Building a Bimetallic Tea Monitoring Mechanism 

To try everything Brilliant has to offer-free-for a full 30 days, visit brilliant.org/ChronovaEngineering/. You’ll also get 20% off an annual premium subscription.

Fantastic is all that needs to said

You can mount the bell using a sort of cushion so it will have a prolongated song and not just *ding*

So british...

If Wallace and Gromit were into machining, this would be their first project!. Lovely project, masterfull cinematography, good narration👌

Looks nice, Im a clock repairman and whenever bells are mounted they are fitted with felt washers on the top and bottom where they mount. This prevents the dampening of the sound

Just as a little fun fact, bi-metallic mechanisms are used basically everywhere around us. Most of the time not in the form a strip but in stamped discs that can be made to snap at a temperature with tolerances of less than one degree. Every item in your house that has a heater inside will most likely have a bi metal snap disc, as they are called, in them as safety mechanisms or every simple kettle that switches off when the water is cooking will have between 1-4 of these discs in them. It's actually quite fascinating how they work and how they are manufactured and actually how few companies there are in relation to the billions of discs used all over the world

I can't express how much I love this. The amount of energy, time, materials and money spent on this, solely because you couldn't be bothered to use the timer function on your phone, is so out of proportion to the real-world benefit that it _has_ to be a pure labour of love. And I love that.

All that build up, and we only saw one demonstration of the finished product, and even then, it wasn’t a live-firing situation, but a test run with just water! I need to see this a dozen times with real tea!

Amazing. I had just returned to my computer after filming, my coffee was cold and this video was in my recommended videos. Maybe google does know everything lol. What an incredible gadget, thanks for showing its construction.

Proper English eccentricity. A superb and beautifully made piece of silliness.

A deceptively simple mechanism with an exceptional amount of thought and work put into it... I love this.

This is such a lovely piece of engineering and machining. It also demonstrates a physical phenomenon in a memorable and playful way.

Fine craftsmanship. This channel deserves more subscribers.

I almost expected Uri Tuchman to come up with something like this. A, sort of, pointless invention that still serves a unique purpose.

It's like a Rube Goldberg machine. An over the top elaborately constructed and complex machine designed to accomplish a mundane task. I absolutely love it! I enjoy fabricating myself and can understand the delight one feels when designing and constructing such a device. One time I saw a group of engineering students who, just for grins and giggles, constructed a machine with over 20 different operations that took 50 seconds to complete. The machine was constructed to place a stamp on an envelope. Marvelous!

If you isolated the bell from the pillar, maybe a few pieces of soft leather, it would make a far more pleasing ring. That is a beautiful machine, with the most perfect English need for existing. Thank you for sharing your time.

If you turn the inside of the bell (and a small part of the outside) first and then clamp it internally to do the outside there's no problem with the bell ringing. Did this when I made an about 300 mm "ships bell" in stainless as a wedding gift to friends some years ago. Do be gentle with the pressure internally though, the bell deforms easily but the setup is very stable as long as turning is made towards the chuck.. Sweet little project!

Wow , only a Brit would make this but also with great/quirky design and quality sir you have a new admirer and a proud Brit to see the talent that still exists in our country, brave.

As always, your videos are a relaxing break from the stress of normal life

*_This is soo Relaxing…_* *😌*

*This is Therapy For Eyes✨*

This is the most beautifully overbuilt piece of kit for such a nothing problem. I love it.

You could run a competition for the simplest mechanical or eletronic device that could do the same (maybe even the cheaper)

This is the best thing I’ve seen on YT in a long time. I’m just starting to learn how to machine, but this transcends my ambitions to learn.

thank you for sharing your work!!

Wow, it quite literally all comes together at the end. Bravo!

Realy nice contraption. I first assumed it should be a tripod or similar but the cup edge holder worked out well. I do think you could use a soft spacer on the bell to make it less rigid which will increase the amplitude of the ringing

Brilliantly eccentric, brilliantly executed. Mesmerising from beginning to end. ☕️👏👏

Fantastic contraption 👍. Love your videos, thank you 🙂

Doing something to help out those in need. Bravo! You're a real inspiration.

Absolutely beautiful work as always. Thank you for the great insight and inspiration.

Серьезные вы ребята как я посмотрю 👍

Thank you for sharing this!

Amazing, every home should have one. Thanks

The videography and craftsmanship are just excellent, but I totally wasn't expecting an amazing maths lesson. What a treat this video was!

This is such a beautiful piece of engineering and machining, thank you for sharing this with us ❤

Excellent camera work and a neat build.

Thank you for the inspiration!

Love me some restoration of precision machinery. Knowing the quality of your work it is going to be marvelous I am sure.

Woau, dude. Pure magic!!! Amazing work!

Для меня ваша работа одна из лучших на ютубе. Я сам токарь и не всегда чья-то работа за станком радует глаз. Но ваше творчество исключение.

Thanks Chronova, helps a lot!

Absolutely stunning work.

Delightful. I never considered lead content in brass before, I assumed the copper component was the concern. Thank you

Excellent toolmaking with very fine ideas. Hats off.

As a side benefit, the heat-sink properties of the mechanism will help bring your tea to perfect temperature faster!

I love this kind of thinking and it is beautifully done!

An interesting design and build. Thanks for sharing it.

Awesome build.

that lathe is so nice. when i initially saw this video in my feed i thought it was a Technology Connections video, since theyve covered bimetallic strip technology so oftenly lol. i need something like this for my coffee

You have way too much free time. And I love it!

Love it I’m a big rube Goldberg fan so this one ticks some boxes for me. Next time you do a bellish shape like that machine in inside first then fill it with hard meltable wax the outside won’t chatter as much you just have to be careful not too get it hot when turning.

to reduce the parts count invert the bell and catch the ball in the bell.

this was how its usually done during the industrial age, however nowadays software pundits will be up in arms over all-mechanical temperature alarm... great video production, soothing music, clear narration and process explanation. highly recommended

That is THE cutest drill press I have ever seen!!

Perfectly elegant.

well done, thanks for the video

I love it. I adhere to the comments regarding improvements to the sound, and I'm curious to see what will you make to put it after it's used 🍵

Excellent video! Your cinematography is top-notch! (And your machining skills are very good, too.)

Beautiful! Good use of human ingenuity.

Love it! Next step is the heating device to maintain 54C if you are called away for a while!

Quite pretty!

Brilliant bit of kit :)

You could have the strip release a watch spring and have the arm of an attached escapement hit a bell. It'll ring instead of dinging but it might be nicer than a loose ball

Towards the end of the machining I was thinking of all the ways I could reduce the part count and manufacturing complexity. Felt foolish when I saw how gorgeous and visually satisfying the final assembly is. Fantastic art that could only come from an improvised design, a skill I have yet to learn.

You really shouldn’t hard mount the bell but leave it free swinging on something like a spring where it can resonate and ring out like a bell should. Screwing it down tight dampens the vibrations and defeats the purpose of a bell in the first place. Other than that, nice work.

A very unique way to ring bells is how we do here in the estate of Minas Gerais in Brazil. The bell is rung by an internal clapper have a huge conter weight. It's initially held upside down and then pulled so it turns. Each turn it rings twice. After that it can either be held upside down before being "turn" again or be pulled for a faster rithm ringing. I'd like to leave a link but RU-vid doesn't like it .-.

soothing to watch ❤

Fantastic! Thanks for sharing

Really neat! Thanks for sharing, don't know if I want any brass whatsoever in my tea water though.

I love this! If you’re not already a member of the Dull Men’s Club you should be! They’d lap this up over there!

In terms of brass or other copper alloys being used with food, my dad used to used copper cookware back in the day in Iran (copper cookware was/is used worldwide, just his personal experience) , but it was always coated on the inside with a thin layer of tin. This was because uncoated copper would leech into food and its salts were known to be poisonous. Tin is less reactive and less toxic (possibly nontoxic), and the intermetallic bond between tin and copper is pretty strong. Maybe tinning could be an option for food contact?

Beautiful. I wonder if the bell's mount couldn't be altered to allow it to ring in a less dampened manner.

such an amazing work

Nice work. 👍 I like brass. We drink our tea from small, thin-walled tea cups in which it cools more quickly than in large coffee cups. Therefore, we don't have to pay attention to the temperature, but for us it is more important how long the tea "steeps" before you drink it. I come from East-Frisia (Ostfriesland), it is on the North Sea coast of Germany. We here are the *world champions* when it comes to drinking tea. On average, an East Frisian drinks 300 liters of tea a year. We East-Frisians have our own tea ceremony. "Prost Tee" we say. 😉 Kind regards from the North Sea coast 🦀

Great little project! One of these days, I'll be browsing your videos, and you'll have invented a working time machine with full build instructions.😂 I can't wait till that day comes! 😁👍

Nicely done sir.

This is great! The homemade bimetallic strip makes me wonder what you could do with a DIY bourdon tube, perhaps a large, exploded view barometer.

When I do knurling, I set the feed to ½ of the pitch of the wheels. That makes the spiral pattern in the knurl disappear.

look forward to your new lathe refurbishment videos 👍

I never knew that Heath Robinson used that level of precision!

Classic of the genre

Gives a whole new meaning to "My God, he loves his prefect cup of tea!" Thank you for these very interesting pieces of engineering!

Neat project! Given the ostensible purpose of submersion in a somewhat acidic liquid which is to be ingested, I do hope that the brass used is lead free, though.

You made great job and beautiful video thanks for this😎😮You are so talented mate

Next: A whole video about bell making to improve the sound! And make for a long, clear, resonant ring.

Copper and is alloys is usually tinned when used for cooking and storing food.

Wonderful! Could you put a spring under the bell to allow for more resonance?

Bro! Indicate your parts every single time, it's just good practice and helps covering mistakes. Even cosmetic stuff. Mistakes happen my dude. Its SOOOO much easier to machine yourself out of a bind if everything starts parallel, concentric and so on. For the bell, hold the bell horizontal and the knocker above on a pivot. Drop the knocker past the outside of the bell, ringing the bell and then hanging below after. Use a PTFE washer for a little drag to stop the swinging with a little tuning? Making the bi-metal move past a cocked trigger mechanism (only activated one way) would solve needing to pour first.

Such beautiful overengineering. Now how will next iteration look?

Good old by metal strip. I have had to remake these for vintage honda motorcycles and their automatic chokes.

I love these kinds of "over engineered" items that are made for a persons very specific and subjective need..! Yay!!! 😄 More stuff like this, please... 👍

*YOU'RE A GENIOUS, SIR!* _THIS IS NOT ONLY ENGINEERING, BUT IT'S ALSO DES BEAUX-ARTS!_ _BEST WISHES FROM COLOGNE_ مزيداً من النجاح و التوفيق و التألق *_BIG LIKE & SUB_*

"When an object is useless, it becomes indispensable" ;) Fine work !

You work well my friend

Other RU-vidrs: "We're gonna use an Arduino, Raspberry Pi, several LEDs, and a K-type thermocouple to make a tea temperature alarm." Chronova: Steampunk Heath Robinson Device.

the madman did it. he actually actually used the thermal expansion equation from physics class.

If you wanted something fancy and less practical then you could use the strip to trigger a marble machine which does all sorts of things - like ringing the bell and adding milk and sugar etc

Nice video and presentation. Is the bi metals in this video lead free?