Clockmaking - How To Make A Clock In The Home Machine Shop - Part 18 - Making The Pendulum
Вставка
- Опубліковано 28 вер 2024
- Making The Pendulum, by Clickspring.
In this video I complete the pendulum assembly, and then have a quick look its behaviour with the help of a Microset timing machine.
If you would like to help support the creation of these videos, then head on over to the Clickspring Patreon page: / clickspring
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A very special thank you to Patrons Dan Keen, and Samuel Irons.
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You can also help me make these videos by purchasing via the following Amazon Affiliate links:
Cameras used in this video:
Panasonic GH5 - amzn.to/2rEzhh2
Panasonic X920 - amzn.to/2wzxxdT
Tools & Shop Products:
"Solidworks 2013 Bible": amzn.to/2FObS1D
Dykem 80300 Steel Blue Layout Fluid, Brush-in-Cap (4oz): amzn.to/2HGPaJJ
Interapid Dial Test Indicator: amzn.to/2FPInwH
Loctite 231097 603 Retaining Compound, 10 mL: amzn.to/2pid6vR
Digital Calipers: amzn.to/2IkFh4O
Sherline Lathe: amzn.to/2pnXM19
More pendulum Information:
Galileo discovers the interesting properties of the pendulum: • The Pendulum and Galileo
Huygens uses a pendulum to revolutionise clock construction: www.historyofin...
Pendulums are not quite Isochronous - Circular error: en.wikipedia.o...
www.rmg.co.uk/d...
Gravity is not a constant: en.wikipedia.o...
Pendulum length is not constant either - Temperature Compensation: en.wikipedia.o...
Pendulums are bouyant and experience drag - Baromatric compensation: en.wikipedia.o...
Pendulum stability and Q (not the guy from Star Trek Next Gen): en.wikipedia.o...
www.meccanotec....
Harrison was correct - Larger amplitude, High Q, reduced circular error = astounding results. The Burgess Clock B trials - • Amazingly accurate clo...
Abbreviated Transcript:
0:00:11 If there's one common attribute across all mechanical timepieces, its that each must have a component that provides a fixed and consistent interval of time.
0:00:45 The plans call for a simple brass disc for the bob, but I think it'll be a bit more interesting with a contoured profile like this.
0:01:15 Now although the profile of the bob is quite simple, its shape makes it quite a challenging part to hold on to, while making the required cuts.
0:03:37 The taper cut removes the bulk of the material, and so reduces the workload for the form tool that follows. Now that surface finish needs to be improved, so I wrapped abrasive paper around this file to maintain the contour, while I sanded and then polished the surface.
0:06:41 The tool is gently brought into contact with the work, until the bearing starts to continuously rotate. At this point the lathe is stopped, and the jaws further tightened. Visually I can see that the part is running quite true, but an indicator shows just how effective this simple tool can be.
0:09:44 A light sand and polish brings up the surface finish, and its ready to have the features for the hook formed. First up I'm drilling a cross hole to define the top of the hook slot. The cross hole diameter is 1mm, and I've used the drill bit to help me align the workpiece in the vise.
0:11:52 A few drops of loctite bond these last two parts in place, and I'm taking care to align the hook and block perpendicular to the face of the pendulum bob. And thats the pendulum assembly complete, so lets have a look at it in action.
0:12:48 And secondly that time interval is approximately proportional to the square root of the pendulum length divided by gravity. This gives us two things. We can tolerate some small variations in how wide our pendulum swings, and still have an accurate clock.
0:13:42 I've set up a timing machine to measure the time interval of a complete swing, and at the moment it's a little less than 1 a second. But as I lengthen the pendulum suspension thread, I increase the effective length of the pendulum, and so that time interval also increases, this case, to just over 1 second per swing.
0:13:59 The pendulum needs to receive a regular push to replace the small amount of energy that it loses to friction, and it receives that push from another crucial part of the clock mechanism that I'll complete in a future video. The escapement.
References:
John Wilding "Large Wheel Skeleton Clock" construction book can be purchased online from Ian T Cobb:
www.clockmaking...
Making The Pendulum, by Clickspring.
It's almost (ALMOST) frustrating to watch your videos, Chris! Everything is so perfect compared to anything I could make! Never stop making these, I could watch them all day.
Thank you Bart! Plenty more on the way, I am getting very excited about the project that will follow this one, can't wait to show it to you :)
I DO watch these all day! Lost track of how much time I've let slip by mesmerised by seeing these parts take shape.
There's going to be another project? My work productivity is certainly going to suffer. I binged my way through this series.
Fabulous! Thanks also for the link to the Burgess clock trial proving Harrison was 150 years ahead of his time, humbling knowledge.
Truly mind blowing to think that the world could have had a vastly superior time standard hundreds of years earlier, but for the pig headedness of the establishment of the day! Cheers mate :)
Every day a new Clickspring video comes out is a good day. Excellent as always.
Everything is perfect in these videos: the subject, the closeups, the machining skills, the editing... It´s a perfect 10.
I could watch your videos all day every day and I'd be a happy man. Excellent work Chris, keep it up.
Chris, I am neither a clockmaker nor a machinist. Indeed, I have never operated a lathe in my life. But I have been absolutely mesmerized by your video clips and I thank you for sharing them with us.
I find your attention to detail a delight to watch and as if that is not enough, your cinematography is outstanding.
I look forward to seeing the end product and am in no doubt at all that it will look superb.
Cheers
Thanks very much Mick, terrific to have your support :)
Man that pendulm is so so so shiny. Nicely done.
Wow looks great Chris. What a clever idea referencing the centre with that spigot...thanks.
Cheers mate :)
how is this answer posted 6 days ago
BTW your videos are great. as a woodworker i love them
+ik vinde helemaal mooi petrion
I always feel a bit happier whenever i see a new video on your channel. Such a relaxing activity to watch.
The level of production on these videos is just incredible
Appreciate you taking the time to watch Kyle :)
Has it already been three weeks since the last one? Wow.
Can't get enough of this. Thanks for making these wonderful videos.
I'm subscribed to over 300 channels on UA-cam and your videos are the top reason I bother to check the subscriptions tab. Once again, beautiful work!
Terrific to have your support mate :)
Thank you for the machiningporn!
Some people follows Game of Thrones, some The Walking Dead, some The Simpsons, but I follow your clock making series, is really amazing. I really dream about the season finale when the clock is finished
Ha ha! Great to have you watching Carlos!
In my book this pure art! Thanks for sharing!
What a joy to see. True craftsmanship.!!!!!! Long may it last. Many thanks for sharing.
Chris, I could watch your videos all day. Phenomenal work as usual.
Best part of it all is how his voice and attitude remain so consistently enthusiastic all through the series, not just few videos.
By far the best machining channel on UA-cam. Keep up the great work!
Very much appreciate your encouragement mate, thank you :)
the polished brass of the pendulum looks AMAZING!
Thanks for watching Nathan :)
Could you do a workshop walkthrough/showcase?
So we can see what sort of things you use?
Yes will do a shop video in the future, in the meantime: www.clickspringprojects.com/blog/from-little-things Thanks for watching
+Clickspring No thank you dude, this stuff is good enough to be on TV.
Quality above the level of Bob Ross's show for people who like machining.
I dare say it's better than most of the stuff on TV now-a-days.
holy cow! That's a small shop!
never would have thought it. Great job.
wouldn't be so much of a walkthrough as a "standthrough" tour! I'll never complain about workshop space again!
This is hands down the best machining channel on UA-cam. Awesome work!
Cheers Caleb, very much appreciate your support :)
Incredible craftmanship!
Always an exciting day when a new Clickspring video is posted!
Very fun thanks
Just had an idea Chris.......your lathe's topslide guage is losing it's indicators.....
Well why not use your auto indexing system to cut a new set of indicator marks and use the black shellac used in making the clockface to highlight them?
Great idea Matt, I definitely need to get onto that soon!
Great use of the contrasting polished and satin finishes on the bob. I can hardly wait for the escapement video. Superb work Chris!
Cheers Scott!
GAAAAAAA. I just watched it and I always want more! Now I'm off to find a used lathe and other tools because now I want to build something.
Absolutely stunning. Fantastic camera work and incredible craftsmanship. Thank you. I can watch an artist at work all day and it was a pleasure watching you.
Terrific to have you watching :)
It's like Christmas!
Clickspring the camera work in this video is at a new level, very interesting and intriguing to see your work with the "spiced up" camera work!
Thanks for the encouragement, much appreciated :)
I do have to thank you for making these video and encouraging me to start getting tools to do my own hobby machining... I always liked watching the videos of big 18" lathes turning metal and did not think I could do any of those kinda things at home.... Since I started watching your videos like 6 months ago I have bought 3 lathes (sold one becasue 2 lathes is really plenty for a garage) and a Mill and everyday I'm making something new and learning something new... Super fun!
15 minutes and 17 seconds of pure clock making porn! I love your channel man!
Keep up the great work!
I like tight and shiny clock myself, LOL!
Knolltop Farms hahahaha
Would you like to see my big black clock?
After seeing six or seven videos i became an Clickspring addict ........ nice edited and commented clips !
Holy clock that is awesome! An absolute pleasure to watch!
I know I keep posting comments but ever since I discovered this video series I always find myself looking forward to the next. Stunning piece and although I know it's not all completed I have to say each part of the whole is so well done that each looks like an art piece in and of themselves.
By now i am excited to see the completed product, is getting closer and closer to that.
so awesome!
Nick!
Living Wood Creations -wood turning videos- yup
Won't be long now before this beautiful clock is complete!! Beautiful work as always Chris!
Yes getting close to the finish line - approx 4 more episodes to go - Base and Feet, Mainspring and Stopwork, Escapement, Final Assembly. Thanks for your continued support mate :)
Awesome, beautiful and cool!
Thanks for the pendulum timing setup rundown. Very informative but concise.
amazing .... cant wait til its done
Immaculate craftsmanship, as usual. Love your work!
Chris, thumbs up! Thank you, great video.
Cheers Apuk :)
By far, the best video production of making content anywhere on the web.
Your stuff is top notch .
Thank you.
Eric
Cheers Eric, terrific to have your support mate :)
Very cool!
It's coming together quickly now! It will be quite a treat to see the whole thing in action at the end.
I could watch that form tool all day
Please don't produce more content.
If you do, I will just lay in a puddle all day watching Clickspring videos, neglecting to eat, sleep, or turn my body to avoid bedsores.
All I want in life is to see features turned and milled in brass in HD.
My favorite series on UA-cam right now!
was just wonding if you were going to do a video on making the shop made hand vise?
ua-cam.com/video/iCeaNZ6R56k/v-deo.html thanks for watching John
+Clickspring so I have to support you on patreon to watch? I really wish I could give money to support. but I am out of work do to an injury so I have no money for myself to live on let alone to donate. but keep up the great videos. I will always watch them.
+Clickspring So that's where you've been. Is there a way to make some of these side projects available for purchase on UA-cam? I'd like to do the Patreon thing, but with an inconsistent income it's hard to commit. It's a much better option for some people.
If you've already considered that and decided against it, then I'm sure you have good reasons. I'll always enjoy whatever you are able to to show us. Thank you.
Perhaps consider supporting intermittently - the videos will always be there, and I would appreciate your support no matter how much, or how frequent :)
Exquisite work Chris. I've watched the whole series twice so far. You don't do anything halfway. Thank you again!
Thanks for your support mate, much appreciated :)
Wow ! Just discovered your series and was totally glued to it ! Can't wait to see the rest ! Your work is outstanding but I should also mention the exceptional quality of your filming and editing !
Terrific to have you watching Gilles :)
bellissimo
That bump technique was masterful
this has become one of the channels that I watch every day. every time you release a new clip I stop what I'm doing and watch it. Truly a masterpiece being created
Hey Chris, I love the videos. You put so much time and effort into your work, and it really pays off. I was wondering if you could do a shop tour. I'm sure a lot of people would like to see your setup.
Will definitely do a shop tour at some point, but in the meantime: www.clickspringprojects.com/blog/from-little-things Thanks for watching
Genius Chris, pure genius. Many thanks for sharing.
I'm glad I've found this channel!
Excellent video as always. That handheld rod holder/vice you made is phenomenal.
The shop made hand vice is a work of art in itself!
That shop made vise is amazing!
Ahhh Yes! The day has come! 3 week wait! Let me get a cuppa and enjoy this!
I just love how you use tools to make tools that then help you make a project! So awesome to watch!
Incredible skill, from Russia with love (russian accent).
just finished exams today, and i get a new clickspring vid? this a great day!!!
What's with the thumbs down? Must be people so dumb that they can only read digital clocks.
Jay West, I think they probably cannot even read a digital clock.
Chris, superb as always! And I think the videos are getting more interesting as we (I'm for sure) learn about more the clock mechanics.
Terrific to hear that mate :)
Absolutely amazing! I got here from ave's channel (he advertised yours right in the middle of one of his reviews...), and I must say the quality of your work AND the quality of the videos leave me speechless. Are you a pro...? I am more of a woodworker, and looking at your videos make me wish I had enough space for a second workshop for metal... Once again, congratulations and please don't stop!
Your workmanship, video editing, commentary and the way you explain your steps are just awesome i look forward to every video of yours that pops up on my sub list! keep up the great videos :D
I'm so hooked on this series. There is something so satisfying about watching raw stock being turned (see what I did there?) into something beautiful and functional. Thanks for all of your hard work producing these videos, Chris!
Thanks very much for watching :)
New clickspring video! It's a good day!
This was one of the most satisfying videos I've ever watched
in the video, this looks really big, but in real life it is tiny, which makes it even more amazing!
Always excited to see your videos, Chris. Thanks for another one!
these videos are very strangely satisfying
Its hard t0 get a grip of the size of the clock, the zoom and the precision make it seem enormous until we see your hands xD
outstanding work as always ,that centering technique on the lathe for the bob is Perfect. Always enjoy Friend thanks for sharing
Cheers Tim :)
My goal in life is to see this clock completed!
I'm so in love with this series of videos! I'm watching it from the beginning and it is always a pleasure for the eyes and the ears. Thank you so much Chris.
I don't have mind boggle insurance, so watching this is really risky. Staggeringly beautiful work, great ideas for eventual technique. THANKS
As always Chris a video that is a joy to watch, the pendulum is beautiful and simple...I loved the way you casually drop in the fact that the hand vice was a shop made tool...even the tools you make are beautiful to look at....perfect video for the middle of the week, cheers mate!
Cheers Bear :)
Incredible. Your videography , camera angles and composition are a delight to watch along with some great content. Great series. I watched this twice:)
Thanks very much for watching :)
It's impressive that super glue can handle the cutting force of that form tool. Even with light cuts that's still a lot of metal on metal contact
Damn I'm always so excited when I see a new Clickspring video! Beautiful work as always, you provide some of the finest videos I see on UA-cam.
Cheers Sam, thanks for tuning in for each release, much appreciated :)
Another PERFECTLY made video. I discovered your channel somewhat recently, and bing-watched all of your videos. The camera work, detail shots, narration, final results...everything about your clock making series is beautiful. Thank you for making such an amazing work of art, and sharing it with the world like this.
Appreciate your support Dusty, thank you :)
Great video and spectacular results yet again. Very much appreciate you sharing this with us.
I've been waiting weeks for this! I find your voice over very soothing and this is very informative. very amazing my friend.
5:12 I’ve never seen such fine chips before
Your videos are eye-candy, polished metal!
Another epic video Chris. That pin vise is gorgeous.
Immaculate work.
Cheers Chris :)
I get the feeling i used to get on christmas when I see your videos in my feed!When this series is over my life isn't going to be complete anymore,I really hope you start a new series right after!And also I usually get bored when people have uploads every two weeks or something,but with this high quallity production I don't know how you manage it in less then 2 months.
Hey Samo, it certainly keeps me busy! You're going to love the next project, more detail as this one gets closer to the finish line :)
+Clickspring Can't wait for it!Also "samo" means "just" or "only" in my language and Dimitrije is my name but it's okay can't expect everyone to know everything,just for future notice.
You do outstanding work! But, I would have liked to see you put your rope knurling around the perimeter of the bob and kind of keep that design element going. The contrast between the polished cove and the flat center is very nice. Mere words can't describe how much I enjoy watching your videos -- thanks for sharing.
Hey Steve, I very nearly did as you suggest, but decided it would be a bit too overpowering, so went with the clean design instead. I found a better use for the rope knurl theme in a future video... :)
Nice work Chris! Your videos are informative and inspirational. Thanks for your time and effort as you are very much appreciated mate!
Cheers Jeffrey!
Woooow woooow every think in your videos are pure perfect
Either you got a new camera, or have really stepped up your shooting techniques. LOVING IT! Great work as always.
I freaking love watching your videos!
I always look forward to your videos. You're my favorite youtuber. Creating is one of the greatest joys in life and watching a master (or at the very least a skilled and talented individual) create is a gift. I stumbled upon your channel about a year ago and seeing the clock take form over time has made me happy. I'll miss this clock when it's complete. I doubt you'll stop making videos but you know what I mean. I'm sure you'll be a little sad once it's over too (I know I am when I finish a painting) because the joy of making something is in the creation of it. I'll be looking forward to what you'll make after this as well. Cheers, man.
You're right, I will. It's been a big part of my life for well over a year now, and I've learned so much from it. Its almost like a member of the family! It will be fun to start on something new though too :)
Clickspring What do you think you'll make next? Will you do a bunch of little projects before jumping into a new big project or will you just start new on something big? Its amazing to me how much you can do in a machine shop.
Wonderful, just wonderful. I love watching your videos, I love your work and descriptions! Will be watching for the next one!
thanks for uploading. I always enjoy your videos so much. The pendulum looks great!
Thank you Chris. Bang up job as usual.