What makes a manual transmission so cool?

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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[@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

[@mAtT47739]

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!

[@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

[@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!

[@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.

[@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.

[@chiefdenis]

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

[@blueslimes7731]

Short, simple, amazing. Keep it up!

[@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

[@Jack-kz4nb]

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

[@tommybobommy9208]

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

[@rogerairborne]

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

[@jacobholman6018]

What a great explanation of this process. Thank you!

[@swealf-nonofficial]

Thank you for demystifying such an ingenious mechanism

[@Kovanoid]

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

[@randomanimatorandgamer9392]

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

[@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.

[@kerbacho1]

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

[@Relic67]

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

[@Janovich]

Thank you, amazing video

[@Creation-mv2mv]

man, you explained it so good.

[@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

[@phoflex]

Beautiful work bro

[@willcal2738]

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

[@COMB0RICO]

Great video. Thanks from Texas.

[@AceSkates]

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

[@Orthaluminox]

This is friggen godly keep it up!

[@currentcolt3655]

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

[@shevetlevi2821]

Really well done.

[@mitsos306ify]

Nice and clear! Great video!

[@joeylawell3590]

I was so intrested thankyou for explaining

[@andrewcouto5620]

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

[@energyeve2152]

This is neat! Thanks for sharing

[@MrWhitty2000]

Best explanation I've ever seen.

[@ThisIsMyYouTubeHandle69]

Great video and explanation

[@newtybot]

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

[@awesomecronk7183]

Excellent explanation!

[@thomasboilesen]

Great explanation! Thank youi

[@andrewpetrov7646]

wow always wondered how they work nice vid

[@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

[@supahfly_uk]

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

[@Nyx123321]

Excellent model, waiting for stl :)

[@mooghead]

This is such a complicated way of explaining manual trasmission!

[@laminarflow6072]

Thank you the video.

[@DIYwithBatteries]

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

[@gmodesike]

Awesome. Thanks!

[@hadri1]

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?

[@screwsnutsandbolts]

Super videos ! 👍

[@TechsScience]

It is Simply amazing

[@amirhosseinmahmoudi9717]

Wow this is very very very good

[@RandoniumTJ]

Thanks for such a cool demonstration. It has always been a huge curiosity of mine, how gears are being shifted in a moving car...

[@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.

[@alexk7977]

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

[@fredyy]

Thank you for the interesting video, where can I find this model?

[@ratthaks]

So Cool. I Iove this.

[@JoshuaRilliet]

Super interesting 👍

[@jasonrhoades4122]

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.

[@gaw5024]

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

[@easy_3d]

This is awesome

[@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

[@rock_oclock]

Could you do a video incorporating the clutch?

[@justusgehler392]

This is nice Work there! I Hope You Can Upload the 3d files so I can recreate your transmission!

[@ab3040]

Teaching me more than my engineering professors

[@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.

[@norristiii]

Very cool.

[@bengordillo1709]

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

[@connorwueller6109]

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.

[@juanmacias5922]

Super Cool!

[@SethCocker05]

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

[@JH_HAY]

That’s so cool! What was the print time?

[@benjaminshields9421]

Do you have a link to the model for this? Its beautifully designed!

[@pontiacattack249]

That's a cool model

[@stargazer59]

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 :)

[@notsure6834]

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.

[@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

[@thisishere3071]

very cool

[@superman-sl7qb]

Can you also make video of 3d printing this mechanism?

[@fshfsh4345]

Is this model online somewhere for download?

[@ironwolf3699]

wow perfect rev match.

[@CorneliuTicu]

Are the SDL available anywhere? Thank you

[@Girtharmstrong69]

The people that come up with with stuff are something else

[@malijames12]

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

[@CaliburPANDAs]

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

[@alexalekos]

nice demonstration now please do the same for automatic transmission

[@melissaostrowski2761]

This is great! Do you have any STL files for this?

[@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.

[@brendonfleetwood6069]

Very well explained. Please could you share the name of the software that you used in the video

[@itsthem5699]

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

[@ShakirKhan-nn2og]

Great job you are genius 👍🌷🌹🌹💐💐

[@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) :).

[@williamjohnson745]

Are you going to be adding this model to your website? Would love to buy the STL so we can make.

[@victorpapaavp]

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

[@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.

[@Window1322]

Ngl i really want that manual gearbox demonstration

[@jcr723]

Nice video! It seems the details of the clutch is need to really understand. Can you show us what's under the hood on how the clutch works?

[@DFX2KX]

The clutch might be a tricky bit to print. basically it's a disc (or series of them) that has a high friction material on one side, and a metal disc on the other. there is a spring (or set of them as in motorbikes generally) that pushes the two or more sets of discs together, so that the friction locks the engine to the gearbox. you can reduce or eliminate the friction by pushing down a pedal on a car, or the left handlebar lever on a motorbike, this pulls on a fork that forces the two elements to seperate. reducing the friction is how you start moving so the car doesn't stall, you completely decouple to switch gears.

[@robertdefoe2396]

I printed a sequential gear box although seeing how you built your gear meshes, I feel it may need some upgrades.

[@kotekdavid8266]

Nice. Where can I get model data? I would like to build it.

[@a_lucario4736]

whats the gear generator program you are using? I need it for some future projects