LEGO Mindstorms Robot Inventor 51515 - Walking Humanoid - Beta Rex - Free Instructions!

[@Unbrickme]

All you need to build this robot for yourself is just ONE Mindstorms 51515 Robot Inventor kit! Nothing else! Instructions and programs are in this pinned comment and description of the video. Free building instructions & Programs: unbrickme.com/beta-rex

[@CreatorAcademyAustralia]

Awesome!

[@Unbrickme]

Creator Academy Australia thanks!

[@jamcamrailfanning]

yo thanks for the comment lol I like your channel and it made me happy to see you comment on my comment lol I don't even know why but it did lol.

[@boilingbrains]

Can I use your robot as a baseline for mine for a youtube video in french ? I will mention your video of course

[@Unbrickme]

As long as you give me full credit, with a link to this video, you can absolutely use my work

[@tomaszczerwonka]

Wow! I'm impressed!

[@armaganuyar984]

thanks

Thank you very much for the instructions and the code

[@seanmcne]

So cool!!! GREAT JOB!!!

[@TechnicBrickPower]

Hi Unbrickme. Fantastic job - very inspirational. I am tempted to get into mindstorms instead of just technic 😀

[@Unbrickme]

Thanks! You should definitely try mindstorms

[@raulmatencio6382]

Podrias aser un video como armarlo

[@cristian_code_cl]

Please, could you share the building instructions by google drive?

[@TurnaboutAkamia]

This is a neat build! I know it's mostly inspired by NXT 2.0 Alpha Rex, but I missed out on that kit; I mostly am reminded of the original NXT's Alpha Rex, from before our boy got an upgrade. I think someone made an EV3 robot based on the original Alpha Rex in one of those Mindstorms books that are out there on the market somewhere. I forget which book, and I don't know the robot's name. I love seeing humanoid walking robots like this and Alpha Rex, though. The ones that use wheels and/or caterpillars (Blast and EV3RSTORM, respectively) are neat, but I think bipedal walking bots are more impressive, even if they're generally harder to do.

[@Unbrickme]

Thank you very much! The bipedal humanoid from ev3 you’re referring to is called Lava Rex, created by the legendary Laurens Valk.

[@TurnaboutAkamia]

@@Unbrickme Ahhh, that's the one! First time I saw it on the book cover, I felt a rush of nostalgia. I still don't own a copy of the book yet, but when I do get it, I'm building Lava Rex so fast. However, I'm gonna need to take a crash course in programming with a text-based language since I installed ev3dev to my EV3 P-Brick and EV3's original programming environment no longer works on my computer. Heh.

[@nikosparaskakis2007]

Wow! This robot is awesome!I really think you should participate in the lego ideas competition for the 6th model!

[@Unbrickme]

Thank you! I’ll definitely participate

[@SandsGC]

OOH OHH AAH AHH

[@TommyCBricks]

ahhhh i get it now

[@Unbrickme]

Thank you very much! Will you be getting this set?

[@SandsGC]

@@Unbrickme OOH OHH AAH AHH

[@Unbrickme]

What do you mean?

[@SandsGC]

@@Unbrickme OOH OHH AAH AHH

[@clockiticlock]

nice!

[@tobiasbraun5441]

Thank you very much for the instructions and the program, @unbrickme! My 9 year old son was able to build the robot almost without help and he's absolutely loving it! It's his favorite model, a lot better than the original models included with the mindstorms set!

[@Unbrickme]

Oh thank you very much!!! I’m so happy that your son is having fun playing with my robot

[@arnaudandhoney]

Hello, is it still possible to get the instructions? thanks.

[@Unbrickme]

Yes just email me and I’ll reply with instructions and program! [e-mail]

[@manheer5825]

Should i get this or the volvo articulated hauler? 🤔

[@Unbrickme]

Depends on your needs. If you want a revolutionary technic set, get the 42114. If you want a lego robotics kit with endless playability, get the 51515

[@manheer5825]

ok

[@mednios]

Hello, Unbrickme! Looks like link to building instructions are broken. Could you relink instructions? Just bought 51515 set and eager to build and program this beautiful piece of yours. :) Thank you!

[@Unbrickme]

I'm so sorry about that, here's the working link: unbrickme.com/beta-rex

[@hugo_pdd]

Really good robot, you are a pretty good builder.

[@Unbrickme]

Thank you very much

[@stopmotionstuds8531]

If I had it I would definitely build it

[@Unbrickme]

Thanks!

[@UltimateLegoProductions123]

Its actually pretty astonishing creating this moc by your self. You should start a book about 51515!!

[@Unbrickme]

Great idea! I would definitely do that if I knew how to create high quality digital building instructions, instead of just pictures

[@thehappylife3162]

@@Unbrickme LDD ;)

[@legoengineeringfundamental261]

@@Unbrickme I loved your model and I am starting to create high-quality digital building instructions for you. I can also help you write a book. I am the author of the LEGO ENGINEERING FUNDAMENTALS ebook for iPad: books.apple.com/us/book/id1527216275 and the BASIC ELECTRONICS ebook: books.apple.com/us/book/id1490962388. Contact me at my email: [e-mail] to send you the instructions for your robot as soon as I finish it and a free copy of my books.

[@fuzzybrickstudios2315]

@@Unbrickme use stud.io you just build the model on the software then rearange the pieces in steps its so easy!

[@kyuza8992]

Hey amazing work! Unfortunately the Downloadlinks on ur website just let me download the html link to the same page. So can u please fix the download files?

[@Unbrickme]

Email me please to [e-mail] I will email you the instructions

[@realr-r2u]

I would love to build this but upon clicking the link it says error so I navigate to the page that works but when clicking any download button it asks to download the HTML file instead which does nothing, can you send the build instructions and program?

[@TheFourWindBadger]

Can you build the same stuff with the robot inventor as the old Ev3?

[@Unbrickme]

for the most part, yeah

[@superemeraldproductions]

Unbrickme, may you review the LEGO Creator Expert 10273 Fairground Collection Haunted House?

[@Unbrickme]

I probably won't sorry

[@mrmarkom]

Great job!

[@Unbrickme]

Thank you will you be building this robot?

[@mrmarkom]

@@Unbrickme probably, but we have just started with kit couple days ago. So far we only made Charlie..

[@Unbrickme]

Charlie is a great robot! I also recommend tricky and blast a lot! Happy building! Let me know if you build my robot sometime?

[@garetharnold3639]

Hi. I have never imported any external programs into the mindstorms app? is it easy to do. I have the app on windows and my android? Do I have to download a third party program when I download your program files or can I download them and then open in the mindstorms app?

[@Unbrickme]

You don’t need to use any external programs, you can just double click on the program file, and it will open in the mindstorms app

[@AustinCrabtree32]

That’s really cool man.good job

[@Unbrickme]

Thank you very much!

[@alexmoore5435]

You dezerve so many more subs. Your not a ginus like others but your relateable and really smart. I love your chanel. Exspesialy as a young technic builder.

[@Unbrickme]

Wow thanks I really appreciate it

[@bobuxcmdpt]

:0 that's ammmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmazing!! Great job on that!

[@Unbrickme]

Thank you very much

[@NishiNY]

Can you show us all ur sets please

[@Unbrickme]

I don’t have all of them built, but I do have a ton of reviews of my sets

[@NishiNY]

@@Unbrickme Ty brother, just do a room tour please

[@Unbrickme]

I already did :) i made it around the beginning of 2020

[@NishiNY]

@@Unbrickme ok I will watch that video, daily am watching ur videos, you are great brother keep it up 👍

[@Unbrickme]

Thank you so much I really appreciate it

[@therobin84techinc68]

Wow! The robot is super cool! The rc mode is great to play with it, plus the robot is teal and white.🤩 Good job !👍

[@Unbrickme]

Thank you very much

[@donaldmcbride772]

Hello Unbrickme. I have got to around page 282 of the build instructions for your beta rex robot. I thought I would connect the hub to a USB socket on my computer to try something with the motor for turning the robot's head. PROBLEM: the design does not allow the connection of a USB cable to the hub as it is blocked by the turntable gear for the head. How did you manage to program the robot, recharge the battery, debug etc when you cannot make a USB connection?

[@Unbrickme]

I temporarily take the head off, then I put it back on

[@donaldmcbride772]

@@Unbrickme It is not just a problem of the head. It is the black turntable gear which prevents insertion of the USB plug. Unless you have a special plug which is much less thick it is impossible to insert the plug. Does such a USB connector exist?

[@donaldmcbride772]

Hello Again . I may have sounded a little abrupt in my first comment. Certainly it is a brilliant design and I thank you for taking the time to reply. But, if you look at page 284 of your pdf file of instructions you can see clearly that the gear teeth of the turntable obstruct the UBS socket of the hub. I cannot insert the USB plug into the socket without the risk of destroying the hub socket. Is there a technique to pop the black toothed part of the turntable from the grey component on which it turns?

[@Unbrickme]

Donald McBride like, on the front of the head, you don’t have to take off the entire turn table, just take off the front beam and the front covering

[@donaldmcbride772]

@@Unbrickme Hello Again. I have not yet built and put on the head. So there is no front beam and no front covering at the moment. As you can see in your own image/photo on page 284 of the .pdf file, the teeth of the turntable are in front of the socket. It is impossible to insert the socket as the teeth foul on the plastic moulding round the usb socket. I have followed the instructions exactly and the construction is exactly as shown in your pdf. To insert the socket i would need to use force to thrust it in slightly at an angle which would certainly ruin it permanently.

[@Daniel-nh7xj]

So when is your next video coming? And what’s it going to be about?

[@Unbrickme]

Ghostbusters ecto 1 review Thursday

[@Daniel-nh7xj]

@@Unbrickme cool! How was your day by the way?

[@Unbrickme]

My day was pretty good! Yours?

[@Daniel-nh7xj]

@@Unbrickme it’s was good

[@Unbrickme]

Oh and I wanted to ask you what you think of the mandalorian so far?

[@impesimatteo]

Hi, I'm trying to open the python version in a word document but it isn't working. Can you help?

[@Unbrickme]

You have to use the LEGO mindstorms app

[@impesimatteo]

@@Unbrickme Alrighty Thanks! But do I open the lego mindstorms app, and then open the file?

[@Unbrickme]

@@impesimatteo yeah do “file -> open” in the mindstorms app

[@JonasPetri]

Beta Rex really seems very cool! When i get LEGO® Mindstorms® Robot Inventor 51515 i will absolutely build this robot. But for som reason the building instructions don't work. On Dropbox it shows "Error 404". Why does that happen?

[@Unbrickme]

hello, please try the instructions again. I updated the link.

[@Unbrickme]

mega.nz/file/RCZWgD7R#VQI0bKHb_80uQWJYB12lX7LwOYDVSG7SNowKP8IjwTk here you go! I also updated the pinned comment and description

[@JonasPetri]

@@Unbrickme Super cool robot anyhow! And i admire you for the instructions. I would not have the patience for doing instructions with real pictures!

[@Unbrickme]

I honestly dont know how to make digital instructions that the computer renders so I used real pictures. Thank you very much

[@JonasPetri]

@@Unbrickme Actually it's easy. There a few apps for designing LEGO models like LDD (LEGO DIGITAL DESIGNER) Ldraw and BrickLink Studio (or stud.io). I'm using Studio because it has a pretty good module for instructions. Nore Ldraw or LDD has a real module for it. But to my knowledge none of the apps i named has the Mindstorms Robot Designer (or Spike Prime) electronical parts, so until they add it i think it's better to do like you. For me that seems like much harder than to do digital instructions, at least with so big models. And i'm glad you diden't make VIDEO instructions, because i just hate instructions like that!

[@DJ_Badu]

what do I do if I can't open the instructions?

[@Unbrickme]

try downloading again

[@DJ_Badu]

@@Unbrickme I tried but still not working.

[@Unbrickme]

Are you on mobile or computer?

[@DJ_Badu]

@@Unbrickme Computer

[@DJ_Badu]

I mean laptop

[@Daniel-nh7xj]

Did you see the new technic McLaren? It’s on legos website.

[@Unbrickme]

Omg thanks for letting me know

[@Daniel-nh7xj]

@@Unbrickme. What do you think of it?

[@Daniel-nh7xj]

@@UnbrickmeI LOVE IT!!!! and I will get it on day 1 when it comes out.

[@Daniel-nh7xj]

@@Unbrickme plus it’s only $50.

[@Unbrickme]

@@Daniel-nh7xj Yeah it looks cool but I wish it has a 2-speed transmission gearbox

[@Daniel-nh7xj]

Looks really good. (Sorry I’m late to comment. My phone broke and finally got the I phone 11).

[@Unbrickme]

Congratulations on your new phone!!!

[@Daniel-nh7xj]

@@Unbrickme. Thanks 😊

[@generalgrievous6250]

I found some deals in internet. There are 8 chima spinner sets. One set costs 20 dollars. Would I buy it? (For investing)

[@Unbrickme]

Yeah man take the deal!

[@generalgrievous6250]

Unbrickme okay!

[@massimilianoforni8079]

Hi and congratulations for your Rex, we have found trubles to charge the robot cause of the gere you placed on the top that make difficolt to insert the charging plug. Wi decide to turn the hub to solve the problem. we did not finish building yet, do you think is a good idea?

[@Unbrickme]

You should build the robot as seen in the instructions. You can just temporarily take off the front beam when you wanna charge it

[@zzatihz]

Pretty impressive! I'm going to try and build this. I was successful in downloading the instructions and code. How do you load the program into the app? I did not see any load program option.

[@Unbrickme]

You double click one of the codes or you put the codes into the dpcuments folder, and then you click while looking in documents folder

[@zzatihz]

@@Unbrickme Got it. Thanks for the quick reply. I finally figured it out on my iPad. It's awkward (as many things are on the iPad). I saved the files to a OneDrive folder. In the OneDrive folder I had to open the app and allow the iPad to open it with another app (Mindstorms) and then it loaded in the Mindstorms app. Now I need to get building! Thanks again!

[@Unbrickme]

No problem! I also really appreciate that you’re building my robot! Thank you very much

[@zzatihz]

I finished the build. Your instructions were great! There were a few spots that were inconsistent but they were easily spotted in the subsequent steps. The robot works just as described! This is a great accomplishment! You should definitely submit it to LEGO for their current contest to develop a 6th robot for this set. I think I like the remote control code best. The robot moves very nicely although he tends to favor slightly moving to one side. I have calibrated each motor but it still happens. Also, the robot fell backwards when transitioning from a hardwood floor to a short carpet. It was actually funny to watch him fall and lose his head. LOL. Again, many thanks for making this available to the LEGO community!

[@Unbrickme]

Thank you very much! I did submit this into the contest for the 6th model, it’s currently under review for approval

[@GubstersGarage]

Beta Rex now has a worthy match up with Blast with this biped upgrade - kzbin.info/www/bejne/oHPccneMfbehibM

[@siokgan8435]

Hi Unbrickme, Forgive my nativity, how to I open lms file please. Thank you.

[@Unbrickme]

In the mindstorms app, go to file, open, and then open the lms file and then the program will load

[@Daniel-nh7xj]

Alright well. I have nothing to do, so how was your day?

[@Daniel-nh7xj]

Did you see that sariel posted the review dates for the technic 2021 sets?

[@Unbrickme]

I didn’t see that. Oh man I’m so excited for those sets. I can’t wait till they get officially unveiled by LEGO and I can’t wait to review most of them! I definitely wanna motorize the Ferrari too with control+, and I’ll use control+ rather than PF because in 2021 you won’t be able to buy the PF system in any capacity besides third party sellers

[@Daniel-nh7xj]

@@Unbrickme. Cool! And yeah I really want to see the Ferrari motorized. Will you share the rc code with the public. And will you review the control plus off road veichle?

[@Unbrickme]

Yes I’ll review that and I’ll of course share the code publicly

[@Daniel-nh7xj]

@@Unbrickme. Cool. Thanks

[@Daniel-nh7xj]

Yo

[@Daniel-nh7xj]

Are you ready for the lego coliseum?

[@Unbrickme]

Yeah I’m ready!!! Oh and what do you think of Apple silicon macs

[@Daniel-nh7xj]

@@Unbrickme i cant comment on that because I actually haven’t seen them yet.

[@Daniel-nh7xj]

@@Unbrickme do you like them?

[@Daniel-nh7xj]

@@Unbrickme not sure if your still there so i guess ill see you later.

[@Teaboi356]

This robot is really amazing and it show's you how much imagination people have, but it kinda bog's me that his left arm doesn't do anything but again, this was made with only 1 pack and it is pretty dope

[@Unbrickme]

Thank you so much!!! if I didn't restrain myself to using only the parts from the one 51515 kit, I wouldve made it twice as big and I wouldve made his left arm do something!

[@bigc7099]

Notification Squad!

[@Unbrickme]

Thanks!

[@siokgan8435]

naivety

[@eoghanmurphy3884]

Its crap

[@Unbrickme]

no its not

[@Unbrickme]

wait why is it bad? did you have issues while building yours or something?

[@henribg1]

the grapes, when high and unreacheble are always bad on taste ;)