykamkar]

Your vids are great. Learning cool stuff and you make me laugh!

[@climbr12212]

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

[@spehropefhany]

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).

[@randomweirdo2701]

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

[@Philip8888888]

I'm not sure why I watched this through a year ago. And even less sure why I just watched it all again today!

[@maximthemagnificent]

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.

[@TestarossaF110]

same but 6 months later

[@YouTubeSupportTeams]

Because its *GENIUS!*

[@AfdhalAtiffTan]

This is like AvE but with an intelligible explanation. Thank you for the video!

[@timothyball3144]

Yes. This Old Tony's version of a BOLTR. He did pay homage when demonstrating the mold.

[@jameswyatt1304]

And safe to post where kiddos like scouts and students can see it w/o their parents being upset.

[@jzapien1377]

You just don’t speak what ever language it is ave speaks. I think it somewhere between southern mumble and deep north Canadian

[@jefffung8679]

I imagine this was assembled in brazil and the letters E and D stands for esquerda and direita ( left and right). 😂

[@rogerdeane3608]

And NO profanities.

[@AnthonyGriz]

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!

[@WeTrudgeOn]

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.

[@RobertSeviour1]

"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!

[@c01n69]

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 =]

[@sirtomodon]

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.

[@bigchieftomato]

"i've bondoed, sanded and primered and repainted all of my water valves...." hahhaahhahahahahahhaha

[@Lmiller201]

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

[@asherdie]

The invisible rotating display table was amazing, could stare at it for minutes.

[@volvok7749]

I found it terrifying...

[@asherdie]

Azureus Rising lol

[@dralexmclean]

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!

[@eddievanhorn5497]

Humans 2 million years in the future; evolved ejector pins in the roof of their mouth.

[@brendanstanford5612]

Eddie Van Horn. You have an interesting brain to have envisioned that

[@garbleduser]

Milk. Its the perfect solvent for peanut butter.

[@danmackintosh6325]

I find hot blackcurrant juice the preferred solvent. But only because Trichloroethene is no longer readily available (and tastes disgusting).

[@randomweirdo2701]

Imagine what that would do to the porn industry.

[@MinibossMakaque]

Are adult teeth just ejector pins for baby teeth?

[@mikeking7470]

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.

[@pretendingpro]

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.

[@dimitar4y]

go watch How it's Made, then.

[@anullhandle]

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.

[@pretendingpro]

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.

[@caseymyers1770]

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

[@EdM66410]

Hey Tony, how the hell did my ball valve end up in your shop?

[@JASPACB750RR]

Ed M kiss it goodbye my friend. He hacked it all up. R.I.P Ed’s ball valve

[@RCP-1136]

The joining line is purposefully visible, its not a defect. When the heated plastic is shot into the cavity it needs to displace the air. To enable the volume of air to evacuate there is a small gap between the two molds. Because the plastic and the air have very different viscosities, the air is able to flow through that small gap, while the plastic is not. What is amazing to me, because the plastic is shot into the cavity under a pressure of up to 1500bar

[@edwarddoernberg3428]

he cut my valve in half!!!

[@quasistoic-all-in]

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!

[@alexskis3296]

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.

[@iwantitpaintedblack]

damn those things would cost like a 100,000$

[@alexskis3296]

from my understanding 7 figures is more accurate

[@krzysztofukawski2348]

For 100,000$ you might not get one simple mold made from tool steel.

[@BaldurNorddahl]

Simple molds are about $1500 at Protolabs: www.protolabs.com/services/injection-molding/

[@spehropefhany]

@@krzysztofukawski2348 Probably $25,000 in China from P20.

[@traktorworks3200]

the only genius wasnt only the people who designed the valve but also the person who made and presented this video. a really excellent vid. so many thanks

[@MrKenkron]

12:40 - Moved up about 10, not 20. 20 would have made it 180, 220.

[@pieman12345678987654]

Thought that too, 20 thou is a fair amount of deflecton 10 sounds more reasonable

[@PKhanz]

Yeah same here, .010 would've made both sides .200

[@55yxalaG]

Isn't the inner side of PVC fittings tapered tho? As in, if he put the caliper in further, it would read higher?

[@ueehurstonsecurity8887]

tony is more funny than 98% of the channels that are out there to make you laugh. and that last 2% are just on par with him. i get more laughs watching this than actual blatant comedy skit/oriented shows/channels. Tony, your sense of humor hits home with me. i love it. that and im 26 and learning that i dont know shit about anything. i thought since i was a mechanic working on cars i knew a thing or two. but watching your channel has taught me i'm still a baby bird of the mechanical world. and by baby bird i mean an egg, but maybe the beak has made it through the shell, just kinda poking out. but every time it pokes out it says shit like "im a mechanic" so people think i know what i'm doing

[@RileyKnifeandTool]

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.)

[@PunakiviAddikti]

The amount of engineering that went into making a cheap as dirt ball valve is impressive. For how cheap this valve is, so many things have to come together perfectly for it to work. It's amazing.

[@pallendo]

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.

[@fdfpi47]

kzbin.info/www/bejne/gpfMg3qAjs-ag9U 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.

[@russellstarr9111]

fdfoxter The only difference there was TOT's ball valve was made with a hot runner and your video showed a cold runner.

[@tarlach1280x960]

I worked in the metal diecasting field for many years in my youth. That all came back to me watching this video. We also had some parts that had inserts that we put into the die so as to become one part when cast. And the part of the die that held the inserts were called cores. Sometimes the part required cores not inline perpendicular to the parting line and those required a moving core that would be put into place using its own hydraulic cylinder after the diet closed.

[@thedrunkenpilot]

Love watching AvE take stuff apart. Now This Old Tony is taking stuff apart too? KZbin just got better.

[@royreynolds108]

The thing is AvE usually puts them back together to show them work. This is missing some material now.

[@petederksen9300]

The only reason I’m reading comments is to see if anyone else would would notice the AvE reference

[@mastorroel]

@@petederksen9300 the moulding example right?

[@geyotepilkington2892]

@@petederksen9300 Yeah I was like wait a second that logo looks familiar!

[@robertmjr7996]

@@petederksen9300 dido that.

[@zigeuner5023]

"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.

[@kemcSLO]

Nice to see you talking about my everyday job. Just a interesting fact ruberised handle is injected in one mould in one operation ;)

[@bobs12andahalf2]

I been trying to get my head round how that works. No success so far.

[@anullhandle]

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..

[@markregler2164]

I absolutely love your narrative style! Clear, concise and with a healthy portion of comedy to boot. Thanks for the fantastic entertainment

[@EdIvory]

I’ve been looking for that valve!

[@Hexlattice]

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.

[@bobs12andahalf2]

The different angle makes all the difference.

[@Guds777]

at least 10 degree difference.

[@Culturedropout]

That's what *she* said...

[@MrNorthstar50]

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.

[@cybrdave]

The way you defined the number 5 left a hand shaped mark on my knee.

[@HotelPapa100]

Telling what it REALLY says would have been nice, though.

[@Kolajer]

For me it was a burning question since that job at the warehouse with all those valves and fittings where I used to work. Thank you so much, Tony!

[@GeneraleRus]

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!

[@JarredRandom]

At the injection mold factory I work at we also use aluminum for the motorcycle and bicycle grips. Everything else we use p10.

[@Mackinstyle]

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."

[@DanielMFG]

Please make more of this kind of video! Its really interesting and i got some cool ideas for projects / solutions from it... thx

[@davidpetersonharvey]

I'm redoing all the pipes in my house after the freeze here in Texas where we had no power for three days. Totally destroyed my pipes. Anyway, saw this video from 2017 and now I have some cool things to share with my wife. She's Canadian and views a trip to the hardware store as a hot date, so thanks for making my love life even better.

[@saiskanda]

You should watch the engineer guy video on injection moulding too 👌👌

[@matthewkriebel7342]

Sai Skanda seconded. Is that the one where he shows how well Lego is made?

[@seansvid]

I love this stuff! The engineering involved in making a part work well, and cost so little, is amazing.

[@charnoldbronsonegger53]

1:38 "How in the H E double canadian hockey stick..." 😂😂😂

[@abbyh5158]

Most injection molding content on KZbin relates to simple obvious molds, like the axe-head packaging. Thank you for showing something more complex and amazing.

[@pseudonomen1377]

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)

[@kentnothstine]

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.

[@pseudonomen1377]

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... ;-)

[@chrischaput]

I had to scroll down a million posts to make sure I wasn't the only one wanting to comment on this ... phew!

[@GerardHammond]

Fantastic! Fantastic explanation and timing. I followed along, wasn't swamped with extraneous details and learnt a lot. Thanks!

[@billbyrd9845]

A masterpiece of editing, especially the AvE part!

[@ExMachinaEngineering]

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!!!

[@ajtrvll]

How did you slowly spin the valve? :)

[@pepsin92]

My guess is filming it on Baby Right Round rotary table, then sprinkling it with a bit of magical editing pixie dust.

[@jangoofy]

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.

[@Guds777]

stop motion.

[@ToasterWithFur]

ajtrvll my guess: GENIUS

[@FlintF]

Vibration?

[@bpetnoi1472]

Please don't take this wrong. I do so enjoy an "intelligent" smart ass. Your informed dry wit makes me chuckle so often I must remember to make regular visits to the bathroom less I have an embarrassing accident at my age.

[@masterofnone]

Genius!

[@skeetchildress9232]

your editing and camera work is consistently imaginative. wonderfully done sir.

[@MegaScott]

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.

[@thromboid]

The injection-moulded parts on Dyson vacuum cleaners are fascinating to look at - the metallic-looking additives allow you to see the flow and weld lines quite well.

[@michealshelton2133]

I have absolutely no idea why I found this video so fascinating. I also don't understand the KZbin algorithm and how the hell they knew I'd watch this entire video😂😂

[@tcmtech7515]

A buddy of mine has a big scrap yard and gets the old injection molding machines from a few big name manufacturers in our area. They are absolutely huge despite the often small parts they make. I helped cut one up last summer that made parts the size of a popcan and the machine itself was 25 feet long and weighed about 20 - 25 tons!

[@leozendo3500]

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.

[@JNCressey]

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.

[@Robert-xp4ii]

I'm seriously impressed with that valve! As hot as the pvc is when injected, I can't believe it didn't try to melt the ball and, more surprisingly, the seals! Wild!

[@absalomdraconis]

I bet there were a _lot_ of failed tests before they got those to not melt too.

[@ajtrvll]

CSI This Old Tony... love it!

[@archvile4234]

I've spent some significant time working in a shop that makes injection molds, and repairs/services them, and the mold that made a valve like that would likely have tolerances big enough to chuck a cat through. However, in a shop like I worked in, where we mostly work on mold for the medical industry, our tolerances for critical components in the mold are + or - 2 tent-thousandths of an inch, sometimes, only + 2 tenths, a range of only .0002 inches! The precision that an injection mold can achieve is astounding, and the work that goes into making them is too. love the videos man, keep it up!

[@dipusone]

I must re-watch this video at a slightly different angle...

[@martineastburn3679]

Some molds are very simple and some are very complex indeed. Bottles - inject resin, rotate, cogitate, blow air in and then Freon. Viola bottle. Then there are those with holes and 4 dimensions... I think some of the fancy ones are Engine blocks and maybe calculators... Thank for the dissection!

[@3zuli]

We've got ourselves a BOLTR right here

[@clendi2002]

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 KZbinrs, keep up the fantastical work.

[@BroBeans1]

12:43 wouldn't it have gone up only 0.010"?

[@Jifke422]

Bro Beans , TOT knows better, he's just testing for the machinist viewer ratio...

[@AlwaysHopeful87]

Used to work in the mold making and die casting business up around Erie, PA years ago. Go laid off and never went back. Loved the work, miss it in some ways. Can live vicariously watching your vids. Thanks.

[@zacharylohner]

Noone: Absolutely noone: KZbin 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*

[@russell2952]

Why would the video being a couple years old matter?

[@svtirefire]

"Noone" lol

[@daveat191]

Super informative. Two things: molds are made oversize to allow for the shrink of hot mat'l., the ball moved .010 from injection pressure. But you are right in that it is a under rated marvel.

[@JohnDoe_toetag]

Poor fingernails. Ever think about letting just one grow to full adulthood?

[@Highstranger951]

John Doe haha! I don’t understand it either

[@PatrickPease]

His nails match his face, but his voice does not.

[@waynebrinker8095]

You three....John, Highstranger, and Patrick, are right to comment about the absolute importance of his manicure. There's no doubt, you're all perfect....... .....PERFECT ASSHOLES.

[@michaeltichael]

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.

[@Ottmar555]

Fantastic video as usual

[@teixeiradasilva6299]

This was a perfect dissection of a valve, what a beautiful work.

[@staticivi]

ToT version of how it’s made??? I’d watch it!

[@andreww371]

Seal, bullet proof, got a good laugh out of me. Very good videos, keep up the great work. We need the younger generations to get educated in manufacturing and trades.

[@sanho1988]

Jesus Tony, you must be very "not boring" at parties

[@usnamunav]

I think you spelled "fun" wrong.

[@mariomaqueda5135]

Great comprehension of molds and how they work. That is refreshing. You just got a new subscriber!!

[@ThisOldTony]

thanks! and welcome!

[@matthewcarwile9235]

I knew AVE had to have been mass producible.

[@springwoodcottage4248]

Interesting & useful. I once was shown a hand powered injection moulding machine fed by spheres of plastic. It was amazing to see it work & it made me appreciate why the injection mounds were so expensive. Presumably now they can be cranked out by cnc, or maybe 3D printed using some kind of laser melter of sprayed metal like Space-X use for some of their high temperature engine exhaust nozzels. Remarkable that all of this leads to high quality stuff at super low prices that make modern civilisation possible. Thank you for sharing!

[@hesnotbad9045]

The core would have shifted .010, not .020

[@dr1verman]

I had wondered about these valves before, but it never entered my head that the ball might not be spherical. A good video.