A daunting job broken down and explained in a way that de-dauntified it. Thank you.

Machining since 1971, manual then cnc. This here is what made me fall in love with the trade! Nicely done!

It blows my mind to think that someone was able to imagine this, then design it and make it. We don't give engineers and machinists the credit they deserve. Well done sir!

If I hadn't seen you turn that ring inside out the way you did, I would swear you were lying about it! Incredible!

As a mechanical minded person with a machining background, I paused the video at the start to try to work out how to machine a ring like this but I was unable to work out all the details. I didn't think of turning the ring inside out and stress relieving it. Brilliant, thanks for teaching me this Chris. I don't need a steam ring but I might make one for the fun of it.😄

That ring is a masterpiece. I've always used the Trimble method for my engine's rings. This ring makes the Trimble way look like a trivial thing.

I've made many rings for both steam, petrol and diesel engines over the years from the 50cc up to emergency hand forged 980mm dia with many from the 200mm to 600mm as I was a fitter & turner in a marine work shop and a ex marine engineer. But I have never made any of these and I was totally cringing as well as being initially confused as to turning them inside out, waiting for the snap. Thank you for this post I really enjoyed it and going to try one on my next little model engine for both the piston and shuttle. Thank you

Ha! Love the Super 7! The most versatile small lathes ever. The heyday of British design and engineering.

Fascinating. Always interesting to see how something "impossible" is done.

Thank you for bringing this to us. As an old steamboat builder, I very much enjoyed learning about this process.

A nice little gem suggested by the algorithm! 😊

Great work, great explanation -- and Peter narrates it like an episode of Play School for mechanic-heads! I dips me lid.

Ingenious! Excellent explanation of the process and the underlying idea. A pleasure to watch.

What a craftsman, lovely to watch. Thank you.

Excellent vid! The thought process, ingenuity, craftsmanship and patience that went into this is astounding. Thank you for posting.

Nicely done! I've never seen that type of ring before. I am now further educated. Great video!

That was very interesting. I'm a retired motorcycle mechanic and I still work on our own cars, but I have never seen a piston ring like that. It was certainly tricky to make, but you are well set up with your equipment, so you made it look easy.

This has to be the most significant step forward in ring design and manufacturing for a very long time! Well done Sir 👍

Thanks for that Peter! Never heard of a "clupit" ring. As you are going through the process I was asking myself "how would I do the next bit?" My ideas being a lot more complicated than yours! I work on model aero engines and the smaller sizes do not use piston rings but lap the piston and bore so the piston seals on the castor oil film only. However with careful lapping it is quite possible to get the engine to hold compression forever when it is hot. Lapping to less than a micron. Just a suggestion for squaring up the part in the fixture in the chuck for facing and that is to bring up the tailstock with drill chuck fitted, partially tighten the three jaw chuck then press the part into the chuck a little using the tail stock. If the part is of small dia. and would disappear into the tailstock's hole, hold a bit of ground flat stock over the tail stock's end face whilst using the tailstock's wheel to push the part into the chuck. When done, fully tighten the three jaw chuck.

What a great presentation and well done on a tricky bit of manufacturing!

Mind Blown ! I hope there are young people learning these skills before the old guys depart.

Fascinating and unique information there. Thanks for sharing this.

I'm an Seal design engineer who does a lot of PTFE or other plastics. It's great to see how seals were manufactured before the rise of plastics. I think the method of energization is especially unique!

Superb, you are also a natural narrator, you have a great voice.

I've heard about these types of piston ring but never knew how they were made. What an excellent video.

I think I do some pretty tricky stuff in my shed but Men like this on YT constantly remind me of how much I don't know. That was absolutely fascinating. Great to watch.

Thats incredible I wouldn't have believed it possible if I hadn't seen it done, Im still trying to get my head around what happened when you turned it inside out. Im amazed you could machine it using only the tension to hold it, I felt sure the end would grab the cutter and fling the thing out. Brilliant video thank you

I have absolutely no use for a Clupet Piston Ring - but it was very interesting to see the engineering problem and it's solution. You never know when something like that might come come in handy. 🤣

Discovering this channel is like finding diamond for me! I'm amazed, amused and stunned! Thanks for sharing!

Damn it just pulled me in. Needed to watch it. Thank you for this greay video.

Very well explained and fascinating. Thank you.

As a retired Machinist that thought he'd seen it all, I Actually Learned 3 or 4 New Tricks, (or New to Me Anyway). Liked and Subscribed.

One of the best videos on KZfaq

chris, totally incredible and a great lesson in engineering ,should be taught in the national curriculum

A day without learning is a day wasted. I learnt something new today. 😊

I am so impressed the amount of work your doing by hand, unaided by jigs, or work holding.

very impressive work, never seen that before

Engineering at advanced level a true specialist.

Outstanding job. Very impressive process. Certainly a piece of Art. As a builder of engines, I have never made anything like this. Thank you for sharing the process. Just found your channel. Just subscribed to your channel. Take care, Ed.

The KZfaq algorithm served this up to me and I'm so glad it did.

Hi Pete, I'm new to your post but glad you have come up! I've often wondered how to make Cluppet rings, now I know. Thanks for sharing 😊

wow! amazing work! thanks for the video Rich

That is a labor of love.

Lovely stuff, Chris. I did an engineering apprenticeship from school and spent 19 years as a scientific instrument maker, making all manner of things using a wide variety of (non-CNC) workshop equipment (Jack of all trades!) - from design inception to testing and refinement and everything in between. Watching this video has really stirred up some feelings: for the last 19 years I've been doing a (largely) non-workshop job managing a lab (still technical but not so hands on), as it was the only way to 'progress my career' (i.e. earn more money), and yearn for the simpler days of using real skills to actually make something useful (and not manage people, which I now realise I am not suited to). I'm now 54 and this video is inspiring, helping me realise what makes me happy in work, maybe a change of job is to be considered. Anyone need an small batch, slow but very accurate, machinist?!?

What to say! Jaw droppingly amazing! Just a shame very few future engineering apprentices, will ever achieve such skill, precision. Amazing. Keep up the good work👍👍👍👍👍👍

Great video Chris, I think you have discovered a new format if the number of views are anything to go by. I for one would value other workshop technique videos if you want to make them. Keep up the great work.

Id never heard of Clupet rings until this video. Interesting.

That is very cool! Nice video.

I absolutely love mass production and machines capable of producing thousands of parts per minute, BUT, nothing will ever be more impressive or astounding than hand crafted parts like this. Fantastic work!

That was absolutely fascinating, thanks

Aerospace lathe guy in the US here. Couple of really useful techniques I've never seen before in this video. Thanks for showing your process. I hope these skills survive us.

Now that was interesting! Well done!

I particularly enjoy the easy going mild tone of the narration, I suspect you are one of those craftsman's that even when faced with failure (like a ring snapping at the last stage of fabrication (cause it's no fun when it snaps at te start)) just shrugs it off and starts over

Thanks a lot! You've made a masterpiece! Even if the technology was invented 200 years ago, you resurrected it! And taught me.

Excellent film work, editting and commentary. I was on the edge of my seat the whole video. Good show Sir.

Absolutely amassing machining on such a small delicate part!

Absolutely beautiful end result. I'm tempted to make one of these just to put in a glass cylinder and stare at. Interestingly, how you tension the ring and close the gap is much like how coiled electrical cords are made- heat treated on a mandrel, then flipped over to tighten the coils.

Machinists with this type of skillset don't get paid nearly enough and are taken for granted. You have machinists that only want to know barely enough to do basic operations. Then there are machinists like you who know how to overcome any obstacle to make the impossible. I'm subscribed!

Seriously impressed. Thank you for showing us the process.

Nothing better than watching a true craftsman at work, as shown here. Quality.

You have no problem expressing your self. Nice work!

Way to go! Thanks for the pleasure of watching a very skilled machinist!

I have been making stuff for sixty years, its not often I get to see something new. Thanks mate this is cool. I have made piston rings before and use the heat to get the size and shape desired but you had detail that I have not seen or done before. Thanks, you made my day. Nice work too by the way.

whoever was the first person to figure this process out was a genius

Now that was impressive, making your own piston rings. So I'm sure you bored the cylinder's and machined new pistons too. I'm now a subscriber to your channel. 👍

Great Job. Congrats!!!!

Its like a fancy keyring !! 😏 😎👍☘️🍺

Fascinating, and such clever engineering that people did! Well told and shown, thank you!

That thing is insane! What factory manager, ever, decided he wanted to use those things?

Terrific job. If one were to charge all one's time making this special part plus materials plus the prodigoius intellectual capital involved it follows they would be expensive parts, and so they should be. Well done Sir and thank you for sharing.

Incredible manufacturing skills sir I enjoy every minute of the video.

Outstanding I had often wondered how these were made Thank you

most impressive... I'd be unable to have that much patience.

Just waauuw, I saw this design quite som years ago with a friend who made them for his living. He didn't say how they were made but they were gas tight or steam tight. And al the time I wonderd how he did it. Thanks for the really good and patien video. 💟❤️💖

Great to see old school machinist making parts that push the limits. I’m an old manual machinist but would not have been able to figure out how you made that. Now it’s stored on the internet for future machinists. Well done. BTW you sound a lot like Ronnie Corbett 🤠 Maybe that’s simply because I’m in Australia Great video

Absolutely fascinating to watch how they work, and how you managed to manufacture them.

Fascinating work. I admire your patience. Bravo.

That was very challenging to say the least , so easy to screw up . Well done.

Thanks for showing that great amount of craftsmanship ! Greetings from Germany

What a genuinely lovely bit of work - subscribed

Just amazing

Great process, thanks for sharing

quite impressive. The whole flip it inside out bit and then back round was really something to behold. Nice work.

Oh, I will be using every bit of you knowledge sir! Thank for sharing!

Excellent work! Thanks for sharing.

Love your work. I learned so many tricks regarding how to hold stuff while you machine it from this video. Good stuff.

This video ticks all my boxes. I think you've got some serious entertainment potential for us hobby machinists.

Happened on this by chance and I’m hooked so much patience and skill absolutely brilliant

The bit many people would not consider is how long this all actually took. With shop rate of say $100.00 per hour the ring is possibly about $400.00 - $600.00.

Salutes to the Master! I have spent lifetime as a tool room engineer, and yet learn so much from you!

"Now just 7 more to make". I've skimmed through the comments and can't see anyone else asking, how long did it take to make 1?

Great craftsmanship!!!!

That was truly amazing. Great suspense when trying to turn that inside out , and then back. . I know how easy that could just snap.

I don't plan to make any piston rings but I found this very interesting anyway.

An Intricate job

Fascinating! Thanks for showing the process so clearly. A cunning design.

what a brilliant job! incredible amount of skilled work is needed for such a part

Absolutely fascinating bit of technology, nicely done

Sir you have got to be one of the best craftsmen i have ever saw.

Lovely video Chris! Nice job on that ring. 👍