What makes a manual transmission so cool?
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- เผยแพร่เมื่อ 2 ส.ค. 2022
- Manual transmissions are fascinating. They are a simple solution to a complex problem packed into an ingenious mechanical package. In this video we will learn the theory behind how they work.
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It would be interesting having a clutch mechanism to separate the power output and isolated from the engine.
I was about to say the exact same thing, I got my friends son a build your own model of a 4 stroke engine a few years ago and helped him build it, I had a fair idea of how everything mesh's together but seeing it up close relly brings it home.
He could've also made it a 5th gear transmission 😭
That would only really be more helpful with a flywheel and running this at a higher speed
He can simply turn off the power being that this is run by an electric motor, the clutch simply disconnects the motor from the transmission.
@@x2e4 my car says thank you
That's pretty cool. This would be representative of a very compact transmission like might be found in a motorcycle or early FWD car. A typical rear drive manual transmission has the input and output shafts on the same axis, with the power being sent down to a countershaft to select the ratios. The lowest reduction is usually at the rear of the case, as it puts a huge load on the shafts trying to push apart rather than rotate. You'll have first, second, third, and sometimes fourth as reduction gears, with the next gear being a direct connection between the input and output shafts. After this, you have overdrive gears, where the output spins faster than the input. This is usually in a second section of the transmission, behind an intermediate bearing plate as now pushing forces are getting higher again.
You seem knowledgeable about this, mind making a video explaining this?
That actually sound like a typical FWD gearbox, except for the 3 shaft design) - 4th gear is closest to the differential, moving away towards 1st, then behind a bearing plate is 5th and 6th (sometimes with additional bearing plate at the end of the shafts)
And reverse doesn't use a collar lol
My favorite printed gearbox is the sequential 7 speed w reverse. Don't remember the designer but he did an excellent job. Its a good design as you can scale it with realitive ease depending on your application. When printed with nylon it is strong enough to stick into an rc car. All I have tried so far is an electric motor however I think it can handle nitro as long as it isnt too small.
That would be the F1 gearbox?
got a link for that ? would love to print one as educational tool
th-cam.com/video/s-vLN4YBRqs/w-d-xo.html
There are a few hours worth of content on this channel
I would love to see it as well
Even in weaker plastics, gearboxes like these can be surprisingly durable. Someone tested printed worm drive gears with and without grease and as long as they had grease, they could 8,000 rpm for a while with no visible wear. The actual numbers might have been higher but I haven't seen it in a while
Amazing! If I had to suggest an improvement, the color coding could be improved. Everything perpetually connected to the driveshaft should stay blue, but everything connected to the output shaft should be red, so we can see better what's connected to what. The rings could be their own color like purple or something
I love how this video showed how simple a concept this is! So many other videos make it way more complicated
TH-cam is recommending this to me when i started working on my own 3D model of a manual transmision in cad which is scary and useful and btw you’re videos are awsome its a shame you dont get the support that you deserve
Microsoft is selling your date. All these tech giants are one and the same at this point.
This is so beautifully explained and demonstrated. What a great video!
One of the best basic explanations I've ever seen. Simple and direct with great visuals. I agree with some of the other comments about the clutch mechanism but I understand that would be best done in a follow up video. Keep up the good work!
Genuinely one of the best demonstrations of how a manual transmission works I have seen yet. Better than those fancy 3D animations for sure.
Only thing missing is a clutch.
Is there a link to the stl? Would love to print this myself
Agreed.
Agreed!
you can buy it from here www.enginediy.com/products/3d-printed-manual-transmission-model-physics-experiment-teaching-model-educational-toy
Thank you so much for the dedication to your videos and the quality of your videos. I enjoy them every time and i think you have some of the best quality descriptions in this sort of content area
That explains this really well. Would be interesting if you expanded and added a clutch disconnect too. Just to see the extra level that adds.
The clutch is not needed to shift but it’s cool too see.
Something I don’t know now is how the synchronizer works.
The red parts that slide are called a sleeves (there are 2) and the blue parts they engage with are called dog teeth (each gear has its own set of dog teeth). A synchro ring is attached to the front of the dog teeth, it can spin but if pushed towards the dog teeth it will grip. So when the sleeve is pushed, it initially hits the synchro ring and engages with it, at the same time the synchro ring grips and in turn spins the output shaft faster or slower to match the required speed. Once the speeds are matched (synchronised) then the sleeve can slide fully onto the dog teeth.
This short video does a really good job illustrating synchronizers th-cam.com/video/0Bqs-oHBBQk/w-d-xo.html
At that point it would be easier to do a cutaway on a motorcycle transmission. Clutch basket is on the input shaft a single bearing width away from the box
Constant mesh, straight cut dog box.
Granted it has a shift drum to move the forks but it's all right there.
Such a great video with a fantastic explanation, well done.
Do you have this transmission available for download ?
I think that it will be a great project for kids to learn how a transmission works in conjunction with your video and explanation.
Keep up the great work
I love them for how simple and straightforward they are, you couldn't be more basic and direct if you tried.
Very good info. Concise narrative and good camera work. Bravo!! Well done!
Short, simple, amazing. Keep it up!
Soo cool man been here since 90k but love your videos, learning more about 3d printing and physics then I thought.
Awesome video! Helps a lot for a visual learner like myself, thank you for making this!!
What a great explanation of this process. Thank you!
Thank you for demystifying such an ingenious mechanism
I wish I could bring this into my classroom! What an awesome visual!
I’m basically building a go-kart from scratch and this is exactly what I needed to see
Linear boxes, like in motorcycle, are just as much fun. I love how the two systems both work great.
Honestly this is very helpful for learning how a manual transmission works
ive seen a bunch of these, but this one was the best
Great video. Thanks from Texas.
man, you explained it so good.
Beautiful work bro
Great video. Really helps me to understand. Thank you.
this video's on par with the old black and white demonstration video's from the 30's and 40's, nicely done.
This is neat! Thanks for sharing
Best explanation I've ever seen.
I was so intrested thankyou for explaining
Really cool. Thank-you!! I've always wanted to know
Really well done.
Great video and explanation
This is such a complicated way of explaining manual trasmission!
Excellent model, waiting for stl :)
Thank you, amazing video
Nice and clear!
Great video!
wow always wondered how they work nice vid
i love the 3d printed model of it that's awesome well done ♥
This is friggen godly keep it up!
Excellent explanation!
Curious how many people watching this have ever actually driven a car with a *true* manual transmission, one with no computer involvement whatsoever. I learned on a '74 Toyota Corolla, with manual *everything*. Its clutch was incredibly unforgiving. If you were off in your timing by just a little tiny bit, the whole jalopy would start to seize, jerking the car forward and backward violently until the engine died. I have to say that learning on that beast made every other car, stick or not, I drove after that an utterly trivial undertaking!
Almost all cars (and every single van/truck) outside of North America have manual transmission. EVs are gearless. I think that the reason that the American drivers prefer automatic transmissions is ultimately due to cheaper energy costs in the US.
All the best.
Man you are a real 3d printer I mean look at bro... That looks really awesome bro well made 👍
Hello,
I love the video but it would have been even better if you explained how the red circle transmits the mechanics power from the driveline to the ouptut.
Have a great day :)
If you closely at the output gear, it is connected to the middle gear, I suppose that by moving the red bit, he is making it so that the gears get linked, by making the red bit touch two gears.
Great explanation! Thank youi
Amazing video and super simple to follow allong! Is there a way to get the files for it? Id love to print one out myself
I love how you simplified a very complex engineering problem into something dummies like me can understand. very good and educational video!
A common trend in transmissions, these days, is a double-clutch multi-shaft transmission (sometimes known as a DSG). Would love to see a 3D-printed version of one of these.
smash
Thank you the video.
This direct connection between the wheels (via the output shaft) and the engine is why you can start a car with a manual transmission by pushing it (or as it starts to roll down a hill) and then popping the clutch (esp. in 1st or Rev) and then quickly pushing the clutch back in before it stalls again. I used to do this just for the heck of it in my driveway because it wasn't completely flat - I'd pop the clutch in reverse... never wore out my clutch either.
Excellent video! I would love to see how an automatic transmission works if you haven't already done that.
Awesome. Thanks!
Wow this is very very very good
Thats a fantastic little model! Is there a link to the stl files so people can make their own?
I think what he has in the video is really cool, if this gets a response that would be amazing, I’d love to build that.
Thanks for such a cool demonstration. It has always been a huge curiosity of mine, how gears are being shifted in a moving car...
The 3rd gear also represents an overdrive ratio. The output shaft turns faster than the input.
Is this model online somewhere for download?
I've been to a lot of these "How manual gearbox works" videos, and I understand how they work, but what I never understood is how the parts are assembled and how that relates to how it works
Teaching me more than my engineering professors
Wow thank you so much! So all the gears are always meshed together! The shift only connects one of the pairs to the output.
It took this video for me to realize that the un connected gears were still spinning, just minding their own business at their own speed around the shaft. It’s an amazing design.
I’d love to have that toy at home. Is it selling anywhere?
Super interesting 👍
Super videos ! 👍
wow perfect rev match.
"We have to shift gears to keep the RPM at a reasonable level."
*laughs in rotary*
Man, that's some skill, shifting without the clutch 🥶
It is Simply amazing
The people that come up with with stuff are something else
That's a cool model
So Cool. I Iove this.
Ngl i really want that manual gearbox demonstration
Thank you for the interesting video, where can I find this model?
This is nice Work there!
I Hope You Can Upload the 3d files so I can recreate your transmission!
This dramatically clarified how a transmission works to my chimp brain... thanks for the video!
nice demonstration
now please do the same for automatic transmission
Thats a cool little model. You should release the stl files so we can print one. I'd love to have this on my desk.
This is awesome
Awesome explanation, thanks, but I don't understand how does the red piece work - how is it connected to the shaft?
Same question here. I assume it locks the output gear to the shaft somehow, otherwise the output gear is freely rotating.
@@LKRaider It's the red piece that's connecting the gears. Initially, the red piece is connected to the shaft, then it touches the moving gear and the shaft gear.
Feels good driving manual
I would love too see you push it to the limits. I think it would be pretty cool to see how much load and RPM such 3D printed gearbox can handle. (and yes I will subscribe with notifications too see if you actually do it) :).
I would've loved to have this as a toy growing up.
great video but i was laughing when i read "do not put fingers in gears" and then you said "look what happens when i put my fingers in the gears"
That IS how a manual transmission works. Some will just have more gears but the concept is the same, more gears and red connectors will mean a bigger range of control, like 5 or 7 speed. Add a clutch and you can switch gears faster. The clutch also allows you to have the engine running while the car is not moving.
looks good although the geartrain is usually in a straight line and not side by side and hi gear is usually 1:1 especially on a 3-speed.
Very cool.
i felt like watching a commercial but actually learned something
Great job you are genius 👍🌷🌹🌹💐💐
The text on the side of the model: "Do not put your fingers in the gears"
3D Printer Academy: *Puts fingers in the gears*
🤣
btw great content, thanks!
I always try to teach new manual drivers by essentially describing a very simple version of this concept, so they can have better mechanical sympathy when learning to shift properly.
Super Cool!
That’s so cool! What was the print time?
I 3d printed a 5 speed constant mesh gearbox, all gears spin all the time but dog gears determine which set of gears power is directed down. All plastic with only a few paper clips to act as snaprings.
very cool
whats the gear generator program you are using? I need it for some future projects
As yet i have not seen a good explanation of how it works. it's especially difficult to people to understand how locking of the gears works and thus "connect output shaft to this gear" does not help them to understand. Also mostly it is not explained, that there are multi levels on running the gears on the rod (one that drive loosely and one that is attached to rod). This is the most frequent part I have to explain using some other means. It's easy to understand that smaller gear vs bigger gear gives speed increase and driving gear one way makes the other go the other way and thus if you need to change direction you need to add another since this is replicatable easily with cups n glasses etc.
Do you have an explanation for the locking / unlocking of the gears? This video really just glosses over it.
The drive shaft connected to a small gear, the small gear connected to another small gear, another small gear connected to a large gear, the large gear connected to the output shaft. Doin the transmission dance.
I clicked on this video interested in this 3D printed mechanism and just learned how to drive a manual
Are the SDL available anywhere? Thank you