What makes a manual transmission so cool?

[@thelightbrigadef4172]

It would be interesting having a clutch mechanism to separate the power output and isolated from the engine.

[@AndrewAHayes]

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.

[@x2e4]

He could've also made it a 5th gear transmission 😭

[@Buy-n-large]

That would only really be more helpful with a flywheel and running this at a higher speed

[@MmMerrifield]

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.

[@goodnessgracious8819]

@@x2e4 my car says thank you

[@jaredkennedy6576]

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.

[@josuevalar6465]

You seem knowledgeable about this, mind making a video explaining this?

[@Papinak2]

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)

[@MadScientist267]

And reverse doesn't use a collar lol

[@oats9036]

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.

[@lowen74s]

That would be the F1 gearbox?

[@jotham123]

got a link for that ? would love to print one as educational tool

[@lowen74s]

kzbin.info/www/bejne/qV7ZfYFqjqeFp9U There are a few hours worth of content on this channel

[@Gamer_mii]

I would love to see it as well

[@thedudeamongmengs2051]

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

[@subatomicmolecules]

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

[@codingpupper3033]

I love how this video showed how simple a concept this is! So many other videos make it way more complicated

[@FilamentStories]

This is so beautifully explained and demonstrated. What a great video!

[@matejkovacevic2649]

KZbin 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

[@markm0000]

Microsoft is selling your date. All these tech giants are one and the same at this point.

[@michaelmccleery3776]

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!

[@themaskedmusician4846]

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

[@schmid1.079]

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.

[@ABG_3D]

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

[@janniksco]

Always wanted to see something like this! Any good resources on how the synchronizer works?

[@chiefdenis]

I love them for how simple and straightforward they are, you couldn't be more basic and direct if you tried.

[@ReinQuest]

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.

[@spacemanmat]

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.

[@89BMW98]

This short video does a really good job illustrating synchronizers kzbin.info/www/bejne/ZnPUpGClfad1h80

[@spicywolf6718]

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.

[@newtybot]

I’m basically building a go-kart from scratch and this is exactly what I needed to see

[@msthalamus2172]

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!

[@ivancho5854]

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.

[@jacobcreech4382]

Is there a link to the stl? Would love to print this myself

[@tomsko863]

Agreed.

[@TheTrex600ESP]

Agreed!

[@vjekoslavdiklic3575]

you can buy it from here www.enginediy.com/products/3d-printed-manual-transmission-model-physics-experiment-teaching-model-educational-toy

[@Jack-kz4nb]

Soo cool man been here since 90k but love your videos, learning more about 3d printing and physics then I thought.

[@blueslimes9]

Short, simple, amazing. Keep it up!

[@rogerairborne]

Very good info. Concise narrative and good camera work. Bravo!! Well done!

[@kerbacho1]

I love how you simplified a very complex engineering problem into something dummies like me can understand. very good and educational video!

[@gladiatornp]

can I get the stl file ?

[@randomanimatorandgamer9392]

Honestly this is very helpful for learning how a manual transmission works

[@currentcolt3655]

this video's on par with the old black and white demonstration video's from the 30's and 40's, nicely done.

[@sadufc3160]

Those like me who are still confused, check out Spinning Levers - How A Transmission Works (1936). Had to watch that video after this to understand lol

[@tommybobommy9208]

Awesome video! Helps a lot for a visual learner like myself, thank you for making this!!

[@Hdtjdjbszh]

Linear boxes, like in motorcycle, are just as much fun. I love how the two systems both work great.

[@Jim_One-wl4ke]

Good job explaining manual transmission. Thanks for sharing your design ❤

[@MrWhitty2000]

Best explanation I've ever seen.

[@mooghead]

This is such a complicated way of explaining manual trasmission!

[@Janovich]

Thank you, amazing video

[@Kovanoid]

I wish I could bring this into my classroom! What an awesome visual!

[@willcal2738]

ive seen a bunch of these, but this one was the best

[@ddscll]

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!

[@COMB0RICO]

Great video. Thanks from Texas.

[@jacobholman6018]

What a great explanation of this process. Thank you!

[@swealf-nonofficial]

Thank you for demystifying such an ingenious mechanism

[@tonychesser8710]

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.

[@zanegusmerini4258]

smash

[@ChristmasEve777]

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.

[@gaw5024]

The 3rd gear also represents an overdrive ratio. The output shaft turns faster than the input.

[@noOtherFs]

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

[@ab3040]

Teaching me more than my engineering professors

[@Window1322]

Ngl i really want that manual gearbox demonstration

[@Creation-mv2mv]

man, you explained it so good.

[@victorpapaavp]

This dramatically clarified how a transmission works to my chimp brain... thanks for the video!

[@screwsnutsandbolts]

Super videos ! 👍

[@Girtharmstrong69]

The people that come up with with stuff are something else

[@phoflex]

Beautiful work bro

[@bengordillo1709]

Thats a fantastic little model! Is there a link to the stl files so people can make their own?

[@CrypticCrimeShorts]

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.

[@DIYwithBatteries]

Man you are a real 3d printer I mean look at bro... That looks really awesome bro well made 👍

[@Michu131564]

I still don't understeand how that works but it is a cool video

[@Nyx123321]

Excellent model, waiting for stl :)

[@supahfly_uk]

i love the 3d printed model of it that's awesome well done ♥

[@andrewcouto5620]

Really cool. Thank-you!! I've always wanted to know

[@AbbyKebabby]

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"

[@MidnightSt]

Awesome explanation, thanks, but I don't understand how does the red piece work - how is it connected to the shaft?

[@LKRaider]

Same question here. I assume it locks the output gear to the shaft somehow, otherwise the output gear is freely rotating.

[@notsure6834]

@@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.

[@SocialistSean]

I clicked on this video interested in this 3D printed mechanism and just learned how to drive a manual

[@SethCocker05]

Man, that's some skill, shifting without the clutch 🥶

[@Chrisolio1634]

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.

[@joeylawell3590]

I was so intrested thankyou for explaining

[@alexk7977]

Excellent video! I would love to see how an automatic transmission works if you haven't already done that.

[@fshfsh4345]

Is this model online somewhere for download?

[@energyeve2152]

This is neat! Thanks for sharing

[@malijames12]

"We have to shift gears to keep the RPM at a reasonable level." *laughs in rotary*

[@DanielRhoades4122]

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.

[@akrumshaham6659]

When you say “connected” does that mean the specified gears are touching and the rest are not but spinning freely?

[@Relic67]

Great video. Really helps me to understand. Thank you.

[@shevetlevi2821]

Really well done.

[@drewslinkard990]

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

[@mitsos_306]

Nice and clear! Great video!

[@SOLIDSNAKE.]

Feels good driving manual

[@babybeard5222]

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.

[@theovolz3073]

Not long ago, someone broke into my car and was in the process of hot-wiring it when they inexplicably abandoned the attempt. Some have suggested to me that it was because they suddenly realised I had a manual transmission and gave up because they didn't know how to drive manual. Another reason to own a manual drove vehicle!

[@huseyinuguralacatli5064]

Not in Europe

[@awesomecronk7183]

Excellent explanation!

[@itsthem5699]

I would've loved to have this as a toy growing up.

[@maluch792]

i felt like watching a commercial but actually learned something

[@ninjapwnsatlyfe]

Whats blowing my mind is the speeds of the output shaft. When I rebuilt my transmission 1st was the fastest and 4th was the slowest. So it's odd seeing it differently, but this could be the correct way.

[@alexalekos]

nice demonstration now please do the same for automatic transmission

[@jadeaslain6327]

this is a very nice model, and the video is good, but I already understand gesr ratios. what I dont understand, and what I was hoping the model would demonstrate, is how the transition from one ratio to the other is performed by the "red thing", what is it doing to change gears?

[@Garanimal]

I agree, I see a lot of people saying this is a great explanation, I find it very lacking. What is happening which I think he really missed an opportunity to explain is that UNDER the red membranes are the portions of each shaft that are directly connected to their counterparts. I.E the first red membrane sits ontop of a gear that is directly connected to the motor and the second red membrane sits over a gear that is directly connected to the output shaft. By shifting the membranes it connects these gears which drive the shafts and causes the rotation. So when the membranes are in the middle they are in neutral because none of the pieces are connected. When he shifts into first, the red membrane that moves is connecting the output shaft gear (which you cant see because the red membrane covers it) with the spinning gear. If you look closely as the red membrane moves you can see the gear it is sitting ontop of. That is the critical gear which drives the output shaft.

[@TechsScience]

It is Simply amazing

[@CaliburPANDAs]

3:17 is the "synchronizer" the clutch? Please show how the clutch works with the gear shifts :D

[@andrewpetrov7646]

wow always wondered how they work nice vid

[@Hamster07]

Welcome to another episode of What Will I Watch Instead of Sleeping?

[@DavidSenna57]

Getting one , Turbo manual ❤️‍🔥❤️‍🔥

[@jorgengullstrand5988]

Can we have the files so we can try it out ourselves?

[@AntaresSQ01]

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.

[@riversarcadereview385]

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.

[@MileytheJeepV2]

There are a lot of cool things about them... Im in the small group of 15% of Americans that can drive one thats cool.. I can control my rpms and tell my wheels to either spin or get the best possible acceleration out of my vehicle without tirespin... Thats cool... If you blow a manual trans you can buy a $200 rebuild kit and have that thing good as new by the end of the weekend thats cool too

[@MrNateSPF]

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.

[@arva1kes]

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.

[@LKRaider]

Do you have an explanation for the locking / unlocking of the gears? This video really just glosses over it.

[@thomasboilesen]

Great explanation! Thank youi

[@tilen3266]

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) :).

[@icecreamtruckog3667]

There is also a clutch, kinda important.

[@meisawesome12695]

"Please do not put fingers in the gears" Him: *immediately puts fingers in the gears*

[@scrambledmandible]

One thing to note is that transmissions work on the principle of: Given a set input horsepower, the gear ratio is a direct analog to the ratio between torque and speed (ignoring friction losses) A gear ratio of 10:1 means 10x the speed, but 1/10th the torque (to keep the horsepower of the output equal to the horsepower of the input, ignoring friction losses) A CVT theoretically takes advantage of this behavior to the max, allowing the engine to sit at a requested horsepower and taking the perfect gear ratio continuously as conditions change

[@scrambledmandible]

The formula involved is: HP = (lb-ft * rpm) / 5252 Or W = Nm * ω (rad/s) Rearranging gives us: lb-ft = (HP * 5252) / rpm Or Nm = W / ω

[@dIancaster]

Correction: there is a speed reduction when you have a small gear and a large gear, yes, but it only happens when power is going FROM the small gear TO the large gear. In other words, if you had a small gear and a large gear like this, except it was the large gear that was connected to the input shaft (the car engine) and it was the small gear that was connected to the output shaft (the car wheels), then it would actually spin incredibly fast.

[@amirhosseinmahmoudi9717]

Wow this is very very very good

[@rock_oclock]

Could you do a video incorporating the clutch?

[@alexj136]

This is a great video and helped me understand it much better. But I still don't understand how the clutch comes into it - the clutch allows the gears to somehow be 'partially' engaged. Which my current mental model can't deal with, so I'm confused.

[@alexander21812]

Well when you are not clutched the gears spin FAST so when you clutch gears go slow and are easier to fit together, imagine doing a puzzle thats spinning 2000x a minute vs a stationary one.

[@willemm9356]

The clutch is between the motor and the input shaft (but it could just as easily be between the output shaft and the wheels). It is needed because otherwise you'd have to match the input and output speeds before those red rings would be able to interlock with those blue splines. (It's also needed to drive away from a standstill because engines can't go below a minimal rpm). Well, technically you can switch gears without a clutch if you know what you're doing but that will wear out the transmission a lot faster. And the clutch is still needed to go from a standstill anyways.

[@johnsongetdown]

Ahh I wish there was more focus on how the red gear selector does the actual connection between the gear and the output shaft. It's like black magic.