I Built a Fully Functional LEGO ROBOT DOG!

Building a testing a Lego robot dog! (Inspired by Spot form ‪@BostonDynamics‬)
This is one of the first ever robot dogs, made 100% out of LEGO!
This was not an easy project, making a 4 leg quadruped is insanely hard, especially if its made out of Lego. Getting everything to balance took me tons of designing, testing, and patience. It took more than 3 months of work to get here, but I am really happy with the end result.
Support this project on Lego Ideas!
ideas.lego.com/s/p:ada73aaa10...
Features:
-Powered by the LEGO Ev3 robotics system
-Legs powered by 2 L motors
-Steering powered by 1 M motor
-Stable walking
-Reliable steering
-Top speed of 1.8km/h
-Able to be controlled via remote
-Sensor enables 180° obstacle avoidance
-Obstacle avoidance software included
-Able to dance
-Programable software
-Average runtime of 60 minutes
The idea of making something like this and the structure of this video was inspired by many other famous KZbinrs including Stuff Made Here, Mark Rober, and Michael Reeves
Special thanks to ‪@Brick_Science‬ for helping me with the video
Video Chapters:
0:00 Intro
0:33 Designing and Building
3:06 Testing
5:56 Programming
6:55 Showcase/Demo
8:16 Outro
Music from #InAudio: inaudio.org/
Infraction- Epic
Technology, coding, robotics, Lego technic, Making Lego Car CLIMB Obstacles, James Bruton, self aiming bow, Creating a BIG Vortex with Lego Motors, steel axle? lego motors/lego robot inventor, 4 leg walker, Moving hoop won't let you miss, A million paint spots, 3 colors and 1 mind hack, Glitter Bomb 1.0 vs Porch Pirates, I made a working LEGO RUBIKS CUBE!! (part 2)

[@ibuildstuff]

Please *subscribe* if you enjoyed! This is pretty new and small channel, so support would be greatly appreciated! *Video Chapters:* 0:00 Intro 0:33 Designing and Building 3:06 Testing 5:56 Programing 6:55 Showcase/Demo 8:16 Outro

[@AndroidFerret]

This need WAAAAY more attention

[@AndroidFerret]

Sooo awesome

[@ibuildstuff]

@@AndroidFerret thank you!

[@momonunu]

Is there a way you could upload/do a build guide?

[@ibuildstuff]

@@momonunu sadly, I’m probably not going to make one because not a lot of people would actually have the parts to build it

[@puzzLEGO]

This is seriously impressive stuff! Not only was the editing pretty much on par with a youtuber 100x your size, but the machine itself was super cool! I enjoyed the cinematography with the choices of camera angles and the cinematic at the end was epic! I've subbed to see what else you can come up with on this channel

[@ibuildstuff]

Thank you so much! Really appreciate it!

[@Kowboy991]

I liked the use of a lego pointer

[@ibuildstuff]

@@Kowboy991 ahah, thanks

[@megagamingteen]

Hi @PuzzLEGO

[@kjamison5951]

Boston Dynamics - if you’re reading this, hire this guy. Get him through school and fund him through college. Don’t miss out. Some other company will step in…

[@legolas7470]

Just the handpointer alone would be a like worth ^^

[@nikistoyanov4858]

What a nice video. The editing is awesome and the hand pointer is hilarious :)

[@ibuildstuff]

haha, thx

[@GermanAviation]

This deserves way more attention, well done!

[@ibuildstuff]

Thanks!

[@andyrose2723]

This is amazing mate!! Please please please do a tutorial, I know there are thousands of fellow builders out there who’d love to make this. Love that you used Ev3 as well! I made a very basic walking dog years ago but it’s nothing compared to this! Hoping you’ll share a guide or maybe some more detailed photos, the leg mechanics are killer!

[@UnidudeNine]

Nice work! I know the coding is frustrating at first, but it will help you tremendously on your future projects. I think you should review the math formulas behind Inverse Kinematics and then you'll be set to work on some much more advance robotics!

[@ibuildstuff]

Thank you! And yes, I’ll try learning to do the code for more complex projects in the future!

[@ibuildstuff]

Support this project on Lego ideas ideas.lego.com/s/p:ada73aaa103a439ea7fbe9cac939665e ...and check out some of my other videos too :)

[@sloanlance]

I supported your proposal AND sent a couple of tweets about it! Good luck!

[@happyvalley5284]

please sell instructions 🥹🥹🥹

[@joshiemah]

DAYUM this is genius

[@ibuildstuff]

Yooo another verified youtuber, thank you!

[@stickguy9109]

Mom can we have Boston dynamics at home? - No we have Boston dynamics at home Boston dynamics at home:

[@ericinventor]

Dude this is amazing! So compact and elegant design. We appreciate you showing your failures throughout the process, it gives us all more motivation to power through!

[@ibuildstuff]

Thank you so much!

[@sqiddster]

Excellent work! I know from experience how difficult it can be to make a sturdy walker with LEGO especially with such a high centre of gravity, well done

[@ibuildstuff]

Ty!

[@Landiiii]

This guy seriously needs more credit! What a nice video.

[@RollercoasterJosh]

Boston Dynamics is typing...

[@techstudio4556]

This might be my favourite Lego build

[@Ima_Tron]

"We made a robot called Spot! It costs Seventy Four THOUSAND Dollars!" *This guy looks at spot, pulls out box of LEGO parts. One month later:* "I did it for maybe 500 bucks?"

[@UnitSe7en]

They're not even comparable. What kind of dreamland do you live in?

[@doodocina]

@@UnitSe7en legoland i think

[@Varue]

@@UnitSe7en ok it's a fucking joke lol grow up and see some sunshine for once lmao

[@WillFaustCuber]

@@UnitSe7en Are you underestimating Mr. Lego himself??? Cannot believe this...

[@codingvio7383]

@@UnitSe7en Then make one better than his.

[@jesterc.6763]

Okay! Now This Is F***ng COOL! This is the exact demonstration of "When there's a will there's a way." .

[@Bricks-n-stuff]

This is amazing

[@jonathanhilt2324]

This is awesome. Great job😃

[@elumixor]

so relatable and adorable!

[@terrycornall9488]

Brilliant, well done!

[@ibuildstuff]

Thank you!

[@johnyapkw]

Great stuff. Will try something on my own after looking at your video.

[@martinschissler9208]

How cool is that. Very impressive. Hope you will make building instructions available at some point.

[@ShpanMan]

Jesus, when I was a kid I built a 5 inch Lego "spaceship", this guy is competing with Boston Dynamics.

[@arstanbk_abdv]

Just amazing wrok!!!! I can't imagine how hard it was.

[@l.clevelandmajor9931]

My Lego Technic Robot Dog was built over 20 years ago, using only what was available in Lego at that time. I did not have any controlling software. Rather I built it to operate by means of gear ratios and carefully timed movement of each moving appendage was controlled only by the way I designed it. Mine had a bobbing head and wagging tail, which helped to keep it on its feet as it walked. It was built as an experiment of torque increasing methods. The entire build worked on just one Lego Technic Motor. I was able to raise the torque to such a strength that it eventually stomped itself to death; coming apart, due to inadequate connection strength between the parts. Some of that was alleviated by using larger parts in place of multiple smaller parts. That said, the connections were never completely immune to the strength of the torque I built into it. It was a very interesting build. I did not have directional changes built in, so it only walked in a relatively straight path. Mine only fell over in my first couple of builds, but after that it only failed when it stomped itself apart. You have access to much better Lego parts than I did, so I would love to see you build more advanced versions of this. Thanks for posting this video.

[@ibuildstuff]

Oh wow, sounds really cool! Thanks for sharing!

[@dublin18]

Showing my 4 year old son this. He loves it! I told him how one should keep trying and learning from failures until success, good example from the video!

[@ObliviousPasserby]

This is seriously impressive. Amazing job!

[@ibuildstuff]

Ty!

[@chatsmignons5466]

WOW AMAZING !!!

[@Fllcasts]

This is incredible! Great job! Thanks for sharing it!

[@ibuildstuff]

Thank you!

[@jvlsgames4446]

0:00 sendo bem sincero, nunca vi um robô nesse estilo andar tão bem, desprezando o da Boston Dynamic, acho que o deles andam melhor. Parabéns

[@sauravgupte6734]

This is brilliant ngl! I tried making a robot dog a while back and I know how hard it is to build one

[@ibuildstuff]

Haha, ty

[@jaspervalino8732]

Me: I want Boston Dynamics’ Spot Mom: We have Boston Dynamics’ Spot right here

[@burgermanjoe]

Stud is AWESOME! Great job building it! You have inspired me to mod my lego sets! THANK YOU!

[@ibuildstuff]

Np!

[@xszym]

Love it!

[@MadamLava094]

"I havent checked on what modern mindstorms looks like, lets see" "oh he's getting to the programming, I wonder what the fun drag and drop language looks like nowaday-" *python* oh yeah, modern day

[@ibuildstuff]

*modern day*

[@jrhwood_]

Sensational! Is there a parts or schematics available?

[@TinyMaths]

OMG! I burst out laughing when I saw the 'lego' hand pointer... 🤣 Great sense of humour added to an already very interesting video

[@mruiz8607]

years ago i worked on my version bostons atlas. two legs took a long time to get 12dof and some mindsensors hardware to get it to walk up and down stairs on its own. But it was rather slow do to weight and redundant gear train for all load joints. I really like your spot, well done. Its been years since i have touched what i called X. sits there still new design too found a way to get hip rotation for the leg. so it can step out on a turn no shuffle or over a object and turn. The hours it took about uncountable..

[@alex_rivas_art]

Yes I will say in the future that I was here when the channel just have 5 videos. AMAZING JOB. Edit: I check and there was just 4 videos! Just 4! A lot of channels struggle years to reach this cinematic yet funny look.

[@Coopycaat]

Seriously impressive.

[@ibuildstuff]

Ty!

[@penmanovicxxxxxx2694]

Well done. Really impressive.

[@ibuildstuff]

Ty!

[@crisfervil]

Wow! AMAZING!!! Thanks for sharing!

[@ibuildstuff]

Haha, glad you enjoyed!

[@sloanlance]

Why all the indentation on lines 17-19 of main.py at 06:06? Remember, indentation is meaningful to Python, so adding it where unnecessary will cause problems later. If you don't have a good editor to warn you about these problems as you're writing, you'll not know of them until you run the program. If VSCode isn't helping you with this, I recommend IntelliJ IDEA.

[@tcf70tyrannosapiensbonsai]

Great job!

[@astroman310]

nice creativity, subbed :)

[@ibuildstuff]

:)

[@CharbelLEGOcreation]

This is extremely cool. Very nice work and excellent video !

[@ibuildstuff]

Thanks!

[@2S74]

Very impressive !!! Lego engineering and video making, you are on top. Thank you for sharing this excellent moment. 😄

[@ChildDeveloper]

Hey, thanks for sharing this awesome build! My son loves EV3 and your robot dog. Did you ever put up a pdf or any other format of instructions for replicating it? Thank you!!!

[@adicahya]

This is very impressive ... maybe guys from Boston dynamic started with Lego based prototype too .... :)

[@ibuildstuff]

Oh wow, never thought of that!

[@user-tf3mx2nh7l]

its insane. i think ,that this robo-dog so cool!! its like a Boston Dynamics robots . you done a big big work ! usually i do not watch the video on to the end. but this video i watch until the end.

[@ibuildstuff]

Haha, thx, glad you enjoyed!

[@maxbuckley9762]

The only think i can see lacking in this build is width of the legs They are too close together and gives it an unbalanced CG (keep in mind boston added a high power gyro in their design but you could offset this by using hobbygrade electronics (if possible to integrate with lego electronics) you maybe able to add a gyro unit (something akin to AFRC gyro unit) ❤️ Massive respect tho man these lego builds are crazy good

[@sebaster3124]

Wow great work! This inspires me so much and might start making robots with ev3 too

[@ibuildstuff]

Good luck!

[@TransformiumLego]

Ahhh my!! Just 1 word man : Masterpiece 🔥

[@ibuildstuff]

ty!

[@roddlez]

Nice work! From the thumbnail, I thought this was the Boston Dynamics robot! For turning, have you considered using a motor or servo that makes the body hinge near the center of mass around the vertical axis? Even a slight bend would probably get it turning nicely. Or, if you actuate the hips around the spinal axis, you might even be able to better balance the gait to solve the crashing problem. Just some ideas for future projects...

[@ibuildstuff]

Haha, thank you! I might try improving the steering in the future, thx for the suggestions

[@irkedoff]

Looking forward to your next project. Great work.

[@PanLukasz]

WoW! Great JOB! Greating from Poland!

[@miladirani4313]

Great job , it has very hard work

[@rajshinde4319]

Amazing work 😯😯😯

[@ibuildstuff]

Ty!

[@danielvoelkel4837]

Awesome work!

[@ibuildstuff]

Thank you!

[@aidan4472]

This is where I watch your channel intently, waiting for you to become the Hacksmith’s new rival.

[@LegoBuildChannel]

This channel is blowing up!

[@yuvallegomotorized]

Wow man, that realy cool, i like the clip too. Not easy to make a head now. Swinging tail will be out of this world 😎

[@montage1926]

And just like that, I'm all caught up on all your videos. It's interesting see and how your filming style changed

[@CoDKnoedel]

Nice work, and I really feel you when it comes to the steering (have been trying to build a suspended mobile crane); trying to incorporate ackerman-steering always gets so flimsy. I shall now solve this like you did: who cares, it doesnt really matter!

[@carcrusherlegoscars3757]

I wanna see Boston dynamics build a Lego one now to see how good it is compared to yours because this is where you are good At stuff

[@batman3698]

boston dynamics are sweating

[@ashmitdewan]

steering mechanism is epic

[@deoksoosong1555]

Very good. Can you upload how to assemble the leg? Especially its flexible ankle of knee and body motor connection.

[@jaytea2140]

Good job bro!

[@etherealnene]

as a bostonian, i approve of this.

[@michanowacki9152]

Wow.Good work

[@ibuildstuff]

Ty!

[@kevinguerrero5424]

next gen lego bot nice thx for the idea

[@ashmitdewan]

yo this is sick

[@user-qf7go6hs1p]

you built a robot that would have cost Boston Dynamics millions out of cheap Lego and made it work, that's seriously impressive

[@d1cn]

Great project! I think You can sell building instructions on rebrickable.

[@ZebraandDonkey]

Really nice work.

[@ibuildstuff]

Ty!

[@DM-xd5jt]

This robot is simply amazing! you will make it far 💪 Well done, 👍🏻 I hope you will let us have the building instructions sometime.

[@Kyle-xk2rb]

Woah this is underrated

[@Tirael2012]

Очень круто! Молодец.

[@Sw3d3nRu135]

Underrated channel!

[@tamerkutuk3498]

its amzing.

[@jonahthrane812]

I stumbled upon your video randomly, and I enjoyed it, well done.

[@ibuildstuff]

Thank you! Glad you liked it!

[@Car-rim2010]

If only this was a real lego set. Great build!

[@SHD69]

this is just epico!

[@ibuildstuff]

Thx!

[@JoeMamaIsUnderYou]

Yo that's pretty cool

[@user-lk5ll7dw9l]

WOW! I am impressed with the work done! Could you share the instructions?

[@mr_rfrm7169]

WELL DONE, MY GUY! Very very cool

[@ibuildstuff]

Thank you!

[@CarbonGlassMan]

This is cool. I won my 5th grade science fair in the 1980s by making robot legs where I used a big dual shaft DC motor, then cut wooden circles and beams to make the legs to convert the circular motion into a linear motion going into a human-like walking motion. It didn't walk, but the legs hung off the edge of a table and did the walking motion. This works very similar to the way my project worked.

[@ibuildstuff]

Thats pretty cool thank you for sharing!

[@masculuslactobacillus]

I feel so bad for those broken lego pieces

[@susmitroy2398]

Grt work, quality content

[@ibuildstuff]

thank you!

[@Neymoiiii]

Robot dog for everyone is real

[@richbuilds_com]

Bravo!

[@dog_on_chair]

Can you please release a building tutorial? Trying to build this for a school project and havent found any that work as required except this one. This would be super helpful thank you.

[@user-qq3hw7fc4q]

Why don’t you add some rubber at the foot because that rubber are not smooth and I think it will help your dog walk more like a dog

[@Yukki64_]

Sick new product from Boston Dynamics. Ngl.

[@jiajieei]

this is crazy 🤯🤯🤯🤯

[@m8r4isgb69]

This is insane keep up the great work then i bet you will blow up👍

[@sircogwheel]

This is the best lego robot I have ever seen! But can you make a video about the legs? I want to build something like that. That robot is epic.