Yeah, we are size limited with LEGO and the other bricks. Though you could try the half sized bricks from other produces, but idk if they make technick pieces that small as wwll
Haha you're more right than you know! To show myself building it on camera I had to dismantle the whole machine before filming to rebuild it step by step. Definitely wouldn't want to have to do that again just to replace a single piece!
I'm a mechanical engineer and product designer, and your problem solving and ingenuity on this actually made me get a little misty eyed! Beautiful work. I also have to say that this speaks incredibly well to the precision tolerances that Lego holds. With stack ups this long, it's frankly amazing that this is even possible, let alone working pretty flawlessly. Bravo to them as well as you!
Imagine combining this with some nxt sensors so that whenever the figure gets to close to a border it automaticly switches, the perfect slipry pinguin showcase diorama
That's a great idea! I've used the NXT ultrasonic sensors in a previous video, and unfortunately they're not great at detecting small objects, they're much better around large flat surfaces, but it's definitely something I should look into!
You could probably use light detectors as they are relatively reliable (as long as you calibrate them to the environment), stick a light on every corner and wait for the reading to drop@@BananaGearStudios
@@BananaGearStudios Doesn't NXT support detecting light? You could create light-curtain style setup where the item blocking the light is interpreted as the item being close the edge? You might be able to do full light curtain with multiple bounces if you used real mirrors in addition to lego blocks but something like light white led in a pipe-like structure to prevent light from wrong LED hitting another sensor + light detecting sensor should allow one straight line detection.
Disney recently showcased this exact concept for humans to walk on. Some dude has been working on it for years and this guy just makes it with some legos LMAO
@@DigitalWolverine "Recently" Quite a few years old by now innit. The showcase that technology in one of their techshows in the park, sadly they have a patent on it so nobody will ever use it.
This was super interesting! As a Space Engineers player, I feel inspired to use this tilting disk principle in a future factory for moving cargo containers and vehicle chassis around.
It's kinda insane to me how that Disney omnidirectional threadmill was revealed earlier this year, and we ALREADY have a working, small scale lego version of it.
Thank you, I do use RUclips's in-built watermark in the bottom right corner, but I didn't really want to clutter up the screen with another watermark in the video itself as well.
Haha, I never claimed that I came up with the idea though, so should be fine. Also this isn't the first video I've made on this idea and everything's been fine so far.
Yep, the design is similar though here the discs tilt in all directions whereas they're fixed on the Disney version. I mentioned that I first saw this idea done by them in my first video on this, where I made the larger treadmill version I showed at the start.
@BananaGearStudios i just checked the mkbhd video on the holotile and they're not fixed. They also tilt. Maybe a note in the description should point out that this idea came from there. Incredible implementation though!
Almost. It doesn't have the speed and directional sensors like Disney's, which I'd argue are the most important part to making it not only functional, but practical. I do realize that this is just Lego, so practicality is out the window already. Still really cool though, and way beyond my engineering skills!
Here's a naughty thing you could do: Lego doesn't make a pin hole 8 tooth gear, but you can! Just get a drill bit of the exact correct size, and drill out the axel holes of some 8 tooth gears! I may or may not have already done this on some other gears....
I am proud to say that as a Master Builder, that I had the same idea/method to solving the issue at the beginning of the video with the gears and net! I’m glad you elaborated on the process!
Very cool, great job; what might make it even more visually impressive is changing the direction controls to move the central portion and gears underneath, and fixing the top platform in one location. That way when you change the direction of the top treadmill, its always in a fixed location rather than shifting around. Great job though!
That's a nice idea! Of course the whole mechanism under the net is pretty heavy, and so more force would be needed to move it around with the joystick, but you're right that it would definitely look smoother when the treadmill changes direction.
@@BananaGearStudios One solution to this might be adding additional linkages above the gear system and only moving a midsection of each axle, thereby "bending" the top end in one direction without changing its position. Each axle would look like this from bottom up: Straight axle with gear system - linkage - angled axle (freely moving) - linkage - straight axle (fixed upright in a grid which is shifted in its entirety in various directions) - linkage - angled axle with disk at the top and held in place by the net. Technically this type of linkage would move the top platform up and down slightly when switching the drive directions from one extreme to the opposite side (even more than now), but if the tilting angles of the disks are kept to a minimum, it shouldn't be too bad.
The whole thing is just insane, but somehow, the thing that impressed me the most was the multi-directional net-housing w/ the joystick. Like how do you even think of something like that?? Brilliant
I don't comment often on RUclips, for most videos - even the really good ones, I just click "like” then leave. But this...this Sir, is a master piece. The work, the way you deliver, the way you explain your thoughts...You can't see me right now but I literally paused the video and clapped multiple times during the video. Awesome stuff Banana gear studios. LOVE your work!!!!!
Amazing design, I love how you walked us through the issues you had and the process you used to solve them! One humble idea: it seems like the net is a little loose as-is. Do you think you could make your own sort of net-frame using a lot of those Lego strings? You could tension the strings more and prevent some looseness of the surface, as well as allowing you to make a larger frame, depending on the length used. You could even make a second frame below the existing one that moves a proportionally lower amount, so you could have a second string supporting the tilting axels.
Thanks! And that's a great idea - I'm sure I could definitely use rows of strings instead of the net, and that way I could tension them properly and make the grid any size I want - sounds like it could be a huge improvement!
4:00 it would be a much simpler system. If you were able to continue on this route, if you did the two separate layers, the first layer you could start the way you had, the second layer could be very similar, all you would need to do is on the second layer, put a gear on every single shaft, but on the ones that are rotating the opposite way drill the inner spline of the gear, so it is able to rotate in a different direction than the shaft, but then it would not be a legal Lego build, it would be awesome if Lego made gears without an inner spine and just a round hole.
You could theoretically make this layering system work by instead of trying to do the entire grid on one layer. Do a row per layer that would give you the space needed for bigger or more complex gear systems although The system will be taller. To save on height, you can use a v formation cutting the necessary height down by half
Could do this with 16 tooth gears as they have the transmission component versions with smooth center and then use 2x2 round bricks because they have an axle center and a matching 2x2 smooth plate that could cap. It would be a much larger treadmill tho
Great design and build. As always - there is a plethora of things to try to perfect. Only one to mention - friction may be reduced when using rubber bands if even number of bands is used for each axel, where a pair of bands pull the axel on the exactly opposite direction with the same force, therefore reducing the friction of axel with it’s socket.
That is so cool! I especially love how you used the joystick and linkage mechanism. I wonder if you could use sensors and motors to created an automated bouncing DVD logo...
That's not by accident... Those plates are holding the net down, and the net is thick enough that it means the plates can't be pushed down all the way. It's the same for all the plates on that frame, but in that shot that's the only one that's visible.
4:30 - This 'bar instead of axle' idea might actually work, if you use the red 8 tooth gears, designed to slide on axles. They don't engage the bars, and normally slip to one side, but as they're surrounded by other gears, they should stay in place :) The gears that should actuate the bars don't have to do it directly, these bars sit quite tightly in axle connectors.
It looks like part of why the Lego rubber bands had so much friction is bc the pulleys were only supported on one side and were quite high up. There's some flex and the band pulls the axles together, perhaps causing them to rub over each other in opposite direction
This was a super cool build to watch and it’s nice that you showed us your thought process And how you got to the final design, I look forward to your next build!
I've watched the whole video and I have a few notes/questions. 1) Did you try leaving half the discs undriven, ie. idlers? You show how a single plane of gears can't drive all the discs in the same direction, but do you actually need to drive them all? With the light weight of the items you demonstrate with I think it is unlikely to work, but it would be an easy thing to test/demonstrate. 2) Why not drive the two gear planes with their own motors? They may not move at exactly the same speed, but it may be close enough for the small surface area. 3) You already pass the shafts of the lower gear plane through the upper gear plane so they can drive their discs. You can also extend some of the upper gear plane shafts through the lower gear plane and use belts, chains, or gear trains to connect them to some of the lower gear plane shafts. Did you try this? 4) Friction is why belts are not used in parallel. They rely on friction to work at all and yet they are held back by it. To reduce the friction is to reduce their power. I'm glad you demonstrated the friction issue and how bad it really was. 5) Your design uses a lot of parts. This is the opposite of over-engineering. Engineering is fundamentally about reducing the cost of doing something. As a rule, using lots of parts is a sign something is being overlooked. Sometimes you really need all those parts, but almost always you don't. Overall, I'm impressed. This was a really neat use of Lego, and the presentation of the design process and the demo was clean and concise. Keep up the good work!
@@R4d6 Ah, but they both need the full grid of gears, cause those don't connect diagonally, so the axles from the bottom plane need to pass through gears in the top plane and now you've essentially turned them into one plane and it'll lock up when you try to drive both.
@@R4d6 So how does that allow all the axles from the bottom layer to pass through the top layer to reach the plates at the top? (without connecting with the gears that must be in the top layer's empty spaces to power it)
This is LITERALLY the same design Disney came up with to create an Omni directional treadmill for VR, MKBHD did a video on it where he went in and tried it out!
Yeah, that was the inspiration for this video, though this version works slightly differently as the discs can tilt in all directions whereas they're at a fixed angle on the Disney version. And I explained in my first video on this that it's based on that design.
I'm so glad you did the 90° detail, I was so worried you would have made such a genius design and left the most important part (argumentable) left out a good design is good when you don't even think about it.
That is a really cool and ingenious design! On a further thought, i could make out two possible improvements: 1) Instead of moving around the net/frame for steering it might be even better to move around the driving mechanism and keep the net/frame in a fixed position. This would avoid superimposing the movement of the net/frame onto the moving platforms. 2) At 11:30 two 12-tooth double-bevel gears can be connected diagonally when offsetting them axially by half a stud (i.e. offset by a half bushing). I think the gears should run reasonably smooth that way.
Thanks! And I like those ideas - moving the driving mechanism instead of the net would definitely give a smoother look when changing direction on the treadmill, though it would add some complexity. I had a quick try with the offset double-bevel gears like you said, and you're right that there's a lot less friction! Still slightly more than Lego gears have when meshing normally I'd say, but I'm sure they would've worked well!
Man, now I want to see someone make a non-Lego, metal version of this (the first variant, with the two overlapping grids) Edit: Apparently, Disney has one. Check it out; it's neat.
An imagineer at Disney build a whole floor that does something similar. I never looked up how it worked though you might find it interesting ruclips.net/video/68YMEmaF0rs/видео.htmlsi=KsOxAxktC_1J8XKq
Have you also tried to not make the wheels smaller, but the contacting object bigger instead? Like something the size of a planet? 😉 You basically just have to turn it upside down and mount it into an object you want to move. What I want to say is that this may actually be useful, not as a conveyor, but as a drive system for vehicles/objects that can move on a level surface with very little clearance to the floor. The whole construction just has to be sturdy enough to support the weight of the "vehicle"
@@UserOfTheName its funnier and makes more sense to me when its ahh, its already become a meme instead of its direct (colloquial) grammatical meaning yeah i'm a nerd lmao
Very impressive! This idea is better than any solution I've seen before! There are many inventions in this world that are not blocked by technological development, but by the lack of a flash of inspiration. I believe that the ideas you share must make an outstanding contribution to this field!
Thank you! Yeah, that would definitely make the movement look smoother, though it would mean I'd probably need to make the whole mechanism under the net move from side to side instead.
This is Disney's next level tech. Thanks for showing it done so reasonably. Big hopes for the future. Sorry you can't capitalize though. But maybe I'm wrong. Still, big like and a comment, so you're a winner anyways.
Once you've separated the the axles out into odd and even sets, with only two of each nine needing power, you can't zigzag chain between them to drive them? Maybe I'm not thinking about it clearly (and I don't have any chain handy to try).
Hmm, I think the two axles of each chunk might be too close together for me to fit individual sprockets and chains around each one, but maybe it could work.
it might be destructive, but you could drill a hole into the small gears for them to freely spin on the lego axles to make the first idea work. also you couldve probably just powered them in a checker pattern with a simple grid of small gears, but have every other gear freely spinning. they will help distribute the weight of the object above, filling out the gaps between the powered tiles.
Thank you for including a part (since I know you went through countless options) of the problem solving process in the video, for me at least that's the most interesting part of these videos. Not to undersell the final design, of course.
This is certainly a very cool omnidirectional treadmill The engineering behind the drive system is excellent, but I think there’s a solution to making a drive system that’s a a total of two studs tall. If you make the lower layer powered by having 8 tooth gears on all axels going horizontally on every other row, then having a two long axel with an 8 tooth on both spaces on the outside of the grid, that couples with an idler that’s on top of a spacer, so that it only meshes with one of the 8 tooth on the axel, and the rest of the remaining axels. Each row can be coupled together with a set of idlers outside the grid
This is really cool. I've seen the holo table in person that Disney made. Obviously it's a similar premise. The main difference is that it doesn't actually tilt, they are slanted pieces that rotate independently from the rotation of the treadmill part. But this is super cool
4:27 you were so close to solving the problem and instead made it way more complicated than it needed to be. All you had to do was pair the "idle" axles to the spinning axles with the transparent rubber bands. As each band would be working only on 2 axles, friction would not be an issue. Rubber bands could be placed at different heights to stop them from touching other bands. But I think that would be the whole project tbh. If you ever visit this idea again, please try this method and let us know how it goes 😄
Look.. I’m not tryna be that guy.. but I’m gonna be that guy. Don’t comment before you watched the whole video man, because he tried this method and friction was a large problem with this. And also, as a 12 yr old with and interest in mechanical engineering… how the HELL would the belt only being on two axles lessen the friction? If anything, you would have less friction from connecting four because of less friction contact.
Amazing!
Or is it?
(It is)
He is real..... or is he?????
Still waiting for sauce as merch,it would taste like knowledge
Or will it?🤨(Insert vsauce music)
Michael Vsauce?!
hey vsauce
As a factory maintenance worker, this video sent chills up my spine thinking about replacing any of those parts if this was used in a production line.
Imagine disassembling the building size machine, just to get into one gear in the middle of the whole structure
goodie, You have unlocked the maintenance future memory.
@@creo_one Replacing any of those belts 💀
Yeah, we are size limited with LEGO and the other bricks.
Though you could try the half sized bricks from other produces, but idk if they make technick pieces that small as wwll
Haha you're more right than you know! To show myself building it on camera I had to dismantle the whole machine before filming to rebuild it step by step. Definitely wouldn't want to have to do that again just to replace a single piece!
I'm a mechanical engineer and product designer, and your problem solving and ingenuity on this actually made me get a little misty eyed! Beautiful work. I also have to say that this speaks incredibly well to the precision tolerances that Lego holds. With stack ups this long, it's frankly amazing that this is even possible, let alone working pretty flawlessly. Bravo to them as well as you!
What's happening to my replies
Idk
The grid, he couldn’t use it because the gears didn’t come in non-axle just a hole way, I present a solution. POWERDRILL AND BRUSH
So satisfying to watch too! 👀
Could you drive them with flexible plastic tubing?
This is so freaking cool! It’s a replica of the treadmill Disney made for VR stuff.
HoloTile, yes
I wondered how the Disney threatmill worked but now it is clear. And managing to build this from Lego 😂🎉
@@leoatreides1 Being buildable by Legos is at least a good sign that an affordable home version of the HoloTile could be made
If Disney don't let me buy one soon this guy is gonna show me how to build one with Lego lol
Thanks! Glad you like it!
Imagine combining this with some nxt sensors so that whenever the figure gets to close to a border it automaticly switches, the perfect slipry pinguin showcase diorama
That's a great idea! I've used the NXT ultrasonic sensors in a previous video, and unfortunately they're not great at detecting small objects, they're much better around large flat surfaces, but it's definitely something I should look into!
You could probably use light detectors as they are relatively reliable (as long as you calibrate them to the environment), stick a light on every corner and wait for the reading to drop@@BananaGearStudios
@@BananaGearStudios Doesn't NXT support detecting light? You could create light-curtain style setup where the item blocking the light is interpreted as the item being close the edge? You might be able to do full light curtain with multiple bounces if you used real mirrors in addition to lego blocks but something like light white led in a pipe-like structure to prevent light from wrong LED hitting another sensor + light detecting sensor should allow one straight line detection.
Disney recently showcased this exact concept for humans to walk on. Some dude has been working on it for years and this guy just makes it with some legos LMAO
@@DigitalWolverine "Recently" Quite a few years old by now innit. The showcase that technology in one of their techshows in the park, sadly they have a patent on it so nobody will ever use it.
It's a strange feeling to be so proud of someone I don't even know.
But I am, I'm proud of you. Good job kid.
Thank you, that's kind of you to say.
@@BananaGearStudiosVsauce commented on your video lol
I get that too some times, yet i am just 15. Weird isn't it.
dudeee that’s insane
*duuuude*
Duuuuuuuude
Thanks! I appreciate it!
This was super interesting! As a Space Engineers player, I feel inspired to use this tilting disk principle in a future factory for moving cargo containers and vehicle chassis around.
*Clang has entered the chat*
you are in my prayers
may clang forgive your ignorance
@@oatjuice5921 I thank you for your concern, however I think we could both agree that Kelevra Engineering could pull it off.
Isnt it patented by disney lab? Saw it first on theyr channel
Space engineer that is one of my dream job
It's kinda insane to me how that Disney omnidirectional threadmill was revealed earlier this year, and we ALREADY have a working, small scale lego version of it.
The concept existed way before Disney. It's existed in factories for years
Watermark your videos!!! At least the most important shots
This^
Great channels like codyslab got clips viral but nobody knew who made them cause they weren’t watermarked. You don’t want that to happen
@@SG-yq7fm codyslab has 2.2 million subscribers, I think he’s fine.
@ his anvil on mercury video went viral when he was quite unknown. But he didn’t put his name on it so the freebooters got all the attention
Thank you, I do use RUclips's in-built watermark in the bottom right corner, but I didn't really want to clutter up the screen with another watermark in the video itself as well.
@@BananaGearStudios Just FYI: The built in RUclips Watermark is just an overlay by the player, so it's completely gone when the video is downloaded.
Just be prepared for Mickey to show up with a cease and desist and a baseball bat!🤣
My thought exactly. Great to use as a teaching video but cannot claim it to be their idea. Maybe their lego design but not their idea.
Haha, I never claimed that I came up with the idea though, so should be fine. Also this isn't the first video I've made on this idea and everything's been fine so far.
@@BananaGearStudios You just never know... Stay safe out there 🫡🫡🫡 Great work btw
Disney is coming for your 🍑
Plz be joking @Kuwustilam
all that figuring out 1x1 stuff reminds me of early minecraft redstone days... amazing work!
This is one of the coolest LEGO builds I’ve ever seen in my life
absolutely brilliant! an i love the 90 degrees joystick idea
it's the holotile disney thingy!
My exact thoughts
Exactly !
Yep, the design is similar though here the discs tilt in all directions whereas they're fixed on the Disney version. I mentioned that I first saw this idea done by them in my first video on this, where I made the larger treadmill version I showed at the start.
@BananaGearStudios i just checked the mkbhd video on the holotile and they're not fixed. They also tilt. Maybe a note in the description should point out that this idea came from there. Incredible implementation though!
Almost. It doesn't have the speed and directional sensors like Disney's, which I'd argue are the most important part to making it not only functional, but practical. I do realize that this is just Lego, so practicality is out the window already. Still really cool though, and way beyond my engineering skills!
Bro just listening to his voice is so calming great video
2:50 is literally off camera mining but for Lego lol
14:30 this is actually genius. Like legitimately you are a great designer.
Here's a naughty thing you could do:
Lego doesn't make a pin hole 8 tooth gear, but you can! Just get a drill bit of the exact correct size, and drill out the axel holes of some 8 tooth gears!
I may or may not have already done this on some other gears....
The one and only Taran. ❤
Could also transition to a bar using axle connectors but then it would make the entire build a few bricks higher
I am proud to say that as a Master Builder, that I had the same idea/method to solving the issue at the beginning of the video with the gears and net!
I’m glad you elaborated on the process!
17:04 the loose tile is killing me
you suckkkkkkkk 😂
Very cool, great job; what might make it even more visually impressive is changing the direction controls to move the central portion and gears underneath, and fixing the top platform in one location. That way when you change the direction of the top treadmill, its always in a fixed location rather than shifting around.
Great job though!
Everything is relative! Put a mini camera fixed to the platform! Would love to see a follow up video of just cool mini-movies made with this
That's a nice idea! Of course the whole mechanism under the net is pretty heavy, and so more force would be needed to move it around with the joystick, but you're right that it would definitely look smoother when the treadmill changes direction.
@@BananaGearStudios One solution to this might be adding additional linkages above the gear system and only moving a midsection of each axle, thereby "bending" the top end in one direction without changing its position. Each axle would look like this from bottom up: Straight axle with gear system - linkage - angled axle (freely moving) - linkage - straight axle (fixed upright in a grid which is shifted in its entirety in various directions) - linkage - angled axle with disk at the top and held in place by the net. Technically this type of linkage would move the top platform up and down slightly when switching the drive directions from one extreme to the opposite side (even more than now), but if the tilting angles of the disks are kept to a minimum, it shouldn't be too bad.
@@Spanksh Or just mount the camera on the moving top plattform.
The whole thing is just insane, but somehow, the thing that impressed me the most was the multi-directional net-housing w/ the joystick. Like how do you even think of something like that?? Brilliant
I love videos like this because it illustrates how ANY product we use takes way more engineering than we think it does
1:57 such a smooth transition
I don't comment often on RUclips, for most videos - even the really good ones, I just click "like” then leave. But this...this Sir, is a master piece. The work, the way you deliver, the way you explain your thoughts...You can't see me right now but I literally paused the video and clapped multiple times during the video. Awesome stuff Banana gear studios. LOVE your work!!!!!
Wow, that's lovely to hear! I'm glad you liked it!
Amazing design, I love how you walked us through the issues you had and the process you used to solve them! One humble idea: it seems like the net is a little loose as-is. Do you think you could make your own sort of net-frame using a lot of those Lego strings? You could tension the strings more and prevent some looseness of the surface, as well as allowing you to make a larger frame, depending on the length used. You could even make a second frame below the existing one that moves a proportionally lower amount, so you could have a second string supporting the tilting axels.
Thanks! And that's a great idea - I'm sure I could definitely use rows of strings instead of the net, and that way I could tension them properly and make the grid any size I want - sounds like it could be a huge improvement!
I'm impressed with how well balanced a minifigure is on the treadmill! Nice job!
4:00 it would be a much simpler system. If you were able to continue on this route, if you did the two separate layers, the first layer you could start the way you had, the second layer could be very similar, all you would need to do is on the second layer, put a gear on every single shaft, but on the ones that are rotating the opposite way drill the inner spline of the gear, so it is able to rotate in a different direction than the shaft, but then it would not be a legal Lego build, it would be awesome if Lego made gears without an inner spine and just a round hole.
You could theoretically make this layering system work by instead of trying to do the entire grid on one layer. Do a row per layer that would give you the space needed for bigger or more complex gear systems although The system will be taller. To save on height, you can use a v formation cutting the necessary height down by half
Could do this with 16 tooth gears as they have the transmission component versions with smooth center and then use 2x2 round bricks because they have an axle center and a matching 2x2 smooth plate that could cap. It would be a much larger treadmill tho
Why not just power the 2nd layer from outside the border of the mechanism?
What a fascinating mechanism
06:17 the reason there’s less friction is because the non Lego rubber band is closer to the base, not allowing the collars to touch as much.
Amazing design and engineering!
Wow! This is outstanding work in all aspects. I only needed to see this one video and I have subscribed.
Wellwellwell...as a professional estimatist I would evaluate the coolness-level of this to be approximately 486.2 out of 10. Excellent job! :D
Great design and build. As always - there is a plethora of things to try to perfect. Only one to mention - friction may be reduced when using rubber bands if even number of bands is used for each axel, where a pair of bands pull the axel on the exactly opposite direction with the same force, therefore reducing the friction of axel with it’s socket.
That's soo cool! ❤😮 The first time I actually saw this type of treadmill was in an MKBHD video. So cool that you where able to build this out of lego!
Best Lego mechanism video I have ever seen
Thanks!
You are an absolutely relentless problem-solver. Much respect.
This is so good! Great model/mechanism, great camera setup and excellent narrating.
Thank you! I'm glad you liked it!
Watching this gave me so much inspiration and motivation to continue building with Lego technic, thanks
Your channel is so underrated!
Thanks, I really appreciate that!
That was an amazing build! Thank you for taking us through the process 🤗
Absolutely insane! Didn't think it was possible!
mindblowing, what a fantastic engineering build, lego or not, and to commit to the legal build, totally hooked - love it
dang this is such a chill video with a chill vibe, never been more relaxed
That's great to hear, glad you liked it!
That is so cool! I especially love how you used the joystick and linkage mechanism. I wonder if you could use sensors and motors to created an automated bouncing DVD logo...
this is super cool! At 17:30 there is a plate not clicked in fully on the left. Otherwise, great video!
I’m going to follow you home
I can't believe you've done this
That's not by accident... Those plates are holding the net down, and the net is thick enough that it means the plates can't be pushed down all the way. It's the same for all the plates on that frame, but in that shot that's the only one that's visible.
@@BananaGearStudiosWhy do you comment like Retro Game Mechanics Explained?
Why would you point that out
Im in awe! Way to go! This is awesome. The way you corrected the joystick for procession is perfect 👌
4:30 - This 'bar instead of axle' idea might actually work, if you use the red 8 tooth gears, designed to slide on axles.
They don't engage the bars, and normally slip to one side, but as they're surrounded by other gears, they should stay in place :)
The gears that should actuate the bars don't have to do it directly, these bars sit quite tightly in axle connectors.
Amaozng work! Congratulations!
It looks like part of why the Lego rubber bands had so much friction is bc the pulleys were only supported on one side and were quite high up. There's some flex and the band pulls the axles together, perhaps causing them to rub over each other in opposite direction
This was a super cool build to watch and it’s nice that you showed us your thought process And how you got to the final design, I look forward to your next build!
Feed the algorythm.
This guy is underated
Wow! Incredible job!
I've watched the whole video and I have a few notes/questions.
1) Did you try leaving half the discs undriven, ie. idlers? You show how a single plane of gears can't drive all the discs in the same direction, but do you actually need to drive them all? With the light weight of the items you demonstrate with I think it is unlikely to work, but it would be an easy thing to test/demonstrate.
2) Why not drive the two gear planes with their own motors? They may not move at exactly the same speed, but it may be close enough for the small surface area.
3) You already pass the shafts of the lower gear plane through the upper gear plane so they can drive their discs. You can also extend some of the upper gear plane shafts through the lower gear plane and use belts, chains, or gear trains to connect them to some of the lower gear plane shafts. Did you try this?
4) Friction is why belts are not used in parallel. They rely on friction to work at all and yet they are held back by it. To reduce the friction is to reduce their power. I'm glad you demonstrated the friction issue and how bad it really was.
5) Your design uses a lot of parts. This is the opposite of over-engineering. Engineering is fundamentally about reducing the cost of doing something. As a rule, using lots of parts is a sign something is being overlooked. Sometimes you really need all those parts, but almost always you don't.
Overall, I'm impressed. This was a really neat use of Lego, and the presentation of the design process and the demo was clean and concise. Keep up the good work!
Honestly, when he showed the two gear planes at first, I was surprised that he never tried to just... power both at once from the side.
@@R4d6 Ah, but they both need the full grid of gears, cause those don't connect diagonally, so the axles from the bottom plane need to pass through gears in the top plane and now you've essentially turned them into one plane and it'll lock up when you try to drive both.
@@cameron7374 just have another axle which isn't part of the platform's axles going up a level, after branching off with a gear.
@@R4d6 So how does that allow all the axles from the bottom layer to pass through the top layer to reach the plates at the top? (without connecting with the gears that must be in the top layer's empty spaces to power it)
@@cameron7374 Well just look at 4:07! The guy does the setup, but doesn't think to power the second layer from the side separately.
Well that was absolutely amazing to watch! Well done!
This is LITERALLY the same design Disney came up with to create an Omni directional treadmill for VR, MKBHD did a video on it where he went in and tried it out!
Surprised he needs a treadmill when hes so good at running kids down /j
Yeah, that was the inspiration for this video, though this version works slightly differently as the discs can tilt in all directions whereas they're at a fixed angle on the Disney version. And I explained in my first video on this that it's based on that design.
Pin this #1
I'm so glad you did the 90° detail, I was so worried you would have made such a genius design and left the most important part (argumentable) left out
a good design is good when you don't even think about it.
That is a really cool and ingenious design!
On a further thought, i could make out two possible improvements:
1) Instead of moving around the net/frame for steering it might be even better to move around the driving mechanism and keep the net/frame in a fixed position. This would avoid superimposing the movement of the net/frame onto the moving platforms.
2) At 11:30 two 12-tooth double-bevel gears can be connected diagonally when offsetting them axially by half a stud (i.e. offset by a half bushing). I think the gears should run reasonably smooth that way.
Thanks! And I like those ideas - moving the driving mechanism instead of the net would definitely give a smoother look when changing direction on the treadmill, though it would add some complexity.
I had a quick try with the offset double-bevel gears like you said, and you're right that there's a lot less friction! Still slightly more than Lego gears have when meshing normally I'd say, but I'm sure they would've worked well!
Awesome build! Having modularised it, you’ve also made it extensible. Really nice work!
Man, now I want to see someone make a non-Lego, metal version of this (the first variant, with the two overlapping grids)
Edit: Apparently, Disney has one. Check it out; it's neat.
An imagineer at Disney build a whole floor that does something similar. I never looked up how it worked though you might find it interesting
ruclips.net/video/68YMEmaF0rs/видео.htmlsi=KsOxAxktC_1J8XKq
Disney has their Holotile thing that they're working on iirc, which is basically just this, but for real-sized people :)
The Disney treadmill...
Disney made it to be a perfect treadmill for vr really amazing
@@TylerBischoff The mechanics are different (because they're not constricted to 'LEGO'), but basically this is exactly how it works.
Wildly impressive!
Have you also tried to not make the wheels smaller, but the contacting object bigger instead? Like something the size of a planet? 😉 You basically just have to turn it upside down and mount it into an object you want to move.
What I want to say is that this may actually be useful, not as a conveyor, but as a drive system for vehicles/objects that can move on a level surface with very little clearance to the floor. The whole construction just has to be sturdy enough to support the weight of the "vehicle"
This might have been the coolest video I have seen all year. Thank you for making this!
Bros getting hired for nasa fs
I cant like this enough, this is so cool
jamiroquai ahh lego build
i was looking for this comment
you can say ass on RUclips, there's no reason to censor it. This isn't TikTok
@@UserOfTheName its funnier and makes more sense to me when its ahh, its already become a meme instead of its direct (colloquial) grammatical meaning
yeah i'm a nerd lmao
Very impressive! This idea is better than any solution I've seen before! There are many inventions in this world that are not blocked by technological development, but by the lack of a flash of inspiration. I believe that the ideas you share must make an outstanding contribution to this field!
I think using this you could make some sort of game. A game where you control a character and do stuff. What stuff? No idea. But,it would be cool.
Pretty cool! Thanks for explaining the techniques and reasoning behind the design.
I would LOVE to see a version where the grid does not move to keep it steady while changing direction !
Keep up the good work fellow ^^
Thank you! Yeah, that would definitely make the movement look smoother, though it would mean I'd probably need to make the whole mechanism under the net move from side to side instead.
Yeah that is kind of what I envisioned... Or maybe using schmidt coupling to allow for the geared base to move relative to the ground !?
Bro, you gotta put both Darth & Obi-wan on the platform...to battle. We were all waiting for that. 😅
Who else finds the little Lego moving around is adorable
this is incredible! you have a truly amazing talent with legos
Really cool. I think the net needs to be slightly more tensioned though.
This is Disney's next level tech. Thanks for showing it done so reasonably. Big hopes for the future. Sorry you can't capitalize though. But maybe I'm wrong. Still, big like and a comment, so you're a winner anyways.
Once you've separated the the axles out into odd and even sets, with only two of each nine needing power, you can't zigzag chain between them to drive them? Maybe I'm not thinking about it clearly (and I don't have any chain handy to try).
Hmm, I think the two axles of each chunk might be too close together for me to fit individual sprockets and chains around each one, but maybe it could work.
Amazing engineering !!
it might be destructive, but you could drill a hole into the small gears for them to freely spin on the lego axles to make the first idea work.
also you couldve probably just powered them in a checker pattern with a simple grid of small gears, but have every other gear freely spinning. they will help distribute the weight of the object above, filling out the gaps between the powered tiles.
very cool and inspiring!
1:11 you know what else is massive
LOWWWWWWWWWWWW TAPPPPPPPPPPPERRRRRRRRR FAAADE
My mom
What, your Mom?
Your ego
@@TheprobutnotYour joke also wasn’t thaaaat funny.
the video turned out WAY more impressive than I expected. Hats off to your great achievement! Just purely amazed😮
12:07 Why didn't you use a crossed belt to transmit power between the two sections?
well, you earned my sub. Great work.
Why not make a large grid like at 3:35, but then rotate it by 45 degrees and then attach it to a smaller grid above it using universal joints?
This beautifully illustrates the creative engineering process. It is very good.
Thank you for including a part (since I know you went through countless options) of the problem solving process in the video, for me at least that's the most interesting part of these videos. Not to undersell the final design, of course.
This is exquisite!
Generic comment to feed the algorithm.
If only.
Agreed
Can you feed me too?
Dont read my nam…
Oh wait no am not a bot
Feeding it rn
This is certainly a very cool omnidirectional treadmill
The engineering behind the drive system is excellent, but I think there’s a solution to making a drive system that’s a a total of two studs tall.
If you make the lower layer powered by having 8 tooth gears on all axels going horizontally on every other row, then having a two long axel with an 8 tooth on both spaces on the outside of the grid, that couples with an idler that’s on top of a spacer, so that it only meshes with one of the 8 tooth on the axel, and the rest of the remaining axels.
Each row can be coupled together with a set of idlers outside the grid
This is really cool. I've seen the holo table in person that Disney made. Obviously it's a similar premise. The main difference is that it doesn't actually tilt, they are slanted pieces that rotate independently from the rotation of the treadmill part. But this is super cool
Phenomenally cool! Glad to see this has gone viral because you deserve it
4:27 you were so close to solving the problem and instead made it way more complicated than it needed to be. All you had to do was pair the "idle" axles to the spinning axles with the transparent rubber bands. As each band would be working only on 2 axles, friction would not be an issue. Rubber bands could be placed at different heights to stop them from touching other bands. But I think that would be the whole project tbh. If you ever visit this idea again, please try this method and let us know how it goes 😄
they do exactly this at 7:30 but friction is still an issue
Look.. I’m not tryna be that guy.. but I’m gonna be that guy. Don’t comment before you watched the whole video man, because he tried this method and friction was a large problem with this. And also, as a 12 yr old with and interest in mechanical engineering… how the HELL would the belt only being on two axles lessen the friction? If anything, you would have less friction from connecting four because of less friction contact.
That’s really amazing! Well done.
Now do it 81x81
Absolutely amazing work
9:46 bless this man for seeing this abomination through 😭 exploring ALL options
Hey there! 3rd subscriber coming in again, really great job dude, it looks soo cool! I would never be able to do this! Congrats on making this!
You, sir, are amazingly brilliant! Well done. Very impressive
This is incredible!!!