The Antikythera Mechanism Episode 9 - Making The Epicyclic Pin and Slot Gearing

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This Old Tony : you and this diabolic gizmo keep blowing my mind. what next, it runs Crysis? ;)

Clickspring : The first good look at a decent section of the mechanism in operation folks, please enjoy :)

Bobby Duke Arts : Therapy..........thank you

Thomas : I'm not convinced you're not a time traveler. Clock maker takes antikythera device back in time and drops it in the ocean, then returns to the current to show us how he built it 🤔. Amazing work as always, thanks for sharing!

Harald Hofer : Superb filming, superb editing and incredible skills as a maker. Thank you so much for sharing. Now I want to build a very simple watch myself... 😉

Rainbow Hyphen : Everything about this is so incredibly amazing - from the gulf of unknown history this device reveals, to the x-ray technology that let us see inside it, to your painstaking reconstruction, and the fact that we all get to watch it on unfold online. For once, I don't care that we were born too late to explore the world and too early to explore the stars. There's still so much left to explore.

Rapidpanda1st : As soon as I see the words 'Antikythera' in my subscription box, my nostrils fill with the pungent smells of WD-40 and leather. My ears twitch to the smooth sound of filed brass. My pupils dilate and I enter into a completely different world. A timeless trance of precision and satisfaction. Thank you for opening this portal, Chris.

Benjamin Meijer : Oh my god that transition at 11:59 Is there _anything_ this channel _doesn't_ do perfectly??

Michael Cugley : What I find so fascinating is that, like you say, this represents an entire tradition of mechanical engineering. And before we dragged the Ankikythera Mechanism from that wreckage we had *no* idea it existed! You wonder just how much we *still* don't know!

Alan Eiseman : I’m a computer engineer, these mechanical devices fascinate me.

alex akkers : Wuao! That eccentric gear is definitely one step beyond in complexity. You prove us how we tend to underestimate the capabilities of ancient technologies

Brian Walk : i dont even have the words compliment you on your phenominal craftsmanship. well done, sir!

Larry Ogden : I really enjoy this series, I just hope there’s not a test at the end. :)

John Newbury : There’s a good chance when this magnificent build is completed that Chris will be considered one of the worlds experts on this device. And rightly so- not just building it but trying to use tools which may have existed at the time. Amazing talent mate.

Pablo Martínez Díaz : Every time I see what this guy does, I feel I am dumb. Then I realize that the original device was done a gazillion years ago, and I go back to bed.

vitanksi : Those fingernails…. Reminds me of someone. Are you using This Old Tony as a hand model to hide your true identity?

AtheosPhyve : I occasionally hear other channels reference yours when it comes to fine craftsmanship and detail ... it makes me smile and nod in agreement every single time. Beautiful work as always!

Henry Mullett : Clicked like before the ad finished

fillg : After hearing the rhythm of 4 you tap out at 4:26 and several other times during this video, I'm more convinced now than ever that you're a TimeLord and that's how you can understand and make this machine. Hopefully you're a fan of Doctor Who and The Master and you'll understand what I mean.

Don Durand : By far the best Channel on YouTube in every conceivable imagination. Thank you

jdfrog1 : Sir you are one of the greatest examples of patience,high I.Q. and next level knowledge, i am allaways amazed by you, thank you for recreating one of the most known ancient treasures of my country.

Troy Graham : Brilliant work yet again. Not sure why you dont have 8 million subs yet.

JT Lowry : I've been rewatching these, you can really see your decent into madness, started using the mill and all your tools and now you've made your own files and drill, I half expect you to slaughter your own cow the next time you need leather

Roger Crier : Very humbling. The only place I have seen that ahead and behind rotation shift is in the prop shaft joints on automobiles. When angled, a single joint displays this phenomena, making the prop shaft rotation go ahead and behind the gearbox output, so you need to use two joints at the same angle so this is cancelled out, giving back the constant velocity to the drive train. Front wheel drive cars have a special joint that has to contend with both suspension and steering angles at the same time and guess what it is called! A constant velocity joint 👍 patented by Alfred Rzeppa from Poland.

D4N1CU5 : Have any researchers that work on the actual artifact seen this series and/or expressed an opinion on it? This is some pretty sleek practical archaeology right here and I find it hard to believe there haven't been some new insights generated from your work.

bullwhip johnson : I look forward to your videos. They have a reassuring and calming effect. That's required in modern times.

cq33xx : this is the most fantastic aspect of the machine in my opinion, too hard to imagine a mechanic representation of the variable motion of the moon, brilliant

Peter Leonard : You never cease to amaze me with the precision you achieve with hand tools at such a minute scale. Not only that, but the explanation of the purposes of each piece, demonstrate an amazing knowledge of astronomical data. I can hardly wait for this to be finished.

Acrimonious Mirth : It’s so beautiful that my eyes leaked a bit.

BlueFrostedGlass : I wonder if a larger version of this mechanism existed in a town somewhere? Maybe something like a large clock for a City or Town? You wouldn’t need the travel information anymore - So it might be simpler?

Ernie Wells : Chris, I must say, being a machinist myself, I am completely amazed at your in-depth understanding of this mechanism and simply beautiful craftsmanship you are capable of with the tools you have fabricated for this very device. Thank you for letting us be a part of this.

Not Dave : The ancient greeks were incredibly advanced for thier time.

warpspeed : Besides the topnotch work...i am AMAZED at the details of this mechanism. I can't comprehend how the ancient Greeks knew astronomy and mechanics in such depth!

Mike from Last night : Not just clock making or satisfying part milling but an entirely new level of hand crafting almost lost to time craftsmanship. Keep up the great work! Humanity stands to learn so much from what we have achieved and what we have yet to learn from this device and the exceptional way you hand craft and explain its recreation.

Seth Starrett : I always love when clicksping videos come out, but this series even more so. This is where art, history, mathematics, and design all intersect, and are beautifully documented.

Scarlet Light : Oh YEAHHH! My most looked forward to videos on YT. Machine porn!

Jume Mowery : Amazing! Both you and the Ancients!

rimmersbryggeri : Do you think they could have had square broaches? These were smart guys and with the amount of square holes in a build like this and the suggestion floating around that there might have been more than one of these units floating around I think they could have come up with the concept just to make life a little easier.

pjsalchemy : Think this episode broke the internet, second attempt at a comment, but its ok I watched it twice. Gobsmacked and Drop-Jawed with exclamations of, Ohh My! That animation you did with the Epicyclic Pin and the precession ellipses was off my charts! Am curious how the brilliant ancients and you came up with the perfect offset for the pin to mimic the precession? You have bridged that gap between Videography and Cinematography and I agree with Mike Lawrence below about DVDs or at least a 2 hour special on Nova with an Emmy or Oscar! Thank You for *all* the work you put into the videos and the project, Chris! Truly a masterpiece episode!

FunKey MonKey : Absolutely stunning craftsmanship mate 👍😍😍😍 I have been watching this series from the start, which has been a tremendous and yet tedious project. Hard work really pays off. Cheer's for sharing Chris ✌😊🍺 I don't see why anyone would give this a thumbs down!?

Timothy Paulson : I truly do have a man crush now. Amazing craftsmanship sir.

IIllIIllIIll : brilliant cut at 12:02

Helena Of Detroit : From looking at the design and the way it's made so far, I get the feeling that the ancient Greeks didn't have a separation between engineer and machinist. The two occupations may have been considered one back then. This is an idea I hope future generations will accept, as it would save a lot of people a lot of time and money if the blueprint makers were also on the shop floor. Just a thought

DjjC13 : I hope this ends up in a museum somewhere. I would travel anywhere to be able to turn the handle. You sir are not a machinist, you are an artist of the highest regard.

1959Berre : This video clearly shows how skilled and intelligent people were more than 2000 years ago and probably even much earlier, unlike the losers who gave it a thumbs down.

D Beezeree : Amazing work. At first I was confused about your use of old and new tools, but ultimately it doesn't matter. The piece is outrageously complex and amazing!

Joe Pieczynski : Chris, can you share your secret for keeping the parts from tarnishing. I'm neck deep in a brass cannon project and I'd really like to keep the shine.

TrainWreck : As always, this video, like all of your others, is mesmerizing and astonishing. The amount of craftsmanship and effort you've put into this so far can't be matched by many other hobbiests or enthusiasts. This is truly a great work of art. I look forward to seeing the rest of this series and hope for many more like it.

Ian Stradian : Click spring.... your videos are incredible. First I’d like to say your shop is incredible only topped by your attention to detail. Thank you for inviting us all along on your journey. It blows my mind that this object found on the sea floor after hundreds of years of corrosion and the effects of natural process’s could be analyzed to such a wonderful degree. It’s a fantastic detective story of the mechanical and engineering abilities of ancient civilization. Then to recreate the mechanism so everyone can see how it works, using historical tools to further your understanding of how the mechanism was originally built, is extraordinary. I love to let my mind wander and follow a path of “what if”. What if the knowledge of these ancient engineers had been past on to the common human at the time not lost into the sands of history. Where would humanity be today? Would we have developed super weapons to early in our history and as s result killed ourselves off? Or would we already be a multi planet species bent on reaching the nearest star system?

Ryan Prince : Oh my, the cinematography is incredible. The content is leaving me speechless. The modeling software.. WHAT!? And this is just a hobby? What do you do for a living? gwooowow