Are Ball Shaped Wheels Practical?
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- เผยแพร่เมื่อ 22 พ.ค. 2022
- The original concept for this wheel was based on a project from Osaka University. The wheel is an omni directional wheel, normally these have smaller wheels around the circumference of a bigger wheel, and I’ve done quite a few omni-wheel projects in my channel.
In this case though, it’s a ball. The wheel is split into two hemispheres which can rotate freely and independently, this allows the wheel to be driven actively in one axis and passively in the other.
There’s only one small issue though, which is what happens with the active axis is driven so the peak of the hemisphere touches the ground, because the hemisphere can no longer rotate. For that reason, there’s a little wheel in the top of the hemispheres. This does limit ground clearance when the wheel is in this position, but this is no worse than a standard omni wheel with little wheels around its circumference.
The probability of driving on the little wheel for any length of time is also pretty small, so we’ll live with that part of the design for now.
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XROBOTS
Former toy designer, current TH-cam maker and general robotics, electrical and mechanical engineer, I’m a fan of doing it yourself and innovation by trial and error. My channel is where I share some of my useful and not-so-useful inventions, designs and maker advice. Iron Man is my go-to cosplay, and 3D printing can solve most issues - broken bolts, missing parts, world hunger, you name it.
XRobots is the community around my content where you can get in touch, share tips and advice, and more build FAQs, schematics and designs are also available. - วิทยาศาสตร์และเทคโนโลยี
Completely impossible to understand how a person can figure out, draw, produce so many different projects and content of such high quality, in so little time. But we gratefully follow the journey. Thanks!
The only logical explanation, no matter how improbable, is that he has managed to build a time machine.
I'm convinced James has built many robotic slaves to do his behind the scenes work and he just takes the credit.
what if this is just his spare time side hustle?
@@marshalltucker9690 just a way to destress lol
Not that hard to understand if you remember that not there are people and place who can devote a large amount of there month to this things
Just gotta admire James' insane productivity. The man is a MACHINE when it comes to pumping out cool new tech.
He probably has tech that yields him more than 24 hours in a day!!
yessssss
@@ph33lix This is the only plausible explanation! I can't imagine how he ideates, plans, designs, makes, assembles, films, and edits all these projects and videos in such a short time span!
“This one gets screwed in the bottom just like all of the others” 🤣
@@dfgaJK 100%. Even if doing full time, this productivity has never been seen in industry.
I can’t wait to figure out what the actual vehicle will look like, because I can’t imagine anything with these wheels which doesn’t look funny
there where much more ridiculous vehicles out there in the known span of our history... and i thing it will look fantastic!
Especially if the wheels get more spaced out, like its a tricycle. And lower the seat a bit, then it will quite look like something right out of Star Wars or Cyberpunk ;)
It's a ballsy contraption that's for sure. (Patron member, I've seen it 😁)
@@Scott_C no Spoilers!... at least only in PM 😜
If I were trying to build something like this, I think I'd base it on a recumbent tadpole trike. But that's just me. :)
What makes you think it won't look funny? 😅
That ending is priceless!! Good on ya for being able to make so many cool things in just a week :)
Certainly getting a lot of practice with his TIG welder
Wonder if you tell the order in which he made the wheels by the improving quality of the welds
James I recommend a small arm rest for your welding so that it can be stabilized for straighter welding trust me it helps a lot
Thanks, I think that would be helpfully
indeed - my dad taught me to make sure you are comfortable as possible, ideally sitting with your wrists on the bench.
Get a piece of steel or ally to put earth and put on your bench - then just place your jobs down and weld.
And wait for the post gas to stop before lifting the torch away.
I just recently rewatched 2012's The Lorax and one of the main characters rides a single wheel motorcycle. I don't know if it's possible but with your self balancing knowledge and omniwheel knowledge you are the perfect person to try to recreate it
You can ride MonoWheels with a standard tire. You can do the side to side balancing and the monowheel can do the front to back balancing.
@@blise518B Depending on how its done you can even turn it like a normal motorcycle too. Though the turning radius is going to be quite a bit larger xD
@@mrbuttocks6772 if you look at the smaller Monowheels they can turn pretty much on the spot.
Major props with the reveal at the end of ALL 3 WHEELS in a WEEK! Amazing work (as always) James!
Part 2 comes out next week!
super cool :). I like the focus on things to ride on,. Thank you
Thanks, more coming!
I’d love to see a real-time screen recording of the whole CAD process.
yes i really wanted to see that
Absolutely. Always impressed with his results and forever curious how he used CAD to get there
@@boonjabby there are millions of videos on how to use cad. that's how he used cad to get there
@@bmxscape yeah I know. I use CAD myself. Nothing wrong with wanting to see him go through his thought process.
Like watching Martin make the marble machine
Same here! That looked like a lot of effort to just show a time-lapse of.
Love the new tools! Can't wait to see more from the shop!
I am so excited to see the project from here. You are so amazing, and I appreciate your videos.
I'm excited for your next stage of videos you are making, more metal, tougher projects, love it
How you can keep up this production schedule is absolutely mind-boggling
Amazing work and dedication!
"That's no moon..."
pumped for the next video, can't wait to see you ride that thing!
Man, its astonishing how productive you are. Your time management must be flawless.
Christ you do a lot in a week. Looks amazing, can't wait to see the finished product.
Gotta love that Collin Fruz style surprise ending. Keep making amazing things!
James, you save me SOOOO MUCH TIME!! Thank you.
That simulation at the end was priceless.
I can think of a likely failure (I don’t get the early views) is that there’s not nearly enough flex/give in the big spheres for an adult human when hitting any imperfections where a suspension system would help reduce the severity of the shocks. I expect the plywood isn’t really suitable for this sort of mechanical stress scenario: it’s great in a lot of scenarios, but the dynamic forces of this use-case seems like a truly bad match.
This is a real concern he's expressed when posting on Patreon. There's going to be at least 2 more videos on this. Hopefully he'll address it.
I was thinking that he could start by adding a "rubber tread" to the balls using something like Flexseal spray.
@@Scott_C Balloons in between the sections of the wheel. Paper mache the outside (plywood and ballons) then lay on generous helpings of Flexseal?
The plywood as a core should work fine for the extent that these projects are taken to, it's the surface on top that's problematic. It honestly just needs a rubber surface, one that has a good deflection characteristic.
Personally, though this is more in depth than James would ever take one of these projects, I'd cast silicone to make panels of a goldberg sphere, an icosphere dual, just to have a surface with a decent durometer, probably something in the 40-50 Shore A range at a minimum; print, mold, cast, have a tread, have the correct non-deflected geometry, and have some additional bits. Mounting these would also be fairly simple, just a shaft with a tapered flange tip, the durometer should be stiff enough so that the panel holds itself in location while the tapered flange is compliant enough to pop into a mounting hole, akin to panel clips except built in; it'd be a two-piece molding process, but probably one of the absolute simplest two-piece molds to ever exist as the geometry is fairly simple. The plywood core would need to be modified to have a polyhedral shell to accept these panels, but that's probably the furthest extent of modification for the plywood core, plus this would add durability anyways. I just think printed TPU would end up being too soft for this use, not to mention that'd end up being a ton of TPU printing when casting a rubber is arguably a lot more efficient.
A rideable BB8 would be neat.
Can't wait to see it all put together and you riding it 🤜🏼🙏🏽🤛🏾
Great video as always James
Awesome. Looking forward to your next video.
Amazing how much you can get done in a week. Awesome engineering and fab as usual. Mahalo for sharing! : )
Nice stuff on the Tig welding, bro! Can't wait to see it done!
Good job! Can't wait to see the result!
Nicely done!
Such the pro!! Love your work!
its so nice to see you build something bigger
Stunning work James the final moments of the outro are too good, at first I was imagining the wheels on a seat frame structure with a higher center of gravity, maybe wheelchair height but it was awesome to see you imagining it as a speedy go kart
I am genuinely excited for the next video
nice project, excellent idea. I can't wait to see the vehicle what look like....and size !!! ecxess creativity!!! keep on
James is upping the game a little at a time, he was driving them, now he's riding them. I love the progress
Amazing work
I like the new funky montage music! I feel like the exposed wood could have probably been sprayed with some sort of rubberized coating the protect it from the rolling friction damage if you couldn't get those edgings on. can't wait to see how this vehicle turns out.
Yay just got home from school and new James Bruton video!
Another great project!
You continue to amaze me…
That was an incredible and surprising reveal
Oh man, I already envy you! This is sure to be the ultimate fun vehicle!
that is some fine engineering! you are amazingly impossible or impossibly amazing! lol I admire your work.
Absolutely bonkers! I can't wait to see it!
Cool video, as always James 😎
it is 2 am and i am high, perfect combination for this video
edit: just finished it, great video! can’t wait till i get to see this thing rolling around :D
If everyone had the productivity of James....the world would be a better place!
YOU are a crazy engineer
and I love you
They look sick!
Absolutely great. 👍 Respect.
I'm already subscribed. As long as I can drive this design into the pub ;) Very nice mate :)
A quick TIG tip that improved the quality of my welds was to be careful not to pull the fill rod out of the shield gas between dips. Every time the hot fill rod sees air the end will oxidize, and that oxide gets fed directly into the weld.
A little tip for tig, set your arm on something smooth enough to slide. Support helps consistency!
Great teaser at the end.
I think I figured out how James can keep pumping these awesome projects out so quickly and reliably...
James IS a robot!! :^O
That's a lot of work! Nice balls, sir! 🙂
wow you are a production master!
Thanks, riding the whole thing comes up on Tuesday!
6:25, I felt that sigh deep in my soul. little tip about welding nuts, you mentioned it is sparky, that's not the mild steel/stainless steel combination, it's the zinc coating on the nut. Grinding the zinc off nuts/bolts makes them nicer to tig weld.
Welding mild to stainless is also fine for the sort of work you do, the main concern is often corrosion and a slightly weaker weld, but nothing that you'd need to worry about. I've been told using stainless filler rod is the better choice if you have to mix them, but again for your projects it wouldn't matter.
Your tig welds also look alright for someone who doesn't do it daily. You seem to be hovering your torch and filler hands in the air when you weld, I find it easier when I can rest my hand/wrist down on something to keep steady. That being said you seem to have pretty steady hands in the air, at least compared to me. You can also try different ways of holding the torch, I personally find it easiest when I hold it like a pen, with my index finger on the button.
That ending was surprising!
Jesus. I'm proud of myself when I patch some drywall and it looks halfway decent.
YOU ARE INSANE!... AND I LOVE IT!
James, you are amazing
no matter what angle you look at someone riding that thing, you're basically always gonna look like a giant... richard. lol. love it.
What a reveal at the end! I was laughing out loud!
Legend.
Can't wait to see what gearboxes you use to manage to talk as there must be a lot of mass there your spinning. In theary it all even but big means talk cubed so changing direction and keeping it nimble sound challenging. But still really cool construction methods.
Is weight an issue with the plywood? Does heaviness make it more stable and efficient or less?
It would be better if it were lighter, but that's the most economical weight vs strength material I could think of.
Its look like a Robotnic gear.
love it!
Woke up early on my day off to see your vid James!!!
Good job
You got me laughting at the end, with the three balls. You are a mad man, I like it!
9:45 you look so proud it was quite a wholesome moment hahaha.
I love the thought of him having a small team. The builds would be insane (they already are insane though)
it would be cool to see a wheelchair running on these. i wonder how practical it'd be and whether there would be any sort of benefit.
It won't ever get stuck on the carpet near it
The man can build ballz at speed! great video
That's dedication!
You'll be the king of town once you go out shopping with this vehicle! 😎
I'd try using bushings for your thrust bearings steel and graphite should do the trick. btw great videos
Amazing!!!
I was trying to make up a joke about wheel-shaped balls, but it's driving me nuts
Am I a child for finding the phrase "screwed in the bottom" unreasonably funny?
Man I can't be bothered to do a lot of things till I have to but this guy goes all out on toys for a video
curious to find out about the new workshop, living the dream ;D
oh instead of a drill press, what about a cheap SIEG mill? you can get relatively nice ones from between 2 to 5k here in Aus, I got a cheap drill press a few years back, was less than amazing centering , and not terribly cheap, I think it was about $300
Dang, you put a lot of work week to week. A lathe would be a nice addition for doing shafting. Especially for making snap-ring grooves.
As always , great job Sir!
Despite you have an idea of an entire vehicle already, this wheel motion reminded me of Dark Knight's (Batman) Batpod (motorcycle). It didnt actually have ball-shaped wheels but they were wide enough so the vehicle could move sideways by rotating the wheel perpendicularly. Search for "Batpod scene" clips.
Maybe you could make a smaller version of such a vehicle with active balancing? Or maybe even a version that you could ride...
1 week?? Incredible!
Wow seriously productive. Can't wait to see it finished. On a side note, get your CNC bed stabalised for cleaner cuts and less chatter, not that it particularly matters for wood :)
GENIUS!
Love these R2D2 heads!
Great choice of materiels. , the U tyre looks a perfect fit. James, how do you choose your dimensions. constrained by interfaces like bearings, and, others to be designed to transfer forces , others to create a physical surface, and some artistic freedom TIG Welding , better than mine. Seriously impressed by the six hemispheres. RS and Farnell used to publish catalouges, you could scan through them and gain a wonderful insight into the variety of available components, but also within the variety there is standardization. vero board. HPC do a great gear catalouge, That is going to be the most amazing vehicle even a segway cant go sideways.
How he does all this in a week is unfathomable.
“Gets screwed in the bottom” 😂
This video convinced me,
James is a warlock
I can imagine a motorcycle with one of these wheels on the front, and a normal drive wheel on the back. Cornering would be interesting :)
Looks like the Goodyear 360 prototype tire , really nice
you had me at "gets screwed in the bottom"
GENIUS i like playwood. It's light strong, and acually carbon negative.
Probably won't see this but you need to use staples or carpet tack/nails on the wheels rubber I think, it's going to slip it's not being pulled but but pushed, I think it's called bead lock on a car wheel where the tyre won't slip its textured surface so maybe glue would do it 🤷♂️
Thanks!
For an awesome video and the algorithm