The ‘IMPOSSIBLE’ Polygon Lathe Cutter Mechanism!
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- Опубліковано 10 лют 2025
- In many cases, a processed piece on the lathe needs to have some shapes in some parts of it not cylindrical shapes that a conventional lathe cannot create. These shapes can be square, hexagons and generally polygons.
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You are 1of the rare i have seen and worked with 40 years ago.keep our heritage lights burning bright upon the tallest poles which is you.
Well done.
This is astounding!!! I am a machinist and a machine designer and if I didn't see this with my own eyes I wouldn't believe it possible to cut parallel flats in a lathe like this. What you have here is awesome. Beautiful job.
they're not flat, they're arc segments, though, probably close enough for a lot of purposes.
The Video was A.I. generated and you saw what you should have seen 😮
@@talis-silat ❓
That is a brilliant addition.
Thank you very much for your good comments Colin. We really appreciate it.
Hi, Colin! 🤘🤓👍
That is exactly what I was going to say! Well done.
@@MakeitExtreme de
My mind is blown
This is absolutely phenomenal, just the craftsmanship to make the tooling, and how it cuts one side at a time to make a hex, square....
I am simply amazed.
You sir, are an incredible machinist, tool maker, tradesman and craftsman..!!!👏
BTW....I've been in the electronics trade for 40+yrs, i now work for Electric boat and I've seen some serious metal workmanship, but, this is a feat of brilliance....I'm flabbergasted..!!!!
This is the perfect demonstration where UA-cam engenders innovation. I can't wait to see how projects evolve in the coming years. What a great time to live!
This is brilliant!
Thank you very much! :)
I've been in machining my entire life including 5 axis CNC lathe and mill starting out as a manual machinist and I've never heard of or seen anything like this
I literally just learned about this a week ago when titans of cnc had a short about it seen a different one from them today then five minutes later this video on how to make one pops up on my feed quite amazing tbh
I think the secret is that you don't really get flat sides, just an approximation. Even then you'd only get a good approximation at specific combinations of diameter and gear ratio. 19:36 is a good example.
Два месяца назад это уже сделали в России ua-cam.com/video/SffBNPlxHjo/v-deo.html&si=EnSIkaIECMiOmarE
Two months ago it was already done in Russia
@@sleepib by the looks of it running off the lead screw on a 1-1 gear ratio is the ticket but yeah it’s based off gear ratio cutting tool numbers tool length and diameter lots of little details to work out excellent for production work not so much for less than 100 parts
Its just magic for me. Its all I can say...
Take note This Old Tony … This is how you turn a cube (and many other polygons) on a lathe. By far one of the coolest things I’ve seen done ever, Well done!
It's a great concept if all you have available is a lathe. ToT uses either CNC to cut polygons or a dividing head on a mill to get precise flats on more important stuff. These all end up concave on the flats, which would probably be okay for most uses that don't require much torque.
@@uncletito8435 The geometry involved will always produce a slight curvature, it's a lot more exaggerated with the sharpie as you're seeing more of the arc outside of the intended synch with the part being marked. When it's machining a flat, all you're seeing is a small sector of that arc which makes it seem flatter. This could be improved by increasing the radius, and at some point you just have to ask yourself...how flat do those flats really need to be for the application? I mean, a cutting head with the radius of a planet would produce a cut flat enough that most metrologists wouldn't be able to measure without some extremely precise instruments, if that...but it's neither practical nor necessary. In some cases it might even be preferable to end up with a slight rebating of the flats, depending on the tool being used.
@@uncletito8435 It doesn't take fancy math, unless geometry is considered fancy I guess. The only time it won't end up curved with a machine like this is if you changed the relative speed of the cutter to the material as it moved around in an arc, allowing the cutter to traverse a longer dwell time in the beginning and end of the cut, and a shorter dwell time in the center. The radial movement will always end up cutting a concave surface given that they're both rotating at a fixed speed relative to each other. You can reduce the concavity with additional diameter, but no matter how large you make it there will still be concavity there. In concept it's like saying .0001" is the same as 0" because they're effectively the same and you can't visually see it. That may be true for a whole laundry list of applications, but it still doesn't change the fact that it's not 0"...not even .000000001" is equal to 0", even though it's not attainable by human beings except maybe in lab conditions, and probably not even then. A solid grasp of geometry would tell you this; you can't scale away a tolerance, it'll just get relatively smaller. You could get away with calling these surfaces effectively flat, IF the diameter of the cutter was sufficiently large enough, but it's not even close to large enough. If you took a finished surface and placed it on a surface plate, you'd see daylight in the center. Double or triple the diameter, you'd still see it. That daylight won't go away until you get out of diameters measured in inches and start getting into diameters measured in yards. Even then, that concavity will still be measurable.
I have never seen anyone put one of these on a manual machine and I’ve definitely never seen someone make their own. You are a legend! Also, that demo with the sharpies was the best explanation I have ever seen as to how these work, and you didn’t even say a single word. This is an awesome video!
Он своровал идею у другого блоггера.
I've been watching channels like this one for many many years, most of them mill their hex patterns, but this guy has stepped up and displayed pure genius! Excellent work!
This just brings back memories from forty years ago. An old machinist, tool die maker made this attachment for a lathe. I tip my hat to you "Make it Extreme." Job well done.
You have to remember, a lathe is the only machine that can reproduce itself.
i was manual machinist for many years and now i am retired but still enjoying seeing machining. the enjoyment of making parts and see the final product get in your blood .
DUDE!!! This is absolutely amazing! The thinking involved here and executing it so eloquently is a real treat to behold and my brain got bigger. You're the "Eddie VanHalen" of Machining. Just Wow!
And you don't know that "you're" is a contraction. You read/write/speak/hear the language every day and STUDIED it in school, but you just can't get it. No wonder you are "amazed." SMH
@@DiffEQ Not everyone has English as their first language.
@@MrTWOproductions WHAT!? Are you saying that other countries outside of USA has internet? 🤣
@@DiffEQ This is a Greek chanel, take your British colonialism somewhere else! 🤣
@@Henrik.Yngvesson Yes, here in the old world we even have Google Translate.
I’m no machinist but you are a genius! I love watching these videos because I missed my calling in life, my father was a machinist for 45 years. I still have all his hand tools and brown tool boxes. Great video.
I have to admit I didn’t know what you were doing until you demonstrated it. One of the most incredible things I’ve ever seen. Being that it’s this channel that’s saying a lot.
So I know I just watched you build the whole thing. Watched how it works and saw you using it, and my brain doesn't want to believe it. This is sick.
^^^ what he said.
I just said basically the same thing.
It's like when Penn and Teller show you how the trick is done, and they still leave you confounded...
Milling lathe?
By far, the coolest build I've seen this year.
Fantastic work, as always.
Thanks for sharing guys
I'm trying to understand the mathematics behind this! It's incredible!
I'm not even a machinist, but I can still see the amount of hardwork and genius into this beautiful mechanism.
Subscribed!
πρωτη φορα βλεπω κατι τετοιο, και εχω φαει πολλα βιβλια με πατεντες και εργαλεια τορνου. μπραβο
Michail wrote - courtesy Google Translate - first time I see something like this, and I have read many books with patents and lathe tools. Well done.
@@gyrogearloose1345 Thank you for your service.
ua-cam.com/video/SffBNPlxHjo/v-deo.html original
Absolutely incredible.
If I hit the lottery, I'm gonna hire you and pay you whatever you want to Mentor me.
You come up with the coolest stuff.
Honest.
Thanks. Eric in Kissimmee.
This is one of the coolest things I've seen you make!
I was thinking about that...
Agreed. I watched very carefully and still don't understand how it works. He's a freakin genius
Спасибо Евгению с канала Мехамозг.
Все же воспитанные такие. Поблагодарят всех, кроме тех, чью идею взяли.
Мехамозг взял эту инфу из литературы СССР. Он сам об этом говорил...
так у него там по ходу проще намного - всего две шестерни, и зубья эти он сделал не постоянные - можно убрать можно добавить, так у него там любое количество граней легко делается - здесь слишком заморочено
I had no idea what this was going to do until the markers taped to the cutter made their appearance, then it all clicked. Absolutely astounding work.
Never seen anything so cleverly assimilated. Way to go. My hope is that it inspires more out of the box thinking. We all need more of that, especially in these trying times. You're blessed to have access to a shop , enabling you to realize your dreams. And thank goodness you're not wasting it. God bless, and best wishes to more successful creations , and future. Don't stop there my friend, keep at it...
Ok that's the best lathe trick I've ever seen!
Check out Mehamozg on UA-cam. He's Russian so unless you speak Russian good luck but he did this a long time ago
Sei bravo complimenti per la tua intelligenza nel tuo campo lavorativo.
Geometry really is amazing, and your lathe addon can be an incredibly powerful tool- To say nothing of the time saved in switching between lathe and mill.
Wish I could get my favorite YT creators to see this (Cutting Edge Engineering [Australia]), this seems like something RIGHT up Kurtis' alley
You sir are absolutly a master with your machine.
There is nothing new here just look at all the attachments for the old WWII machines like Monarch,the crown jewel , the cincept is similar to attaching the indexing head to your mill to cut a scroll. Lots of math involved to get the right change gears and all. You know what I mean ,this sort of strategy was common before CNC spoiled us and took away some of our creative thoughts (IMHOP).
But what does amaze me Sir is that nobody commented on your skills with the machine.
I literally hit the floor watching one of the very few TOOL MAKERS on you tube. Loved the way on your finishing passes the hand champher you did there cant teach that to these youngsters and how you filed the top of the threads lightly and hit them with the file card NICE ! It's those little unnoticed tidbits I observed in your work that go unnoticed that are the difference between a true MASTER of there trade. I Hole heartedly applaud your work it was a pleasure watching some one who knows about the suttle little things that do matter in the end
From one Master to another that sir was the most incredible show of skill I have ever witnessed in a video. WELL DONE
🍻👊
Absolutely crazy work! If I had just 1% of your talent I'd be over the moon. Beautiful to watch, my type of poetry
This is complete synchronised madness cutting ! Wow. 👍
That is totally awesome! I’ve also been a machinist for 30 years, that took a lot of planning and engineering 👏👏
Congratulations, you are a very tricky and clever machinist, well done, BRAVO
A smaller diameter cutter cutting a decent size material with the 8 side profile could make some nice knobs with concave sides like you might see on control valves ;)
Seen this in other videos but great that you showed us how to do it. Thankyou. And now there should be over 1.9 million lathes around the world with this attachment
very neat lathe option, incredible work !
Maravilloso trabajo maestro bendiciones.
Wow, I've never seen anything like this. Congrats man
Хорошая работа! Сразу видно, что этот человек - мастер и отлично знает свое дело. К тому же, сочетание умения работать и думать радует глаз, как говорится : "такой не пропадет".👍 Сейчас новое поколение, тяжелее смартфона не хочет ничего поднимать или заниматься, старым, добрым физическим трудом😄. Но если все будут сидеть только за столами с ручками и ноутбуками, кто вот такие вещи будет мастерить, кто выращивать пищу или строить жильё.... 😕.Ещё раз моё почтение мастеру.👍
This is just insanely cool! I wish you were still doing your voice overs to get some insight into how you figure out this stuff, but like Ca Lem it is good to just watch masters at work. Your channel was the first I saw that made me want to learn machining! Best wishes for the holiday season
The best I've seen! So ingenious. Finally a talent that doesn't just like to hear himself talk. Very refreshing and very impressive! I can't afford a CNC. I want to see what's possible on my old lathe. Thank you!
WTAF? Mind blown! Just amazing, thanks for sharing.
ua-cam.com/video/SffBNPlxHjo/v-deo.html -. Original
@@Boris_Blade_Britva I think in this video he is using cardan, other dude using cvj.
El nivel de creatividad que desarrolla el cerebro en el ser humano es infinito, gracias por compartir ese ingenio tan brillante
You've truly outdone yourself this time; if it were up to me I'd be looking into the "patent pending" side of things just incase.
*Well done* concerning every aspect of this build and its design. Merry CHRISTmas as well.
Trying to even understand how this works hurts my brain, yet you just whip one up that works brilliantly. Awesome level of skill!
Sei un grande maestro...non finirai mai di stupire...👹👹👹...buon Natale a te famiglia e tutti i fans che ti seguono...
Bloody genius idea, I absolutely love it, bravo good sir 👏👏👏
What black magic is this! 😁👏👏👏
Perfect synchrony, congratulations engineer...!! Brazil
I am so glade to see you putting a PTO guard on that. One of the worst breakdowns I've had on our farm was from a wiring harness and hydraulic hoses somehow getting caught on a PTO and ripping out of the machine I was operating.(PTO stands for Power Take Off and is driven by the tractors engine. Considering the fact that some of those tractors can be over 100 horsepower...... need I say more?)
I would look at covering the universal joint as that is also somewhere that things could get caught.
You are an absolute genius. I have no idea how you figured this out or how it even works. You make this look so easy lol and i know it's extremely difficult. Well done buddy, I really enjoy watching you create these amazing tools and machines. Freakin incredible.
Brilliant, dude! Really fantastic work!!! 😃
Crazy what your machine can do!!!
Stay safe there with your family! 🖖😊
Merry Christmas and happy new year!
Два месяца назад это уже сделали в России ua-cam.com/video/SffBNPlxHjo/v-deo.html&si=EnSIkaIECMiOmarE
Two months ago it was already done in Russia
저도 선반기능공이지만 당신은 천재적이고 숙련된 장인입니다.
Awesome work guys. Euclid would be proud.
I am blown away by the sheer brilliance of your work and ability to come up with this. Truly awe inspiring.
That geometry makes my head hurt😂. Great video.
Смотрел как под гипнозом. Превеликое уважение тебе Человеку созидающему!.
The machining was good but the Engineering is Superb , You are Very Talented / and your Algebra s not bad neither ............
I would love to see this filmed with a high speed camera to better understand the mechanics of how this works. Incredible!
ditto
ياصديقي انا مصمم لكني افهم ماقمت بعمله بهذا المقطع لقد قمت بعمل جبار، انت رجل خارق بالفعل تهانينا ياصديقي عمل رائع. صديقك هاشم من اليمن👍
I am not a machinist but such a Lovely and finest job its very rare to seen.
É verdade torneiro tem muito agora criativo tem poucos
👍 agree 100%
and a nod to health safety too, all wall fitting guards, iven on the drive shaft thing, very well implemented work,
is the a new idea, or was it more making stand machine into up market one
anyway like video, no flash light, stuff, just the contents, that all that's needed?
we have used these tools in a cnc purchased from Phorn in germany which are a great addition to any shop with the production need.
This on the other hand is outstanding, The level of understanding is brilliant.
It’s one thing doing this easily in a cnc but to use your own hands and produce this on a manual is incredible.
This is an awesome addon for the lathe! Should be a new standard attachment!
Μπράβο!!! μεγάλε μάστορα, τι ωραία πατέντα έφτιαξες, τι ωραία εργαλεία έκανες, very very good Bravo!!!
To remove the need to check for progress every now and then, make a strobe light syncked to chuck rpm. The piece being procecced will seem to be stationary during operation.
Genius!
48 years as a machinist and toolmaker and I am amazed! Genius thinking!
What kind of sorcery is this........ this guy is amazing
Check out Mehamozg on UA-cam. He's Russian so unless you speak Russian good luck but he did this a long time ago
I spent the first 90% of this vid totally confused. Then spent the last 10% of this vid totally blown away.
Absolutely awesome!!!🤩 Great job, Dude!
I like the nail you used when drill pressing the metal plate to keep it from sling shooting. There are too many youtubers I've seen that use a drill press and either don't clamp their piece down or use something like a screw to keep it from moving.
On the channel of the Russian blogger "Мехамозг" there was a more detailed video about this method of machining. Moreover, he carved a full-fledged dagger with this method.
author of the idea " Mehamozg " stolen idea....
I am from Brazil .....parabens....congratulations....its brilhant ...wonderfulll
Magic pure Magic.
I used machines that used this principle in the late 80's when I was an apprentice at Desoutters, they were used to make planetary gears for air tools, they are nothing new. Love how people post videos not using coolant, not marking out properly, no deburring, no-one seems to measure anything....
I've always thought I had above average spatial reasoning, but I had to slow this video down and watch it a few times to wrap my head around the geometry 😅
The shapes machined by this process are not flat. They have a slight curve. The original idea behind this process is that these are flats to apply a spanner.
This man deserves a Nobel Prize for his skills and craftsmanship!
Он всего лишь своровал идею у другого блоггера.
except, he did not invented this at all, this si common attachement on machines from the beginning of 20th century and most likely way before.
Hadn't even considered this could be done. Outstanding, much respect!! Question is could you build a cutting head that would cut polyganol holes instead of using a broach? Thank you for sharing this and your amazing talents, your tig work is superb!
I am impressed with this person's skills and ability to design this. Amazing.
Два месяца назад это уже сделали в России ua-cam.com/video/SffBNPlxHjo/v-deo.html&si=EnSIkaIECMiOmarE
Two months ago it was already done in Russia
You made me want to buy a lathe machine !!!
Okay... I know I'm not the sharpest tool in the box but that's just caused me a whole lot of questions, the biggest one is 'how?'. I'm not a machinist but looking at the way the lathe.... got it.... I think. The lathe's running in reverse so the part feed runs clockwise against the cutter running anticlockwise. With the tool offset by x amount the cutter only contacts the part for a portion of it's rotation with a 1:1 ratio. I think....
Very cool, seriously interesting. I've not had my brain so focussed on something for a long time. And I still might be wrong.... instant sub from me. Your awesome
Absolutely wonderful
Два месяца назад это уже сделали в России ua-cam.com/video/SffBNPlxHjo/v-deo.html&si=EnSIkaIECMiOmarE
Two months ago it was already done in Russia
DANG! If anybody had told me "watch me extract a polygon out of a round RIGHT at the late chuck!" I would have responded with a "No frigging way! IMPOSSIBLE!!!!" Glad to have seen this first here so I don't look like an idiot... Simply amazing!
For most of the video I was thinking why would you want the cutter spinning the same speed as the part. This was amazing after I saw how it works! It’s too bad you basically need a whole machine shop to make the tool instead of just the lathe (which is all I have)
This tool is amazing, dont get me wrong, but you can just use a mill to square or hex cut with much cheaper tooling.
@@jwljwljwwwwl but would this be cheaper than buying a mill… I only have a lathe
Mehamozg makes it on a lathe only... Go check his channel
Edit: you'll need to turn on subtitles
@@1259bogs I think it was @InheritanceMachining who said: "a lathe is just a mill tipped over"
@@benjaminwetter3285 I’ve seen some of his vids, and yes that is true. I would have to make a milling attachment though (not saying I won’t) because buying one for my lathe is too expensive
Seriously dude, you are a master ! This only comes from a deep understanding of how a lathe works… truly amazing work !!
Magnifique travail -
Amazing work. I thought it was going to be a clock! The geometry is mind bending. So now we need a video about how you set up the gear train/gearbox and calculate the size of cutter relative to the size of the polygon.
I concur with the comments of the other engineers here. This is a very clever piece of engineering. Being academically clever is one thing, as is being highly skilled practically, it's when the two are combined that extraordinary achievements are realised.
Superb video.👋❤
lol, he did not invetned this, these tricks are very ol and such attachement was common on lathes of ht e40's and even before.
There was such a device on the Mehamozg channel earlier. ua-cam.com/video/SffBNPlxHjo/v-deo.html This version is also very functional and technologically advanced.
Вот сиди и гадай кто у кого украл
К сожалению применение кардана было ошибкой, из-за неравномерности движения.
@@АлександрМикляев-ж6ч для выравнивания скоростей ставят две крестовины. Они работают в противофазе и получается равные угловые скорости.
@@Satana_inc ну очевидно кто раньше выложил тот и автор , а тот кто позже вор
Ладно бы ссылку закрепил , нет в этом ничего такого все у друг друга воруют идеи разница лишь в исполнении.
@@Satana_inc по дате выкладки видоса очевидно. Хотя может оба украли у какого нибудь азиатского токаря.
Some people are much ingenious than other. Thanks for this incredible manufacturing process.
Is this able to do multiple sizes of each shape by varying the offset or do you need different sized cutting bits?
there's a range that you can do with each cutter, depending how flat you need the flats, larger and smaller sizes with make concave or convex but in many cases is still more than fine for a wrench. you could also have attachments for making internal and external splines. or even a gear hobbing tool, those require more tooling selection for different sizes. i do stuff like this with live tooling on a cnc lathe.
I am not a machinest but I have taken a few machine shop classes over the years so I kind of understand what is going on. First you removed the timing pulley and replaced it by a gear driven transmission (nicely done esp the plexi safety guard. You use this to drive a rotating cutter head that you fabricated. Then you created a series of devices that drive the cutter in such a way as to create a variety of hex configurations. In essence you turned the lathe into an mill that allows you to mill all the flats, all at once as long as you have the right hex tool in the drive shaft. Impressive. How close am I machinsts out there. I am a big fan of the CEE YT channel of Kurtis in Aus. Now I have to subscribe to this one as well.
So other machinists just joke that they don't have their square endmills on hand to machine square holes, and you go and do it?
Also, can you use this (or similiar) method to create square holes too?
Yes a planetary gear set can do polygonal holes. Its nothing new to be honest.
nah sadly a round cutter can cut an outside square, because when it moves linearly, it makes a linear cut. But internally the minimum "corner radius" will always be based on the diameter of the cutter. You have make a round hole then broach it or scrape it to shape. No other way around it. However, there ARE techniques for cutting odd shaped holes, and a custom square endmill might actually do this... Like a trilobe hole maker...
@@dimitar4y one machinist pointed out another method is using EDM to create sharp inside corners.
@@Sara-L he's asking for a lathe method, doofus.
@@dimitar4y Please be civil.
I always thought it is not possible to do such polygon cuts on lathe... that too all sorts like 4s, 5s, 6s and even Octa...!!! I watched the video without understanding anything much but totally awestruck with your work...!!! Amazing work.
Out of curiosity, do you consider yourself a fabricator, engineer or even both?
None of the above
Metal Wizard, pretty sure that would be the title, this build was pretty amazing
An artist.
''metal whisperer''
... úžasné Meister👏👏, jako bývalý strojař jsem nadšený vašimi skvělými nápady👍. Zdravím z Czech Republic 🙋
Ооо, кто то спёр идею с русского канала мехамозг
Ooo, someone stole the idea from the Russian channel mekhamozg
Ideas are cheap, implementations are precious
@@blacklion79 ua-cam.com/video/SffBNPlxHjo/v-deo.html
@@blacklion79 yes, my respects to the author for his work, but he could have left a link to the mekhamozg channel, this video was released there a long time ago
@@Liutov There are A TON information about polygonal turning / cutting on lathe, including some rather old engineering / methal working books (and short article in wikipedia). Are you sure, authors got this idea from referenced channel, and that authors know about this Russian channel at all?!
@@Boltondlt ua-cam.com/video/ykB6VsFC_cA/v-deo.html
ua-cam.com/video/hmco8mI79gc/v-deo.html
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So what?
I used a polygon box driven off of the tool post.
It used wheels that touched the o/d to drive the thing, and the cutting tool moved towards the o/d and back again.
Exactly the same result.
Round bar made into hexagon.
It was a very clever design.
Ruston Gas Turbines Lincoln, is where I was trained.
Back in the 1970s, so it's nothing new.
Your version I've never seen before., but very clever.
@Mehamozg
ua-cam.com/video/SffBNPlxHjo/v-deo.html
Das ist absolut unglaublich was du herstellst.
Respekt
This is by far the coolest thing I’ve seen this week.