Young man, your vision, skill, patience, and editing are amazing, I salute you. Best wishes from an old man in Ireland.

No idea what you are talking about but great work. Very inspiring

Your rotors are attached with one bolt through mild steel hollow axle tubes - it will work for awhile, but as you brake and lock each track, with inertia the holes in the tubes will get oblong and wear out pretty quickly. Rotori su pričvršćeni jednim vijkom kroz blage čelične cijevi šuplje osovine - djelovat će neko vrijeme, ali dok kočite i zaključavate svaki trag, inercijom će se rupe u cijevima izdužiti i prilično brzo istrošiti.

Уважаю людей, которые "любят трогать дело руками". Ты молодец! Удачи тебе по жизни! Пусть твои дети тоже будут любить ТРУД!

18:00 Living life on the edge mate. The cutting disk will take your fingers off like butter.

Bravo. Please ignore all the "youtube engineers" that are saying what you are doing is wrong or what you should have done instead. It's really great to see what you are attempting and I understand you are just making it up as you go, you are young and you are learning. Thank you for the videos, I know in the end this will work and I will be thr first to congratulate you sir.

Where is the clutch? it's always powered this way.

Clutch or torque converter. Needs a 3rd center support bearing at the end of the shaft due to play when you just squeezed the belt. Love your build this far. Please get subtitles for your foreign audience.

Интересно,полуоси по сварке лопнут или по отверстию для крепления тормозного диска?

You definitely should install a clutch system like on snow mobiles

You need a gearbox. It's going to be way too fast. Also a clutch would be a good idea. Makes stopping and starting a whole lot easier. A tip, paint your steel with red oxide when you get it before it rusts. You can still weld it with a thin coat of paint. It will stop weld spatter and keep the rust away and so make final clean up and painting a lot easier. Fantastic work!

Yep, no clutch and no reverse. You could replace the primary pulley with a centrifugal clutch, but reverse will require an intermediary gearbox. I would also recommend another bearing near the large pulley at the front end of the driveshaft...

its very interesting to see how you set out the engine and transmission, i would have arranged it differently myself. However i am enjoying this 'series' alot so far and cat wait to see the final product :)

The world needs many many more young men with this talent..

I can tell you all that this drive set-up will not cut it...It needs a pair of hydraulic motors...one for left and one for right...That will give you forward and reverse on each motor independently...eliminate the brake discs...They will not have enough grab to turn that heavy of a vehicle...No way to run one track in reverse...The engine will need a hydraulic pump attached to run the 2 hydraulic motors...I've been following this build for a while now but Doctor DS dropped the ball on this video...

The one side of the differential is at an angle. That will cause problems and it wont move easy. Depending on which end is the front, it's going to pull one side or the other.

Пока не поздно, нужно ставить коробку переключения передач. Без сцепления никак, желательно сделать подушки на двигатель, ну или демпфер на пружинах. Удачной сборки! 😉

You’re going to need to put a clutch or torque converter on there so that the drive sprockets don’t spin whenever the engine is running. Might also want to consider some lower gearing depending on the weight of the finished tank.

That's a lot of hardware for so small of a engine. I love how "just do it" this is, no long term planning at any stage. I really hope it works.

Ставлю лайк за то, что в столь юном возрасте руки не из жопы. Парнишка сам варит, сверлит и т.д. Технические решения весьма спорны, сыроваты и слабоваты. Полевые испытания и процесс эксплуатации расставят все по местам. Но за старания еще раз лайк. К 25-30 годам будет грамотный специалист.

I don’t want to be a back seat builder but you should heat up those tracks and synch them in used motor oil to slow corrosion

U need the clutch and the maybe a reverse gear

Thank you for the subtitles. Keep at it: this is really taking shape. I can't wait to see how you solve the steering issue. You'll have to independently control the brakes to do it. Then, you'll need to solve how you stop the treads to clinging to the sides of the rim: that will cause the tracks to fail under load.

Clutch?

You are going to need a bearing block right behind the large pulley (too much flex in the shaft) and it is geared WAY too high. One way to reduce the ratio would be to make the the track drive "sprockets" out of smaller diameter rims. You will need more of a gear reduction than that, though. Other than that, it looks so cool! You'll figure it out. Thanks for sharing! :-)

A kvacilo, treba ti menjac, jesi siguran da ce taj motor moci da pokrene iz mesta tenk ? Sistem sa diferencijalom je ok , ali treba ti blokada ne mozes ostaviti samo tako. Moraš više da razmišljas pre nego što nešto napraviš, nisi trebao da sečeš bazu tenka, sadsi je dosta oslabio, a i trebaju ti zatezaci gusenica ( jedan pokretan točak koji moze da se pomera i šteluje po potrebi

Say what you want, This guy is good at what he does. Bravo!

Hey caution cover that drive shaft with a protective metal or hard plastic cover to avoid getting clothing caught in it when its spinning!!! That could pull and arm or leg off!

you need a extra bearing as close as possible to the pulleys now to axle has way to much bend in it when you activate the belt tensioner

Looks nice! I’ll be watching the rest of your videos shortly.

So awesome to see it all coming together. I am sure that is a great feeling to see the engine running and drive sprockets turning.

Bravo young man, if you have a problem with a part, just fix it. Live and learn, no problem.

Sweet, only the gearing is way to high for the weight, its gunna smoke belts if it even moves. Adapt a gearbox and run it chain drive with a clutch of some sort, only way its going to be reliable. Then you will have reverse also. Tinkering and learning new stuff always a good time though!

Блин я конечно хотел бы похвалить пацана за его труд... Да вообще то он молодец, старается. Но ему хоть бы помог что ли кто-нибудь! Он же нахрен таким макаром в российский автопром попадёт!

Hi, Really great work but there are a few things I have to mention: Does it have a clutch? The bearing on the transmission shaft is way to far from the pulley. If you put tension on the belts the axle will flex and you put a lot of additional stress on the bearing. Second thing to the transmission shaft: why you didnt put some spacers under the bearings? now the shaft is under permanent stress and the bearings too. As mentioned by others the missing bearing on the rear axle or wheels caused them to dont line up anymore with the tracks which will make them stuck or lead the differential to deliver constantly more power to one side so you will always drive in a circle and not straight ahead. Im really interested in how it will drive and are hoping for the next video. Regards

Theres nothing like having a "good Turner" around when you need one! Awesome!

Detecting a slight problem.... You need a clutch and a reverse gear

English subtitles please :)

Hvala brate

Phantastische Arbeit, junger Mann !!! Mein Respekt !

У БМД-1 траки и катки сними.Катки из алюминиевой брони лёгкие.Поставь на свою этажерку.Цыгане шумною толпою Толкали жопой паровоз И только к вечеру узнали, Что паровоз был без колес!

👍👍👍👍This is a killer build. Iv long wanted to have a tank. I'm 50 and back in the day one could buy a M4 Sherman fairly cheap. I remember asking Santa Claus for one lo!. I like the track design. Perhaps to make ease of in field repairs and cheaper bottom !ine. I will use solid steel rods cut to span the entire link and drilled on the ends for cotter pins with washers.So the worry of threads being chewed up and making nut removal a pain . Many Tanks use this drive pin system. I would add this to one or two links on your tracks to ease removal of the entire track or if one is thrown to ease putting it back on. I'm looking forward to seeing it complete. A potato gun would be an awesome final add on one that can fire graffiti 🎉 or tee shirts if you take it to public affairs on holidays. You have made me dust off my tape measure. Thanks for the killer videos I must now watch them all.👍👍👍

God bless you young man! Can't wait to see it finished!

Another fine job, can't wait to see it in action.

Cool build man. Just an idea maybe try a VW beetle transaxle with a 1600 motor and get more power and reverse to, pulse more control with a clutch.

No clutch to stop power to the driveshaft when sitting still?

Parabéns pelo belo trabalho, aguardando a PARTE 4.

Would love subtitles for this one. I think you had them on previous videos.

I have a number of major engineering concerns with this project. Unless they are addressed (and you may have plans for this) you will quickly run into trouble. 1. The driven axles have one bearing only and as the driveshafts have been welded on, no means to add another. This will break very quickly. 2. The prop shaft pulley is only supported on one side and again the side loads involved will cause strain and wear. It needs support on both sides of the pulley 3. There is now no way to remove the drive shafts to the wheels for maintenance, repair or modification. How do you change the brake discs? 4. There does not seem to be a clutch mechanism, if you are planning on using belt tension as a clutch, then this makes point 2 doubly important. Sorry to sound so negative, but this is a good project that was going so well, and suddenly compromises to get it finished have the potential to ruin a lot of good work. Have a think and hope you come up with solutions.

*digs transmission and brakes out of the trash* *just puts them in without any overhaul* *puts on rusty brake discs without getting the rust off to allow for metal on metal contact* *No gearbox inbetween engine and differential* This will be fun. Especially how low the differntial is to the ground, it will be interesting to see what happens when the tank climbs an obstacle and bottoms out on that part, if it doesnt tear off the transmission wheel thats sticking out first. But if he does any offroading at all he will be faced with problems of fluids not going where he wants them to go, and the motor crapping out due to loss of fuel, thats why most tank builds have custom made fuel and oil tanks, if not straight up a full hydraulic solution for the powertrain like on the tank Macro Machines built. Its almost like he doesnt know what he´s doing and has no plan of any sort, and just does stuff as he goes. Oh wait. Honestly i wouldn´t mind the "Figure things out as we go" approach if the music and editing wasn´t designed to make him look like a big badass when he just puts trash together hoping that it works, without a plan behind it.

For brake steering the best setup would be one where a very low ratio (1:1 being ideal) differential with brakes was used before the actual final reduction gears. This would reduce the strain on the brake discs. Most commercial traction steering system use multi-differential systems but those are tricky to replicate in a compact and reliable way by hobbyist on a budget.

I am looking forward to seeing the next installment. Looking pretty awesome!

9 лошадок маловато для гусянки. Надо было делать на электро приводе и батареях :) был бы в тренде.

It would be nice if you had subtitles as not all of us speak your language.

Awesome tank project, building things is fun. Thanks for the video

Nice transmission

I hope you can learn from your mistakes. If so you are going to learn a lot. Please concider redoing drive assembly, it really is a foulty design. In terms of alignment, ergonomy, forces and mechanical engineering.

Looks like he main concern in the comments this time is that the engine doesn't have enough power. I eagerly await to see how you'll prove us wrong in the next video!

Great! I hope we can see the finished product.

Dis is so cool! Imagin a homemade heavy tank...

You have excellent fabrication skills 👍

Ok nice work but you need a Clutch

hey buddy great job a few things from the video the tracks are to tight and you should fabricate a tensioner pulley to adjust track slack the other thing is there has to be play between the drive sprocket and the tracks here's why tracks twist and turn and need to have room to grab the track again without binding were they grab the track thanks

Awsome job looking forward for the next vid

Dude you are impressive

With all respect, you need a gearbox..

Excellent skills and imagination. I don't know anyone building themselves a personal tank.

Have no clue what your saying or what half the comments are..lol but keep up the work and don’t let them stop you. That said there are definitely some design flaws here but only way to learn is trial and error and it’s nice to see younger people actually still building stuff. 👍

You need a clutch

Moj tata je rekao da ce ti tokom prve voznje naj vjerojatnije popucat šarsfi na gusjenicama jer su pre tankt, on je bivsi vojnik

Now just the extras . You are awesome kiddo!!

Fin projekat. Moje mislje je da si trebao ubaciti citav mjenjac umjesto tog difrencijala. Imao bi i rikverc i daleko sporije brzine. Dugacka je to brzina (tesko ce i krenuti) za gusjenice a i za motor od 10-ak ks. Ne vidim kvacilo, ali izgleda da ces ga rijesiti španovanjem remena.

Decko trebace ti menjac,tako nece imati snage ni da krene,mnogo vremena i rada ulozeno u sve to pa ti na tome cestitam

fala bogu da ima neko sa balkana da snima ovako nesto.ekstra video!!!!

Yehey Finally with English translation, thank you so much , more power to your channel

Parabéns pelo sua dedicação e também poder compartilhar. Seu fã aqui do Brasil.

Great bit of construction love the vids but how are you going to engage and disengage the drive ?? Start i9t up and it will either stall or drive off on its own. :) Keep em coming.

that wobble in your brake rotors is going to give you trouble at some stage.

14:55 Dude that 'vise grip' thing is awesome.

The prototype tank is amazing... I was inspired to try to make it. Greetings from Indonesia.

I predict a reduction gear setup in your future.

Сойдет проехаться 50 - 100 километров. Потом или дифф рассыплется от переменных нагрузок даже без биения, либо гусеницы сотрутся оттого, что задние колеса под углом к остальным расположены. Ну или гусеницы будут слетать и заклинивать. Биение полуосей разобьет дифф и подшипниковые узлы еще быстрее. Один подшипниковый узел на полуось с радиальным подшипником с переходом на шрус вообще детское решение, как раз по возрасту автора - рассыплется под нагрузкой почти сразу. В целом конструкция работает, если дифф от грузовика, и два шруса на полуось, а не один, + другое крепление полуосей (без радиальных подшипников, которые вообще-то работают парами). Сцепление будет, кстати, как на мотоблоках прижимным роликом. Самое простое и оптимальное для легкой конструкции. На сайтах вездеходостроителей все эти косяки расписаны в деталях, с фото наступивших последствий.

Will the frame not buckle now cutting that out to fit the diff?

Are you going to put another bearing block closer to the drive pulley?

Mnogo ti brzo vrti za gusenice!!

Amazing project! Good luck guy. Greetings from Brazil!

I noticed when u put tension on the belt by your hand the shaft tends to bend a lil bit. I thin you need to reposition the pillow block little bit nearer to the main drive pully.

Congratulations my friend, you are doing a great job, well done again. Greetings from GREECE .

Hello, good tank my friend, Brazilian here.

It seems that a clutch or transmission would be needed instead of direct drive. Those belts might take a beating with the drive pulley spinning with the vehicle standing still. And, is that motor going to be big enough to move that beast?

It`ll work Ok the only thing you might have issues with is the runout on the Axle bushings they can shake the dickens out of the rearend Driveline start breaking welds And bearings .

Pozdrav iz Slovenije! In english now, make sure to make some sort of "case" or protection box for all the rotating parts BEFORE you attempt to drive it. That yellow thing that is spinning there is lethal (you know about tractor accdidents when people get caught in....kardan....) Great videos, keep it up! :)

Kid builds his own tank. Still a better weld job than Tesla :)

Doctor D.S. надеюсь сможешь перевести... - после ремённой передачи (можно использовать как сцепление) тебе нужно поставить последовательно 2 КПП для понижения оборотов и увеличения крутящего момента

Saludos amigo desde Panamá, excelente vídeo, muy creativo, usted tiene una imaginación sin limites

Good work bro! Waiting for next parts!

I suggest you to install something overhead outside to make you safe from rain. ❤❤❤❤❤

A neck braking top speed of 4 mph! And when you want to come to a full stop, shut the engine off.

Ты как волшебник) Молодец!

es fantástico lo que haces ,. espero verlo terminado ...saludos desde Uruguay