One year of building a robot dog

See what the mjbots quad A1 robot has been up to for the last year.
Join the mjbots discord! / discord
See links to the details of each topic at: jpieper.com/2020/11/09/mjbots...
00:00 Intro
00:38 moteus
02:38 qdd100
03:35 Accessories
04:57 Demos
06:00 quad A1 - hardware
07:47 quad A1 - software
10:58 Summary
11:48 Outro
#moteus #mjbots #quada1
Soundtrack: mjbots 2020 theme (please forgive me!)

[@sentdex]

That much progress in a year is truly staggering. Are you working alone on this?

[@awesjosh]

For now yeah, just me!

[@sketchbookrakesh3948]

@@awesjosh that's sooper 💥

[@franksiam2975]

@@awesjosh you are very good. i am impressed.

[@GuyBurdick]

Phenomenal.

[@Cookie-kf3xn]

Well done! Can't wait to follow it's progress. Subscribed!

[@imignap]

KZbin's suggestion algorithm needs fixed... You easily deserve 100k subs, and G.O.A.T. status for going above and beyond. Thank you for sharing all levels of this project!

[@awesjosh]

Thanks! Glad you're enjoying the videos!

[@beak90sfx]

This is so impressive!! Each of these software and hardware components are so well done.

[@TheNadOby]

As far as I understood all the hardware and software done by one man band. Incredible! You for sure should share the source of additional 50 hours a day your achievement needed. Hats of.

[@saadtiwana]

Simply amazing!

[@tannerbuschman1]

dont know why I was watching other guys on youtube make robots, haha, your legit. Super glad youtube recommended this channel

[@pappaflammyboi5799]

🤯 Wow! Impressive work ethic. This is an amazing amount of effort and productivity. I salute you 🫡

[@PhG1961]

Unbelievable ! Awesome, excellent video ! I'm really impressed ! Can't wait to see more !

[@awesjosh]

Thanks!

[@JulianMakes]

Just awesome!

[@constructiverealities]

Just amazing!

[@bostoncleek8955]

my man! you are a robotics legend

[@ibuildstuff]

Damn, this is pretty amazing, i tried making something similar out of lego, but yours is way better

[@bimgus3907]

I saw your video it was pretty cool

[@Robertoilo]

None of them is better than the other. They are just different. I wouldn't be able to create anything even like any of them.

[@rudisoft]

Great job Josh!

Excellent job man. Congrats!

[@awesjosh]

Thanks!

[@afganno3385]

you blow my mind sir. you are like god of the robots....

[@hamidsk2573]

you did all this by yourself !!! you are awsome Josh

[@gnkarn00]

Spectacular development , congrats !!!

[@awesjosh]

Thanks!

[@correiaivan]

I believe if you change the walking pattern to trottle it could achieve greater speeds! However i can't stress enough how impressive is this work. Lovin it!

[@CarbonGlassMan]

This is unbelievable. Amazing work.

[@awesjosh]

Thanks!

[@nishantsharma4465]

I don't think their is any significant difference between josh(you) mit & boston dynamics when it comes to quad robot agree ? Simply outstanding work !

[@practicepioneer]

You sir are an impressive individual

[@MrJimenez.]

Amazing and very impressive :)

[@ekiki9141]

Amazing work 😉

[@FB-vi4ep]

Super impressive!

[@christopheswiderski2026]

Very nice video thank you :D

[@Larock-wu1uu]

That's just amazing! Do you actually have another day job or are you fully committed to building this robot? The amount of work that you get done is astonishing!

[@softtarbiyah]

Wonderful

[@Phantom_MC26]

that's amazing

[@Christiaan_van_de_Berg]

Really nice!

[@sirobaka]

Amazing!!!

[@nunu4692]

That bot is sprint walking😂 insane proyect love it😁

[@mohitjoc25]

Really great

[@djplays2157]

gotta love the background music

[@romandruckt4752]

I would love to be so intelligent as you! My respect man.

[@azizrizki1664]

excellent

[@PaulGouldRobotics]

Excellent work

[@awesjosh]

Thanks!

[@Tamingshih]

Thank you so much for sharing such wonderful developing experience. It is really a great job. How come I didn't find it for the last two years?

[@user-od4sc6nm6j]

Amazing work.

[@user-od4sc6nm6j]

Want to learn how to make robots

[@qorje]

Impressive!

[@adriangaleron3293]

Oh man! You are an absolute genious! Why you have so few subs

[@DMike92.]

Looks its moving even better than SPOT!

[@rustiverse]

sick

[@lamsiglo2170]

perfect..

[@matthewsharp1178]

this feels revolutionary, can't believe I only just now stumbled upon this.

[@awesjosh]

Thanks!

[@FabriceCHERRIER]

amazing!

[@awesjosh]

Thanks!

[@baltanne]

Build the robot in half, I mean assemble two sections of the same product to make a whole robot, so a camera on each side, one in front and one in back, two legs and the camera in front is part of the robot and add the other same part of the robot together, so it can go forward or backward reverse the direction, if one part breaks just to change half of the robot...

[@marekward6202]

Great gait and design. Like a Staffordshire terrier or Pit Bull dog :)

[@Tymon0000]

Nice

[@Wheatley101]

Impressive

[@mcmadness110]

This robot reminds me alot of MIT cheetah mini and looks better in terms of walking than the Unitree GO1. The GO1 constantly walks in place.

[@DanielGutierrez-xj6vz]

Eres un buen rampalito !

[@antonvoy1969]

Amazing.. wait till more techies see this.. will go viral im sure.. that whats possible by you.. and not a big corporation with 40 people, and million$ on one job!!! well done

[@themechbuilder6171]

oh wow

[@anga6275]

the dog was funny. you should make a video of the robot interacting with dogs in the park

[@mr.fredricklawngtawnghedav5094]

Wow..Thats neat!

[@awesjosh]

Thanks!

[@chainsawmanadventures1877]

NICE DOG KEEP WORKING I LOVE THE DOG WE ARE ALSO WORKING ON OUER OWN ROBOT DOG

[@e1woqf]

A dog that doesn't poo everywhere and neither bites nor barks. I love it!

[@stocky9218]

Very cool, I think its impressive that there is no dislikes

[@backacheache]

I could imagine a phone docked on top of this as the controller with it's processor, cameras, internet connection, GPS, compass etc it could truly be independent

[@theunroze]

It's cool!

[@awesjosh]

Thanks!

[@tituscassiusseverus6303]

So cool, is there any scope for the moteus mjbots controller being controlled by step direction commands like a stepper motor. I'm assuming it has positional feedback like the Odrive controllers, I note the cam function, my aim is to build high speed 3d printer/laser etcher. Thanks

[@awesjosh]

A step direction input is something that could be implemented, most easily using the ABS port, however such a feature does not exist now.

[@dannyg8741]

This is amazing!! I have been interested in robots for a long time and so want to build one! I'm familiar with some programming but nothing in robotics. Is this something a beginner can assemble?

[@awesjosh]

Thanks! The quad A1 isn't really a beginner friendly robot. You might search around for something like Spot Micro, which is both a lot cheaper and easier to work with.

[@ulugbekabdurahmonov5239]

Wow

[@evilkoolade]

I wish I could add this to my wheel chair (or wheel-less chair as it would become)

[@theexperimenter5813]

Amazing. I. Always. Wanted. To. Understand. How. A. Robot. Like. This. Works

[@facelessdrone]

Why do you have periods after every word?

[@theexperimenter5813]

@@facelessdrone my phone does that sometime

[@theexperimenter5813]

My. Phone. Adds. A. Period. For. Some. Reason

[@BearMeat4Dinner]

The robot reminds me of a Datsun!!!

[@waynefilkins8394]

What learning resources do you recommend for learning how to plan projects like this like what parts to use and how to hook it all together and set up the software and everything?

[@awesjosh]

KZbin? Blogs? I've been watching and reading as much as I can for a long time! My blog has links to some things I've learned in the journey: jpieper.com

[@franciscoelan9930]

Eu vou tentar fazer!

[@twitte0king]

Any plans for a running gate ? Like a greyhound? Symmetrical push style?

[@awesjosh]

Follow along and find out!

[@PTheOTHERaccountlmaoM]

the bulldog of quadrepeds

[@protovision7040]

Its like a wittle version of spot :3c

[@duckyvr2260]

I feel like a stupid idiot right now after watching this sad I love you KZbin channel

[@sully9836]

Wouldnt it be great if you can also add small retractable wheels under the paws some how so it can drive or walk I always always wanted one of these robots it's always been my wish but due to my disability it will be far to hard for me to make and my dad is battling stage 4 lung cancer so I can't focus on anything so i always just watch these videos they amazing

[@user-ie8ls3rk9f]

ハードのクオリティめっちゃ高い 凄い

[@awesjosh]

Thanks!

[@lemmetellyousomething679]

I want to see it mimicking the stunt of peeing on trees and flowers

[@felixtik9151]

Perfekt ! eliminate that machine gun. 🤭

[@Mau365PP]

how did you get all these engineering skills? I want to be able to build stuff like you, I want to learn. But how?

[@awesjosh]

Thanks! I can't say I have any shortcuts. I went to engineering school as an undergrad/grad, have spent a lot of time learning at jobs and on my own, and still feel like I am barely scratching the surface!

[@hankb7725]

any plan to simulate the running gate where the front and back legs are in sync, the way all 4 legged animals actually run?

[@awesjosh]

I would like to at some point, yes!

[@KSATica]

What’s that is standing on rubber balls ?

[@carmichaelmoritz8662]

👍👌🤟

[@user-gp9kb7tv3u]

احسنت 🇰🇼well done

[@stevemaintenance9570]

hi josh, im a learner, can you guide me the start of this, what kind of simulation solution did you use, and may I know what did you use to balance the robot dog

[@awesjosh]

The simulation is a custom one built on DART. It is open source: github.com/mjbots/quad/tree/main/simulator

[@ludviglindhe1262]

just found this project so if its already been said im sorry, but does it have the ability to get up it has fliped itself?

[@awesjosh]

Nope, although it probably wouldn't be that hard to implement.

[@syedshafee9017]

Question : Why are you using BLDC only ? Why not use servo instead

[@awesjosh]

These are servos! A servo is just a motor that has position feedback. If you were asking why hobby servos were not used, they typically use brushed motors and have port torque transparency. They cannot easily be used for dynamic motions like running and jumping.

[@FLORIDIANMILLIONAIRE]

Good job filming it in the MIT yard

[@awesjosh]

But did you see the other two major college campuses...? :)

[@rahadyanmuhammad271]

Hi. I am mechanical engineering student I love designing but i didnt have any skill in programming Would you like to recommend me any website/course to program robot from basic? I really hope that the course is focus on project based not a general mathematical equation Do I have to use arduino or something? Thank you so much

[@awesjosh]

Sadly, I don't have good beginning software recommendations aside from google searching. :(

[@belspace]

I m p r e s s i v e !

[@user-hk1md8ju7z]

Hey I've always wanted to learn about robotics and how to make things like that. Can you tell me every subject I need to learn to make building robotics like this easy?

[@awesjosh]

Everything? Seriously though, robotics like this is a mix of mechanical, electrical, and software skills.

[@user-hk1md8ju7z]

@@awesjosh hm. So a text book on mechanical engineering, electrical engineering and software engineering? Got it

[@fansondecktheyloveme]

What materials are you using to build it ?

[@awesjosh]

The robot itself is mostly 3D printed PETG!

[@Bennygk-yw2fx]

I want one

[@Baburao2011]

Is it on the market? Can we use it to teach students? Very professional!

[@awesjosh]

We have sold some in the past, but it is not currently for sale. The components you would need to built it are available at mjbots.com, but assembly is still a DIY no-doc affair. If you just want an inexpensive working machine for education, Unitree has models available.

[@Rotoboxing]

sir, I'm still in high school, I'm very interested about computers, especially programming and robotics iot and many things, what did you learn before that you have such great knowledge in robotics? did all of your knowledge you get from college? Thanks you

[@awesjosh]

Slow and steady! (college, work, fun, "all of the above")

[@mattanimation]

Why do I have the feeling you made the music for this video too? ;p

[@awesjosh]

Heh, guess you didn't read the soundtrack credits in the youtube description. ;)

[@mattanimation]

@@awesjosh hahahah, guess not!

[@awesjosh]

Hmmm, who else do you think would make something entitled, "mjbots 2020 theme"... ? ;)

[@angelheart3011]

Boshton dynamits took 14 years to build it. 😊

[@TomerDadon]

Hi, amazing work. How can I get access to the 3d models of the dog if I want to build something like that?

[@awesjosh]

Thanks! All the models are in the git repository at github.com/mjbots/quad along with the source code.

[@TomerDadon]

@@awesjosh i saw..but do you have the assembly...is it possible to purchase a full robot?

[@awesjosh]

There is a link to a F360 assembly of the whole robot in the top level README. We have sold assembled machines before, but are not currently doing so.

[@TomerDadon]

@@awesjosh possible to purchase the whole assembly?

[@awesjosh]

We have in the past and may again the future, but are not currently selling complete systems.

[@BOBLAF88]

It would be a perfect emotional support pet with a random bark and poop module.🤔🐕🤖

[@lakshay1665]

Hello sir, can you guide me how should I start to make Robo Dog as I'm beginners into this but I have mechanical engineering ...

[@awesjosh]

You might do some searches for things like SpotMicroAI, which is a bit more beginner friendly than something like this.

[@nickst2797]

Amazing! Does the robot use ROS?

[@awesjosh]

Nope, but it is open source! github.com/mjbots/quad

[@nickst2797]

@@awesjosh Wait, all the data gathering tools that you showed in this video are written by yours? I thought it was ROS rViz.

[@awesjosh]

Yep, all custom, but also all open source. Surprisingly it isn't that large a percentage of the effort. For instance, tplot2 is here: github.com/mjbots/quad/blob/main/utils/tplot2.cc

[@nickst2797]

@@awesjosh Much respect for everything! I wish you all the best!

[@Athens1992]

it the stl files also open source?

[@awesjosh]

The .3mf files are: github.com/mjbots/quad/tree/main/hw (as is the F360 model linked at github.com/mjbots/quad)