How Gears and Pulleys Work: Jeremy Fielding 103
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- Опубліковано 11 чер 2024
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Notes:
Code : github.com/jengineer1/Clock-m...
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How planetary gears work - My favorite example
• M47 PATTON TANK PLANET...
Technical corrections
Nothing yet - Навчання та стиль
This world needs more men and fathers like yourself. Have enjoyed your videos over the years.
Indeed! Same here
Totally agree. Not sure why I keep getting unsubscribed from you, but don’t worry - I’m diligent and I re-subscribe as soon as I notice
@@0ddSavant t3
Too true. Like "from the goodness of [his] heart". Probably the first time I've said this about anyone on youtube. A real "teacher"
Can you imagine the great engineering lessons his kids are getting? And learning in a fun way!
This gentleman is one of the most humble individuals on UA-cam..so knowledgeable and articulate and great communication skills ..if he worked in a college or other institutional setting he would surely win a award.
Just thought I should drop a tip for cutting tubing. A plumbers pipe cutter, it's made to cut copper tubing but also works for brass, bronze, and aluminum without a problem.
And you can put the tube on a suitable drill shank to avoid making that lip
I use the same on small diameter stainless steel tubing. Note that a pipe cutter will still leave a burr inside that you may need to clean up.
Be careful not to deform the tube when using a pipe cutter.
Pipe cutter will leave a small collapsed area around the tube making it so the pipe won’t fit. I’d suggest cutting the brass tube with the aluminum rod inside, which will reduce collapsing and burrs and removing the aluminum rod will use the burrs.
I would cut off a piece that's too long with a hacksaw, so as to not deform the tubing, then clean it up on a belt sander to both remove the burrs and get the length correct. Setup a fence on the belt sander table that's perpendicular to the belt, and away you go. Just slide the tubing against the fence and into the belt and take off as much as you need. Of course if you have a lathe, that would be better, but I suspect he doesn't have a lathe, otherwise that would be option #1 from the beginning
In all my years of physical science classes and tooling around my work shop, I have never had gears, pulleys and see-saws compared so beautifully to torque and power. I knew all this stuff, but THANKS to this video and your explanation, I now FEEL the science and the math meshing in my brain.You turned it into intuition.
I am not an engineer, but am a high school design teacher. I've shared your videos with my students before, but THIS one is one of your greats. THANK YOU Mr. Fielding!
@wildfire405 > Years ago after nasty lumbar fusions, they stuck me teaching at UTI after years of fixing vehicles. I knew one concept requires three ways to explain it. We started with automatics & torque converters. We did the normal fan pointed at fan, then they lost it a torque multiplication. I told them say I have a 5lb steel ball on a 5 foot chain and swung it overhead and hit your hand. It would hurt? Yes. Ok, now the chain is 10 foot long swinging at the same speed! Now it hurts, but how much more? The few that had a hard time understanding how turning the fluid and redirecting it made more torque, now got it.
Just like Jeremy’s teeter-totter example. It take different explanations for some to get it!
I was taught a screw became a bolt when a nut was applied. Some screws never become bolts. Great content as always!
What if the nut is captive?
I thought a screw can create its own threads in an object while a bolt will go into already created threads (discounting fastening and unfastening into the same piece).
Alternatively, whenever I search for a fastener online, the common nomenclature will be opposite of what I think it is (I swear half the battle in finding something is just figuring out what it's called).
@@quintessenceSL Isn't that a special case - self-tapping screw? As opposed to machine screw that goes into a cut metal thread?
@@SianaGearz Most machine screws I would consider bolts (you need to cut threads for them, either by tapping or a nut).
Consider holding two pieces of wood together. The difference between screw and bolt are pretty obvious then. My point being it shouldn't matter what you are fastening. It is in how it functions.
Hence my confusion in trying to find fasteners online.
@wade reed I love that definition. I usually look at the end too, screws are pointed and bolts are flat for the exact reason you say. But I don’t think a screw should ever become a bolt, it’s designed to be driven in verses threaded into a nut 🔩
The combination of fatherhood advice and engineering is unique and beautiful, and it's just a joy watching your Videos! I hope i am gonna be a dad like u one day :)
It's always fun to watch a self taught person excitedly explaining something that they love to do. Mad props on the build.
Love what you're doing to showcase your inquisitive mind and articulate 'how' you think. It's vital to education and not everyone (aka me) can always explain it as well.
Thank you!
The greatest praise I can think of is that you are a good father! I plan on watching this with my daughter.
Dude, your life makes me smile. Thanks for the gears.
Duuuude, I found your channel a week ago and it has really helped me break through the most recent threshold in my journey. Been a 5 year trip of self discovery and pursuing interest with passion. I hope to be where you are in another 5! Blessed be the man that helps himself! Best of luck, whatever you’re up to!
5 minutes in and I'm thinking a multi-speed bicycle would be a great visual aid for this. The arm (length from axis to pedal) remains a constant. As the gearing changes. The force required to move the arms increases or decreases, while the resulting speed increases or decreases depending on the gear ratios.
Excellent construction, video and fathering. My kids were involved with many of my projects and was such a joy. Now I have my granddaughter assisting and sometimes supervising me. 🥰😉😊
Mr. Fielding, can't remember if I've ever commented but today I am compelled to thank you and say it is amazing how you have employed the talent God has given you and I really enjoy your videos. Especially your kind and pleasant demeanor is refreshing. God bless you and your family.
I'm an atheist so I'm not sure where his talent came from but I just like how you started out with Mr. Fielding. Upping the level of respect on the internet is always worth it. Thank you!
@@christystockman8643 Very kind of you to say so. BTW, you know no one but God can be an atheist, as only God knows everywhere God can hide. Thanks again for you very nice response.
@@fireballxl-5748hello..can you describe your 'god" to me outside of any religious book ? Is it masculine or feminine ?is it one or many..does it have a chosen people ect..I will be wating for your réponse.. thank you
I just told my husband last week that I need to learn about gears! Thank you so much for this! I'm going to check out those links after I show this to him. Have a blessed day!
Head over to Mathias Wandel's site to check out his gear pattern calculator.
Matthias is another great UA-camr to follow.
I'm just curious, how did you suddenly discover that you need to learn about gears?
As everyone in the comments are saying, that was an amazingly intuitive explanation of gears. Genuinely I can, as someone has said before me here, have it mesh easier in my head because of the subtle understanding I now have for the "simple" explanation you gave, I love these moments, a feeling of mastery.
Love the content and how you involve your children. "Here's what I need..." to your son instead of the "don't touch" and "you're doing it wrong!" that I grew up with
Gears are beautiful!
I love this man a stupidly high amount. i dont think i can live without his videos.
When you went from talking about levers to talking about pulleys, I began to understand how the block & tackle can increase the mechanical advantage. A pulley might be considered an infinite series of levers, the fulcrum being the center shaft. The two sides 90° from the "fully enroped" or "fully belted" end are where the work exchange happens, or opposing ends of the "lever". Thank you kindly!
Jeremy, you should be very proud, you are building a true legacy.
You're such a good dude and very smart too, world needs more people like you.
I hope your children know how lucky they are, and I love to see how proud you are of them!
I subscribed as soon as he started talking. I cant not have this voice in my life.
Jeremy, this is a great explanation of gears and how they work. I enjoy watching your videos with my grandkids. Keep up the great (and interesting) work!
I'm always blown away by the quality of your content. Thank you for the hard work and love you always deliver.
Regarding screws v bolts, there is a podcast called Engineering Commons that came to a conclusion that screws are intended to thread into a material, and bolts are intended to be attached to a material via a nut. I have always liked their determination as it is dependent upon the use case.
I always have to play cool when my daughter shows interest in making. I get super excited to teach her new things. She's only 7, so her attention span is somewhat limited, but for as long as she wants to learn, I'm thrilled to teach her.
Its so cool to see the family working together. Thats what its all about. Youre a good man.
Oh yeah...the clock and gear explanation gets an A+.
You explain everything better than anyone else I've ever listened to. Either on line or any instructor I've ever had. Keep up the good work
my son is 2. and I CAN NOT wait for him to be old enough to help me in the shop. congrats on the family time.
Based on your videos, I can tell you are a good father and good man Jeremy. Keep up all the good work.
Gears are awesome and all but I was way more impressed how your son listened to you without any questions at all. I bet his teachers are so happy he is in their class.
You are an inspiration, and a demonstration that talent, determination, and work will get you to amazing places. It is useful to note that for most people a standard education is an easier way to get there.
Bolts and screws are interesting. The most common screw has wood threads (sharp to bite into unthreaded softer material or sheet stock) and a head with a recess (slot, square, hex, torx..) to drive it. The most common type of bolt has threads designed to mate with a pre threaded metal nut, and has a (usually hex) head driven from the outside.
The head seems to have priority, in that a machine screw has bolt-like threads but a recess in the head. A lag bolt has wood threads but an outside driven head.
So my impression without looking it up is that the driving recess in the head makes a screw, while the outside driven head makes it a bolt.
I was taught that (machine) screws thread into a threaded hole while bolts are tightened with nuts (i.e., no threaded holes in the parts they fasten). I think I recently reread this in an Engineering text, but I can't guarantee that.
@@bobvines00 That sounds right. My suggestion was based on usage, but technical definitions are not always followed colloquially.
@@bobvines00 Ehh... I've bought machine screws (according to the box) recently and used some with tapped holes and some with nuts. What you say suggests these identical components from the same box can be either screws or bolts, depending on how they're used. That isn't necessarily wrong, but it sure would make things confusing if I had to go to the store and ask for a box of both screws and bolts that happen to be the same thing.
I can also think of many examples where something is called a bolt even though it screws into a tapped hole. I don't think there is a precise definition of a screw compared to a bolt, but I think yours is pretty far removed from how people would usually determine which is which.
@@chitlitlah Yes, machine screws can be used either way. If I remember correctly, the terms bolt and screw are often used depending on how they will be used, but I think there are "technical" differences between them that most folks don't need to bother with. Typically people don't use the "correct" terms, but since everyone makes the same "mistakes" (me too), they are able to easily procure what they need.
@@bobvines00 Yes, the technical difference is which thing you turn to tighten it. You turn the screw or you turn the nut. Lag bolts are actually lag screws. Hex bolts are often used as machine screws. Carriage bolts are practically impossible to use as screws.
Hi I am 58 and just leaned the rubies cube and scan so it every time I pick it up now.im to old to go to school and too poor to have a good tools.i just make a still press. You are a great teacher and a good human being at far as I can tell. Thanks for all our knowledge.
It's been 25+ years since I designed a gear and you just reminded me of all those times I sat there pretending I knew what I was doing as an engineer walked by. I love the clock, by the way.
You remind me of my late brother-in-law. He was also a great father. Thanks for the fantastic content!
Sometimes you can chuck up your tube or rod in a drill to cut, file, shape. Sort of like a hand-held lathe. You can also use it to spin a rod against a grinder to quickly make nicely shaped handles, etc.
This is great news. The changing rates of time flow has been known for centuries. Time flows quickly during breaks but then slows down to a crawl just before quitting time. A clock that compensates for these time flow anomalies is something many people would buy. Good luck with your new clock business,
As an auto mechanic I deal with a lot of this on a regular basis . I really like how you are able to explain all this in a way that most people can follow . Great job!!
Hi Jeremy and family, sincere greetings from New Zealand. My understanding is that a screw (or set screw is threaded all the way up to the head: a bolt has an unthreaded shank portion. I enjoy watching your videos very much.
Awesome seeing the kids help you out.
You are so right about them growing up so quickly. Love this clock thanks
I always thought screws are the ones that need a screw driver (Philips head or flat head) and a bolt has a hex head or some other shape and you would use a wrench or a key to turn it
Yeah, but there are socket head cap _screws_ that take an allan wrench. And if you say "screws are pointy and self-starting", then the counter example is machine screws and lag bolts. The only conclusion is the actual problem lies with the English language, yet again.
Amazing work of art. The "that's my boy!" non-smiles are some of life's best moments. Thanks for sharing this!
I miss listening to my dad talk about all manner of engineering. (He did both electrical and mechanical engineering with pulp and paper applications). I greatly appreciate your skill both with manufacturing and also educating. Thank you for sharing your talents! And kudos to your kids for keeping their internal gears working!
I love when you mention being proud of your son! Father son bonds are so special!
As always this is an OUTSTANDING Video Thank You!!!!!!
Thanks man! You are a champion. I was blown away and very encouraged at the same time that you are self taught. It give me more hope that I could do these awesome projects too.
difference between a screw and a bolt is, screw is designed to be driven into a medium or across two mediums to create tension within, while a bolt is designed to be paired with a nut and washer to compress two mediums between the head of the bolt and the washer (or nut if no washer is used), via a pre drilled hole in the mediums. both have similar uses however the way they are put to use is how they are different.
the easiest way to determine if something is a screw or a bolt is typically by looking at the hole its is going into, if the hole has threads then its most likely a screw.
(also take this with a grain of salt, I was not there when the books were written.)
Your most awesome quality is your family!! Good on You!!
My oldest daughter just got her first job too. When the next schedule comes out, she'll have her first day. It's one of those 'no one prepared me for this' moments.
Variable pitch gears are really cool. Thanks for showing that.
Good job and Well Done Sir! This kind of engineering is what makes projects happen with people happy to do the work. Your children are taught well I believe. Maybe they were just behaving for the camera, but I doubt it. That young man writing code for you is smarter already that 9/10 of the population, including myself. You’ve done well for yourself and your Family. 👍
watching you make this really makes me appreciate how difficult it must have been for watch makers using hand tools to make working clocks. AND they're so much smaller than this... insane
Thanks for addressing kerf and showing your test pattern! Important, practical consideration and verification.
Thanks for the video Sir! I enjoy your good skills of communication as well as your creative mind. Excellent to encourage newcomers along. One thought from my experience was that a press fitted bushing will reduce the ID of the bushing. To use this to my favor, a reamer or a barrel lap could be used to remove a small amount of material once the bushing is pressed in (so it's easier to hold it while reaming).
Yes it does... but you are talking about really tight fits on both sides at that point. I only needed enough interference to hold a very light weight part in wood. If I was designing a machine from steel parts, and needed to heat the part to press it in, we have a lot more to consider. :)
I remember having a clear plastic puzzle clock somewhat like yours as a kid. It had an adjustable pendulum and a main spring. I loved it.
Your "proud of your kid face" being the same as your "regular doing stuff face" is a good thing. So very right.
Beautiful project. Thanks.
You're a great dad. Awesome job engaging your kids in engineering! I love to see this. Great video!
Just wanted to say I love your videos and this has inpired me to design my own clock over summer. Thanks!
Always seriously enjoyed your work. Clocks are a big thing for me. Respect!
Beautiful device built by a masterful instructor. Well done, sir!
Don't know how I just barely stumbled on your account, but I'm glad I finally found it. Great work!
A tip for cutting the bushing material is to cut it whilst it’s over the pin material. In your case, slide the bushing material over the aluminium rod then cut it to size. You will possibly sacrifice some aluminium rod but it allows you to clamp the material and the cut will be cleaner.
Very nice video! I'll take my shot at the screw bolt question:
Screw - installed to a material with or without a pre-drilled hole. Usually pointed or cutting tip
Bolt - installed in a material using either a nut or threaded shaft that matches the thread pattern
Excellent video. Thank you, sir.
I wish I could hang out with this guy for just one day. So cool.
It is a thing of beauty. Well Done!
I always learn something from your videos. Great presentation once again.
Dude, you're awesome. I even appciated seeing the way you interact with your family, man.
I like how he changes from engineer to surfer when ever he says tube.
also fantastic video.
You're a fine teacher!
What a great dad!
Great work, Jeremy!! You're on the way to making your own version of the antikythera mechanism!
Another great vid. Gorgeous clock and fun watching you (and your son) move through the planning, building and hiccups. Keep on rockin'
Fun Sciencey Dad! The best kinda Dad! I wouldn't say the see saw was ghetto I would say you showed your kiddos how to be resourceful! You can make anything outta anything with a good imagination and some old fashioned elbow grease. Love your videos!! Keep it up!!!
What an awesome design, I love the planetary gear you have used, planetary gears look so cool.
👍👍👍
Loved this video! As far as the difference between a screw and a bolt, at least to my understanding, is that a screw is designed to use the material it is being driven into as its method of fastening, whereas, a bolt's fastening method requires a nut that clamps onto the outer face of the material through which the bolt is placed. So I would say the difference between a screw and a bolt is the method in which they secure to the material.
What if drill and tap a hole, would I the be inserting a screw or a bolt?
I thought that too at first (nut vs no nut), but then how do you explain tiny machined screws that they make nuts for? Or are they just named wrong? Lol
Firstly, excellent point. I think my definition for bolt is probably off as you would use a bolt for a drilled and tapped hole. However, when drilling and tapping you’re essentially making the material into the nut for the bolt. So, to refine my definition, a screw is designed to move the material and cut its own threads within the material. A bolt requires predefined threads, either within the material or externally with a nut.
The difference is which part you turn to tighten it. You turn a screw or you turn a nut. It doesn't matter how the threads are formed, wood screw or machine screw. A carriage bolt is a bolt. A hex head can be a screw or a bolt depending on whether you turn it into a threaded hole or turn a nut onto it. A lag bolt isn't; it's a lag screw. Not because of the threads, but because you don't turn the wall onto it. If you use an anchor bolt you turn the nut.
Excellent work.
I love your channel can't get enough of it
Just discovered your videos. Great job. I look forward to watching more of them and sharing them with my son.
Wholesome, glad I got recommended this.
I'm very impressed, great work!!!!
Really really enjoy the channel. Thank you
Awesome as usual ! Thanks for sharing 👍
Thank you so much, this was a wonderful video, looking forward to the next one! 😁
That is just an incredibly beautiful piece. Awesome.
Beautiful brother...loved it
Brilliant, well done.
Another great video. The difference between a screw and a bolt is that a bolt will have an interference fit with the hole and a screw has clearance.
You mags complex ideas understandable, nice work. Also the clock is cool as heck!
Beautiful project.. The only design critique have is that the hour hand doesn't really seem to stand out very well, and actually looks like it might also be obscured a lot of the time. A splash of color might help that though. Rather than redesigning the hand shapes.
I kept having the same thought. I was thinking I need to get a piece of oak and stain it so its really dark. We shall see. It is easy to replace once I make up my mind :)
@@JeremyFieldingSr You could always toast it to make it darker (Maillard reaction) right up to carbon black if you like (and it doesn't loose too much strength.
But strength shouldn't be an issue if it isn't part of the gear train.
Another great video. Well done, sir.
Excellent explanation!
You are genius. Love your videos.
Thank you ! Currently working on a art project that has gears on it and this is very helpful information!
I was going to go with bearings aswell but bushings seems like it would work in my application.
You need a small lathe. Then you can make little bushings without squashing them.
You can also make screws. And is you really want to, you can also make the nuts that make bolts what they are.
Lathe is definitely best, but I think he could make those small bushings with a belt sander with a table. Chop off the rough pieces with a hacksaw, then clean up the edges and get the length correct by shortening it on the belt sander. Just set a fence on the table that's perpendicular to the belt, and make sure the table is perpendicular to the belt in the other direction, and away you go.
Real nice build!
Great clip Jerremy