Making the Front DISC Brake System for the V4 RC Car (Rear Brakes will follow)

[@johnnyq90]

About the 3d printed part: The top of the part has a slight slope which had to be supported. Also, I printed it at 0.28mm layer height which made the surface even worse (I tried it) I didn't any method to fill it, so I printed it again.

[@frederikdubois7945]

Even with the slight slope, you could have orientated it so that the slope is flat against the floor some slicer have automatic detection of flat surface and arrange the part perfectly flat. The wall of the enclosure instead of being printed straight up, they would have this small slope but a printer can print at least 45 degree without support so it wouldn't have mattered!

[@lowryder3209]

Have you tried a baby CIM from andymark for the starting motor?

[@nickofthenine9449]

Are you worried about overheating the electronics since you shrouded them? I'm not sure what your electrical draw is .. but I saw 50A on the ESC.

[@michal_c9007]

That's why you print in more layers so you don't need support

[@andydufresne3635]

Let the man do his work, y'all can go start your own channel if you have the knowledge.

[@soldadoryanbr7776]

This guy puts more effort in his rc car than I put in my life

[@pokerdealer2003]

SoldadoRyan Br777 your doing it wrong then

[@theyes2072]

The Mayor are u geh?

[@rawritskc]

What are you going to do about it?

[@pokerdealer2003]

The Yes geh AF

[@SketchbookGuitar]

He puts more effort making those parts than me sending my car to change my brake pads.

[@KevinTalbotTV]

I love how you put all that effort into making little things like the receiver mount, most would just stick it straight to the chassis

[@lisaledden2179]

I am one of your subsribers and love his and your videos. That is what I call PROFESSIONAL LOL your professional videos Kev are Halarious!!!! Keep up the good work Kev even tho we are on JohnnyQ90's channel:)

[@johnnyq90]

Thanks Kev! Oddly enough the receiver in vertical position had better clearance with the cover, that's why I ended up doing it like this.

[@makewithmegma]

Wow kev is also here💕👍

[@jamescampbell4205]

Constantly in awe of how much "real" engineering goes into these RC cars. It's awesome, good job!

[@DoctorBadVibez]

@Captain MufDyven not to forget, we can fix these things because hobby grade suppliers provide parts, therefore a bad day is not the end.

[@tunespt]

RC engineering, has so many pages as real vehicle engineering, except for life cells, everything else requires a lot of thinking and design.

[@dennisanderson509]

Z@Captain MufDyven ,a

[@roxasparks]

Any engineering is engineering no matter how small.

[@ryanrlp8385]

Check out crf Team orion engine rc with cnc production in yt

[@colloperrorica]

Omg this channel is like a medicine for quarantine depression Okay so it's a good time for an edit I guess, besides all the fancy comments and jokes, I wish all the people who are infected to get well and this pandemic will be over so soon. For the people who lost their lives, we cannot feel sorry enough for them, may they rest in peace. And for all health care workers out there, we cannot thank you enough, our prayers are with you...

[@gretchenmorfea5988]

colloperrorica agreed

[@dieselgeezer18]

not every sad feeling is depression...

[@AridersLifeYT]

bro if 14 days indoors in your own house is causing u depression then you need to reevaluate your life.

[@colloperrorica]

BikeStuff I do agree

[@colloperrorica]

A dozen of potatos and a fat cat smelling them your nickname just cured my cancer

[@tannerkerfes4451]

Why am I so fascinated with this!?!? Idk why but something about miniature car parts is intriguing as hell!!!

[@gabrielcosta3301]

Never have I been so excited for a youtube project to keep moving forward

[@aBROhamLincoln42069]

You should figure a way to add “line lock” so you can control just the front brakes to do burnouts

Yes

[@1one3_Racing]

Unplug the rear servo

[@turbodsm96]

It’s AWD.

[@1one3_Racing]

@@turbodsm96 that's not hard to change

[@wastelandwill6960]

there probably wont be enough torque to burnout

[@Motocue912]

It’s great to see there are people like me in this world that know how to build things and build things right. I’ve been a machinist since 10 years old hanging around my dad’s machine shop watching my dad he was a master machinist. I built some of the greatest pool cues for the last 20 years built all my own jigs . I have a machine shop with over nine lathes , Mills all old school from the 40s 50s and 60s that I have completely rebuild myself mint . I’m in my late 40’s and retired now for the most part . Watching your vids takes away anxiety and is very soothing. We need to team up and build some shit...I built three CNC machines from scratch and they were better than anything sold for Cues vary highend like the stuff your doing . I built my own spindles u name it .. your good though ... vary good ... love the vids ..

[@Very_Angry_Citizen]

Your attention to detail is some NASA level 25th century stuff! You ROCK bro!

[@rcdoebbora]

Good idea 👍 👍 👍

[@DiscoaxOfficial]

Hey man your work is great! I’ve always wanted to see someone to do this right like you have been.

[@stimpacat]

Absolutely Brilliant, I know every one of us that RC'd wanted this stuff. Unfortunately for us we lived in the 80's and had nothing close to this. Kids today should be so thankfull that all this is avaliable today. I remember when the wire edm started and thought that was cool, then water jets,milling machines that are computerized, awesome.what I would have done to my Kyosha ZR-1 Corvette.

[@orange_tweleve]

Well shit pops its still expensive af

[@steinarne79]

When you are at this point of production and "scale parts", I want to add some constructive critics. There is only one thing. And that is the radial holes you make on the discs. On real cars the holes from the radial holes, match up with the axial hole pattern. Since you use such large drill for the radial drilling. You could just offset from tangent and actually hit all three holes you drill axial. To do off tangent drilling, first use a normal endmill to make the pilot surface and hole, and then drill the holes as normal. Awesome work. You take your 5th to new levels every time. Keep it up!

[@bruhlol9694]

Please explain in English

[@davidstein538]

@@bruhlol9694 He's saying the holes drilled into the face of the rotor do not align with the holes drilled into the sides of the rotor, as you would see on a more "conventional" drilled and vented brake rotor.

[@EggNuggets]

bruh lol brain donor

[@bruhlol9694]

@@EggNuggets I use Google translate to understand English. Complex sentences in English aren't my strong suit.

[@moerow8215]

Everyone is a critic but you're the man who knows his tools. At the end of the day it's inspirational top notch work like always.

[@Argyle2016]

Ich bin Zimmermann und Schreiner und mag mein Beruf aber wenn ich Ihre Arbeiten sehe staune ich sehr mit welcher Hingabe Sie Arbeiten in der Miniaturen Welt. Ein echtes Talent.. Liebe Grüsse aus der 🇨🇭

[@klab3929]

Why didn't your print the cover the other way around so you wouldn't need supports? Edit: check out the pinned comment he made about this :)

[@mushious]

Would have had a much nicer surface finish if he did, less post-prep.

[@klab3929]

@@mushious less print time, less material etc etc...

[@RyanStone143]

Came here to say the same...

[@torentmonkey]

you beat me to this comment :))

[@dannyb9083]

Johnny on another comment "I did initially, but the supports created gaps that would not look good even after filling them."

[@uvtech2061]

Как всегда вовремя. Смотрю только перед сном, расслабляют. Молодец! Русские в городе!

[@aidene5259]

This series has some of the most entertaining videos on KZbin, thank you.

[@boznorris527]

I love the fact that all the wiring is all clean and tidy but you say it's a mess.... That is pure attention to detail and it's A+++ work fair play 🤙🤙

[@rudranshsharma6255]

imagine an ABS system using electronics for this car... GOOD JOB m8

[@other2494]

I bet will see that if the starter gets delayed again haha

[@mq1991]

Most radios now have a pulsing function for the brakes built in. If you just activate it on that channel for the servo it should work. (its a non feedback system, so it basically just pulses the brakes.) A real abs system would be crazy though.

[@Rocan0]

That would require at least 4 rotationnal speed sensor (one for each wheel), and a microcontroller that receive the brake signal, and command the brakes by mixing the informations given by the sensors and the order given by the transmitter/receiver... Maybe on bigger cars, but here we are running out of space 😖

[@other2494]

@Dave Iauco If only ABS would be able to still let you control the car

[@rudranshsharma6255]

@Dave Iauco maybe he can out an On/Off switch for ABS

[@julianrossi8460]

This has to be the most unique rc car out there. The shear attention to detail is amazing

[@theforzator2661]

I was waiting this video for a long time good job

[@josephmorales7777]

This guy needs to make a business in making REALISTIC RC cars for sale because my jaw dropped when the brakes came out flawless

[@thebarkingmouse]

Absolutely badass work! Makes me wish I'd learned to use machine tools when I was younger. May be a retirement project.

[@lachlanbird9688]

I started at 15 , made good career . I retired in 2014 ...last ten years (2004 - 2014) working in D.O.D. Aerospace . aascworld.com

[@cernst29]

It's never too late to learn, the issue for me is money. If I had the money I would definitely buy a CNC, lathe, 3d printer and stuff but that is a pretty penny for those machines plus the training involved. I have those machines at work in my maintenance department but I have no time to learn how to use them. It always comes down to money. This is amazing work and I dream one day I can have access to stuff like this. I love building rc cars but this takes it to a whole other level.

[@cernst29]

@@lachlanbird9688 I just filled out an application with them. Thankyou for the link

[@johnpham48]

Brain + tools = masterpiece. I know it’s just a toy but it’s awesome to watch.

[@andydufresne3635]

Dude, you have so much skill, along with some OCD I imagine. Great work! Can't wait to see it running again 😁

[@JesusChrist-xc4yb]

Isn't OCD a disorder that makes you want to kill your family?

[@menom7]

Dude,the brake-discs YOU MADE............are SO MUCH BETTER!!! They even LOOK way better too and I'm SURE they will remove WAY MORE Heat buildup under heavy braking,than those steel ones ever could!!! Excellent job on EVERYTHING You put in this video today!!! Can't wait to see this beautiful machine finished!!! :-)

[@toufmxoyios8821]

me : *almost dead beacuse im bored inside my house* Johnny : i can save you!

[@cernst29]

Took the words out of my mouth

[@bodhifarero2761]

Once I saw a new video about the rc car my day just got a whole lot better

[@ConspiraGoose]

2:28 my brain during isolation

[@joaopedrosambatti2474]

Hey

[@joaopedrosambatti2474]

I found another one of the family

[@NathanStorer-RC]

I know that breaks are more of a nitro powered/gas powered necessity, but honestly I wish I had a front break system like that for my 2WD Rustler. This is really amazing, you did a great job!

[@KonG-rk4od]

Bro.. Could've printed the cover upside down. Still turned out nice though. Try using tree supports if you're using cura. Tree supports pop off super easy and reduce print time!

[@markdamienrapada9626]

Wow , 3d printer , cnc , lathe wow, you even have a precise handtap tool, must haves for hobbyist.

[@trashtotransportations5857]

It’s going to be such a pain linking all those brakesup

[@kleetus92]

curious if he goes cable, or makes a bunch of mini hydraulic cylinders!

[@LeglessWonder]

@@kleetus92 any other person I'd wager they'd do cable. But knowing Johnny he will make a full automotive braking system. Booster, lines, ABS, the whole 9.

[@WATCHING-247]

@@LeglessWonder those are mechanical calipers not hydraulic piston type to use hydraulics to power them is almost ridiculous however hydraulic is always better

[@darabradley5173]

They’ll probably be servo operated

[@meestasqueed5867]

Cody Evans From what I saw in the vid, the brake calipers do not look like they are set up for a hydraulic system. Although, if Johnny somehow manages to figure out an automotive grade system you describe, this car would be on a whole other level.

[@fireking700]

Not into rc cars i'm a mountainbiker but I can assure you that your discs are beautiful! Awesome job 👍

[@sixpest]

1:50 Maybe one day we can have 3d printers like that

[@izleaa]

I was looking for that and found out here www.amazon.com/Official-Creality-3D-Printer-Source/dp/B07D218NX3

[@sopharpro]

I love this kind of work!

[@thebrickshooter5974]

A little question here: Will the engine get hot enough to affect the 3D printed electronics cover?

[@OttomanDrifter91]

Now that slotted rotors are installed, i'm expecting a last minute ventilation structure inside the body

[@DK-Design]

Glass transition: 70°C on PLA, 80°C on PETG & 105°C on ABS I've put a PETG print in my car (in the Florida summer sun - 38°C out side) and it was fine.

[@tonywright8294]

It’s such a worry isn’t it?

[@danjordan1979]

Your videos make lockdown in the UK much more bearable. so much detail, and patience. Incredible videos!

[@ScarabChris]

As a big RC junkie myself I would love to have these tools and machines. But somehow I don't think I will be able to convince my wife that I need $100K in tools and equipment to modify $500 RC cars and boats. LOL

[@angelvaca9047]

more like just 10 to 15k, if you made your own 5 axis nc can be as low as 8k (small 3 axis CNC, small 5 axis CNC and a small cnc lathe)

[@fiorevicidomini8220]

Absolutely crazy.... Fantastic job Awesome handmade components... Well done!!

[@Nedeles]

wow, that is so much plastic waste try print it upside down, with mostly rounded edges like those, you can eliminate all the support with most printers

[@johnnyq90]

I did initially, but the supports created gaps that would not look good even after filling them.

[@crustybasterd1352]

@Ck CHEUNG I figured the same but after further thinking I realised that since the edged of the print were round the printer would've had some trouble printing them since the overhangs would've been so steep!

[@mank01101]

CrustyBasterd if you are going to sand it anyway I’d just go for a little bit support under the rounded edges

[@johnnyq90]

@Ck CHEUNG The top surface has a slight slope which had to be supported. Combined with a layer height of 0.28mm and you have a surface that needs sanding for days.

[@XENON-04]

probably the best RC car on the planet for now

[@Calthecool]

I fell your pain when it comes to slow shipping. I have a project I’m working on, but the arrival time for the parts is like a month away.

[@Ixsys]

What an absolutely incredible series this has become. @JohnnyQ90 - Please never stop.

[@jedrek29t]

👍

[@13maxjax]

Some people are just brilliant. Kudos Johnny.

[@carterdavis2793]

All that I got out of this video was *"It needs a bigger frame"*

[@xavfunk]

Hats off to you man .... you can inspire anyone

[@tristan5177]

Is this v4 powerfull enough with single carb, i suggest small dual carb with venturi in front

[@LuxGamer16]

If you checked out is other vids you would know that he played around with different carb layouts

[@tristan5177]

@@LuxGamer16 I know, I've seen every attempts, I still can tell what i think will work best

[@lrmcb9143]

Hello JohnnyQ90! I dont know if you'll ever see this, but I had an idea i would think is worth trying! I dont know if you are still attempting to do the Supercharger, but if you are, something you could try is to increase the size of it. The intake port may be too small to pull in extra air that you need and the fins of the charger arent quite big enough to meet expectations (too many restrictions). It works with more of a relativity compaired to a direct downsized that campairs to the engine that a real super or turbo charger is mounted to. The one you made looks relatively close to size comparison of a real engine and charger. Full sized super/turbochargers are big enough to pull in neccessary air needed without making a large negative vacuum (that isnt caused by intake filter, of course). Those have the clearences that allow for large airflow. The one you made was fairly small and the perpeller may not have enough surface area and room to move enough air to create positive pressure. So an upsizing may be a good bet to more likely work. And in doing so, the perpellor may not need to spin as fast as with the gear ratios you tried with the other. And if you still want to do a charger but not like the one you did, you could also attempt a turbocharger setup. Do you remember the 3-fin pneumatic propellor you did sometime in 2013 (that was copied and video taped in 2017)? You could use something like that for the exhaust side and it should be able spin fast enough to build pressure on the intake side. (I would recommend using the 4 propellor design for obvious propellor efficiency). Just have to make sure the exhaust port is big enough for it to pass through well enough. ;) Good luck on your endeavers!

[@jesushurtado3094]

there is no way to put a turbo

[@comfort_in_discomfort]

I love this. Working on full size race cars and watching this.

[@ryanfarn8869]

When can we see this car going wide open on the road

[@BK42Cycles]

Excellent work!!!

[@Red-Eagle]

Cant wait to see this complete. Deff a nice adventure to see the car as it develops

[@billinator21]

This is the coolest thing to me, ive recently been watching videos of these real mini engines and different builds. I'd love to have an rc car build completely operational like this just for show.

[@general_skunk-4gaming780]

The best R/C Car build ever

[@IntheBay85]

This thing is turning out SO. GORGEOUS.

[@khaledabdelaziz1903]

Such artist ur channel is pure joy to me

[@marioncobretti7870]

That tiny cnc type machine is insane. Here i was thinking a mini lathe was badass , then this shows up in my recommended

[@I-_-I.]

hi johnny, i'm accompanying you here from brazil and i have to say i'm addicted to your videos, i've seen them all and i can't get enough of repeating until a new one comes out! never stop with the detail you have in your videos.

[@mikloshejjas114]

On 1/5th scale onroad cars we use independent hydraulic front and rear brakes. They come with epoxi discs and mostly steel brake pads. The reason for this is that metal discs easily bend from relatively small crashes. The risk is smaller if you're able to release the brakes before the impact. Probably heard a few times: The 3D printed cover could be printed in half of the time and better surface finish if you print it upside down. I get that there is a slope on the top, but it would require much less support. Also, sometimes You're better off printing not exactly what you need and remove the excess material later.

[@shelbykingnfs7216]

Hands down best rc project on youtube. Always super excited when i see a new episode

[@mitkasan8915]

Very, very, very cool! 👍

[@jbirdmax]

Wow. That was fenomenal. Wish I had all that equipment.

[@slamdunk6170]

Love seeing u put ur skills to work, u truly are a bad ass,,only one problem I see, Not nearly enough videos of ur craftsmanship,,peace and love.

[@ea.6125]

Why would some people dislike something like this? Awesome work!!!

[@nicklasgram9490]

The moment I saw the brakes and calipers my jaw dropped they were so cute and cool looking

[@vwnay]

Getting better and better ! Please make some motorsport style wheels on cnc 👍

[@realbogus]

Dude, you got mad skillz!!! I am so impressed. You work is inspiring me to get back into RC cars and get creative!!! Awesome stuff!!!

[@duanehenicke6602]

As a farmer that occasionally has to modify things, this fascinates me. Little more high tech than my stick welder, acetylene torch, chop saw and couple different hand grinders.

[@Slikx666]

Those breaks look bloody lovely.

[@Logstudent1988]

man.. honestly.. i can't wait to see this car fully fleshed by your hands..

[@herrysp]

You Have The Industrie Equipment Completed In Home.... So U Can Do Anything All About You Imagination of Your Mine. Very Good!

[@rolandofuentes6444]

Good level skills.... and this guy just started "playing" with compressed air.. AWESOME

[@julio.eduardocenteno1471]

It´s awesome how everything fits!! THANKS FOR SHARING!

[@Sathyapriyan123123]

Please post regularly, please reduce the gaps between the videos, love your work so fascinating, cheers from India

[@yoyosfpv823]

looking good, awesome brake rotors and caliper mounts. hope all is well with this pandemic that's going around the world

[@22Tech]

WOW that looks so clean and amazing

[@oluffriesthomsen7680]

So beatiful and pleasing to watch, AMAZING JOB 👍👍👍👍👍

[@navvinbhat2342]

beautifully made the small vented disc awesome man .👍👌👍👌

[@josecerqueiracolinas2115]

Good work!

[@fazecrew]

omg! a meticulous work! amazing results! you are an artist! thx for your video.

[@whi5tler_1337]

*_THIS BOAT IS BEAUTIFUL, SHOULD SAIL LIKE A DREAM_* 🇨🇲

[@Dioggo11]

Can't wait to see this bad boy running!

[@peterdelaforce2346]

Wicked, really enjoyed the disc construction

[@Keith5700]

Hi, do you anodise any of your ally components? I anodise almost everything in the shed, and it’s very straightforward. Have a look at my car if you haven’t seen it. Cheers.

[@tspbod260]

Wow what a work of art.

[@biblethumpr2161]

We run disc brakes in Aluminum on all our snowmobiles, special soft pads are the key to being successful.

[@MrTaylorscorner25]

Amazing rc building skills at it's best in my books ,,,,great work

[@nickeleytheriou5005]

Υπέροχα videos !! Είσαι εκπληκτικός Johnny !! ...μια όαση μέσα στην έρημο της καραντίνας

[@melvin3064]

This rc car will be a masterpiece

[@xsnrgy05]

OMG, you are insanely talented!

[@toddsimone7182]

That is amazing. You have some very nice equipment and mad skills.

[@Blue-X]

This build is legit crazy

[@vincentrocco7301]

Hi Been watching your videos for a while now. You are truly talented and amazing!!!! Vince

[@jaanusmooses]

I love this project. Only thing that grinds my gears is the fact that you deleted reverse. You of all people, genius of rc world. Why oh why??? But still, love your projects. Greetings from Estonia.

[@oscarzt1652]

disc brakes on a V4 rc car is unbelievably cool