How a Manual Transmission Works 

Thank you for telling me that. It is exactly what I had hoped to accomplish for someone.

@@johnsanborn2950 I have some questions about your transmission?

Thank you for taking the time to let me know that.

I agree with you

This is by far, best animation.

Thank you. I'm sincerely pleased that it helped you.

@@johnsanborn2950 is it possible to buy that model?

@@burnzy3210 The STL files for the model are available for free... www.thingiverse.com/thing:3776077

Thank you

Wow. That's very kind. Thank you. I'm happy that you found it worth your time. :)

@@johnsanborn2950 I think the thing that made this video better than most is how you removed many of the components to show how only the items that you were talking about were shown. Then after a clear insight into how the countershaft and the sleeves work you put them all together. Well done!

@@rudyyarbrough5122 Thanks again. That is how I prefer to be taught something myself. Start at the root and build it up for me.

Thank you for letting me know that!

Thank you for that very kind comment. I'm proud that I was able to advance your understanding. I do hope to make one for automatics once MY own understanding of them is clarified to the point that I'd feel qualified to do so. :)

Thank you.

Thank you :)

Thank you. Yes - I botched the volume balance in more than one place. I have learned from that and will do the audio mix with more care next time. Frankly, I hurried the release. It had been months in the making - a daily grind of tweaks and retweaks ... when I finally glimpsed the light at the end of the tunnel, I ran to it. :) In post mortem I provided a customized Closed Caption track ... too little, too late. (For the record - one of the thumbs ups on your comment is from me)

Eliminate it completely and this will be a decent illustration. Only thing missing is the synchros but I guess that's really best left for the next installment lol

Thank you for taking the time to tell me that. I appreciate it. :)

I'm proud that I was able to help. Thank you.

Thank you for taking the time to comment.

Thank you, so much.

Thank you for taking the time to share that.

Thank you

Thank you for taking the time to comment. :)

It truly is elegant engineering. Thank you for the kind words for the animation. Glad you found it worthwhile. :)

Thank you for taking the time to comment. I was two when you took that first transmission apart. You didn't mention that it was ever put back together ;) My CR-10 and I have reached various agreements over time (I don't push; it doesn't shove). It's been extraordinarily good to me for the past year - a real workhorse, but yes - tight tolerances were the largest challenge here. And that shifter cradle...I'm still waking up in the middle of the night...

@@johnsanborn2950 No help as a kid without a father so I had to get it done on my own. Unheated single car garage in an Iowa winter. Just replaced the hot end on my CR-10 as unattended I ended up with a ball of melted PLA What did you have as a guide to do this project or just all on your own? Can you adapt a small motor to spin the input shaft? Just a great project!

@@gvet47 I have found the hot-end silicone sock to be a worthy, inexpensive, and painless modification. Highly recommend them now for just that eventuality. This was done completely from scratch with plenty of missteps along the way. I actually began modeling a much simpler, older transmission (viewed in a 1936 Chevrolet training film titled "Spinning Levers" - look it up - a beautiful little production) - but decided, after weeks of work, to scrap that and, instead model this much more complex and (to me) interesting one. I had a lot of prior experience with video production - but almost none with the animation of a 3D model - so that took a bit of effort. One could motorize it, to be sure. I was tempted to do that with an earlier model that I made of an open differential (www.thingiverse.com/thing:3592644) but decided in both cases that it would hurt more than it would help when using the model(s) as hands-on instructional tools. And just so I can sleep in peace again: My arithmetic was bad. I was 5 when you tore down that gear box. :)

Thank you for commenting. I'm glad that you found it helpful.

Thank you for commenting. I'm very glad you found it useful. :)

Thank you for the comment. I'm so glad it helped!

Thank you. I'm glad that you found it useful and that you took the time to comment.

Thank you. I'm glad that you enjoyed it. :)

Thank you. I agree almost word for word with Tomas Beblar's response. I am considering modeling a clutch as my next project.

@@tomasbeblar5639 Words right outta my brain. :)

Thank you for commenting.

Thank you for that comment. I'm delighted that you appreciate the result. :)

Thank you. That makes me so glad that I did it. And thanks for taking the time to let me know.

Thank you. I am strongly considering the clutch as my next project. I'm experimenting with modeling the clutch fingers (as 3D printable and functional). If I can make that work, then it's game on.

Thank you :)

Thank you for those kind words :)

wow. Thank you.

wow. That's so great to hear. Thank you for taking the time to share that. I don't have any of the notes/calculations that I used for the project any more, but I can tell you it involved several hundred hours of work in all. I learned quite a lot about designing gears, and a lot about printing them.

Thank you so much for the comment. My only goal was to help folks who might otherwise be overwhelmed...It is nice to hear that the effort was worthwhile :)

You're welcome. I'm happy that you have found it useful. :)

Thank you for the kind words. I'm glad that you found it helpful. :)

Thank you for the comment.!

Correction: "...understand HOW* this mechanism works!"

@@customfantasyhotwheels my english is pretty bad. thank you for your time!

Thank you for saying so. I was hopeful that some folks might find it helpful.

Thank you. Helpful was exactly my goal.

Thank you. That means quite a lot to me: That you found it worth watching, and that you took the time to say so.

@@johnsanborn2950 no Problem 👍👍

Thank you. :)

Thank you.

Thank you. That's great to hear.

Thank you

Thank you for saying so. I'm proud that you appreciated the video. :)

Thank you!

Thank you for the kind words. I hope that those who might benefit from it can find it. I struggled mightily to find a balance with the music. Start-to-finish: the research, model, video, and illustrated assembly.instructions took a little over 1,000 hours. I feel like I have a newborn. :)

Thank you :)

I'm delighted that you found it worthwhile, and thank you for taking the time to comment.

Thank you for the comments.

Thank you. Yes, Fusion360 produced the basic animations of the model. The video actually incorporates 6 separate animations which were blended together (in various ways) using PowerDirector 365 - the program that also provided the graphics (titles, labels, arrows, etc...) and the soundtrack. If curious, here is a screenshot of the video's structure as seen from the POV of PowerDirector. You will see 12 layered tracks of video, 1 audio track, 1 fx track, and that top unnumbered track which is the Closed Captioning (kinda). Not visible in that screencap is the voiceover track as it doesn't fit on screen there. imgur.com/a/jqqPf5I

oops. Make that "incorporates 10 separate animations..." :)

Thank you for the kind comment. I'm delighted that you found it useful. :)

I believe it is a lot stronger for the high torque to handle!

@@thomasgagel But the reverse-gear ratio is typically close to that for first forward gear.

@@lawrencedoliveiro9104 I always thought that reverse was a direct drive from the engine, with the highest torque of any gear. I’m not sure though so don’t quote me! 😅

@@thomasgagel Direct drive would be the lowest torque. Remember that the gears in the gearbox are invariably reduction gears.

@@lawrencedoliveiro9104 isn’t reverse the exact same ratio usually?

I am delighted that you found the video so helpful. Thank you for sharing that. Included in the posting of the model is a document named "Assembly.pdf" which is an illustrated, detailed, step-by-step guide to the model's assembly. It would be impossible to create a single 3D-printable file of the completed model as it comprises more than 70 individual plastic parts and a dozen bits of non-printed metal hardware (small screws, nuts, springs,....)

Credits for the music appear at the end of the video. :)

@@johnsanborn2950 Ha, thank you. I was too busy commenting and didn't notice,

That delights me to hear. Thank you for commenting. :)

I hadn't pondered that, but I would say it could spin rather quickly, but with no synchros...shifting would be... uhm... interesting. :)

@@johnsanborn2950 Mine has no synchros either. Well theoretically the pieces of plastic are there, but they get negligible friction to the gears, so they do nothing. As I don't have a shifter mechanism, I can just tilt the whole thing maybe 20-30 degrees and it will shift under full power. Apparently I only have 1 pic at hand, here: imgur.com/a/iIBKa4K

Thank you :) :)

Thank you. The output of the engine is coupled to the input of the transmission by a clutch. When braking to a stop, the engine is disengaged from the transmission using this clutch. Although not discussed in the video (as it is not part of the transmission proper) the clutch is represented by the circular plate attached to the end of the transmission's input shaft.

Thank you. The final prints took roughly 155 hours in total (using a single printer.) I would think that's something on the order of 1.5 kg give or take. (And many more times that in the design process)

Thank you for taking the time to let me know that. It's great to know that it has been helpful.

Thank you :)

Shifting down to first is pointless

This involves a mechanism called a Synchronizer (not covered in the video). There are a handful of decent RU-vid videos out there on the subject. Here is one that I favor... ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-nM4CuWlnJY0.html

Only select first when you’ve stopped. As long as the car’s moving, go no lower than 2nd, and feather the clutch a little if you need to, but only for an instant.

I used Fusion 360 to design the model and to create the animations (8 in total) that I then combined together using PowerDirector .

​@@johnsanborn2950 Thanks for answering, you have a lot of knowledge about that program and I want to learn it because the people in general speaks well about it. Now I'm gonna try to do your transmission model. Greetings from Spain.

Thank you. Very nice of you to say.

Gear locking pins and spring/C clamp might be worn.

The ratios vary from model to model of gearboxes from different manufacturers, and they also vary within models from the same gearbox manufacturer depending on what the car manufacturer wants. There isn’t a standard set, although some ratios are very common. Very few car makers make their own gearboxes - they buy them from suppliers.

It would still function w/o that hardware. You would only lose the detents that provide positive stops for the selector sleeves' key positions.

john sanborn ok thank you for the help. Looking forward to making it

I used "Helical Gear Generator" by Ross Korsky (available in Autodesk's App Store). I did not control individual gear diameters. I controlled each gear set's "Center Distance" (the sum of their two radii) - keeping this a constant. This is done by calculating an appropriate module for each of the four gear sets.

@@johnsanborn2950 thanks for the help you are awesome

Dunno about that, but thank you for the kind words.

Thank you.

Thank you for that question. I'm not sure how viable such a project might be. It would require several hundred hours to produce, and would have a relatively small target audience - those using both Fusion 360 and PowerDirector. But you have me pondering it....

lol. Well said! Thank you for commenting.

Terima kasih. Bagikan video ini dengan siapa pun yang menurut Anda akan menikmatinya.

@@johnsanborn2950 terima kasih pak

Thank you for commenting.

4 speed + reverse

Thank you :)

Thank you :)