One-Wheel Balancing Robot Can Stand Still

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James Bruton

James Bruton

Күн бұрын

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@gork42
@gork42 3 жыл бұрын
Brake discs would make great well balanced masses - even from the junkyard. Great bot!
@celeron55
@celeron55 3 жыл бұрын
These days they tend to have cooling fins which would waste power and make unnecessary airflow to mess things up. Find a model that doesn't have those.
@николайголиков-о7в
@николайголиков-о7в 3 жыл бұрын
Brake discs have a lot of excessive mass, because of their moment of inertia, specifically mass, that is to close to the axis. Much better would be, to use some form of rings. And also brake discs would have turbulent air, which will mess up balance.
@ryanokeefe12
@ryanokeefe12 3 жыл бұрын
@@celeron55 Maybe on 5% of cars (performance vehicles).. the other 95% have standard solid discs.
@ryanokeefe12
@ryanokeefe12 3 жыл бұрын
@@николайголиков-о7в A flywheel off of any motor... Flywheels are specifically designed to be as light as possible, for overall weight, whilst having as much MOI as required to keep the engine rotating smoothly.
@cambridgemart2075
@cambridgemart2075 3 жыл бұрын
@@ryanokeefe12 Almost all modern cars have vented discs.
@CMElliotte
@CMElliotte 3 жыл бұрын
Just having the robot lean should make it turn. It's not going to turn on a dime and I don't know how easy it would be for the robot to maintain and recover from a turn. The reaction wheel solution does remind me of riding a unicycle and doing quick turns. It's like a quick twist of your hips and then correcting the over/undershoot.
@sofuckingannoying
@sofuckingannoying 3 жыл бұрын
Look no further than cats. Cats know how to turn in mid-air with no fulcrum, reaction control thrusters, or aerodynamic forces, while also preserving the angular momentum. Would be a very cool project for James.
@jakobgschwind4722
@jakobgschwind4722 3 жыл бұрын
If he uses a wheel that is wider and round on the outside that should do the trick. Maybe it would also be better if he put the gyroscopes on the sides of the wheel.
@RichardBronosky
@RichardBronosky 3 жыл бұрын
Yes. He already has his answer in this video with the Electric UniCycle. On an EUC, you do all your turns by leaning and using the smaller diameter of the edge of the wheel which causes you to turn much like slowing the inner track of a tank causes it to turn. I don't know why he even asked the question.
@ilyasofficial1617
@ilyasofficial1617 3 жыл бұрын
@@RichardBronosky maybe the complicated one is because leaning forward could make it fall. i suggest maybe put a limit on how much lean angle is permitted (tolerance), say 15, when press forward. if not pressing forward, then activate balance mechanism in video.
@RichardBronosky
@RichardBronosky 3 жыл бұрын
@@ilyasofficial1617 I understand what you are thinking, but that is not how it works. It's not [directly] an issue of angle. It's about maximum torque and maximum speed. These balance devices are most comparable to balancing a broom on the palm of your hand. You keep your hand under the center of gravity and you and the broom stay relatively still. If you want to walk with it, you pull your hand back slightly and it begins to fall forward. As long as you can walk/run fast enough to get back under the center of gravity, you can keep it stable and even stop it. If not it falls to the ground. The same is true on Electric UniCycles, OneWheels, etc. The same would be true here. While there is vicariously a maximum lean angle, it's determined by the mass being balanced and the torque required to raise it back to vertical. Search for "OneWheel nosedive" to learn more.
@mematron
@mematron 3 жыл бұрын
Shame on you guys for telling James that his gyros would break up and kill him - lol
@kirkc9643
@kirkc9643 3 жыл бұрын
I laughed when he said that. Anyone who has seen at least a few of these videos should know better
@bizzehdee
@bizzehdee 3 жыл бұрын
Yep, that is the sort of thing that any man would want to learn on his own, the hard way. Speaking for myself, i would rather something fail and learn why it failed, than to never push the limit of something in the first place
@ALOSEmployee
@ALOSEmployee 3 жыл бұрын
This channel is amazing and I love all of these robots. I am inspired to do the same later on in life because of this channel
@manojsk6189
@manojsk6189 3 жыл бұрын
Yes Im also loved this channel
@sirareus
@sirareus 3 жыл бұрын
This whole video I was on the edge of my seat hoping James is going to reveal that he is making "Gizmo Duck" from Duck Tales/ Darkwing Duck.
@dafoex
@dafoex 3 жыл бұрын
I'm not a huge disney fan, so the closest I came is thinking it looked like Mo fro, Wall-e (which still is disney, I guess, but I've seen Wall-e and I haven't seen Duck Tales)
@suncat530
@suncat530 3 жыл бұрын
@@dafoex Wall-e is Pixar, which is a company that was bought by Disney, so what they make is quite different to "normal" Disney content
@BRUXXUS
@BRUXXUS 3 жыл бұрын
You're constant output of complex and unique builds never stops amazing me!
@D_The_Crafter
@D_The_Crafter 3 жыл бұрын
For the steering, maybe (when one of the batteries is the front) making the robot lean to the side you want it to steer it in with the gyroscopes while its driving forward can make it turn, and then when the gyroscopes moves back it will just straighten up the robot, not turn the other way.
@PhilCoati
@PhilCoati 3 жыл бұрын
This may take a wheel redesign to work but I think it could.
@HoRiOnS
@HoRiOnS 3 жыл бұрын
Turn this one into "Claptrap" and your channel will explode my friend.
@ClickItYT
@ClickItYT 3 жыл бұрын
Like his channel isn't already near the 1 million subs. :}
@HoRiOnS
@HoRiOnS 3 жыл бұрын
@@ClickItYT Yeah, I know it's gotten big. But with the new Borderlands movie comming up, and Claptrap being such an iconic character, I could see that doubling or more. If this movie is a succes, the person who has a real claptrap robot is gonna draw a lot of attention.
@blakelowrey9620
@blakelowrey9620 3 жыл бұрын
Yes pls build ai claptrap
@filval387
@filval387 3 жыл бұрын
@@HoRiOnS "Borderland movie" I beg your pardon?
@greenanubis
@greenanubis 3 жыл бұрын
"I'm gonna make bigger and scarier version in the future." My man!
@Blender3DProjects
@Blender3DProjects 3 жыл бұрын
Can't you use the gyros to hold it in a lean and that would cause it to turn?
@Snapum
@Snapum 3 жыл бұрын
I agree. I feel like you could do something like you did with the BB8 droid; when you basically moved the balance position to make it move. IIRC? So if you move forward and adjust the left/right balance offset to the left or right, you'd get a lean, and thus a curve. But then - it might lead to an exponential failure and it just falls down. XD. Good luck ~balancing~ that! :)
@MichaelAPede
@MichaelAPede 3 жыл бұрын
Yeah, like a one wheel motorcycle. It would need to move to turn, which is ok in my books.
@willjhcave
@willjhcave 3 жыл бұрын
Yup. This 👆
@CDRaff
@CDRaff 3 жыл бұрын
The only way to get them to make it lean is to mount them horizontally like he did in the last one. Then the problem becomes that if you set it to lean one way the second gyro(which is spinning the opposite direction) would counteract that force. You could spin them the same way, but then that would make the whole bot spin in place unless it was turning.
@paulsaunders5555
@paulsaunders5555 3 жыл бұрын
Ok, I may be oversimplifying but if you put a pivot and a servo below the vertical giros would that not tilt the bottom wheel as you want but keep the geniral structure the same. Probably a hideous idea. 🤭
@picklerichard3600
@picklerichard3600 3 жыл бұрын
Im amazed at how many sponsors there are here I cant even get mad at it thats good business
@CuulX
@CuulX 3 жыл бұрын
I love it! Can't wait to see it stand still with, rotate in place and drive around while turning!
@Gergenhimer
@Gergenhimer 3 жыл бұрын
Hmmmmm the full rotation gyro idea sounds interesting, but I feel like there has to be a super elegant solution that I’m too dumb to come up with. Excited to see what you end up going with!
@forbiddenera
@forbiddenera 3 жыл бұрын
I've been working on doing this with reaction wheels although I've been leaning towards gyros or a combination after your last videos. Looks cool.
@LeeWhitcher
@LeeWhitcher 3 жыл бұрын
Nice work, very cool! FYI these are called CMGs (Control Moment Gyroscopes) and are commonly used on satellites/spacecraft to perform attitude control without the need to eject mass. To maximize control effectiveness you should be looking to maximize angular momentum in your flywheels, where angular momentum = moment of inertia x rotational speed. Since moment of inertia is effectively mass x radius^2 you have 3 ways to get more bang for your buck: (1) increase mass by using copper/brass instead of steel (tungsten would be great but $$$), (2) distribute that mass as far out as you can (e.g. wind copper all the way around the rim instead of using discrete BBs, (3) get the RPM up as high as you dare. I reckon, from quick visual inspection, that you could at least double your control effectiveness doing this. Keep it up!
@saradeanna
@saradeanna 3 жыл бұрын
Nice, one step closer to making a real gizmoduck cosplay.
@franksonjohnson
@franksonjohnson 3 жыл бұрын
O great gizmoduck reveal your secrets, how do you turn??
@jdmeesey
@jdmeesey 3 жыл бұрын
This one looks kinda badass James!! Nice work!
@devilduckietu
@devilduckietu 3 жыл бұрын
Next step: One-ball wheel self-balancing robot. GO!
@CDRaff
@CDRaff 3 жыл бұрын
What if you varied the speed of the gyros? Would spinning one of them faster or slower cause it to turn?
@MrDianGamble
@MrDianGamble 3 жыл бұрын
That was my 1st thought
@bruceneely4859
@bruceneely4859 3 жыл бұрын
I was thinking the same thing
@gingermanc
@gingermanc 3 жыл бұрын
Yeah I thought this might work because a drone can yaw without pitching or rolling using a similar effect
@MadScientist267
@MadScientist267 3 жыл бұрын
@@gingermanc it's not gyro effect in a drone however that causes this... It's simply torque imbalance. Slower motors impart less torque than the faster motors, and the drone yaws as a result
@AltMarc
@AltMarc 3 жыл бұрын
To make it turn, replace the mechanical gearing 4:16 by two servo, when turning one servo needs to turn a bit more or less than the 1:1 ratio... it'll sure be tricky
@freddygrun7101
@freddygrun7101 3 жыл бұрын
If you control three or four control moment gyroscopes independently in a roof or pyramid configuration you can generate torque around all three axis. This would let you use them for stabilisation and rotation. CMGs are a fascinating topic, thanks for making videos about them. For anyone interested in them I can highly recommend 'Spacecraft Momentum Control Systems' by Leve, Hamilton and Peck. If you or others have questions, give me a shout. I worked with CMGs during my PhD.
@noiselesssun
@noiselesssun 3 жыл бұрын
you could make some sort of drag system to get it to turn, like an arm that drags on the one side of the robot to get it to turn that direction
@DanielLCarrier
@DanielLCarrier 3 жыл бұрын
If you make it rotate those gyroscopes on another axis it would be able to turn on the spot that way instead of having to lean to one side while moving forward.
@ryanbright2696
@ryanbright2696 3 жыл бұрын
To implement turning you could have loaded springs that suddenly release and the sudden angular momentum of the moving piece would be canceled by the turning of the robot, then if you slowly re arm the spring static friction will stop it from turning back
@Reality2Robots
@Reality2Robots 3 жыл бұрын
Awesome work James and always a pleasure to follow your creations!!!
@MattGratt
@MattGratt 3 жыл бұрын
Loving the beer socks! Keep up the good work.
@nijram15
@nijram15 3 жыл бұрын
Super cool! Interesting you mentioned that the weight needs to be low for the giros but high for the self balancing wheel. Would be cool if you would share your design process for these robots!
@TehBIGrat
@TehBIGrat 3 жыл бұрын
Finally a relevant sponsor that's not a scam.
@mechguy83
@mechguy83 3 жыл бұрын
One wheeled robot........ClapTrap from Borderlands? That would be pretty cool.
@ritinkornas5336
@ritinkornas5336 3 жыл бұрын
What about putting it on a single ball shaped wheel instead of this regular barrel one, in order to go sideways ?
@CrazyStranger11
@CrazyStranger11 3 жыл бұрын
I think that would put the gyroscopic precession off axis. All the balancing would be done by the wheel.
@NielsNL
@NielsNL 3 жыл бұрын
What would the force be if you use the gyros as reaction wheels in the current configuration. e.a. increase and decrease the speed of one of the gyros slightly. Would it be possible to steer that way?
@andylindsaytunes
@andylindsaytunes 3 жыл бұрын
Ida know; using gyros would make such a mess, even if he didn't put tzatziki on it first. And the pita would tear and would probably fall off immediately anyway.
@melody3741
@melody3741 3 жыл бұрын
I think reaction wheels are just not fast enough and waste energy.
@charliesteiner2334
@charliesteiner2334 3 жыл бұрын
That would rotate the robot forward/back, rather than side to side. But maybe you're on to something! If the gyros were horizontal this could totally work. Only problem is they would saturate super fast.
@thomasmckenzie1097
@thomasmckenzie1097 3 жыл бұрын
A way to make the robot turn is not to create a way to move the robot in a yaw rotation but instead use the gyros to turn the robot in the roll rotation This would turn the robot as yaw is a secondary motion to roll.
@de-bodgery
@de-bodgery 3 жыл бұрын
This is exactly like an EUC! The only significant difference is you use gyros for side to side balance and an EUC uses the shifted weight of a human and the cochlea in our ears. You created a fully self balancing EUC! I think you have a marketable product concept.
@wesleyashley99
@wesleyashley99 3 жыл бұрын
It seems like 2 gyros that spin opposite each other on a frame so their axels are locked parallel could be used as a balanced resistance to perpendicular rotation. So you would mount this frame in another frame that can be driven on an axis perpendicular to the gyros rotation. The drive against the gyros resistance would allow balancing on one axis. Other gyro pairs could be used for other axes.
@dheenadhayalan4206
@dheenadhayalan4206 3 жыл бұрын
I don't know for sure but you may use two separate servos for the gyro and operate them accordingly to turn
@sgavy
@sgavy 3 жыл бұрын
You should build one to look like the TV bots from fallout! Would be super cool 👍
@AlphaLegionTacticoolShitposts
@AlphaLegionTacticoolShitposts 3 жыл бұрын
That's what brought me to this video
@Razor10021990
@Razor10021990 3 жыл бұрын
For steering: Just use spring loaded poles which you can extend to the ground. Another idea. Use a big pole with weights on the ends parallel to the ground, and 90 degrees to the wheel on the ground. Moving it from one side to the other, you could lean your robot left and right by moving it. With it you should be able to make turns, although not on the spot.
@trevorgoddard2278
@trevorgoddard2278 3 жыл бұрын
If the round section wheel is soft enough the differences in the circumference of the wheel over the flat spot during a side-to-side lean will generate a twisting force when driven forwards or backwards, causing a turn into the lean.
@punkkap
@punkkap 3 жыл бұрын
Congratulations on one million subscribers! You inspire me to work on my ambitions.
@medivalone
@medivalone 3 жыл бұрын
Suggestion for how to turn: a weight that shifts side to side to change the center of gravity, which in turn changes the wheel from running on the center to running in the edge, which would cause it to turn as the wheel rotated. The tricky bit would be getting the gyros to balance the robot at an angle instead of just balancing to vertical.
@LastRoseStudios
@LastRoseStudios 3 жыл бұрын
Maybe mount the batteries in front of and behind the drive motor, and shift them left/right to change the center of gravity?
@reubenbuckley3647
@reubenbuckley3647 3 жыл бұрын
Love your videos James!
@UnidudeNine
@UnidudeNine 3 жыл бұрын
You have excellent quality content on your channel! Keep up the awesome work!
@H34...
@H34... 3 жыл бұрын
It is possible to have the gyros move 360 degrees. If you imagine two perpendicular bevel gears, one large (attached as part of the gyro) and one small. The small gear is attached to the gyro motor, and the big gear is held by a sort of carrier and can be rotated/orbited around the small gear. this does add a slight orbital component to the rotation, but there are ways around it I'm pretty sure. Alternatively you could have two large bevel gears engaged on opposite sides of the small bevel gear. This would give you two counter rotating gyros as well as canceling/evening out the orbital motion.
@UnidudeNine
@UnidudeNine 3 жыл бұрын
You have remade the drones from "Dr Brain Action Reaction" videogame from 1999. I think you should keep developing this. I ride an EUC over 30 MPH regularly. It's amazing and it makes me see there is so much potential with one wheel designs!
@ericlewis3444
@ericlewis3444 3 жыл бұрын
Genius. Love the beer socks. Maybe it's as simple as pneumatic rods that push down on one side or another with little casters?
@JohnDlugosz
@JohnDlugosz 3 жыл бұрын
Make the wheel a ball or double cone shape, so when it's leaning it will naturally drive in a circle. Then you can lean to turn.
@jayclines7075
@jayclines7075 3 жыл бұрын
suggestion... split the wheel. It would still be a single wheel contact surface but when turning one edge would move slower than he other. it would require another motor and encoder and drive controller. or figure out how to gear the difference between the 2 halves. but this would be much more complex. just my two sense. awesome work.
@Gainn
@Gainn 3 жыл бұрын
Is there a reason not to just put the motor inside the wheel?
@wiebel7569
@wiebel7569 3 жыл бұрын
Please put an actual cherry on top as a reaction wheel for the steering momentum. But then you must include some visualization for the regulation model. Seriously impressive work.
@nobilismaximus
@nobilismaximus 3 жыл бұрын
You could have taken your two wheel robot, added a third but have them as hubs sitting inside a large wheel.
@excitedbox5705
@excitedbox5705 3 жыл бұрын
I was going to say you need an accelerometer to keep it from walking off, but an encoder would work as well. Really any method for monitoring x and y movement will work. To steer, you could tilt forward until it starts moving and then use the gyros to lean sideways. Like riding a motorcycle or unicycle.
@gabrielhacecosas
@gabrielhacecosas 3 жыл бұрын
It would be cool if it could rotate with a reaction wheel, so it would work with 3 different systems, with gyroscopic precession, inertia of the device itself and with the reaction wheel.
@ThePentexSucksBalls
@ThePentexSucksBalls 3 жыл бұрын
Could make an interesting re-visit of the BB-8 project, no need for drive wheels and worrying about friction if the internal carriage is driven by gyroscopic procession.
@tsheddie7312
@tsheddie7312 3 жыл бұрын
Awsome! Wack a reaction wheel on Top!
@mattle3
@mattle3 3 жыл бұрын
So close to 1 mil!!!
@rogerdueck9725
@rogerdueck9725 3 жыл бұрын
That is an awesome robot, would love to see a bigger version you can ride. And have you seen the Abenix: active ball joint mechanism? I think that would be right up your alley with the Ultron build if you could figure out the coding for it. Cheers
@HowIsWaldo
@HowIsWaldo 3 жыл бұрын
To get the robot to turn you could use the balancing gyros to tilt the robot while moving. Much like when riding a bike, the self correcting nature of the moving wheel would cause the robot to turn. Turning in place would not be possible, but a series of backwards and forwards turning arcs could turn the robot around (like a 3 point turn in a car)
@ricogonda
@ricogonda 3 жыл бұрын
i suggest using an upright lever with a significant weight on one end of it connected to a servo in the front should provide enough momentum to force the gyro to counter steer to the left or right. Hope it works.
@wrickcollings7308
@wrickcollings7308 3 жыл бұрын
Try "wheel barrow steering", which is done by tilting the barrow while pushing. It would not allow you to turn on the spot, but if you are moving forward you just need to tilt the structure in the direction that you want to turn. Where the projection of the axel intersects the floor is the center of your turning circle. The effect has nothing to do with gyroscopic effect, as some (crazy) people seem to think, it works exactly the same way at any speed (above zero!). It's a bit like the operation of bevelled gears, (with and infinite number of zero length teeth) where the wheel is one gear and the virtual turning circle is the other one. On second thoughts, you could turn on the spot by shuffling back and forth, in a many point turn.
@davidjhyatt
@davidjhyatt 3 жыл бұрын
Mount the gyro on a slide that you can control position to bias weight distribution to control lean. You can use it to induce motion or to bleed off inertia of a reaction wheel if you add that. Cool bot!!
@TheRealAlpha2
@TheRealAlpha2 3 жыл бұрын
It's interesting that you bring up Electric unicycles because there have always be theories on how to make one stand up on its own and help new riders deal with learning side to side balancing. My thinking was always that you could only use a horizontally spinning gyro but that makes the device far too wide. this is the first time I've seen a narrow enough gyro platform that it could possibly fit into an EUC shell. Steering on those is usually handled by putting more weight on one foot or the other which causes it to lean and to turn. I wonder if something like that could be implemented on the robot although I feel like this is counter to the point of the balancing gyro that keeps it form falling but maybe a "controlled fall" is a better concept for getting it to turn and then counter balancing to bring it level again to stop the turn. I wouldn't be surprised to see one of the EUC companies try this at some point after this demonstration...
@Blox117
@Blox117 3 жыл бұрын
by using a ball instead of a wheel
@Super100JKO
@Super100JKO 3 жыл бұрын
A potential solution for turning? Some kind of a clutch system in the center wheel could work? Make the center wheel from two separate pieces like in the Omni-wheel and some kind of worm gear like in the past projects you have made, I think that combo would work well! Love your vids, keep it up!
@KnightsWithoutATable
@KnightsWithoutATable 3 жыл бұрын
Make the wheel a pair of cones with a flat strip in the middle. The flat part in the middle is for driving straight back and forth. You then lean the robot to the side, on to the section of the wheel that is angled, causing the robot to turn. You can also do this with a more rounded shape, but the math to get the right level of turning gets more complicated, but using a gyroscope sensor to get the tilt of the whole robot can be used to form a PID loop to control it. As for turning in place, I think you might need to simply make the wheel capable of 360 degree movement using a ring and contact system to transmit the power and sensor data. You could also limit the turning to just over 90 degrees and use coiled and wrapped wires like the ones that power the limbs of OpenDog. Getting the motor inside the the hub of the wheel and using compact cycloidal drives or planetary gears to replace the gear reduction belt would also be an idea, but it would raise mass and complexity. This might also require a third or even fourth balancing gyro for stability when traveling perpendicular to the gyros.
@rx8tom
@rx8tom 3 жыл бұрын
Encorporating fans to steer would be super cool! Maybe adjustable pitch propellers or moving ducts
@AmaroqStarwind
@AmaroqStarwind 3 жыл бұрын
For your robot: Use a spherical wheel to give it greater degrees of freedom on the ground, and also use your ball-CVT thing to allow slight variations in the speed of each gyro. For other things: I would love to see a belt-drive adapted for use on a derailleur, or a derailleur adapted for a belt drive. For ranting: I hate "hover boards" because they don't actually hover. They aee also only "boards" in the loosest sense.
@deslomeslager
@deslomeslager 3 жыл бұрын
The steering can be done with a small rod, hold in the middle, which can be shifted to the left or the right. The shift of weight will make the robot fall over, and now you can make a turn in either direction. And this is just an example, the idea is just to shift the weight to left or right.
@BenjaminGoldberg1
@BenjaminGoldberg1 3 жыл бұрын
If you have the robot moving forwards or backwards, then leaning left or right will make it turn. This obviously won't work when it's stationary, but it's the simplest solution. Anyway, great video!
@tannernewton8543
@tannernewton8543 3 жыл бұрын
why not 2 bottom tires? then you can basically do the tank drive style like the hoverboard
@magontek
@magontek 3 жыл бұрын
If the robot leans one side and accelerates, the differential radius of the interior part of the wheel and the exterior it's going to steer the robot. You can accentuate this stearing by makeing the tire part of the wheel with a bigger radius and flexible, so the contact surface widen. You can copy the shape of motorcicle tiers for that, it's preaty much resolved there.
@leftaroundabout
@leftaroundabout 3 жыл бұрын
It should actually be possible to steer without any additional hardware. The trick is to use the gyros to let the robot _oscillate_ side-to-side, rather than standing as still as possible. The effect is that the center of mass will alternately be on the left or the right of the tyre. Then you need to sync the motor-balancing so it e.g. accelerates while the CM is on the left, and decelerates while it's on the right, in order to get a net left-turning torque.
@spartanboxing1
@spartanboxing1 3 жыл бұрын
You took my advice on the one wheel. Great.
@endab5517
@endab5517 3 жыл бұрын
If you get the standstill working a rapid turn to the uniwheel independently in the direction you want to move and then a slower catch up movement to align the gyro may be worth a try. The split wheel idea does seem good too.
@ryanbright2696
@ryanbright2696 3 жыл бұрын
Does curiosity stream fact check or can any person "upload" their opinion to the site. Are there references linked to each documentary?
@SianaGearz
@SianaGearz 3 жыл бұрын
They are bulk-licensed documentaries, apparently largely from the Discovery Channel and the BBC. It does not offer video upload capability. It does not carry "Ancient Aliens" or "History Channel" junk in general, so odds are, their licensing sources aren't the worst. I don't believe that CuriosityStream runs its own editorial crew that fact checks each documentary specifically. The site itself doesn't offer a way to publish references, there is a short blurb that is presumably just scraped off the same source from where program listings are generated for TV when such documentaries are aired, so it's up to the particular documentary authors to credit their sources in the video body itself or elsewhere separately, it's literally the same documentaries that were produced for broadcast TV, so expecting semi-interactive features like that would be somewhat misplaced. There is a comment/discussion section, which is predictably usually nearly completely empty, even on promoted documentaries, and documentary authors do not participate in it, odds are, they don't even know that it exists, since it's all recycled content from broadcast TV. They have a sister packaged deal service Nebula which is nominally non-documentary but houses a bunch of contracted KZbinrs with knowledge-based primary content, some obviously more knowledgeable than others. They have a private way of uploading things, you can't just join as a creator either.
@MadScientist267
@MadScientist267 3 жыл бұрын
The real answer to this is "don't use spoon fed information sources"... Critical thinking goes a lot further.
@endodd_7742
@endodd_7742 3 жыл бұрын
A possible way to turn would be to tilt to the side you want to turn towards. By balancing on the edge of the rounded wheel while driving fowards or backwards, the radius of the wheels section that is touching the ground is smaller on the side it is tilted towards, thus travelling a smaller distance in that direction, which results in the Robot turning. I think to make that effect work well the wheel needs to be wide with a small curvature or even a V shaped cross section with a small angle, so that a lot of surface is touching the ground when turning. A welcome side effect would be, that when tilting, the center of mass is shifted towards the direction you want to turn in, which shifts the center of inertia and for that reason would help turning. The main problem is, that your Robot isn't able to tilt for a sustained amount of time as the gyros will reach their endstop after a while, so it would have to turn in small intervals, stopping to reset the gyros a couple of times.
@jetison333
@jetison333 3 жыл бұрын
You might be able to get it to turn by leaning it like everyone else is saying, but a reaction wheel would make it so so awesome.
@MatthewScur
@MatthewScur 3 жыл бұрын
What would happen if you slowed one gyro down and sped one up temporarily? Wouldnt the gyroscopic procession pivot the chassis around the central axis?
@asailijhijr
@asailijhijr 3 жыл бұрын
It would certainly be interesting to see one of these that was safe to stand on. The human rider might be able to solve your conflict of one system likes a low centre of mass and the other wants a higher centre of mass.
@ramen244
@ramen244 3 жыл бұрын
Eventually you are gonna have a working Claptrap unit from borderlands
@turtledude01
@turtledude01 3 жыл бұрын
For the turning you could theoretically use a rounded wheel profile, and then put the wheel assembly on a tilt, I believe that would then allow for running the wheel at a slight angle to the ground, wouldn't give a very good turning radius but it would be something Im basing this idea off the "lean to turn" idea of a bike, not 100%sure it would work as I expect it to though
@anggorotriatmojo1200
@anggorotriatmojo1200 3 жыл бұрын
Damn, so close to 1 mil subs
@20131
@20131 3 жыл бұрын
Can't you turn if you slow down one of the gyro's?
@Maclman1
@Maclman1 3 жыл бұрын
Could you have it lean to one side to turn? Kind of like a motorcycle turning. I'm thinking it will work because when it's tilted, you get an inside edge and outside edge of slightly different radii, so it turns. In other words, roll it a bit to turn, don't yaw it
@MrDianGamble
@MrDianGamble 3 жыл бұрын
Seems like that could work
@Otakutaru
@Otakutaru 3 жыл бұрын
I would try to make a 3d gyro so it can spin 360 on 3 axis. You could use it as a reaction wheel as it tries to stay still in space, or lock one axis and use precession
@tencrawler
@tencrawler 3 жыл бұрын
This is a great start to a Claptrap
@davidparil8100
@davidparil8100 3 жыл бұрын
One way to make it stable would be to make a proper physical model of the system and tune the stability that way... (in some software like matlab)
@dowesschule
@dowesschule 3 жыл бұрын
11:00 does speeding the gyros up or down make a difference?
@bitingpuppy
@bitingpuppy 3 жыл бұрын
you could make a swerv drive for the bottom wheel and then the gyros would always stay facing the same direction and the wheel would spin underneath. The other thing you could do is with the ball wheel you previously did to turn the entire robot by making one side of the sphere drive faster and turn the entire robot with differential spherical drive
@ziad_jkhan
@ziad_jkhan 3 жыл бұрын
Infinite rotation, on the vertical axis, could probably make use of ground friction to keep it going in one direction through high acceleration one way and slow deceleration the other way
@wayneartist
@wayneartist 3 жыл бұрын
Could you steer it with controllable weights?
@Skyliner_369
@Skyliner_369 3 жыл бұрын
You'd want to turn by tipping the robot to one side. You'd kick the rear wheel around to change the facing angle. A bit... very tricky but I'm pretty sure you could program the idea. To turn left, you tip left and speed up the wheel to compensate the tipping force with... momentum. To stop turning, the device untips.
@nunetoyamato
@nunetoyamato Жыл бұрын
Nice work and video! About the steering in place problem… actually, if you keep rotating the spinning wheels axes all the way to 180deg you would still get a reaction torque steering the system back at some point. The fact is that as the spinning wheels axes are rotating about an horizontal axis, the total momentum (sitting on the vertical plane) increases, reaches a maximum then decreases back to zero, respectively creating a reaction torque in opposite direction of the moment (steering in the desired direction), then null torque, then same direction of the moment (steering in opposite direction). Sorry, it was a long explanation, hope it was clear 😅.
@akaHarvesteR
@akaHarvesteR 3 жыл бұрын
How about a centrifugal expanding moment arm? Imagine a pair of weights attached to a spinning pivot via an extending (possibly elastic) linkage. When the pivot rotates, the masses fling out and increase their moment of inertia, when it slows down, the linkages retract in. Alternatively, but much more complicated build, would be to actuate the retraction/expanding of the masses, to have full control over the angular momentum of the thing.
@dragonffly1
@dragonffly1 3 жыл бұрын
Idea for steering: a weighted mass that moves left or right. worm driven mass would be too slow, but maybe a servo with a weight on the end of a stick. The stick is pointing straight up to go straight, then moved Left/right lo made the robot lean and turn like a motorcycle. just a thought, awesome work!
@MiyuruPathum
@MiyuruPathum 3 жыл бұрын
Nice one as always.. @James Bruton is it possible to use an Omni wheel for this? just a thought.
@Stoneman06660
@Stoneman06660 3 жыл бұрын
Can you put an end weighted rod on the top that is shifted laterally to drive the turn, then returned to the centre before the reaction wheels correct lean?
@AntonyScerri
@AntonyScerri 3 жыл бұрын
Would a weight moved left and right just cause it to lean sideways and with an appropriate wheel shape would it turn (without any reaction wheel)
@tomcarney9852
@tomcarney9852 3 жыл бұрын
A weight that moves in a semicircle perpendicular to the ground. Move the weight to the left side to move left, to the right side to move right.
@tylerttinsley
@tylerttinsley 3 жыл бұрын
Maybe use the gyro as a flywheel?
@514_cricket
@514_cricket 3 жыл бұрын
Someday im gonna download this *3d printing music* just for the nonstalgia
@Meikulish
@Meikulish 3 жыл бұрын
With a reaction wheel on the yaw axis we could see three different inertial control methods!!!
@fellipec
@fellipec 3 жыл бұрын
You'll either create our weapons to fight skynet, or will create skynet itself! Impressive.
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