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Is it possible to have a planetary with a 1:1 ratio? Like if all you actually want to do is reverse the rotation of the sun gear with the ring gear, but not change the rpm ratio between them?

Thanks… can you explain on manufacturing of Ferritic Stainless Steel from iron ore

I have an exam on kinematics tomorrow and you just made my life way easier! Thank you!

Rotational speed (n) = 2700 rpm?

what a great overview of fundamentals of gears professor, thank you very much!

Part 2? 3? 4? 5? 6?

5/4 rad would be sufficient for me. A little too complex for me. I'd have to sit down and look at the details. I guess that's why we're here.

Thank-you again for more excellent content.

Thank-you for this content. Excellent!

Thank you sir

Thanks for the video. Great revision on metallurgy. I did this as a qualification ten years ago. I still have all my books.

Can a damaged or bent motor pulley cause vibration?

should the specimen has to be a defined shape and size?

Thanks so much for this three-part series. 30 years after college math, I ran into a practical situation with an ODE. You made it possible for me to both tackle and understand the problem.

Can i use little law to show inventory number between milling (station1) and welding (station 2) if i know the welding throughput rate and cycle time = inventory ?

Great video. THank you

Informative video, and the sound - vin diesel (need for force) feel

very nice. i like

Damp, damping. Not dampening , that’s to make wet.

Thank you!

Do you happen to know what water tanks is it made out of hot rolled or cold rolled and which one is it better to make it out of you know just for a simple water truck tank

Could you please recommend me best book for statistical quality control.

One other thing that minute 951 you said that putting the part on the three points eliminates the ability to go up and down it actually only illuminates the possibility of going down you can still go up, so could you explain that please

Hi Professor Cummings at minute seven you talk about the 321 rule and you have 3A, 3B, 3C. you seem to refer to them as three datum planes…when actually they are the same datum planes… so why would you call them ABC when they’re all co planer?

Thank you for this video

Nice explained

Great Works！How do I pay to watch the previous class2~6? Thank you

dude, you're dope.

I am trying to figure out if Hot forged tools vs. Cold forged tools are better. For example, socket wrenches: Gedore sockets are hot forged, they claim this is better than cold. Hazet sockets are cold forged. They claim theirs is better. (Hazet have a lot more money as a company and produce more consistent looking tools than Gedore, but are they stronger???). In the video you say hot rolled is stronger, but you also say cold rolled is stronger. So which is it? (I suppose this is like asking is Lafite '59 better than single malt whiskey). Obviously both methods work very very well because both of these German tool companies have thousands of users in Aerospace production and maintenance where money is not spared in hand tools (because a problem caused by cheap tools is infinitely more costly, so they actually spend more on tools to save money).

what a terrific course

thank so much sir, this really came handy. it is in this video that I have also understood the projections. Grateful

works thankyou very much!

You have turned the table around for keen learners with your highly expressive and organised presentation on the Part One video. I am looking forward to listening to the Second chapter on this. Thank you!

Why is there music playing in the background? It’s kind of distracting.

Great video... Not to critique the expert, but from what I've been reading, first angle is actually more common in Europe.. Third in the US...many thanks for the well laid out video!

You are explaining the process from the basic. It can be understandable for everyone

so far this actually the most inclusive about all the properties between the two types of steel that I've found so far. I have an interest since I'm a welder for a company producing flammable liquids containment solutions and deal strictly with coled rolled steel for its finish and strength over hot rolled

This solved my physics doubt of whats the difference between these two types of integration. Thanks

Thanks a lot for the tutorial which is very helpful to understand the difference between the two. What about cold drawn welded tubes? Is that the same process or part of it? anybody has a link to a tutorial for such process?

In the details you the blowup should be 2/1, not 1/2.

The right side view in the first angle projection... The inner-circle should be a hidden line.

Hello Professor Cummings. I am a training coordinator at a global manufacturing company and we are interested in using this video as an instructional tool in one of our internal training programs. Would you be able to grant permission to use the video?

Doc, no matter how many tines I watch this same video, I continue to get value from it. Thank you sir, had you would have been my instructor back when I was undergraduate and graduate school I probably would have gotten my PHd.

most people say things like the driver divided by the gear being driven , they dont say +x na/nb

This was helpful indeed: very often some "gurus" teach others math just for math purposes, without practical application and it kinda sucks

Mixing terms iron and carbon

P R O M O S M 🌹

this channel is *amazing!* much thanks.

Even after years, this video is still gold!