It appears a lot of people seem to think that the part in the video where i pull the car forwards is fake, which is understandable but not true. Pulling a car forwards on a flat floor really doesn’t require that much force, maybe 25-50kg max. Using a shaft with a radius of 1 cm equals to a torque of about (max) 50kg*cm required to pull the car forwards. The third test where i was able to reach a torque of about 132kg*cm was actually a lot harder but obviously seemed a lot easier because you’re “only” lifting 22kg at 6cm (132kg*cm) instead of pulling a big heavy car on wheels where you actually only require 50kg (max) at 1cm (50kg*cm).

@oguzhanylmazer2479

3 жыл бұрын

You could put a digital scale between the tow hook and the rope.

@BrianBrocken

3 жыл бұрын

Yes I might do this. I'll see if i can order one.

@laurensverheij921

3 жыл бұрын

@@BrianBrocken it might also be nice to convert your torque numbers to Nm (weight*9.81/length in meters)

@TheBPJo

3 жыл бұрын

you can easily calculate the necessary force with F = m*g and F_r=F*R with R= rolling Resistance of Tire on concrete. F_necessary needs to be higher than F_r , so that the car moves. m = 1500 kg (ford focus) , g=9,81m/s² , R = 0,01 --> F_necessary > 147,15 N . With a 6 cm radius, the necessary torque is about 9 Nm (6.64 ft-lb). and that is not that much.

@benzzoy

3 жыл бұрын

You should try pulling a truck out of sticky mud, with bonus points given if out of a mud *pit*! :)

Torque multiplication through a bunch of interlocking levers, positioned on a rotational axis, is a wonderful thing. Well done

Put the motor on the last gear and watch the fist spin at the speed of light

@BrianBrocken

3 жыл бұрын

😂

@JohnDoe-es5xh

3 жыл бұрын

There's a functioning gear train with that many spur gears, whose last spur gear (the slowest) is fixed. Don't remember, which museum it is in.

@xtjraymondx

3 жыл бұрын

@@JohnDoe-es5xh It’s at the MIT Museum: kzread.info/dash/bejne/iHd1lNmhoLCpntI.html

@joshuadelaughter7968

3 жыл бұрын

Haha. You'd need to supply way too much torque. Even if you could, it would just instantly break everything.

@explosivpotato4582

3 жыл бұрын

I watch a lego 1:1google gear train and.... Assuming u’d have all to torque in the universe.... Hehe first gear go BRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

the ding and check for the 22kg load test made me laugh really hard; the assembly broke, but useful data was still gathered! √

@BrianBrocken

4 жыл бұрын

Haha indeed it was 😉👍

@Snagglepuss1952

3 жыл бұрын

Looked like just the mounting lugs broke.

@BrianBrocken

3 жыл бұрын

The mounting holes of the servo didn't break on that particular test (they did in a later test with the Ford Focus when I pulled the handbrake). The part that broke in test 3 were the straps that held the servo in place 😜👍

@Snagglepuss1952

3 жыл бұрын

Brian Brocken the actual servo mechanism serviced everything though?

@mdatikhasan9477

3 жыл бұрын

GOMAS

People that doesn't know about 3d printing usually distrust in this manufacturing process and they materials but it's a matter of design. This type of videos make me feel the truth potential of 3D printing. Very much thanks for your work! And congrats!

@BrianBrocken

3 жыл бұрын

😁👍

@r1kkie

3 жыл бұрын

You should check this guy out: kzread.info/dron/e1Aj6VEO299Yq4WkXdoD3Q.html I really like the camera stand he makes with a bunch of printed parts.

@xl000

2 жыл бұрын

And they're right PLA will delaminate at some point after a few hours of work. It's ok for a proof of concept, but the last gears will suffer first.

@MyKonaRC

10 ай бұрын

3D Printing is great for proof of concept, then moves to real manufacturing by using stronger materials.

I consider 98% of 3D printed objects as literally useless crap like teddy bears, pen holders, figurines, etc. then there's the 2% like yours where real things are printed to do a real job. Great work and kudos to you x 100!

@BrianBrocken

4 жыл бұрын

Hahaha Thanks Phillip 😁👍

@rykerhasyounow

3 жыл бұрын

Unfortunately if you're watching yt vids, you're not going to see what's really going on. Just prototyped a rear light enclosure to perfection in 1 day. Would have taken me weeks otherwise. This is whats not getting put up online. Real engineering. 😕

@portlyoldman

3 жыл бұрын

Not sure which bit of the 3D printing community you’ve been observing but it’s so much more than you imply. I use my 3D printers for dozens of useful, practical projects as do all the people I know in the community. Having said that, I have made daft things - when asked - for people 😉

@cvspvr

3 жыл бұрын

teddy bears aren't useless :(

@PowerScissor

3 жыл бұрын

While it performs a function, it still takes a lot of time to design, breaks, redesign, breaks, redesign, along with sanding, usually need to reinforce with metal axles, real bearings, and in the end, after days of work, still doesn't outperform something you could buy on Amazon very cheap and get it next day. It's still fun, and satisfying...but can be frustrating. I spent months designing and 3d printing custom oraginzers, shelving, tool holders, etc for my work van....and one day my 4 year old daughter left the side door open and only 1 afternoon of direct sunlight ruined everything. Even though it was supposed high temperature resistance filament, everything warped enough where it either didn't work right anymore, or just looked bad enough I removed it.

It's amazing! until this moment, I could not imagine that printed products can withstand such a thing

@liamczarnecki3487

3 жыл бұрын

Every 18v drill out right now has a plastic gear box

@adityadabas9408

3 жыл бұрын

@Edgar Cordova 😕😕😕

@TheGiacomob

3 жыл бұрын

⁰⁰⁰⁰

@jettelo

3 жыл бұрын

3d print me a 3D PRINTER. 🤔🧐💯😁😬. I guess that would be GAY. WANTING SOMETHING YOU ALREADY HAVE!

@julienmauguin3214

3 жыл бұрын

When well designed and printed, 3d printed parts are amazingly strong

Great work Brian. This was certainly a lot of work. I appreciate your detail. Thanks.

So well done! Both the design and the video. Inspiring!

Herringbone gears are the master race.

Give this man a metal printer.

@BrianBrocken

3 жыл бұрын

Yes please 😁

@squishy_Rio

3 жыл бұрын

Hey, would these still work ok if you make a sand mold of em to pour aluminum in an at least have a high detailed shape of em in aluminum. But to try an help out see if it could help out slowing down the wear an tear of em by nickel plating the gears

@Gremlinke96

3 жыл бұрын

it's called metal casting

@squishy_Rio

3 жыл бұрын

@@Gremlinke96 theres also 3d metal printing now

@machy8515

3 жыл бұрын

@@squishy_Rio but it’s very very very expensive, unless if you using metal fill filament

Very impressive torque. I can't believe that's printed in plain PLA! Great job Brian!

@BrianBrocken

3 жыл бұрын

Thanks man 👍

@HariWiguna

3 жыл бұрын

@@BrianBrocken Next version, LIFT a Ford Taurus! lol I was kidding but... I wonder how many snatch blocks you would need to lift a car with your motor?! kzread.info/dash/bejne/f2arlbCTqrPdf7A.html

Lovee It, keep up this quality content. Loved every aspect of the video!!

@BrianBrocken

4 жыл бұрын

Thanks man, much appreciated 😁

@aumprajapati6811

4 жыл бұрын

Brian Brocken 👍

Give me a lever long enough and a fulcrum on which to place it, and I shall move the world.

@the_greystudios

3 жыл бұрын

No bro you can't were are you going to place your fulcrum

@andres-5748

3 жыл бұрын

_Arquimedes._

@sinchrotron

3 жыл бұрын

The guy who said that didn't know about material strength

@GeomancerHT

3 жыл бұрын

@@the_greystudios on the moon, he also asked for a lever long enough...

@ritesha8050

3 жыл бұрын

@@GeomancerHT yeah lol😂😂

Very good design, well done !

Amazing!!! Thanks for this channel that I can see practical engineering done..

Hi Brian, That is a terrific work. It always amazes me to see what a pair of gears can do.

You tube needs a love button. I would be giving it a smash for your work. Great stuff 😃

@BrianBrocken

4 жыл бұрын

haha that would be great ;-) thanks man

Now this is the guy we want who actually puts lube inside the gearbox

Mind blowing! Incredible Work! :) So inspirational. Thanks a ton for sharing! :)

Impressive job, bravoo!

I learned how to measure torque by watching the video thank you ^^

@HaIPeHaOP

3 жыл бұрын

I hope you didn't confuse the units like the author did lol, it's force*distance, not force/distance

Congratulations, very good project

Wow! Incredible! Very NICE job!

Good job. Good choice on the shape of the gears, they make less noise and are more powerful. Two of these Could fit into a small tracked vehicle, printed with ABS in this case.

Wooow it is incredible that how this small motor can pull a car💜👌

That was great . Good job sir

Awesome work man

When you realize he has a belgian plate: Wtf im watching someone who lives in my country, and he is big brain.

Did you check the temperature while the Focus was being towed? That would be interesting to see! Great idea, and good work!🤟👍

Une très bonne maitrise de fusion 360 ! Ce boitier d'essai est une vraie réussite ! Bravo pour ce projet ! A very good mastery of 360 fusion ! This test box is a real success ! Well done for this project !

@BrianBrocken

3 жыл бұрын

Merci beaucoup Georges!

Never seen double helical gear in use...It would be real challenge to build one by conventional methods...Thanks for nice video!

Love the heatshrink color easter egg :)

@BrianBrocken

3 жыл бұрын

Funny enough this wasn't done on purpose haha

Finally someone using 3d printing for something useful instead of shitty knick knacks I do have to point out it doesnt really take much force to move a car on a flat surface especially concrete. Probablly only takes like 15 to 20 pounds to pull or push

@BrianBrocken

3 жыл бұрын

Hahaha this is actually true. Test number 3 with the 22 kg weight was actually a lot harder than the ford but it looks way cooler 😎, I did try to pull the car forward with its handbrake on, but then the bevel gears in the first stage started to slip and one of the tabs broke off, I might give this another try in the future.

Wow, nice work gratulation , you are a real engineer

Excellent work

For anyone else confused by the 'kg/cm' torque measurements: I *think* I'm convinced I converted it correctly to both SAE and SI units I think are more familiar: That's about 13 N*m, or 17 Lbf*ft, which isn't _insane_ considering the 80+ pounds most cars' lug nuts are torqued to. Just means you need a longer lever, though. Or a bigger gear reduction, though :)

Much better with the sound turned off. Kudo on this print and build.

@ryanmalin

3 жыл бұрын

Nah it was much better with the sound turned on

Nice gear system You have a good talente

Him lubricating the gearbox while its on scarred me for a second

Wow I need to learn some stuff from this.

5:49 do you even lift, bro!?

@shoresy6927

3 жыл бұрын

I don't get it

@EntropyAgent

3 жыл бұрын

Put the car in park and tow the forklift!

@sign_verken

3 жыл бұрын

@@shoresy6927 r/ woosh I guess

@ramadavince6611

3 жыл бұрын

Yes it lift that thing if you r asking

@tushardewde5715

3 жыл бұрын

Do you use Byju's data handling survey dialogue

Masterfully engineered and built.

Awesome bro nice work

This is great, we need more functional (and ideally parametric) 3D prints! Who cares about vases? Just a little critic: torque is measured in force TIMES length. e.g. 13kg at 6cm corresponds to 13kg * 9,81 N/kg * 6cm = 765 Ncm, at least here on earth.

@wardwyseur

3 жыл бұрын

i think those small servo's u can buy are rated by kg at 1cm from the pivot point and that is why he puts it like this

@phunmaster2000

3 жыл бұрын

@@wardwyseur his point was that you're supposed to multiply, in the video he divides, the units used are fine

@HotelPapa100

3 жыл бұрын

@@phunmaster2000 Kinda. The use of kg for force is illustrative but not strictly admissible.

@yosyp5905

3 жыл бұрын

@@phunmaster2000 kg/cm doesn't mean anything in physics

@sadsock

3 жыл бұрын

@Yosyp. Not sure that’s strictly true. You could legitimately state the mass of say an unstressed wire rope in kg/cm.

1:54 I really LOVE your reference to your national tricolor :)

Yo deserve your blue finger never been so proud to give it to somebody Congrats for ur video

Wow it's amazing bro

I like this video until we saw the scale of the servo, then I was seriously impressed, cudos to you.

TEST 4: FORD FOCUS XD I LOVE IT!

Amazing video

Great project, just spent a while scouring your links before I found the dimensions of the 20mm shaft you forgot to mention in the supplies lists 😉 you might want to add it as a part on the parts list.

Yeah, gears are fun. Since you have mentioned the word "servo" the thing that I would like to see tested the most is the backlash. Wear over time and under load would be even more informative.

I have an interesting question, do you think it’s possible to design a 3D printed version of a gearbox for bicycle? Like the pinion gearbox, those things are massively expensive and if they could be home 3d printed that would be so amazing…

@kingmasterlord

2 жыл бұрын

yes

Brilliant work, Brian! Keep it up!

@BrianBrocken

3 жыл бұрын

Thanks Antonio 😉👍

I love the sound of it

Really powerful gearbox. Did you calculate the reduction ratio? I wondered how much. And i surprised how did the gears or torque arm brake? Btw awesome design and project!

@BrianBrocken

4 жыл бұрын

Thanks Retsetman, yes i did, it has a ratio of about 162:1 and would theoretically have a torque of about 297 kg/cm. And non of the gears broke during testing, the only part that broke were the mounting tabs 😜

@RajeshPachaikani

3 жыл бұрын

The unit of torque is Kgcm or Newton-Meter. Kg/cm is not unit of anything. Sorry for nitpicking 👍🏿

@jonasstahl9826

3 жыл бұрын

@@RajeshPachaikani Sure it is Not the correct unit but it is mostly used for servos in Radio Controller Cars or plane.

@pravindahiya719

3 жыл бұрын

@@RajeshPachaikani it's not the SI unit torque. Torque can have any unit consisting a unit of force multiplied by a unit of length - users convenience determines which one he wants !

@ianr2002

3 жыл бұрын

@@BrianBrocken Did you take into account the motor's gearbox as well?

5:16 Unit of torque is in this case kg*cm instead of kg/cm! Anyway, very impressive

@lukasseirlehner3080

3 жыл бұрын

i searched for that comment😅

@korkenknopfus

3 жыл бұрын

Lukas Seirlehner Me too!

@goncalomarques251

3 жыл бұрын

Yeah, I was confused with the units at first

Absolutely bonkers! The execution here is excellent!!

@BrianBrocken

4 жыл бұрын

Haha thank you very much Avo 😁👍

very good work

Сделано великолепно, однозначно лайк.

@north_velotruck

3 жыл бұрын

Всё это конечно круто, но пластиковые шестерни как то не серьёзно, только для игрушек годится. У ФОРДА изначально накат хороший, ещё и колёса подкачали чтоб наверняка вот он и поехал, там усилие то относительно небольшое требуется чтоб его сдвинуть по ровненькой поверхности. Редуктор на 3D принтере это конечно весьма впечатляет, но постоянно его лучше так не нагружать, зубья срежет.

Acting as a electrical winding rope hook and install it at the bumper of 4x4 truck。Save much money.

@rik0_

3 жыл бұрын

ray-char c bad idea xd

@ianbudgetrc2574

3 жыл бұрын

It's a different story when you're pulling your 4x4 uphill with a winch hooked to a tree 😂

@user-st9oh8uu7l

2 жыл бұрын

Good joke))

Excellent

woww amazing job

Chevron, André Citroen Style!

Small remark, but not unimportant. Torque is, as you know, the product of a force and a distance. The units should be multiplied as well: kg x cm, not kg/cm. Really awesome project, and good editing!

@BrianBrocken

4 жыл бұрын

Ok thank you Dirk ;-)

@CarlosMendoza-md9rr

3 жыл бұрын

So a part is badly edited, ?? and the test results are not bad ???

@saleplains

3 жыл бұрын

i mean yes but also no lol, its the cross product of a force vector and a distance vector. kg is a unit of mass. the force in this case is the gravitational force acting on the mass. 1 newton is 1 (kg⋅m)/s^2. surface gravity here about 9.81m/s^2. the most typical torque unit being the newton⋅meter (N⋅m) so for the final 22kg test we get a peak torque of just shy of 13 N⋅m when the servo arm is parallel to the horizon. this is quite a good result. however the mistake is more understandable here because for some truly unknowable reason the actual manufacturers of hobby grade servos such as Spektrum (the maker of his remote) routinely incorrectly use kg⋅cm instead of either N⋅m or mN⋅m (milli newton meter). This likely stems from the fact that on many of these companies rate their product using the imperial system and then simply post a metric conversion and some dumb technical writer got confused. this is because while we think of pounds and kilograms as being imperial and metric counterparts they are actually entirely different properties. pounds are not a measure of mass but are treated as such in some contexts even though weight is a force and so pounds are a force unit. this is why the imperial standard torque unit is the foot⋅pound (ft⋅lb) so someone at the company with limited understanding just converted feet to meters and pounds to kilograms and called it a day. TL:DR excellent servo and excellent video and someone at spektrum needs a talking to thanks for sharing your work with us

Nice work

Great work mate. Subbed 😁

@BrianBrocken

3 жыл бұрын

Thanks Jim 😁

6:04 surprised

I have an experiment if like to conduct that I'd happily share with you. Would you be willing to send the files and parts list to make that contraption to me?

@BrianBrocken

3 жыл бұрын

Sure man, all the info and part lists can be found on my hackaday page: hackaday.io/project/173854-3d-printed-high-torque-servogearbox-version-2 The STL-files are free and can be found here: www.thingiverse.com/thing:4547703 The Fusion 360 source files can be found here: www.cgtrader.com/3d-print-models/hobby-diy/robotics/3d-printable-high-torque-servo-gearbox-version-2 All the links above can also be found on my hackaday page.

@moxzy3213

3 жыл бұрын

Gears literally are just spinning levers afterall

Wow great video. Like your time-lapse of the work in fusion. You got my sub.

@BrianBrocken

4 жыл бұрын

Thanks man 😁👍

Very small things can entertain you whole life nice video keep it up ☺️☺️😉👍👍👍👍

Great video! I see you're using PWM for the motor, maybe change the PWM frequency to something like 30-40kHz so that it's outside the audible range? It can get a bit annoying

@BrianBrocken

3 жыл бұрын

Yes some people have also recommended this to me, I’ll have a look into it.

next project: Car lifter ;)

Unexpected test at the end 😂👍👏

Wow. It's amazing!

A child can push the car on neutral if it is on a horisontal smooth pave.

@tyramid

3 жыл бұрын

But children can't be 3d printed.

@xymist5605

3 жыл бұрын

@@tyramid How would you describe their construction process, then? It's as close to 3D printing as anything else, I'd say!

@salutoitoi

3 жыл бұрын

@@xymist5605 They are FDM indeed

@luke7503

3 жыл бұрын

Xymist mitosis

@lennartekdahl8298

3 жыл бұрын

ohh thats good.....

You should try it with the car in gear and see what happens.

beautiful!

Very impressive

Servos on small rc trainer: 9g servo. Servos on a full size rc airbus a380:

Bizar hoe sterk dat plastic is.

@rollercoasterkid1237

3 жыл бұрын

What um English

@Houtarou_Hyouka_Unforgiven

3 жыл бұрын

@@rollercoasterkid1237 what is he saying Also Hi coaster enthusiast

@BrianBrocken

3 жыл бұрын

He says: Crazy how strong plastic can be.

@Houtarou_Hyouka_Unforgiven

3 жыл бұрын

@@BrianBrocken ok

@jelle8055

3 жыл бұрын

@@BrianBrocken Sorry, next time I will comment in english.

amazing

Servo quá khoẻ luôn , cách làm rất chính xác và chuyên nghiệp, servo khoẻ này rất cần cho mô hình điều khiển từ xa có trọng tải điều khiển lớn

Waw, unbelievable ! Awesome video, great ingenuity, but.... why that stupid music in the background. Defenately you could do better with background music !

@BrianBrocken

4 жыл бұрын

Hello phillip, I’m trying but it’s hard to find some good non copyrighted music and also not everyone has the same taste in music

@rykerhasyounow

3 жыл бұрын

#mute

@klausbrinck2137

3 жыл бұрын

Music was ok, it had an ironic undertone, since it contrasted to the video-content.

@baldeagle5297

3 жыл бұрын

@@BrianBrocken That's why I prefer no music in a video like this. It can usually only detract, it seldom enhances.

@PhG1961

2 жыл бұрын

@@BrianBrocken Je bent dus van België/Vous-êtes de la Belgique. Nl of Fr ?

Gears are like an unparched glitch.

Very cool love it. Will be Great for robotics

*Don't underestimate the power of mechanical advantage!!!*

This is why you don't need torque when you have hp and hearing.

311 dislike?!?!? Why???

@BrianBrocken

3 жыл бұрын

Some people are convinced this is fake (which I really have to take as a compliment actually), some people don’t like the music, some people prefer videos with a voice over, etc...

@90chiellini

3 жыл бұрын

@@BrianBrocken I uploaded this video, but sometimes I downvote just because I don't want similar content to be recommended to me. Not that videos are bad, but I don't watch make up videos and if one auto-plays, I just downvote and move to next one

Winding a rope on an axle as a winch multiplies the torque enormously, the narrower the axle. You could probably pull the car with a single 10:1 reduction stage and some 2mm dyneema rope on a 6mm shaft, for example.

Very good. Fantastic.

This reminds me why I bought that printer. To make real things.

This music is giving me cancer

@danek_hren

11 ай бұрын

Keep your opinion to yourself

@DragnEYE

11 ай бұрын

@@danek_hren That is a statement, not an opinion. I stated that the music was giving me cancer.

I wish all the gears in my RC Cars were designed like this! 🤯

Thats Really Crazy Friend! 💓 Which software you use? And how can I design such gears?

@BrianBrocken

4 жыл бұрын

Thanks man, The software i use for the design is Fusion 360 and I used 2 plugins to create the bevel and double helical gears, the one for the bevel gear is 40 dollars but well worth it's money. you can find them here: apps.autodesk.com/FUSION/en/Detail/Index?id=2427789559362467821&appLang=en&os=Win64 apps.autodesk.com/FUSION/en/Detail/Index?id=9029586664984391977&appLang=en&os=Win64

good job

Nice Video!

Very good machine.

That things a little powerhouse!