Are Ball Shaped Wheels Practical?
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- čas přidán 22. 05. 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 CZcams 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. - Věda a technologie
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? 😅
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.
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
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!
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.
"That's no moon..."
I'm excited for your next stage of videos you are making, more metal, tougher projects, love it
Amazing work and dedication!
pumped for the next video, can't wait to see you ride that thing!
Christ you do a lot in a week. Looks amazing, can't wait to see the finished product.
How you can keep up this production schedule is absolutely mind-boggling
super cool :). I like the focus on things to ride on,. Thank you
Thanks, more coming!
James, you save me SOOOO MUCH TIME!! Thank you.
Great video as always James
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.
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
Nicely done!
Gotta love that Collin Fruz style surprise ending. Keep making amazing things!
Good job! Can't wait to see the result!
Amazing work
Can't wait to see it all put together and you riding it 🤜🏼🙏🏽🤛🏾
Another great project!
A little tip for tig, set your arm on something smooth enough to slide. Support helps consistency!
Man, its astonishing how productive you are. Your time management must be flawless.
Such the pro!! Love your work!
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!
Awesome. Looking forward to your next video.
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
its so nice to see you build something bigger
That was an incredible and surprising reveal
Yay just got home from school and new James Bruton video!
that is some fine engineering! you are amazingly impossible or impossibly amazing! lol I admire your work.
Oh man, I already envy you! This is sure to be the ultimate fun vehicle!
You continue to amaze me…
They look sick!
Cool video, as always James 😎
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.
I'm already subscribed. As long as I can drive this design into the pub ;) Very nice mate :)
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.
I think I figured out how James can keep pumping these awesome projects out so quickly and reliably...
James IS a robot!! :^O
Absolutely bonkers! I can't wait to see it!
YOU are a crazy engineer
and I love you
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.
James is upping the game a little at a time, he was driving them, now he's riding them. I love the progress
Absolutely great. 👍 Respect.
Great teaser at the end.
That simulation at the end was priceless.
YOU ARE INSANE!... AND I LOVE IT!
A rideable BB8 would be neat.
I'd try using bushings for your thrust bearings steel and graphite should do the trick. btw great videos
That's a lot of work! Nice balls, sir! 🙂
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
James, you are amazing
Woke up early on my day off to see your vid James!!!
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.
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.
Good job
wow you are a production master!
Thanks, riding the whole thing comes up on Tuesday!
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.
What a reveal at the end! I was laughing out loud!
You got me laughting at the end, with the three balls. You are a mad man, I like it!
Jesus. I'm proud of myself when I patch some drywall and it looks halfway decent.
That ending was surprising!
Amazing!!!
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.
That's dedication!
I'll be curious to see what happens once we get around to upsizing the omni-monowheel. I'm not sure if the designs tested will scale as well as the alternatives from Honda and OmBURo.
The man can build ballz at speed! great video
Looks like the Goodyear 360 prototype tire , really nice
If everyone had the productivity of James....the world would be a better place!
Could you use non-slip tape to cover the plywood edges in the cap/roller area? It's used on stair treads and almost feels like adhesive-backed sandpaper.
Its look like a Robotnic gear.
love it!
GENIUS!
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...
Perhaps 3D printing a cover for that wooden area of exposure? Just something simple you can place so the wood doesn't have to get damaged.
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
PLEASE print little pieces to go in between the wood ribs so it looks smooth
You'll be the king of town once you go out shopping with this vehicle! 😎
no matter what angle you look at someone riding that thing, you're basically always gonna look like a giant... richard. lol. love it.
Thanks!
Pls tell me what the CNC music is, I love it
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
Do you have an editor? Such an insane amount of work every week not even including videography.
Love these R2D2 heads!
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 :)
1 week?? Incredible!
what about for the roller at the "top" of the wheel, you build a similar mechanism to a ball mouse. to where it can roll in any direction.
what's the music playing during the CNCing?
I was trying to make up a joke about wheel-shaped balls, but it's driving me nuts
Wonder how well the wheels would work on a trike:D
I know James is limited by costs etc, but do we reckon using carbon fibre for the wheels would work?
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 🤷♂️
What about if the small wheel was replaced with an inline skate(rollerblade) wheel? The contact area could be kept small while keeping the directional roller.