GEARS - the Basics
Vložit
- čas přidán 19. 01. 2016
- Thanks for SHARING with your Fzx Teacher!
An introduction to gears from the simple machines perspective. Which are force multipliers? Which are speed multipliers? How do we calculate mechanical advantage?
This was an _excellent_ beginner introduction. I say that as an absolute beginner. Thank you so much. Fun, simple and perfectly clear. Thank you again.
I've been searching for videos to understand about gears and all I saw was scientific stupidity. ....lol until I saw this one, thanks very much you're a real teacher
lolol
Thanks. I thought the same and I like to simplify. There are some other good ones out there but I like mine the most.
What u said that absolutely right bro
What do you mean by scientific stupidity?
@@miguelitoantonio1950 we teachers tend to get bogged down in the tech speak and math oriented interpretation. It works for high end students temporarily but it doesn't necessarily build a long lasting understanding nor does it help the average person. That's how I read it.
6:01 Wow thats amazing. I moved around a lot as a kid so i never got a proper standardized education. Its amazing to see the math used and how simple it is and it gives the imagination something awesome to play with.
I appreciate this video very much.
“You just learned physics”, brilliant. I love how simply you broke everything down. They say it takes a genius to explain something complicated in a simple way, so I’m nominating you for genius of the year my friend! 💡
Thanks! Feynman taught me well!
Thank you! I'm 30 years old and finally getting this idea into my head
Took me a while too!
This was fantastic, but what I really need most is a practical guide to incorporating geears into designs for makers. Common ways to arrange drive shafts and how to pick the best gears to simplify designs and minimize friction. How to decide how many teeth you should have etc. There is so much to know and I don't know where to look!
Thanks you explained it really well and helped me understand. Great job!
I wish I had you as a professor when I took physics; you made it incredibly easy. I took it over 30 years ago but you have one more sub. Please do Lagrangian and Hamiltonian physics to boot please.
Straight to the point , easy to understand, thanks!
thanks for watching!
In 6:1 gear ratio, divide 72 by 12, and it equals 6, so you would know that the small gear is 6x faster than the large gear, this is useful if you are going to make something like a pedal spin dryer, which doesn't consume electricity, so you can increase the speed more and more.
Thank you for giving me new knowledge about gears , God bless 🙏.
czcams.com/video/_fssEu19q-E/video.html
Who else is watching for their OAR? Thank you teacher!
czcams.com/video/_fssEu19q-E/video.html
One of the best refresher I needed today. Having done recoveries during my service, I used to be sharp and quick when it came to calculations of gears or snatch blocks. Not so much anymore. Age is catching up.
I was just told that same "age is catching up" yesterday by a 60 year old friend of mine but I have forgotten things most of my life. In this case it might just be a lack of exposure to the material over a long time and other things to think about. Thanks for taking your refresher course here.
@@LRNFZX Worst is as you explained it, I knew exactly what you meant and where you were going with it. It's like the dust was being blown, on once a smooth polished surface, which once reflected my clarity. Life running its course. LOL
As a 12 year old this video is very helpful I’m playing a game called scrap mechanic and making a piston engine and wanted to learn about gears to help thanks
Gears, ramps and pulleys have one thing in common - they trade distance for power. That's the essence of what I've learned. Gears of course have other uses such as timekeeping, synchronization of machine parts, measurements etc.
hello, my question is if I have a target torque X N.m, and Y rpm for my driven gear, how do I pick motor for the driver so that input is enough ? Do i start by using whatever gear ratio to find appropriate torque input?
amazing video, nicely demonstrates everything. thank you.
Thanks!
Studying for the Navy OAR and I think this will be my ticket for a better score lmao
Hope it helps! Good luck.
Anchors aweigh, my boys!
Your explanation was perfect, thank you!
@@geeclan4861 thanks:)
About the 10th time I've watched this video 👍 Got the most out if it so far... 95% there
DAMN GOOD 👍
thanks for watching. Get out there and play with some gears so you get a better idea.
So if I am trying to multiply torque does that mean if I have a small electric engine that has an output of 0.15Nm continuous torque and I set up a gear ratio of 3 then the ending output torque is just 3x my 0.15Nm or 0.45Nm?
Such a valuable information you gave me sir in this video thank you so much 👌
My pleasure
Great demonstration thankyou🙏💯
I can finally understand transmissions now. That was always the hardest part to learn about in auto class
Glad that worked for you. I'm still getting there on transmissions.
czcams.com/video/_fssEu19q-E/video.html
Awesome video, you got a new sub.
Beautifully designed and explained
Thanks!
Best gear explanation ever.
Glad it was helpful!
Im glad to find this great explanation
I'm glad you did too.
I want to make compound gears ( 2 stages),
3:1 (45:15)
4:1 (60:15)
I want to know how much dieter for each gear?
Perfect explanation, thank you!!!!
@Seth Harteneck ??
@@gustavomuller7190 Seth Hartneck is a troll. This is not his first offensive comment. Please report him.
Very good explanation and representation
Thanks!
This grinds my gears.
-_-
Grind me a pound
unfortunately, I'm very left brained, and I suck at mathematics. However, your explanation is very concise. Thank you for simplifying it as best you could. It's very helpful in what I'm trying to accomplish.
That's my goal and I'm glad I accomplished it for you.
I hope we can discuss springs cause when there is a 10:1 on a spring
If the sprimg moves once and the next gear moves 10 times the gear moving 10 times definitely is not 10x weaker
Thanks! Now I understand better my MTB!
that's where I started but it took a long time to understand
Amazing! Thank you!
Glad you liked it!
We are starting Physics very soon, I am nervous as I don't have a very good memory especially memorizing Formulas, You have a good strategy ?
Superb! Thanks.
czcams.com/video/_fssEu19q-E/video.html
Please where can I get these wooden gears!!!!
I've watched so many videos and this one the one that did it foe me and made me get it
The module is physical seen?
Where do you buy gears?
Well done sir very useful thanks
Most welcome
Great video, Easy to under Gear ratio (IMA)
Thanks. Gears are pretty amazing.
@@LRNFZX
Sir is their way of Calculation the Gear Ratio (IMA) for Geneva Mechanism
Thanks for the video it definitely helped me gain an understanding of them, as far as making sure 2 gears are compatible and will mesh together what do you need to look for?
What kind of gears? Directly meshed? Driven by a a chain?
@@LRNFZX spur gears, directly meshed, driven by an electric motor or hand crank
@@heavyfeather6682 - heavy feather - so you don't want the motor to spin too slowly since it will draw huge currents. And you need to consider your desired output speed. Once you know your motor and have the information on the best motor speed and your desired output speed you can calculate the gear ratio and then look for gears that work for your application.
I am currently looking at my motorcycle and the first gear is too high. I have to slip the clutch a lot and rev the engine way too high so I need a lower gear. The engine input is thousands of RPM and the wheel starts at 0 RPM so I have to put a smaller gear on the input shaft to slow down the output.
The only problem is that when I reach high speeds the engine will then be spinning faster for the same road speed. Compromises for this torque multiplier.
The bicycle is the opposite - the foot motor is slow and the bicycle is a speed multiplier.
this is also useful when you are making cranes. it's going to be alot slower but you can easily lift. also useful for exercising. who knew changing gears can change the whole mechanism
Special Dude - exactly
have you seen this video. with some smart placed gears you can lift insane amout of weight czcams.com/video/pvE83NfbZ8g/video.html
and theres also this video. spinning a wheel insanely fast using a gear and a motor czcams.com/video/zJ3TABb1MRY/video.html
and theres also another video that makes the wheel go even FASTER
Loved your video it helped a lot and was entertaining thanks
Glad it helped.
Idler size don't matter.. that's a very nice thing to learn.. thanks!
and thanks for watching!
Best physics teacher I had 505k views
good video👍
Thanks
Bro, I've watched a bunch of your videos over the years. Good work. Thanks for watching.
czcams.com/video/_fssEu19q-E/video.html
can i bother you for the type and thickness of ply you used?
The gears were purchased but the wood was just a scrap from the basement.
Thank you thank you 🙏
Wow super..
Thank you very much sir.
You're welcome. Hope you enjoyed it.
How would I find the number of teeth for the gears I need from a ratio? I have a ratio of 1:1.25 and I'm trying to find out how many teeth each gear needs to achieve that ratio but I can't figure it out 🙁
That's 1:5/4 so 5:4 or 10:8 or 15:12 or 20:16 etc for number of teeth
@@LRNFZX Thank you so much you have no idea how much you've helped me out there you're a legend!
@@ethaniel_tweedy how much iq do you have? 60?
Can I get more in PDF form?
You’re still my favorite high school teacher Mr. D
Thanks, Max. Good to hear from you. Hope things are going well.
@@LRNFZX Things are! Hope you and the family are healthy and prosperous!
@@MaxBadstibner we are. Same hope for you and yours.
@@MaxBadstibner I'm jealous lol I wish I had such a great teacher
czcams.com/video/_fssEu19q-E/video.html
This will help my project success
Get to work! I wish you success.
i was thinking about gravity-driven generators with enormous gear ratios, stuff like millions of turns to one, wouldn't the force on the final gears' teeth be incredibly huge?
If the output is spinning "millions of times" slower? Yes. Plus the drive system won't be very efficient - too much friction. Generators often spin quickly so you want them to go fast - you might be looking at a speed multiplier where the final gear is smallest and spinning quickly.
i was thinking of this video: czcams.com/video/kYmUJVE6Vo0/video.html
i guess they use VASTLY different gear train designs than traditional ones.
That was pretty interesting. Once it gets loaded on the output with any real force that would be tough to turn with all the friction. And they look like foam rollers. Cool concept.
thank you
Nicely done. Clarified some things for me.
Glad to hear it!
Very good job.
Thank you!
For the worm gear, I counted hat there are more then 20 teeths in the worm wheel. Why does it takes only 20 rotations of the worm gear for one complete rotation of the gear wheel? I thought the number of rotations to give it one complete rotation is the number of teeth.
I had ignored that until you asked so I had to look into it since it definitely doesn't make sense - good observation by the way.
I looked at the thread pitch and it appears that there are three separate threads wrapped on the shaft. it only takes about 3.3 rotations of the input shaft to push my thumb nail from one end to the other even though it counts 10 threads. Thanks for the question - it stumped me for a while.
That really helps thanks!
Thanks for watching
czcams.com/video/_fssEu19q-E/video.html
could you please make more videos about gears, the topic is interesting. What happens where there are multiple gears in serial does only the first and last get affected ? Running multiple gears in parallel?
Excellent idea. One answer - as long as they're all simple gears like these the multiple gears "in serial" will result in the same ratio as just the first and last. I'll take a look at more gears videos.
I love this video
Thanks!
Damn you physics ! good explanation!
excellent video !
Glad you liked it!
I was looking for a video that could teach me how gears work so I can make a fan out of gears and I'm really Intrigeed by physics
Fzx is fabulous, isn’t it?
I did it to understand a Minecraft mod xD
@ami ksa haha! I did it because I was thinking that gears are one of the only anchient inventions that is used as symbols on computers and are still used today IRL.
6:20 dayum yk.
I don't think you mentioned what "IMA" means.
Is that "Inherent Mechanical Advantage"?
Would be simpler to just use MA.
Good video. I'm sharing it.
Bicycles have sprockets. No gears mesh together on my bike. They are joined by chain
And yet somehow bicycles still have "gear ratios" and not "sprocket ratios."
Interesting.. my car jack uses a worm gear, hence my mortal arms can lift a car
Exactly! And here's a bottle jack and its massive IMA - czcams.com/video/KYnV_WmzrzU/video.html
Gears are so cool! Here from anime Dr. Stone
learnt a lot
Happy
THANK YOUUU!!
Yer weeeeeelcome!
I need the gears he used in the vid
They were quite a find and helped me teach gears better
🔥🔥🔥🔥🔥🔥👀
So... Is it theoretically possible to propel a cargo ship at 10 knots with bicycle pedals if you have enough gears? LOL actually came here just to find that out
Of course. With zero friction and a totally different propeller, yes. The propeller is optimized for the engine on the boat and not person power.
Sumerian Sexton functions?
thx my teacher thanks you for helping me understand gears-_-
thanks for watching! Glad it helped.
U are thne best
Ewe two!
I have learned this myself when I was in 7th class from my bicycle.
That's how I started learning too - the bicycle helped a lot.
Saurabh Sunny 👀
I just want to make stuff out of gears, I just learnt how to design them to 3D print
@@Volt64bolt - sounds like fun. To what will you anchor them? What will they drive. Get to it!
THANK YOU
Thanks for watching
nice
This voice reminds me Classic Game Room
U just learned physics me thats why im here
LRNn Fzx iz wut it’s all about
sir i need this software....please help me in my interest....
parece muy interesante...solo que el idioma no entiendo muy bien..
Tengo que traducir, entonces.
"SERVICIOS GENERALES"
Now i can fullfill my dream to Rebuild the Porsche Maus.
Don't judge me, i love tanks.
lmao, a world of tanks/warthunder fan boi
@@robert13605 agreed
Yessir
AMA??
AquasRaf - actual mechanical advantage - check out my other videos on mechanical advantage.
If the small cogwheel is turning faster, the big one is turning slower because the small one takes a while to reach 360°.
By definition, yes. The linear speed of the teeth of each wheel is the same but the rotational speed is different.
whtadoes IMA mean????
IMA is the "Ideal Mechanical Advantage." It is effectively the multiplier for forces in an ideal machine with no friction. An IMA of 3 means you put in 10 lb of force and the machine puts out 30 lb of force. That's what I call a machine that is a "force multiplier." It outputs 3 times the force but 1/3 the speed and displacement.
An IMA of 1/3 means you put in 10 lb of force and the machine outputs 3.3 lb of force. Sounds like a dumb machine but that's because it's a speed-displacement multiplier that outputs three times the speed of your input.
Find a good book. Books are really good for learning. Where are you?
Lrn Fzx im from the philippines and this was our prject abd i succesfully did it
xJustVinCe_ - good work.
thanks man!
Thanks for watching!
czcams.com/video/_fssEu19q-E/video.html
Cool
professional yerep
SCIENCE!!!
I have such a hard time understanding gears, even this which I’m assuming is the most basic explanation you can get still doesn’t click for me
It helps if you have them to play with in person. Take a look at your bicycle gears too.
If it helps, heres a way to think of it:
when the gear teeth mesh together, the teeth of one gear has to go the same distance as the teeth of the other gear, regardless of size differences. So if we have a small gear meshed with a large gear and spin one of them, the small gear would complete rotations more often than the large gear because the small gear has less distance to travel.
for example. if i have a gear with 10 teeth meshed with a gear that has 30 teeth, if i completely rotate then 10 tooth gear, we would have moved through 10 teeth on both gears. the 10 tooth gear goes through 10 of its teeth, which would mean a full rotation. the larger 30 tooth gear would have also gone through 10 teeth, meaning its only completed a 1/3 rotation.
i hope this helps! i know its a pretty rough explanation though...
@@gettingheadeyesd I used to use that explanation but I could just never figure it out conceptually or visually. it was not memorable to me. Now I can look at it and quickly determine the type of multiplier and the IMA. This is more useful to me and my students and that's why I use it.
Thanks for your explanation. If it works for somebody that's great. It doesn't work well for me.
Dakota Galvan no you did a really good job explaining that part I just don’t understand the advantage of using gears or how they make things work faster/better
@@mrwoody1413 It helps a lot if you have them in front of you to play with them. The bicycle helps and the gears inside a printer can work too.