Raptor II: MK1 - Build

[@thehardwareguy]

Watch Raptor II in action: kzbin.info/www/bejne/mYqzfpegZdWWjqM

[@UrbanCommando63]

This is absolutely amazing. From designing to coding to assembling, everything has been single-handedly, hand-built. So many different areas of knowledge are required for something as "simple" as an RC-car with extra options. I hope I'm also able to get to this point one day. Imagine a fully scaled-up version of this with 4-wheel independent steering!

[@rcrnd1027]

Dang!! This is freaking awesome. Huge props! You are exceeding the boundaries of what most consider the limit to 3D printing in RC. I love it!

[@multimechanica1460]

That independent steering is seriously cool, great work on the whole car, excited to see where this project goes!

[@LawrenceTimme]

The problem is its going to be almost impossible to make it go straight.

[@thehardwareguy]

@@LawrenceTimme nothing is impossible, just requires a well thought out solution.

[@DominicClifton]

@thehardwareguy are you aware you can get servos with telemetry feedback? Would be interesting to log the telemetry data from the steering servos. e.g. FrSky XAct? I'm sure there's some interesting stuff that can be done there, including automatic end-point calibration.

[@kevintieman3616]

@@thehardwareguy You might end up with something similar as a flight controller for a drone. That uses a PID loop to keep the craft in a certain angle until you change any of the axis. Is the board equipped with sensors like a gyro, magnetometer/digital compass and accelerometer? I think you will need a lot of feedback from the car to make it do what you have in mind. In any case I'm really looking forward to what you come up with, this sure has a lot of potential :-D.

[@DocWolph]

@@LawrenceTimme Automatic car stability.

[@astone_ua]

I've done a lot of experiments trying to build my own RC car from scratch, and all I can say is that I'm really impressed by your design. I bet the gears will go first :)

[@Jrod_FPV]

usually they do! but for this one, the motors don't have the weight of the whole vehicle passing through 1 gear as a normal RC car would. So that should be easier on the gears. Now, depending on gear material and gear mesh, that's another story!

[@rcmindset2876]

The most interesting RC project I’ve seen this year. I watch RC videos everyday and just happened on your channel I’m just on the edge of my seat to see your progress. Thanks for thinking outside the box!

[@thehardwareguy]

Thank you man, appreciate it!

[@cczeroX]

The coincidence of stumbling upon your gears tutorial just to find out you actually also have videos on the exact same kind of project I was looking up printing gears for - all the way down to the hall sensors for torque vectoring the four motors. :D Surely gonna take a lot inspiration from allt he learnings you are sharing in your videos here. :)

[@thehardwareguy]

Thanks for the support as always! Please share this video as I am trying to reach a wider audience! Send it to a friend👊🏻

[@lio1234234]

I think I have rewatched this video about 5 times now to try to help make it more noticed in the algorithm! 😃

[@thehardwareguy]

Thanks man, much appreciated👊🏻

[@lio1234234]

@@thehardwareguy Nah it’s cool dude. It’s nice to have someone that puts all their effort into a project and then opens it up for everyone!!!

[@cadguy9879]

Beautifully done Excited to see raptor running :)

[@thehardwareguy]

Thank you👊🏻 it’ll be blasting around soon enough!

[@meimnd]

That's really cool. The placement of the motors is really smart. Just one suggestion if you haven't think about it yet, now that you control everything through the MCU and coding it yourself, you can go with 4 wheel steering. On the hardware side you only need to have the same part that you have in front of the car, in the back.

[@jinanprojects]

Can't wait to see this thing in action

[@creedhaymond1939]

Have you considered doing 4 wheel steering? It seems like it would be easy to just print a second front end and bolt it on. This would allow you to tow in all the wheels and program something like a cyclone spin or something using a separate button on your controller. You could even have it be a separate rear end that you could just bolt on at a moment’s notice depending on what you’re using your car for at the moment.

[@quadracycle4000]

This is incredible! It's so good to see a personal project finally coming together

[@PatriotPaulUSA]

Really awesome job!

[@ingridsrcadventures6812]

fantastic 👍👍 great work👌 can’t wait to see the first run 🚀

[@AhmetAkifKaya]

This project is brilliant

[@baxrok2.]

Very impressive. Congratulations!

[@2lio007]

Amazing great work dude can’t wait to see it running

[@avejst]

Impressive design 👍 Looking forward to see you progress. Thanks for sharing 👍😊

[@thehardwareguy]

Thank you, much appreciated👊🏻

[@jameslmorehead]

One huge suggestion for added strength and reliability. Where alignment is critical, or you have motion, switch over to shoulder bolts. Think of it like a dowel pin that can apply a clamping force. I can see this being very useful to strengthen the joints where the parts of the body come together. Also, this would be very handy in just about every suspension joint, And on the suspension joints, consider adding a hole for injecting lubrication. Just a short M2 grub screw hole would be great. The screw would keep debris out of the hole during normal operation. When you inject lubrication into the hole, it would force out the old lubrication along with any contaminates picked up while in use. For the non-rotational parts of the suspension, consider a gel type silicon lubricant. It would stay in place and take up any slop to help reduce wear to the plastic. I've actually done this to my highly modded WLToys A959.

[@Joshuah2012]

Idk your current progress on this but I’d suggest if I may using two of your front axle designs for four wheel steering. You could use the control card to toggle when you want to use it (I’d just have it on a switch, 2ws vs 4ws) and that can also have a lot of fun things to do.

[@Juiceboxmakes]

Its a greaaattt dayy for a motor car race.

[@matns1382]

Very intresting project! The one thing I would change is that rear kick up (the angle of lower arms compared to chassis) is a bit to much on the front, and a lot to much on the rear. You can look at some pro rc cars and compare the suspentsion angles.

[@GENcELL2014]

Just discovered your channel and this build. I like what you're doing 👍 especially the fact it's controlled by a stm32.

[@brsrc759]

That's really dang cool!! I can't help but notice the thing you call a "micro controller" is actually quite large compared to a regular receiver.

[@thehardwareguy]

the MCU board is a development kit so it has a lot of unnecessary hardware such as USB OTG, audio jacks, codec chips etc. When I create a custom PCB for this car the board will be tiny!

[@brsrc759]

@@thehardwareguy Right on that makes sense. Thanks for the reply

[@DocWolph]

A lot of people are going on about the independent steering set-up. I can't wait to see that in action. But I am more curious about you Four Wheel Independent Drive and what you will try to do with that. Traction/Torque steering would be an option, not unlike say a Nissan GT-R35. But again I can't wait to see this in action. Also, Subscribed.

[@dimebag2486]

Ouaa. Perfect ! I don t know world Rc car. But I want do your car for me and my childrens . It s perfect. Happy new year from France.!

[@petarnikolov162]

Great work, one suggestion from me,is to change the mounting of the lipo. Because if for example the lipo/esc catches fire, you won't be able to to unscrew those screws fast enough, velcro straps would be beter imo

[@thehardwareguy]

Excellent point, much appreciated👍

[@stefanmuller1855]

Nice car. I am excited how it will perform

[@rogueFactor]

wow. this is a fantastic work in progress. kudos. and new sub!

[@JohnLauerGplus]

Nice work on this.

[@Shreyam_io]

Thumbnail itself says everything 😇

[@hybricks9390]

Great project, thanks for sharing. It inspired me to do a similar thing, hopefully able to show something soon. Out of interest, in stead of making your own hall-sensors to feed back speed, would there be a way to receive a comparable signal from the ESC? After all, the ESC switch phases based on the speed (also sensor-less motors).

[@OliKingwell]

What's your approach to motor control going to be for this project? STM32 setup is similar to a 1/10th tourer built by a guy called HammerFET on reddit. I believe that was put together in Simulink/matlab which is a pretty restrictive approach for anyone not working commercially. would be nice to see a more open foundation to software differentials and power distribution - Can imagine it would gain some traction and dev interest as an open source project.

[@spencerklein4329]

Love the car, i am tho worried about the hub setup and how you have the bearing push in from the inside. when the car turns the only thing stopping the axel from pushing in is the pin and when it does push in it will hit the hub and ware it down. if you make a bearing that slides in from the outside of the hub also the pin will push onto the inside race of the bearing and stop it from pushing the axel into the plastic hub.

[@iandrake4683]

So is the basic idea of the programming going to be something like this oversimplification: To turn left X: Turn left wheel X Turn right wheel X * 115% Power left wheel Y Power right wheel Y * 125% So that your power per side obviously differs, but also the steering angle per side also differs?

[@schuttrostig5729]

Great design on the axles. Design wise i would go for a Double T frame inserting battery and controllers from the side and put the wire channel on top, to get battery and controlers lower. but for now it looks solid. Whats the weight of the car with batteries and controlers installed?

[@gus8378]

First time I see a video with zero dislikes

[@stefanmuller1855]

Very cool project. I am working on some parts to make rc fit to bricks(Lego). So your video is pretty interesting to me

[@codyhansen698]

Can I ask where you get all of your fasteners, nuts, bolts, screws, swivel joints ect?

[@ParsMaker]

nice work

[@MonsterPartsRc]

Interesting.., but why do you have the rear shocks/shock towers leaning back instead of upright?... the front, I understand, but the rear?...

[@addyshimov]

What about front tires and turning? The path of the inside tyre is different than the outside.

[@thehardwareguy]

Yes, this is an electronic steering differential. It was one of the advantages of having a servo controlling each wheel individually. Check out the Raptor 2 build I did. Much better than Raptor v1

[@0xB8xor0xFF]

Not sure if those shock towers will last. Force from the suspension will probably break them off at the layers.

[@schuttrostig5729]

My guess ist the hole that holds the shocks will break, would be better to sandwitch the shocks between something being hold on both sides. Something like move the tower in line with the shocks and "slot" it where the shocks go.

[@mustafasajjad2]

Hey @thehardwareguy, this is a very impressive project. Just a question regarding it, did you follow some sort of a vehicle design guideline when designing this car?

[@techultra8045]

keep up the good work man thanks

[@AshokkumarJakkula]

Hey @thehardwareguy, could you please provide the details for the drive shaft.

[@lucasparenteau6085]

wow good job

[@wabash9000]

I'm sure you have explained it before, but I have never seen an rc have that much rear caster. Normally it is like -2 degrees not 20 degrees.

[@lucasparenteau6085]

hi i was wanting to design and build something simmalar, do you have a parts list of the axles and wishbones and things like that?

[@jagadhishvegi98]

That's so cool❤️

[@petertoenz]

The independent motors for every wheel opens a lot of possibillities. But i think it would work way better with belts and aluminium pulleys!

[@justinmallaiz4549]

I’d be interested to see how well (or poorly) the throttle works just running the motors directly off the same signal (no coding pcm controller)

[@Koko-sama1]

Any clue where you can purchase similar size eye bolts?

[@gedr7664]

what are the ball joints in the wheels? or are they u-joints? amazing work!

[@bobhillier921]

Need to consider FPV from the drone world. An upgrade could be force sensors on each piston to measure weight at each corner of the car and an active feedback to dynamically adjust centre of gravity. (Ok.... that’s enhancement 2,968 but still cool to consider.)

[@swipecar106]

can you post a list of materials, im new and im doing this for a school project. However im using hydrogen to power it. I have no idea half of the things you are putting on that.

[@thehardwareguy]

The project is open source, all that information is available on my website: www.thehardwareguy.co.uk

[@swipecar106]

@ where on the page do I find that information?

[@afonsoportugal3656]

The gears will be exposed to mud, sand and dirty?

[@bharatbhandari2953]

Awesome build 🙌. Mostly the part I like about raptor is most of it's is 3D printed.

[@MrKoruyo]

How does the AWD work - this is in software/controller? Since there is no differential because the wheels are not connected? sry if this question is stupid - im new to rc cars/understanding how different styles of cars work

[@stephanrossouw7932]

I love this, want to build it with my son, great work. Could you please do a Bill of Materials if we want to build along? I mean the metal stuff that you need to get it done. I was looking on traxxas site just to look for the coil overs and it was greek to me.

[@nicethelyrical1529]

Just ran across this today and WOW! This is the type of project/build that really interests me! So many questions... may I ask a few?

[@thehardwareguy]

Thank you, much appreciated! Yes go for it!

[@nicethelyrical1529]

@@thehardwareguy Cool! My Mind went 😃🥳🤯 ...How Long did it take to do the dimensions and print the parts?

[@tonypotter5589]

You should get one single piece that runs down the sides to securly hold the chassis together

[@xaytana]

Bit of a dumb question, and I'm not sure if this has been answered previously, but does that controller handle differential speed/torque for the motors, since you don't have any mechanical differentials?

[@RBAERO]

Very nice serie and build! Congratulations. What materials you use in those parts?

[@mitofun6967]

design is awesome!

[@lukaspfitscher8737]

how it is going? waiting for the next update :) build something similar with a motor build in the weel and servo motors as supension combined with a gyrosensor ;)

[@felixwe9]

Will you implement a Torque Vectoring System?

[@alikaa3196]

Greate work. Congratulation

[@siop5709]

What motor did you use?

[@roopert8533]

How much would the electronics cost in total?

[@dieFPVler]

I have a RC-car where I´m thinking about to make the rear axle steerable and thought about the same way of using one servo per wheel, since that way it becomes easy to change the toe-in dynamicly and thereby the driving-behaviour. But there is a drawback. With the conventional setup, the brace between the wheels equals out the momentum which get´s created at the turn-knuckles. Unfortunately I can´t attach a picture here to make it clearer. Imagine to look on the axle from above. When the wheels create acceleration this force is off-centered from the turn-knuckle´s axis, which means it creates a momentum. In forward dircetion this would result is both wheels would turn inside. In the linking brace between the wheels the momentums of the two wheels are eaqualing out. With a "one-servo-per-wheel" approach the servo has to work activly against this momentum all the time.

[@FollowNdFeel]

This project is awesome..... But... and yes here it comes.... Why are the bolts so long?!

[@taole500]

hay quá anh ơi...👌👌👌👌

[@SamuPlay01]

Bro can you please 🥺, make a video showing the electronic from this car. I got everything ready but I have not idea how to start connecting and else not the electric ⚡️ things from it. Help.

[@kayboku7281]

thats awesome!

[@kayboku7281]

i dont know about that small to large drive gear, but apart from that, ITS ROCKING!

[@lucaspohlmann7162]

Does anyone know a Tutorial on how to design (Fusion360) those gears on the motor.

[@thehardwareguy]

This is a popular question! I’ve made a tutorial which’ll be uploaded tomorrow! Enjoy👍🏻

[@lucaspohlmann7162]

Thank you my Friend.👍

[@ryanwakebradtelle8682]

how much filament would it take to make this

[@thehardwareguy]

2-3kg all in

[@adesouza9352]

Muito bacana ,ele deve ter ficado bem potente👏👏👏

[@lordtairon1530]

Hello, I am really interested in this project. I am already signed in in your website. When do you upload the files for this model of the Raptor?

[@mychalpstanton9188]

Would love to buy one from u wow

[@chrisdepalma6844]

gears should use teflon grease. Other guy on youtube did 3 cars, said important

[@thehardwareguy]

WD40 silicone lubricant does the trick for me👍

[@tiradalsmawi4516]

Very cool job ❤️❤️❤️... I love robots and automatic control..What would you recommend me to learn ?! Now I only learned Arduino and I want to develop myself further

[@addyshimov]

Any running video?

[@thehardwareguy]

Yes there will be!

[@MartinHapl]

Hi, well done! I'm working on a similar project, just with 1/10 scale constraints. Would you be interested to discuss the software side of this?

[@josephcandler8959]

Since when can you categorize parts of a video

[@thehardwareguy]

Recent update!

[@yepthatshimheded1891]

Why isn't there a hardware list?

[@lio1234234]

This really is amazing! I wish it were possible to make one of these with my 4 castle 4600kvs and mamba Xs I have lying around in some of my cars but I think they would be too large! ;(

[@thehardwareguy]

Thanks Elliot! 4600kVs would struggle for torque, worth sticking below 500kV but they can be expensive... these Leopard Hobby LC4250’s are £40 each

[@lio1234234]

@@thehardwareguy Are they the ones you used in the build? If so, that’s a bargain, it’s just a shame they aren’t inboard and therefore aren’t waterproof. Also it’s a common misconception about high Kv rating motors having low torque. The longer the motor you can generally get more torque out of, and my castle ones especially as they use a 4 pole magnet arrangement. But I see your point fully and I’m really enjoying watching the design, being a design engineering student myself 😉

[@lio1234234]

@@thehardwareguy Loving the build and might do it in the future!!! For now I’ll be doing a version of the Tarmo4 if you’ve heard of it? Thanks for the reply by the way, I really look up to you in a big way, in terms of design engineering, so thank you!!! 😁

[@Athiril]

Damn this is great

[@ruzzackovich4067]

I am Just love to watch the process. if i try made some of that.. it will be a greatest Joke 🤣

[@KurzickDagger]

What are those motor drivers?

[@thehardwareguy]

Racestar ESC 120A

[@KurzickDagger]

@@thehardwareguy thank you!

[@antmo3353]

Should give tutorial on how to build this and parts

[@noithugian494]

What software did you use for the simulation?

[@thehardwareguy]

Autodesk Fusion 360

[@atdakore]

imagine it as a rock crawler!

[@twinturbostang]

Gota put FPV gear on it!!

[@myusernamewasinvalid]

I love seeing the mix of printed and traditionally manufactured parts. I felt the OpenRC project made way too many sacrifices for the sake of being as printed as possible to the point of not being practical.

[@thehardwareguy]

I completely agree, and I learned this lesson first hand also. Just because you can print something doesn’t necessarily mean you should!

[@martin3288]

@@thehardwareguy have you already tested it? Do the gears hold up?

[@amiddled]

Sure, but part of that’s to keep the cost low I suppose.

[@ybodoN]

Looking at the design and the parts, four-wheel steering was expected...

[@grumpyjohntxredneckrc6346]

W@@W, Incredible...

[@lio1234234]

For whatever reason my notifications said the video was released only 4 hours ago, there must have been a change made or something, either that or I’m going insane????