Lego Big Dog5 Gets Hips, Goes Faster
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- Опубликовано: 16 сен 2024
- Lego Boston Dynamics Big Dog 5 is going faster and climbing higher with a bendy back. Still just one L- motor. Still steerable. The hips sway and the terrain gives way. The fastest Lego quadruped ever? If not BD6 is in the works.
Lego Big Dog 4: • Lego Boston Dynamics B...
Lego Big Dog Playlist: • Lego Big Dog Quadruped...
Wow, this is impressive work. You just use a lever and simple attachment for the legs to provide motion, but the leg design is so well build that it makes the difference. Very glad to discover this channel !
It looks so cute and nimble.
Great stuff. Truly an evolution) its crazy how complex the movement is considering you use only a couple of motors. That was always fascinating for me with lego build, wham less is more. Instead of adding tons of motttora, like in average rasbery pi, arduino project, complexity is added via clockwork essentially
Correction - 1 motor. Thanks!
So advanced , my good you wery smart
Great work
that thing is terrifying and cool at the same time...
how the hell does this have so few views?!
Idk, should have more honestly, Great content and huge brain!
Just wow, I have seen many videos about LEGO concepts but they are not even close to you brilliant ones!
I could not have done it without learning and motivation from other people.
Just found your channel and great job
When I make little robots my favorite thing to do is order a wifi fpv camera for a drone and put it in it, all you need is your phone and you can see where your going. You just hook up 3.5v to the red and black wire and your set.
Watching a few of your videos, this stuff is so awesome..
Super nice progress, can't wait for the next iteration!
Awesome!
holy crap dude! you've made so much progress! :D
hi Max! sinister, eerie, creepy, total excellence! great development. Love it. And love the limited amount of motors used, that's impressive. 👍🌅
You deserve more subs 🙌
Thanks, I never thought I would have this many.
You should try it on difrent terain like a concrete side walk or maybe even dirt or grass
Big Dog 6
1:07 It's trying to escape!
Feisty little critter.
tied to hold
: LE ME GO FATHER !
He’s angy
Very interesting, keep going.
I can't wait to get to work on the Lego lizard1 and BD6.
Hi MaxBrix, I'm a big fan of your creations and ideas. Can you please make a video on the lizard prototype, I'd love to see what parts are needed and how to build it.
thanks, I forgot about that guy. I'm a bit obsessed with the motorcycle.
amazing
MaxBrix, please tell me how many motors you use in your big dogs. I think I’ve seen you say somewhere that you use 1 motor. How do you steer only using one motor?
Wow
what how a small dog go so fast?
Das ist cool
so good! I'm guessing that the lizard's sideways bending backbone holds a lot of promise
Lizards solved all the quadruped problems in the simplest ways. Balance - not a concern. Foot planting -Lizard feet don't need to be round (I have seen you use curved feet?). The feet don't come off the ground from rocking motions as much. Usually to get a longer footpath you need a longer leg. Longer LEGO legs are hard to get torque to the end of. Bending the body gives you a better lever. Lizard walking is one step above fish walking. Good for a machine with no brain.
@@MaxBrix I think it's a better model for mechanical walkers than a mammal's vertically flexing backbone - unless designing for leaping/galloping? Feet with curved bottoms are useful when the footspeed isn't constant, and the feet are allowed to passively rotate to compensate. We tried this on our giant TrotBot where the heavy weight didn't like foot skidding. Theo also takes advantage of this, and passively rotating feet help both our Klann and Strandbeest LEGO walkers to walk more smoothly on surfaces that resist foot skidding.
@@diywalkers7898 I knew you would relate.
@@MaxBrix Dude, I've seen a lot of walker videos, and nothing has been as exciting as watching you tinker!
@@diywalkers7898 Thanks, that is awesome!
Do you ever think you will remake something like this using all lego parts like all power functions, mindstorms, or power up
Reasons I use a hobby radio.
1. Weight. The traditional batteries and radios are heavy
2. Size. They are to big to fit.
3. Control. Tactile and proportional is better
4. Range. I have a 30KPH motorcycle that will get out of range too fast. (hobby radio range - 400 M) not really an issue on this model.
The battery used in this model cost about $8.
If I need to program something I use SBrick or EV3.
The plan is to use Arduino on Big dog 8.
Amazing work! Any chance to have some build instructions or just more detailed views to reproduce? 😍
Big dog 4 would be easier to replicate. The legs are shown in some shots. The body is much simpler. You will need feet. You can see some detailed views of the feet in BD3. Also springs(amazon, variety box). There is an inner leg strut that might be tricky. I will post a photo on my community page. You will need to run this off of a small esc and radio receiver with a small (i used 350 mah) lipo. It is a bit tricky. Lots of fine tuning may be required!
Big Dog 4 ruclips.net/video/WJWXrLmDwq4/видео.html
i have a question, so i was building something similar with ev3, and i manged to get the dog to walk and steer with a steering system similar to the ones on a car. however, when the dog walks backwards, the right legs sweap forward more then the left ones, causing to model to turn, just like on your dog. because of this, the model is more likely to tip over in reverse. both of the sides are even, so idk why the model turns in reverse. You have explination or any ideas to pervent this? thanks
It could be to many things. leg timing, torque twisting, weight distribution. Hopefully something on that list is useful. With all that ev3 weight it will have to be very even. One of the reasons I got a camera that could do 240 fps is so I could see things happen that are too fast.
@@MaxBrix thanks! The timing and weight distribution seem to be even, maybe I’ll try using a slow motion camera to find the problem
Amazing, genius! any chance to have a detailed photo of BD5 on your FB page?
It no longer exists I will try to have more documentation with Big Dog 6
@@MaxBrix Thanks a lot for replying. My kids and I are learning a lot from your channel. Thank you for taking the time to make the videos, I really understand how time consuming is that. We will be looking forward to see some photos of BD6 (amazing model) Regards from Utah!
So your using 1 L motor for leg drive and a small servo for ‘steering’ body tilt
No. There is only one motor. No servo. Just one L-Motor. The body and legs are moved by one motor. The turning happens because of the leg dynamics.
Oh wait, did you mean on the b model with a head? That did have a small servo. The steering with that is sketchy. I was just playing around that aspect of the model needs a ton of work.
@@MaxBrix I meant in regards to robot turning, so the turning and side hopping is controlled by one motor? thats insane, how does the mechanism fully work?
@@Zack_Axel I don't think I can write a better explanation than I gave in the video at 00:32.
@@Zack_Axel I have a bunch of one motor models that steer including Raptor 2 with only 2 legs.