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

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The Antikythera Mechanism Episode 9 - Making The Epicyclic Pin and Slot Gearing, by Clickspring. In this video I make what is arguably the most impressive section of the mechanism - the small pin-and-slot module that models the Ancient Greek theory of the variable motion of the #dearMoon. If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: ________________________________________________________ A very special thank you to Patrons: Sinking Valley Woodworks ( Glenn Trewitt Christopher Warnock Mike Manfrin John A McCormick David Wurmfeld Lonnie Koehn Michael Harmon Jim Popwell Gary Levario Rollin W. Patrick, Jr. Pete Askew Andre van Soest Larry Pardi Bernd Fischer Rudolph Bescherer Jr Adam Slagle Jeremiah G. Mort Olof Haggren Tim Bray Steven R. Crider ________________________________________________________ You can also help me make these videos by purchasing via the following Amazon Affiliate links: Cameras used in this video: Panasonic GH5 - Panasonic X920 - Tools & Shop Products: "Solidworks 2013 Bible": "Gears From The Greeks", Derek de Solla Price: Sherline Lathe: Sherline WW collets: Dykem 80300 Steel Blue Layout Fluid, Brush-in-Cap (4oz): Saint Gobain (Norton) - 4 Arkansas Stones + case: Blue Matador Abrasive Paper - Bergeon Professional Cleaning Rodico: Lodge Cast Iron: References: The experimental bench block and forming tools used at 10:48 are conceptually based on some of the research in the papers mentioned in this papers bibliography: Gears From The Greeks - Derek de Solla Price: The CT and PTM data that the AMRP have made publicly available can be found here: Marcus Tullius Cicero: Cicero De natura deorum: Apsidal Precession: Hipparchus: Anomalistic Month: Music:, The Antikythera Mechanism Episode 9 - Making The Epicyclic Pin and Slot Gearing, by Clickspring.


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

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

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??

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

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... 😉

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!

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.

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

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!

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.

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

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

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.

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.

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

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

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

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.

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.

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.

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.

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.

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

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

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!?

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!

Transaction Coordinator : 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!

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

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

EpicCoffeeDrinker : 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.

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.

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

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.

Roy Lucas : Watching you work through the intricate brass parts is mesmerizing. Thank you for doing this video.

Euclid AllGloryToTheLogLady : I'm completely beside myself... Incredible workmanship! How... HOW !! Can anyone thumbs down your work is beyond me.

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

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?

J Rand : This is so beautiful and complex, that it blows my mind! I'm literally speechless! Astonishing work Sir!

Paul Murray : I begin to understand why this series is so long between episodes. Unravelling this from some x-rays and our current understanding of celestial motions takes time, and you want to get it right before filing away any metal. Above all I am just flabbergasted at the subtlety, the complexity, the completeness of the astronomical knowledge of the ancient greeks. It's an order of precision beyond what I had guessed.

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?

Andy Garag : i would be satisfied to just be able to file a sqaure interfance fit by hand.

Henry Mullett : Clicked like before the ad finished

Mandurath : Mind blowing as usual. The quality of your content is as good or better than any commercially "How's it made" type program on TV I've ever seen. Thanks.

Sam Birch : Id say these videos are extremely well thought out and rather interesting. Keep up the phenomenal work!

Thomas Lovén : Oh, how I wish you had just made a little wooden crank or something and spun it smoothly at the end. That'd have been imagery I'd lay awake at night thinking about. ... also would have been stolen to reddit within minutes...

Microbyte VAX11/780 : I’m a computer engineer, these mechanical devices fascinate me.