Constructing A Byzantine Sundial-Calendar - Part 2 (Cutting The Wheels & Pinions)
ฝัง
- เผยแพร่เมื่อ 7 ก.ย. 2024
- Hey Folks,
Designed and constructed in 2016-2019 as a companion project to the Antikythera mechanism, this video series is an alternative look at the second oldest geared mechanism from antiquity: The Byzantine (London) Sundial-Calendar.
I designed the project as a sort of 'gateway' project into more complex horological work, especially if you're already comfortable with model engineering, and maybe feel like tackling something a little unusual. I've seen some outstanding builds of this project over the intervening years and would love to see more. So, if you'd like to build along with the series and help me make these videos, the plans for the project are available as part of the $1 tier on Patreon, find out more here: / about
Those of you who are Patrons will notice that for this TH-cam release of the series I've spruced up the intro card and soundtrack, and also combined a few episodes together to make it all a bit more efficient for the viewer. For those who are seeing this narrated build series for the first time, do please enjoy!
Cheers.
Chris.
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A very special thank you to Patrons:
Sinking Valley Woodworks
Glenn Trewitt
Christopher Warnock
Guy Loughridge
Charles Frodsham & Co.
Peter John Richardson
Sam Towne
Adam Slagle
Robin Haerens
Mitchell Collins
Daniel Taraldsen
Jeremiah G. Mort
L'Enfant Watch Company
C. A. Patrick Voigt
Steven R. Crider
Gary Levario
Mark Coburn
Pete Askew
Jeff Armstrong
Ralph McCoy
Jim Popwell
Kaedenn
Bradley Pirtle
PaxAndromeda
Thomas Eriksen
Michael Hardel
Tim Ball
Grant Michener
Jonathan Teegarden
Steve Hossner
RuKiddin06
John Maksim
RobinP556
Lea Bruder
Armagus
John S Dilsaver
matt mcparland
Daniel Cohen
Larry Pardi
Sean Kuyper
Samuel Irons
Dan Keen
Florian Ragwitz
Matthew Middleton
Matteo Neville
Olof Haggren
Stassinopoulos Thomas
Dave Seff
Tim Bray
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The published work of the late WR (Bill) Smith:
Workshop Books: wrsmithclocks....
DVD's: wrsmithclocks....
Metal polish: wrsmithclocks....
References:
Original Artefact:
collection.sci...
Michael T. Wright (curator): en.wikipedia.o....
J.V. Field & M.T. Wright, “Gears from the Byzantines: a Portable Sundial with Calendrical Gearing”, Annals of Science, 42 (1985), pp. 87 - 138.
D.R. Hill, “Al-Bīrūnī’s Mechanical Calendar”, Annals of Science, 42 (1985), pp.139 - 163.
J.V. Field, “Some Roman and Byzantine Portable Sundials and the London Sundial-Calendar”, History of Technology, 12 (1990), pp. 103 - 135.
M.T. Wright, “Rational and Irrational Reconstruction: the London Sundial-Calendar and the Early History of Geared Mechanisms”, History of Technology, 12 (1990), pp.65 - 102.
You can also help me make these videos by purchasing via the following Amazon Affiliate links:
Cameras:
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The relief feeling every time the last tooth cut matches up perfectly.
That was a most excellent pun!
Between Clickspring and Inheritance Machining, I'm all geared up!
I you like them, you probably also enjoy "Hand Tool rescue" 😊
@@erikl.7160slight difference machining accuracy!
Content you can really get your teeth into
@@erikl.7160 Blondihacks is also excellent!
Are they spurring you on?
It’s a good day when there is new Click Spring.
Was just fixing to comment that same thing!
It’s a g’day
How lucky are we that a man with such exceptional engineering and machining skills also has exceptional video production abilities? I feel darn lucky. I could watch Clickspring videos all day long. Thanks!
That he is an excellent communicator on top of all that is probably why every other machinist channel considers Clickspring on a completely different level. I mean, when he told us he was writing a PhD on the Antikythera mechanism my first thought was "Yeah, that makes sense" and not "WHAAAAT????".
Best adult bedtime story series...for a few moments, with a warm glass of fine Brandy in hand, its as if there is peace on the planet.
Theres something intensely soothing and mindful about watching a brush applying engineer's blue to a rotating workpiece 😊
Millions, billions of years and I have the honor of existing in the same lifetime as this wonderful man. Thank you for everything you do
"Thank you for watching, I'll see you later". No saddest words ever spoken on yt. I could watch this for hours
I really appreciate that even though Clickspring is a big time TH-cam maker they still think about things like making good use of stock and material waste.
30 seconds, that how long it took me to learn something, that using the piece of paper to hold something while using spray adhesive so it doesn't get all over the table or your fingers, brilliant.
As a person with aphantasia I really appreciate how you overlay the cad design with the actual parts it really helps to understand how the whole assembly works. It also gives me an added appreciation for how much is actually being done. Your skills in your craft are amazing and I thank you for sharing them!
Easily the most professional , educational and thoroughly enjoyable channel on TH-cam , great work Chris !!!!
Been hearing about you in the news due to your work on the Antikythera Fragment congratulations good to see hard work recognized.
I could watch this Man work all day. The attention to detail, work processes, hints and tips all make it fascinating. Thank you Sir.
There is something oddly satisfying when the last cut is made in the gear and the teeth align perfectly.
Thank you Chris. Your videos are always enjoyable and informative. With immaculate workmanship.
It's often difficult to grasp the small scale at which Chris works, but you get a good idea when he uses a micrometer on a part in the lathe..... and the micrometer jaws look HUGE compared to the part.
Clickspring cinematography is always top notch, but today I enjoy it even more, as I just got a new laptop with a seriously crisp screen. Perfect day for a Clickspring episode :D
And yet another excellent pun in the comments! I suppose he might eventually mount the fly cutter in a way that creates a bottom notch though.
Brilliant, Chris! You really know how to capture the most satisfying moments of every build!
The machine is only as good as the guy cranking the handles. 👍
I must say ive watched almost all of your videos and you are good. I like how you build your own mount for the motor to cut . You give a very good look at how things are made better then anyone on the internet absolutely amazing Chris
AT LAST! Something Im actually capable of accomplishing from a Click spring video! I'm off to cut some paper! 😆
Outstanding machining, explanation, videography and music as usual Chris. Thanks for posting
I know I say it all the time but cutting the final slot and having the tooth come out nicely must be such an amazing experience. I get goosebumps just watching it!
loved this one thanks, it was a 21 Minuit symphony of machining and education ,and the video shot was stunning once again , seeing the last teeth cut too perfection brilliant as well the amazing property's of super glue how too ,they need to sponsor you , and all the minute detail of the milling processes too allow for adjustment , ,,, that you build \make what you need too perform a task , if one has the desire to extend time and effort ,the possibility become endless ,
I always enjoy and learn from your tutorials. Thanks for sharing this.
Thanks. Needed that calming video after a tough day.
Комментарий в поддержку канала и ролика, а также труда мастера.
Some skill on display here that I could never hope to achieve. Looking at the parts being fabricated, I can't help but think that they would be ideal for 3D printing. While the quality would be lower, it would still be cool to be able to print and assemble this mechanism as a display piece.
This is amazing. I learned all kinds of things here. I bet he could make a Harrison H-4 just for fun!
Thanks Chris - Awesome Video... Appreciated.
your precision is mind-boggling 😵💫🥵
Just superb…thank you , its so generous of you to share this work, gives me faith in humanity❤
Gracias por compartir tu profesión siempre aprendo algo nuevo saludos desde Argentina 🇦🇷
It's almost weird to see you working with modern tools!
What I am impressed with is you manage your speed settings...feed rate and rpm.
Your work is amazing! Thank you for the great content sir!!
Fantastic work!
Thank you for being a continued inspiration… I have recently picked up a warco lathe and can’t wait to get back in the shop tomorrow 🙏🙌
It’s weird watching him use modern stuff!
Fabulous as always Chris!
I have been thinking about building a crude 'gear box' for a couple projects, a yard tractor, and a mower kart. I thought of using multiple belts and pulleys on the forward and reverse only gear box. Using a "clutch"! pedal that is pushed to make it go possibly a selector rod to actuate the sub lever. To actuate a single lever. Use for example, a 4",6", and 8" pulley pairs,with opposite size on opposite end, 4" driving 8" ,6" and 6" Or 8" driving a 4"or 6", for a handful of gear ratios. With belts and tensioners on each. Tightening the belt as the gear ratio is desired.. with a final driven ratio of between 4:1 to 6:1 an 8" driving a 4": will give a steep overdrive ratio. The 8" driving 8"would be a great 1:1 with plenty of belt wrap. To prevent slippage . However gears made from 20-26;mm plate steel would would probably work much better, mounted on a 1";shaft the or use larger hollow shafts and use tiny tool steel pins to shift the gears locking them to the shaft when required.
I'm always amazed this man's ability. Love this channel. 👍😎
Watching a scroll saw sped up is terrifying. 😳😵🤣
Awesome video - as always!
You're videos are therapeutic, at least for me. I enjoy them so much. LOL
you made so many of the same features that it started feeling like a fever dream by the end of the video
Amazing!
Thanks Chris, I needed cheering up😊
Cant believe I made it within the first 10!
Always a good day when we get to learn from a man with patience and attn to detail we'll never have :)
Интересные приемы работы, отлично😁👍
Thanks Chris, really interesting.👍👍
Always a great video. Thanks Chris.
Awesome, a new video from Clickspring. My day just got better.
Thanks for another great video Chris!
Great techniques. Thank you.
Always a good day when my boi posts an update!
awesome mate. Love your work!!!
It freaks me out how the last teeth are the same size !! I’d love to know the tolerance of 1st cut teeth verses last ? Outstanding
Thanks for sharing 👍
Hey Chris, you are mentioned in a horological periodic having to do with the Antithykira and how many holes are likely in Calender ring. They credited you because you were trying to figure that out. Congratulations
Epic
That lathe would sure kill me within 15 minutes
I bet the gear cutting would look amazing in super slow motion
Exquisite
i just know that Clickspring is going to make a 1:1 exact replica of the Mechanical Turk at some point lol
Hi Chris,
I have just read an article by Astronomers at the University of Glasgow about research into the Antikythera mechanism.
In it you and your colleagues get a mention. I was wondering if you could perhaps do a short video on the progress being made on determining the specifications of the mechanism. I have really enjoyed watching all of the episodes pertaining to the mechanism and would love some form of update.
Cheers.
Could you please do a video about the ancient style workshop you have created
This really makes you appreciate How important nerdy men are to the industrial World
The fact youre cutting that many teeth and dialing it by hand is kinda nuts.
Hi Chris, thank you for the latest update. What blades do you use in your scroll saw?
I wonder if, since making the Antikithera mechanism, any of Chris's daily machining techniques have changed.
I'm so lost on what's made and what project this is? Been following for years.
Hi Chris, what type of blades (tpi and brand) do you use on your scroll saw when cutting brass sheet? I've got a 5" blade cutting 1 and 2mm brass with marginal results. Enjoy watching your well presented projects
i'm surprised you used a digital divider for the gears
👌👌👌
Gud vid 😍
Read that title as "'constructing a byzantine suicidal calendar". Yup, definitely time for bed...
The editing around the 8 minute mark made me do a double take. Conceptually, I understood only after the second watch-through that these were 4 separate cuts one of which was duplicated and not shown so when the reveal of 5 pinions happen, I thought, "woah, magic!"
I want Uri Tuchman and Clickspring to make something for each other!
So, how did the "ancients" (before B.C.E.) achieve this without a lathe?
Chris have you thought of making lock picking tools 🔧
Hi Chris, I noticed in this video that each time you cut teeth the supporting arbour has been brought to a very close OD, only being marginally smaller than the full depth of the cut. Is this a strict requirement? Looking at the thickness of the stock it would appear to me that the arbour could be several mm smaller in OD and the cut would still progress. Could you comment on this? What am I missing? Thanks, as always, for your wonderful content.
I'd assume it's to maximize surface are for the superglue. Since he cuts the od of the wheel it needs to hold up to the cutting force
👍👍🏴
👍😎
Are there any updates on the Antikythera project? Maybe I missed something 😊
it seems extremely complicated to cut teeth that way (with all the rigging) but i suppose you are trading off complexity of the rigging vs complexity of the cutter. you have an extraordinarily simple cutter with just the one tooth! compare that to IM where he had to make a machine that makes the cutters to cut the cutters that cut the gears. or even just a gear hob!
I’m not seeing the advantage to doing this on a lathe vs a mill. I have a CNC rotary table for a mill but even using a dividing head seems simpler
If I were to design a version based on yours for 3d printing, are there any benefits to sticking with the cycloidal gear tooth design, or can the cycloidal gear teeth be replaced with the normal involute gear profile?
Is end shake the same thing as end float? End shake is what I do at the urinal when I've finished.
I did not spot a DRO on any of your machines (except maybe the gear indexer). Do you use analog readouts for all your work?
4:38 I'm confused about this. A commercial cutter has (say) 12 teeth, to takes 12 cuts per revolution. The shop-made cutter has a single tooth, so shouldn't you need 12x the speed to get the same effect? But you say it needs to be _slower_ .
The actual cutting speed is different from the rate of taking such cuts, so you _don't_ want to change the RPM ... *ah* , you want to change the feed rate (the tool advancing across the work) by a factor of 12 to cut the same tiny increment with each pass., keeping the RPM the same. Still not quite the same effect, though, because you can't decouple the amount it advances during the cut and the amount it advances between cuts.
Whatever happened to the dial indicator project? Did I miss something or is it still ongoing?
😎✌
No need to depth mic shoulders and steps?
My girlfriend misread the title and started to worry why am I watching "sucidal calendar"
Why not involute teeth?
It must be traumatic when people ask a horologist what time it is😅
Are all pferd flat files, made in China now? Bought 2 boxes of 12" files and the boxes clearly said made in China. Just received 5 8" flat chainsaw raker files, no box, files Just say made by pferd.
.
This Healthy Heart Solution Kit video is a fear based load of BS and too ponderous for me to finish watching, too much Bla Bla Bla!!!!!
Chris have you thought of making lock picking tools 🔧