Your setup was so clear that it was immediately easy to comprehend. Good teacher.

@chowderwhillis9448

3 жыл бұрын

Agreed, reminds me of the old Docs from the 40s explaining planetary gears transmissions and rear differentials

@lawrenceoatman4464

3 жыл бұрын

Years ago there was a Visible V8 model that had a starter that consisted of a can motor that turned a sun gear that meshed with 2 planet gears. The planet gears meshed with 2 internal gears with different tooth counts. One internal gear was stationary and the other one was connected to the starter pinion. The starter pinion meshed with the engine flywheel.

@jamesbizs

11 ай бұрын

He started explaining, and I couldn’t understand why he had such a hard time understanding it in school lol. It was so simple.

That's the best explanation I've seen so far. Took a good deal of effort to setup.

For years I have wondered how robots with compact reduction gear assemblies were able to work without backlash. I had always assumed there was a sun gear assembly inside, so it never occurred to me it was a "harmonic drive", which I heard of but didn't grasp the meaning. I learned so much today and it was awesome. Thank you very much, I needed that! :)

Super great explanation. One would think that the flex spline gear would fatigue over a short time, but they're so widely used in so many applications that it must not be an issue. Thanks for the great video demonstration!

Shared this video to my robotics class. Far and away the best video explaining how these drives work from the 5 I watched before this.

I have never even heard of these mechanisms before but I'm super glad I stumbled on this video. That was fascinating!

This is the clearest demonstration and explanation I've seen in a long time. Thank-you.

Great explanation. Now I understand the mechanics behind my new telescope mount drive. Very impressive!

goes from stories and anecdotes about harmonic drives to explaining them at 2:00

Hands down ...the best video I have seen on harmonic drive.

This was fascinating. I've seen it explained a dozen or so times but this is the first time I've actually understood it. Thank you!

I understand it immediately after your demo with those straight gear. Very clear explaination.

We use these drives in our surgical robots. Love the clear explanation and linear props to illustrate the basic physics. Thank you.

Thank you for the clear demonstration of the harmonic drive!

man this was a perfect explination, very good job! amazing drive motor design... the minds that come up with these things

I've read how this drive works multiple times but never were able to visualize how it works. It was a mystery to me up to now. Great teacher!

This is the best explanation of this mechanism I've ever seen. Thank you!

You explain extremely well! And your pronunciation is so clear. Cheers mate!

Brilliant explanation, thank you for the clarity! This concept is really flexible (pun intended!)

I appreciate the clear explanation and effort of building the demo rigs.

This is the most amazing and useful video i have seen in a long time. Thank you for explaining this. I was really struggling to understand exactly how it works. You are an awesome teacher.

This is an excellent video . I was having serious difficulty understanding this drive and your explanation brought it all together for me. I commend this instructor profusely.

Best harmonic drive mechanical explanation I've seen (out of at least a dozen I've come across)

Terrific illustration. Thanks for posting the video.

I had a great “Ah Ha” moment about 6 or 7 minutes into the video. I’m a now retired electronics technician who used to work in the production of printed newspapers. Equipment from a company called Ferag used harmonic drives and when we were trained on it the instructor told us what it did but couldn’t explain how it did it. To him it was a magical engineering marvel. In the years that followed we repaired them quite frequently. Usually the Flex Ring would crack and we disassemble the unit and replace it. I had a fair understanding of how it worked after working on them but you, my friend, brought it all together. I’m going to forward your video to my former coworkers who still have to deal with it. I’m sure they’ll appreciate it. Thank you.

The best explanation of this drive. Point! Greetings from Munich, Tom.

I can't thank enough to the person explaining very beautifully the concept of harmonic drive so good video ❤️❤️ love it it just instantly clicked in my mind how the mechanism works after seeing the demonstration

This is a great explanation - well done!

Thanks for the explanation. When I took aircraft maintenance our instructor had us make our own vernier scale using two pieces of paper with marks on their edges. It opened our eyes to the concept of a vernier scale. Later we had to manipulate a vernier coupling to change timing which was very simple for us. This differential of gear teeth I instantly understood from that course I took over fifty years ago.

It looks like a perfect job for a wire EDM machine. Great explanation. Thank you.

Man i wish i had a teacher like this guy, school woulda been great

I appreciate the effort you put on to explain. Well done!

Excellent, thanks for taking the time to make this!

Excellent demonstration! Thank you so much!

The explanation is so clear and fantastic, thank you!

Thank you! Wonderful demostration!

You Sir defogged my mind in 12 minutes on harmonic drives, THANK YOU.

Awesome Demonstration, you wrapped up the idea in a beautiful simple was with many tools

WOW What an amazing explanation. Thank you so much.

In the '70s, as a 12 year old, I had a Visible Wankel Rotary Engine model which was driven by a planetary gear harmonic drive. I always assumed that this was how it worked, I was never sure until I saw this.

I have heard of this but had never had an explanation. You provided a very good explanation.

I work for Harmonic Drive and it really doesn't surprise me that these things last. Much care an precision goes into making these.

Such an amazing demonstration!

Amazing gears. Thank you very much for the clear explanation.

Clear explaination and great video. Thank you

Best explanation ever, thank you !

I must subscribe to the channel. Immediately and deeply attracted by the awesome demonstration and teaching. Thank you!

I finally understand harmonic drives. In 12 minutes. Man that's stellar.

Great teaching! I have learnt a lot. Thank you.

This guy is a great explainer. Thanks for the video.

This video is incredibly well presented.

Great explanation. Thank you for the video.

OMG THANK YOU… this actuator type has been _wrecking_ my brain for the last two weeks!

Wow, you're a great teacher, your video is terrific and I now know something completely new about gear drives. Years ago I got a fanuc welding robot arm and was amazed at the zero backlash on the joints but never knew why it was possible until now. As for how to get 2 more teeth with the same pitch, it's hits me now that the outer ring is naturally LONGER than the inner one, hence can have 2 more teeth in its' path. However, sizing up the tooth depth to accomodate the mating, etc is a challenge.Thanks for this explanation and I'll look at more of your videos in the future.

Excellent explanation, thank you very much!

Zero backlash & fixed timing... 2 great attributes for a gearbox... 🤨 a lot of people don't realise just how important backlash , or rather lack of it , is.. anyone with a milling machine who trys climb-cutting better have NO backlash in their table feed... 😰 Great description, the use of the straight racks initially helped greatly to understand the theory behind these rather exotic & quite expensive units... 🤗 😎👍☘🍺

@TheRainHarvester

3 жыл бұрын

When you say, "fixed timing" do you mean the input side is directly proportional to the output side? I saw cyclonial might have a problem in this regard ( because the input side to output side is not strictly linear because each teeth engaging is not directly proportional?)

Very nicely explained. Great presentation!

New subscribers earned ! Much love from 🇺🇸and 🇨🇦

Best explanation I've ever seen!

Thank you for an awesome explanation.

Best explanation and drive model ever!

Excellent explanations !!!

Awesome lesson, many thanks 👏👏👏

thank you for an excellent 👍 class, I have never seen a harmonic drive in rl, but now I know what it is. greetings from Cape Town South Africa.

Many thanks for the demo and nice explanation.

Great model and explanation.

Beautiful simple explanation.

Been wondering how that works for a while. Thanks for making the video and explaining it

It's so excellently explained! God Job!

Awesome explanation. Nothing to say other than many thanks !

Thanks for the informative video! I didn't know I was curious about Harmonic Drives until I started watching your video. 8)

This is an amazing explanation. Thanks.

Thank you very much for the clear explanation! Love your videos

Brilliant teaching, well done!

Love it!!! I need to make some of these but specialized use.

Your explanation was very easy to understand. Thank you

Easist tutoial that I 've ever got.

thank you for this awesome explanation and demonstration

Very well demonstrated. Thank you

Outstanding it is Crystal clear now

thx for this very brief explanation. it gives me clear direction where i hv to go for my arm. thx alot :)

This is how the Sumitomo Cyclo drives work. Very interesting and well done

Thank you. I learned something new today.

Fabulous demo and lecture. Liked and Subscribed.

Great video, man.

Really well done!

Fasting drive and very clear explanation thank you!

Thank you so much for this video, very well done!

Thank you! Wonderful explanation

Great explanation! Thank you!

Great demo!

You are a great teacher, thank you.

Glad to see you up and running again. Be well.

Considering buying a telescope mount that works on this principle and wanted to understand it. Your video helped a lot. The advantage of very low backlash in astronomical mounts is significant, as well as the reduced need for counterweights on the mount. Thanks very much.

@lizards821

2 жыл бұрын

Ha! We must be looking at the same new ZWO mount! There are also others on the market that now have me looking into this tech more. This video explained it perfectly.

@cmahar3

2 жыл бұрын

@@lizards821 You're right! Check out the cloudynights discussion. It's the PEC that's inherent in these drives that convinced me to not buy it. Looks like a good mount for visual, but not for DSO astrophotography, which would be my primary use of it. Leaning toward the EQ6-R Pro when they come back on the market.

@lizards821

2 жыл бұрын

@@cmahar3 yikes yeah spending $2k for a mount that cannot really do dso is kind of a bummer, especially considering the eq6r pro is less than that. Cuiv the lazy geek here on yt also has some videos on his as well.

@cmahar3

2 жыл бұрын

@@lizards821 Right? All DSOs aren't out of the envelope of this mount, just the small dim ones requiring focal length longer than 900mm. OTOH there are literally no EQ6R-Pro mounts available in the US or Canada right now due to supply chain issues, and there won't be for months.

Such a beautiful explanation..

Great video! Thanks!

Amazingly educational, I 100% get it now

Sir, you are a life saver.

Wow you have explained it so well, the best, the best sir

that was interesting. never heard of a harmonic drive but could see how durable and long lasting it could be. thanks for the info!