Make the dogs shorter and wider rectangles instead of round pins. Distribute the load across a larger face rather than point loading on a barrel. Distance out from the face increases bending force. Distance out from center increases bending force. The more compact you make it both radially and axially the more robust it will be.

YOU ARE AMAZING!!! I’m a Lifetime Motörhead (78 yrs) and YOU SIR are a TRUE GENIUS. I’d Love to see that set up in a chassis. Again, Its an honor to see your work. Thank you!!

add a small spring or rubber in the engaging faces so you can reduce the impact while allowing a smoother engaging, add steel shafts across the teeth no need to make them out of steel, and add small chamfer tin the opposite side to the face that rest against the dog pin so they don't grind and just fall into the groove

I think a clutch would remedy the problem. I've been at the stage you're at. The dogs always break off. I built a 3 speed transmission and tried a lot of things but it came down to creating clutch action between motor and transmission. I used an electric motor instead of a gas engine. I built a car and installed the transmission. You can see it being demonstrated on my UKposts video. I really enjoyed your video it is really cool. Keep it up!!

Комментарий в поддержку канала и ролика, а также труда мастера.

Look at the transmission/reverse linkage for a traxxas t maxx. It will stop the buzzing and reduce the load on the servo in 1st and 3rd. Or you could also set endpoints on your transmitter if it supports that - looks great BTW :)

You're making a whole new level of fun on this scale. There are so many uses for an engine that small and being able to select three speeds is amazing! That gearbox is spinning over 10,000rpm! Please keep developing this I love seeing your progress

Oh man, with load this is going to sound epic with those shifts! Amazing job as always 👌

Make the dogs out of a softer metal than aluminum. Steel would turn your gears into a consumable when the dogs should be the point of wear. Try brass with smaller square dogs so there’s is more point of contact spreading the force of impact. Like 1mm dogs and 1.25mm slots on the gears themselves. Take a look at motocross bike transmissions and also use gear oil in a sealed case. Grease will only fly off the gears with heat and centrifugal force. Oil will always climb up the gears from the reservoir at the bottom of the case.

Love watching your videos. All my childhood wonders and visions coming to life thru your builds. Literally all the craziest things I thought were impossible YOU made possible. Would there ever be a chance for someone to own one of your creations? Like a actual working car or even a table top model sort of like this?

Holy cow dude! I love the tiny engine content... but BANGING GEARS through a tiny gear box ?! Now that's just awesome!!!! I'd love to see different motors with a similar demonstration.

The attention to detail in the engine is mind blowing, amazing the way its been engineered like that with so much detail, it blew my mind.,,it sounds like a mini motorbike engine the way it spooled up so quickly, fantastic the way it blew through the gears. Wow.

Nice to see gearbox lubricated and covered! Also, I think that dogrings should be made from some flexible metal that can absorb vibration, but not too flexible so it doesn't bent.

11:42 those universal joints between the clutch and the gearbox are moving radially quite a lot

So nice to see this contraption finally come together, good job.

I wouldn't make the dogs out of anything harder than what your gears are made of. The idea is that the dogs wear out before the gears so your failure point is less catastrophic. I'd just find a way to make them shorter and a tad wider to keep the forces closer to the body of the ring and mitigate the amount of torque at the base of the pins whilst simultaneously making them more robust with he size adjustment. You're extremely close though! Very cool!

I would like to see the power output in each gear and then just the engine! Great work as always!

Absolutely incredible little project that you have got going on there 👌🏻

Nice work I agree dog rings out of steal or maybe brass. In full sized applications they are usually a very robust material. I think it would be really neat if you could make a sealed gearbox case that used actual gear oil. You seem very talented at this small scale applications. I understand it’s a big undertaking but man that would be awesome.

Beauty of an engine! The shifts sound good!

Man I bet you had the biggest smile on your face seeing this work. I know I did. Freakin awesome bud, this needs to be in a RC car immediately lol. Will you need that big wheel too, or just let it do its thing? Amazing job and video. It runs so smoothly. I really want to see it in action. Will the torque of the wheels change everything? Or will it pop a wheelie in 1st and 2nd gear like my triple gear Schumacher 21 motor lol. You make me want to get that bad boy back on the road again. I cant wait to see what you have planned for this. You're one smart guy and I thoroughly enjoy your channel.

Steel might work for the dog rings, but you might be chasing the failure elsewhere. I'd lean towards using brass, and redesigning so the teeth are much stronger. Once you have the traction and inertia of a car in the system, the dog rings are going to grenade if they're not at least an order of magnitude stronger. Is it possible to automatically return the throttle servo to idle when shifting? If you have a microcontroller in the loop, it's just a few lines of code to coordinate it.

JohhnyQ90 back at it with another stellar build! Aftermarket for these lil engines is what makes a geat head, a gear head! Keep up the work, it's paying off!!!

Simply amazing. A work of art

That was great just to get as far as you have gone! You are Rocking it! I love your videos just to see how far you have gone. Thank you, 😊

WOW! amazing sound of the gear box !!!

so sick ! that sound of revs vrs shifting is gonna be so cool in a car !

I wish I was this good at something. Keep up the great work!

Damn good machining 🤙🏽

I was thinking of redoing the brass synchros then making a sealed gearbox housing to be able to put transmission oil. Bravo for the quality work!

Love the detail on this one

Nada como um trabalho bem feito. Parabéns pela construção e montagem .

great work! Pros always make things look smooth

Square up the connection pins and use aluminum instead of Teflon. Try a 2:3 ratio for the pins.

This is definitely one of your cooler builds!

I find it amazing all these great machines use the Dewalt router as their router. Every machine at my job uses it. I love it.

Worked , thanks a lot!

Steel gears are a must I'd also say double the belt from engine to clutch with twin pulleys the belt might be the next weak point reving that high, beautiful workmanship as always to

A scaled down synchromesh would be awesome to see, I don’t know how it would perform being so small though.

Cómo siempre una maravilla tu trabajo Felicidades

Hey! I have the same transmitter for my RC stuff. Has been pretty great except sometimes the steering doesn't go completely back to neutral input when you're not touching the wheel. That being said, I do like that it has so many features, like exponential adjustment, virtual end point adjustments, ABS control, launch control, and many, many more. I would give it an 8 out of 10. I do like that you can get super simple or up to 6 channel recievers for it. And that it has if I remember right, 10 model memory. Also, bronze may be a good choice for the sliding shift collars. Not as hard as steel, but tougher than plastic. And, that's generally what legit manual transmission synchronizers are made of.

Love the gearbox and setup it sounds awesome. I think they should be made out of brass but more teeth also be flexsable enough. ❤🇨🇦

Still killing it 🤘🏻

Stoked to see this in a car. :D

Pretty rad bro you never cease to amaze me.👍👍

Love your videos man, it always entertain me. I would like to see you add fourt gear or maybe reverse or maybe both. Also I agree with the idea of making the dogrings out of steel.

This is crazy dude 👍

Works really good. Keep up the good work! you should make a custom top plate for that engine with your name on it.

A couple of things. The dogs should be rectangle. A tip is to also cut a back angle on the dogs teeth and the matching hub/slider, this ensures that when the dogs are engaged they lock together. Also even though they can be shifted at WOT there still needs to be some load taken off the dogs by either slightly lifting the throttle or as we do in race cars is cut ignition. Obviously that’s not an option for you.

thank you for your videos I love them so much also appreciate the fact that you don't narrate or talk I'm sure you're a great person but I really love just not seeing people's faces when they're talking about the product and you make such an amazing product

Work of an Arts

Man I love your videos so much, they're so satisfying to watch. Keep up the content!

hardened steel dogs should do it 😅 Great work as always man

I still want to see someone build an RC car that is controlled by a racing wheel. Imagine driving an rc car with googles, steering wheel and a 6 speed manual gearbox. This is very cool though. I really enjoy watching you make things. Keep it up!

Awesome mate well done.

WTF!! seriously, amazing....speechless!

You've got awesome skills.

It seems that the strength of the dogrings is more of an issue than lubrication, but once everything is made of metal, I think filling the transmission roughly halfway with gear oil (and maybe the grease too) would be a good idea. And set endpoints on the shifter servo so it stops buzzing as others have said. Only make it throw the linkage far enough to get into gear.

So beatiful to watch you, making things. 😉👍

I run brass dogs on my tamiya semi and they stick under load I think steel would be great but with a nylon bushing in the center to slide Awesome video as always

Amazing job man

works amazing, good job ✌️👌💪👍

Also, did you try downshifting? Lol this is one of the coolest things I've ever seen, definitely make them out of metal, have extra gears on standby hahaha 😆. Great job bud, it's so cool to see something you thought up, built and ran, work like it should. 👏 👏 👏 👏 Just awesome

This guy will have his own tiny army and take over the world with tiny cars and tanks

นี้และสิ่งที่น่าดูเพลิงเลยคับ สุดยอด

to me such a machine is amazing

wonderful design. Try to make the external structure of the transmission in colorless material and in such a way that it is well sealed, and then instead of using bearing grease, use transmission oil, because I believe that with the grease in a few minutes you may lack lubrication and start creating stress on the parts. Congratulations on the project and dedication.

Oh my imagine a miniture drift car with this engine!!

Whoa!! The needle crank bearings are awesome!!!! I do see some major issues developing over time with that setup but hey, not like this thing is powering a semi truck. Its adding moving parts to an already chaotic atmosphere, internals of an internal combustion engine. Over time, no matter what you do, metal particles WILL make their way into those bearings. The second one of those needles gets scored enough to render it just the slightest bit smaller than the others, it will create insane vibrations and throw off the harmonics of the whole engine in turn causing catastrophic failure. Like i said, not an issue with this little guy but, a production engine thats gonna do 100,000 miles or more definitely an issue. Not to mention one could get something stuck between itself and the race causing it to stop rotating. Hell they could even bind up with one another because theres no seperation girdle.

Use brass for the dog rings! That's what they use in automotive applications, but they also use an oil that causes the brass to develop a layer of oxidation that hardens/helps lubricate, so idk if using grease changes that enough to matter.

Thats awesome! Steel is a good upgrade but not gonna stop the rough entry. Maybe shape the teeth on the ends to have a nice centering point so it can engage quicker. My favourite idea would be to make a planet gear setup with brake bands that can be tensioned around the planet gear drums to lock each gear but all on the same output shaft and lock each ring gear individually. If the gears didnt need to be lubricated id say use normal RC brakes modified to fit a ring gear. 🤔

You can set end points on the TX so your servo isn't buring up. You can use the dual rate I think.

Vous êtes vraiment très très fort !!

Looks like a lot of fun.

The stuff you do is cool keep up the great work

Great video as always. Got to show an updated version of your shop. Its been awhile. 🙃🙃🙃

The load was too small for the engine, it revs too quickly to notice that it changed gear. I wonder how it sounds when a bigger load is attached to it. Maybe it'll sound like a life sized one. Anyways, your contents brought smiles to millions of people. Keep up the good work man.

It seems to me that the teeth on the dog rings are usually trapezoidal, so that they find alignment, but then once everything is lined up, you can have more and thicker teeth engage. I think that would give you less breakage.

Omfg so satisfying!! You cool bro 🔥🔥

That's awesome!

Thats really cool.

Steel or brass dogs are a must, and with a lot more teeth (6-8 minimum) to spread the load among them. Don't forget to chamfer the tops to ease engagement and reduce any gouging of the female parts. as they'll just act like a high-speed milling-cutter! I'd be interested to see how hot the internals get after a long run under load, that'll likely show you the next point of faliure too! I love the case, it'll help keep the grease in, but if you find that localised heat build-up is an issue, you'll need to switch to using oil.

Mindblown

Synchrons! I want to see it with bronze synchrons! Amazing work by the way! Keep up!

And awesome build.

Amazing. Once again an awsome video! Thanks. But if you want a good gear change experience maybe look into synchro-mesh gearing. Might be a little hard to achieve, but should be do- able on small scale.

Krasser experte

Yes steel will have a much slippery change during gearing and longevity. Aluminum will just get wear out jamming till destroyed. Nice project!. 👍

My first instinct for this is to get a little arduino nano and fit it between the radio reciever and the servos so that when you tell it to switch up or down a gear it can automatically lift up off the throttle. in regular car engines you would have a clutch to disengage the power but lifting off the power was the old way of doing it before clutches were a thing. the only other way of doing it is to have sensors on the gear box to time when they angague like on a formula one car but that's even more complicated and still an electronic control system.

Incredible

In many automotive standard transmissions, the Synchronizers are made out of Brass or bronze. That is what I would suggest making your next set out of. Also, I think it is fine that you made the load mounts with bushings but, why didn’t you just use bearings? Anyway, still enjoyed the watching the project. Thanks for the vid

11:51 - might want address the shaft balance issues there before either the gearbox bearings explode, or the ending bearings, or the U joint!

Alucinante!

Nice videos, keep doing it.

انت مبدع

If the gears are aluminum, steel wouldn't be the best material for the dog rings. It will probably tear up the gears. I would do a phosphor bronze or even copper. Alternatively, you could attempt to make a single slip ring using an abrasive against a set of brass mating surfaces, as you do still have input torque from flywheel momentum creating a jolt on the dogs.

Very nice work.

Yes, definitely make the gears out of steel. I could watch machining videos all day.

Nice to meet you

Geait job! Have you thought of making the dogs out of Aluminium and the gears out of Plastic? As seen in the test, the teeth as realy the weakpoint an i think swaping the materials would work fine. Also a radii in thr corners would help a lot!