[STATUS] - March 2018 (Update March 29th, 8:00pm AEST)
🕑 Added 2018-03-05 08:18:35 +0000 UTC (Update March 29th, 8:00pm AEST)The pivot and inside shoulder bearing for the Saros Pointer Assembly - There were several other adjacent components constraining the size, shape and design of this little bearing. This was the ancient solution to permit not only clearance from those other components, but also to provide vertical stability and acceptable friction: (Short Video)
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(Update March 28th, 12:00pm AEST)
The new Weiss lathe (WM250VF) has been sitting idle in the shop without being properly installed for many months due the the AM and BSC projects, but I finally got around to leveling it and taking first cuts over the last few days. First impressions so far: Its a high quality machine, with not a whole lot to complain about. I'll cover it detail in the next TGT, but I want to push it a bit harder over a few weeks to make sure I don't miss anything before discussing. So I will do a bit more on that TGT today, and then back on the AM from tomorrow, working on both over the next few weeks.
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(Update March 23rd, 8:00pm AEST)
I've had a blast writing and narrating this latest vid, and I think its going to kick off a fun new series - the first episode is on its way to you now, and it should land in a few hours.
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(Update March 21st, 11:00am AEST)
Putting in a safe edge as part of the new shop skills video series - more editing today
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(Update March 17th, 6:15pm AEST)
I started shooting today for the new series of shop skills vids - I've decided to kick it all off with my fave tool: hand files
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(Update March 13th, 7:15pm AEST)
The pivot supporting structure for this next part of the mechanism (Saros train) is most unconventional by modern standards - this is part of the small bearing insert that will hold the Saros Pointer assembly. A thin flange will slip over the smaller square boss, and then the whole thing will be riveted into the main plate, much like the main bearing.
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(Update March 8th, 6:15pm AEST)
The test fit is good - all ready for permanent riveting.
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(Update March 7th, 5:15pm AEST)
A square hole for the F assembly hub - I do wonder who got the job of filing these on the original...
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The chips have officially started to fly on episode 7 of the Antikythera build - if you're interested in following the progress of this and other videos throughout the month, this is the link to visit with short updates posted every few days - Also a good place to post any questions etc - Cheers :)
Comments
Clickspring
Hey Matt, yes brass is crazy expensive - I get most of the larger round stock from my local scrap metal depot - Its still expensive tho!
Matthew Thomas
Hey Chris, caught myself re-watching your clock series -- procrastinating from uni work like usual, and I had a question... That counter weight you formed from a large piece of brass round stock - that would have cost a fortune, how much was it and where'd you get it from?
Jrandom Bob
Yeah, having just bought one of those myself (and the BF-20 milling head) it is *almost* identical save a few features, so probably a slightly varied model out of the same factory.
Damien Miller
Vertex allegedly makes one (cat. no. V-407), but I haven't seen them for sale anywhere. (correction, Minitech has it: <a href="https://www.minitech.com.au/collet-chuck-er32-x-4mt-vertex)" rel="nofollow noopener" target="_blank">https://www.minitech.com.au/collet-chuck-er32-x-4mt-vertex)</a>
Clickspring
Tracked one down from Gloster tooling, winging its way to me as I write :)
Clickspring
So far its encouraging, but I really want to spend a good couple of days on investigating the it thoroughly before commenting - will let you know :)
Iain Deas
lathe looks good, have fun getting a 4mt to er32 collet chuck for the headstock, i found one from CTC tools.
Iain Deas
i was thinking the same as i've got the optimum 2506, the optimum is a weiss rebadged im pretty sure?
Damien Miller
That Weiss looks like it identical to the Optimum-branded one I'm considering buying, so I'm very much looking forward to your video on it. How's the tailstock?
Justin Densmore
Well thank you for replying and trying to help. Oh i LOVED the skeleton clock you made mostly from brass. It really helped me pass tge time while i was in pt for a dislocation a couple years ago. Also i can't wait for the day that i can use the prints for the little hand vice. I took a manual machining class last year and LOVED it. Only wished I could have used that time to make that machine.
Justin Densmore
Hmmm... Must be something my phone is doing then. Like i see where you can click the attachment and download, but below there is that number of blank picture frames like if a picture link was broken or something. I'd send you a screen shot if I could
Clickspring
I'm not sure what it would be mate - I don't have any thumbnails at all when I view that part of the post in a browser, I see only the links.
Justin Densmore
Like on the March 18th update, you have 5 attachments. And below are the small blank picture's. So if there are viewable pictures, i have to download the link
Justin Densmore
So you know the pictures of your projects that are at the bottom of the description and updates you make that can be downloaded and enlarged. Well they are on average just a broken/blank image of a picture frame. I'd send you a screen shot if possible.
Clickspring
I don't quite follow what you mean Justin, can you give me some more detail?
Clickspring
.
Justin Densmore
I don't know why, but i can hardly ever see any of your thumbnail pics
John Lancashire
OK. I'll watch with interest.
Clickspring
Hey John, the pointers are set upon assembly - Cheers :)
John Lancashire
Great. Looks like you're building the Saros gears. What's your strategy for calibrating the machine once it's finished? Obviously you need to be able to move all the pointers to a specific start position on a specific date and synchronise that with the position of the lunar epicycle gearing on E. The only way to do that is to allow the pointers to be adjusted on their axles, but they can't be too slack because you need the axle to push the long pointers around the spiral. Remember - you're not allowed to use grubscrews!
Clickspring
Thank you mate, terrific to have you on board :)
John Lancashire
Great project by the way - it looks beautiful,
Clickspring
Hey John, yes I've corresponded with both - Cheers :)
John Lancashire
Hi Chris. Have you been in touch with Tony Freeth or Michael Wright about the design?
Clickspring
Hey Tom, there is still much ground to cover that will influence the final result, but I'll have a good idea of that cost in a modern context by the end of the project.
Tom Dunbar
Thinking about who had to file all the square holes got me thinking, do you have an estimate on how many skilled and unskilled hours it would take for a shop to produce one of these devices purely by hand? I'm wondering if you could estimate a 'cost' based on the parts and labor. I'm also wondering about this cost in a modern context. e.g. was the mechanism like buying a jet plane, a Ferrari, or a Lexus?
Clickspring
Certainly John, you can find it here: <a href="https://www.patreon.com/posts/tools-glorious-3-14136290">https://www.patreon.com/posts/tools-glorious-3-14136290</a> - Cheers :)
john horton
Hi Chris, I am trying to find the video you did where you made your furnace. Can you point me in the right direction please?
Clickspring
Ha ha! - my last resort option David!
Clickspring
Ha ha! Thank you mate :)
Clickspring
Terrific suggestion mate, thank you - I have added it to the TGT list
David Paterson
Funny, I have just assembled a French clock with a lock plate strike, which has very much the same type of problem with only 4 wheels, and was thinking the same thing about Chris' challenge - could always do the setup and then engrave the plates (LOL)
David Paterson
Noice, eh as they say in your parts. Impressive fitting as always Chris.
Adam Seymour
Can I suggest a potential topic for your tgt segment? I think it would be really good to have one on the tools required for marking up (spring dividers, dogleg calipers and whatnot) and the basics of their operation. You make it look so effortless, but the amount of skill required to do it properly is sometimes understated. You have such a fantastic educational approach to your videography that it would be remiss not preserve it on the internet.
Kirk Jensen
Its funny... as i read your response, in my head i read it with an Australian accent :)
Clickspring
Yes the data is easily available today for setup - not quite good to go 'forever' once set tho. The ratios are extremely good in some respects, but not perfect. This is something I'm going to cover in detail towards the end of the series - Cheers :)
Kirk Jensen
It will be very interesting to me to see how the entire gear train is "timed" in the end. I guess you will consult an astrological expert to set the dials and indicators correctly the first time? after that its good to go forever?
Clickspring
ha ha! Cheers mate :)
Clickspring
Hey Gary, there is a menu on the left side of the page towards the top, underneath the words "Featured tags" - You can use those links to get to most of the posts - Cheers :)
SlowrTrfcKeepRght
Where do I find like a main menu of your projects? I've had to scroll through posts to find what I want. For example the Tools posts, scrolling through other posts to find what I wanted. Thanks Gary
Kevin Reardon
Looking forward to seeing it completed. Just remember to not take it to This Old Tony's ship, I mean shop.
Clickspring
I would love to have met him - I regularly re-read sections of "Gears From The Greeks" as part of the project, and it still hooks me every time.
Clickspring
Thank you mate, very much appreciated :)
Nelson Collar
that should have been "You are" I don't know where the I came from. Cheers
Nelson Collar
Looking forward to see the new videos. They are always packed with something special. I are an inspiration. Nelson
Nelson Collar
Chris
Bob Mackay
I am an enthusiast of the Antikythera machine and your amazing reconstruction project because Derek de Solla Price was a colleague of my father's. I met him in Yugoslavia as a child, way back when; all I can remember is that he had an amazing wristwatch, with dials for the sun and the moon. He was seriously into that stuff! Best wishes in all your work. Bob
Brian Clark
I would love to see Chris make some investment castings based on 3D printed models!
Clickspring
Awesome mate - will do my best to get the lathe one out this month :)
Brendan Murphy
Chris I am really looking forward to the upcoming tools glorious tools video about recommended shop equipment. I am thinking about making the plunge and buying a lathe and maybe a mill. Thanks for all the great content.
Clickspring
At present I have on the go: the AM & Fragments series, the BSC project, the next TGT episode ("which lathe to buy"), a new short skills series, and a new research paper idea - exhausted but loving it :)
Ryan Das
Are you just working on the Antikythera Mechanism(and its fragments)? Or do you have other projects?
Clickspring
So far the small parts vise is the clear standout in that regard - I'm amazed at how well it performs. Not quite ready to ditch the Panavise completely, but I can't remember the last time I used it... Cheers :)
Ralph McCoy
Agree
Ralph McCoy
AAH the smell of chips in the morning it smells like victory. Good on you Chris,!! Ralph
Stephen Swartz
Agreed
Ryan Das
Chris, are there any shop-made tools you prefer to their modern counterparts? You've said very good things about the wedge vise, as well as the manual dividing plate.
Boguslaw Smalec
Agree.
Andrew Barth
While I agree that the results would be incredible, I think part of his uniqueness is how he makes absolutely everything manually.
Glen Bertram (Stuff I Do)
I really think you should get a 3d printer, of all the people I've seen with one ( including myself) I don't think any of them could be as creative or as practical as I imagine you using one
Clickspring
Awesome Tom, so pleased :)
Tom Boucher
Used a superglue arbor for the first time tonight--success on a brand new (cheap!) lathe. Thanks for the inspiration.
Clickspring
Cheers mate :)
Sondre Ninive Andersen
Can't wait! forward to seeing all the latest TGTs and fragments in use!