What this proves is that different filaments on the 3-D printer for the actual tire concept is needed not just the same rubber filament for all the different tube positions. All nuts and bolts aside.., if they were to use different strengths of different filaments to make the different sizes of tubes in the concept 3D printed tire... it should work
Speaking of “pot holes”, when repairing asphalt there is a heat pot that melts rubber to viscus enough to pump into cracks. I think using one of those to finish off the tire by filling all gaps, will be a way to actually manufacture these at a reasonable cost. You can use recycled tires to melt down to further reduce your costs. If any of that helps save or make you money, I need a back hoe. Good luck
This is so Old Top Gear I love it, the humour and everything so much like the testing of the Hammerhead Eagle i-Thrust, ambitious but rubbish-ish (as they were decent for 1st try tbh)
If you like this sort of stuff recommend CarThrottle. Also HatFilms who very rarely do car stuff they are very reminiscent of the classic Top Gear trio.
Instead of nuts and bolts (which will invariably come loose with vibration) have you thought about tension cabling? Like using a steel cable woven through multiple peices of pipe and attached through the wheel rim. Then with wrapping the cable through multiple times before going through the wheel rim again, such that if it started to come loose, there would be a gradual degredation.
You're about back to steel radial tires if you're doing that much cable weaving. The idea is trying something fundamentally different. A hot melt adhesive would be an interesting approach that resists vibration, provided surfaces are properly prepared and compatible.
Extremely suprised with how rigid the wheels where! Love projects like these. Yes it was vibrating like crazy but still.. it did what it was designed for!
This was honestly a job well executed guys. Wouldn't take much refinement to make them work honestly. And glad to see Scott back as well it's great woth you two together.
Reminds me of putting playing cards on bicycle wheel spokes . Live . Love it took me back 60 years. Thanks guys . DON'T EVER GROW UP. JUST GET SMARTER. GOD BLESS YOU.
In case you haven't considered it yet, some (probably most) of the noise and vibration is caused by the seam where the tread meets. If you could find a way to leave about an inch of sidewall on both sides and mount that on your design, the noise and vibration should be closer to regular tires.
Actually, I thought the whole process could be improved by gluing the "drain pipes" inside a regular tire, )shortened some to fit), and then letting the sidewall "skirt" the wheel. This does away with the tread seam, which is a weak spot, and the sidewalls would prevent the tread from wandering right and left when gripping the road. It would be challenging, but this DIY is very feasible.
The first job I ever has I use to retread tires. And the two ends shouldn't be connected by a straight flat cut. You make a long diagonal cut. It gives more surface area for adhesion and it won't deform.
To me, all those bolts and nuts look like potential bullets when the car is traveling at high speed. 1200 bullets from tires alone. A real killing machine ;)
Amazing video! I'm hoping one day airless tires will be the norm. I'm sure i'm not the first to point this out, but 99.5dB is WAY more than 2x louder than 90db. Assuming that your measurements were taken at the exact same distance in both scenarios, its roughly ~9 times louder (8.91 times louder to be more accurate). With a standard reference sound intensity of 1E-12, the sound intensity values you end up comparing are .001 and .008912509 etc etc
Can you test acceleration and breaking compared to regular performance tires ? The usual principle is that air allows deformation required to get more (or optimal) adherence with the surface, more contact area. I'm curious about that principle since you need more rigidity in your concept to maintain integrity of the tire to lateral forces, it should adversly affect the contact area with the pavement. Let me know !
You should tell about this channel on driver61, i actually found this accidentally, it's so cool to see you 2 car friends having the fun of your life. I myslef can't wait to do car stuff when i growup 😀
We've been using airless tyres in the outback for decades. If you get a flat and don't have a space, do a small cut into the sidewall of the flat and pack it with Spinifex grass until you can't squeeze anymore in. Will run for 1000's of km's and save you life.
@@MishraArtificer tape, rope, garbage bags, vines, whatever gets you home. (Wrap through the spokes and around the outside, not just along the side of the tire, even with the best tape, unless you can seal the inside like a solvent-based bike tire patch.) It just has to be enough to work until you can do better. If it fails, you repeat or try something else.
Honestly, when we are living in the post apocalyptic wasteland and new tyres are impossible to come by, this is gonna be one of the most useful videos on the internet.
When putting tread on a tire don't make it a straight flat cut. You need to make a 4 inch... or a 10cm diagonal cut on both ends. It provides more surface area for adhesion and it removes any deformation at the seam. You could make it longer than 10cm, it's just a good amount of surface area with minimal waste. And I'm totally going to try and make these lol. Awesome video.
@@OVERDRIVE.studios maybe also try use some assembly compound....orrrrr....to reduce weight and effects of rotational forces increasing the g-force and therefore the effective weight of the bolts, why not just try and stick them together with epoxy? Maybe try pack out the outside of the wheel using space-foam held on to the piping with something like a tightly wrapped Kevlar sock before you put the tyre on?
Seems like a fantastic success for a 1st build. You're definitely on to something here. If you happen to do a revision maybe leave a little bit of sidewall as sort of a bracket to mitigate the tread from sliding sideways. Also if you can do it without cutting the tread and creating a seam I'm sure it would hold tighter. Either way that was a really nice idea and if I had the funds and tools I'd be trying to replicate this to apply to my normal daily driving.
Maybe consider putting that solution inside a tyre casing, then on the rim. That way it is all contained inside the casing, lessening the chances of it coming apart. It also means a continuous tread that’s not held together by screws. Any tyre could then be converted to make us of this.
Yeah that was my idea as well. It would then act as a large run flat ring. Dump some water beads in it instead of air. and you could still call it airless. lol would be heavy with water beads but would work. Also wondered why they didn't just cut the sidewalls out of a tire. that would leave a single tread ring to fit ultra snug(example you have to use heat to get it to fit. like a steel ring on a wagon wheel) . instead of a seam.
Suggestion. Here in the US, and I believe in most racing circuits, they have this thing called a "helmet". If you think your tire might come apart and start spraying nuts, blots, and tubing maybe you should invest in a couple helmets. Just a thought. Great video guys. Loved it.
Did you try threading wire through it? I think that would be less likely than bolts to fall out, and if it's properly tensioned, it could better spread the throughout the whole structure.
I'd say that was an unexpectedly good result! Solve the loose bolts and rounding, figure out a way to dampen the noise (sidewalls probably, even if they're mostly decorative in this case), and that should already be a pretty good tire.
Anyways.. I believe your design is much better take on the airless tire than Michelins idea using all rubber. Though, you could use a rubber coating on each of the pipes to absorb more of the vibration and impacts in the wheel itself. I also believe having a little lip on the outer diameter tread to the inside and outside of the tire pad would help with keeping the internal parts in while cornering as it'll dimple at the more force, keeping the inner wheel together more in unison. Like what you could had done was kept some of the sidewall of the tire you used as a part of the tire to keep the smaller light blue pipes from slipping out. I was surprised this set up held up at 100mph, and was able to take corners without falling apart, I mean aside from loosing a few nuts and bolts (could has used large rivets instead), you just had horrible vibrations probably due to the seam in the tread and no real dampening or balancing in the construction of the wheel. If there wasn't a seam and you really thought about balancing each wheel, it may had not been bad at all. And you probably could had went faster in that straight away. Whats crazy is that Michelin didn't come up with the initial design.. the original design was created in the 1930's was called the Elastic Tire. Similar idea of what Michelin is using now, but it has it's flaws as it gives away in corners and it's not rigid enough for highspeed cornering. Your design takes on a different perspective though, rather than using all rubber, just the tread itself is rubber, and the inside of the wheel is plastic and steel. Mind you that your wheels aren't really balanced, and there is a seam in the tire cap.. but overall you could improve this design and make it a pretty rigid tire and wheel if you put your mind to it.
This feels straight out of MythBusters. Good choice with using such a light car. But as soon as you mentioned drifting, you guys should have on some helmets.
The thermal load of the splines flexing per revolution will be a problem. Sacrificing the contact patch to solve it would be stupid. Airless rubber spline tires would probably handle side load better and more reliably than "air-ballon" tires. You need a stiff rim to not interfere with the brakes. I don't see any rubber hybrid rim handling that part, not even to mention the heat of the rotor.
Charming sound, the unsprung weight reduces as you drive, withstands your industry- standard bed of nails, immune to imperceptible potholes; what more could you ask for?
Honestly, if you can create a mechanism to keep the tread from swaying, and clean up the plastic areaa, thats a good design. You guys should make a bigger version and take it off roading
Potential improvement. Locktite. Glue (especially tread to pipe) Speed holes or strategic slitting of the pipe sections would allow them to deform more. Naturally w some loss of durability. Air/sound shields on the sides, which would also return more standard tyre aerodynamics. Possibly some structural improvement. Possibly a foam rubber to fill between pipe sections on the outer rim, then ground back as a balancing process, before tread laid over.
yes i drove a old cruiser and got a puncture and the tire separated from the rim and i completely lost control over the rear end, im lucky to still be alive.
Here's where the beginning of mass production falls on its face: Press release: due to a pandemic of shortages of blue and black pipe, nuts and bolts, we regret to inform you that we will not be able to fulfill your order for an indefinite period. Thank you for your patience.
What this proves is that different filaments on the 3-D printer for the actual tire concept is needed not just the same rubber filament for all the different tube positions. All nuts and bolts aside.., if they were to use different strengths of different filaments to make the different sizes of tubes in the concept 3D printed tire... it should work
If I remember correctly, an increase in 15db = 2x perceived volume...so you guys add 9db increase which is almost 1.5x noisier. Great test guys, made me smile!
High performance radial tires have their plies wrapped in a spiral manner creating a single seam that wraps itself around the entire circumference of the wheel rather than a single straight cut across the tread. Think of peeling an orange using a single cut without allowing it to break or even a corkscrew. Adhering the tread to the body of the wheel consistently and in a manner that resists both lateral and fore-aft force appears to be something you've already solved. You're almost there!
One improvement I can see pretty quickly would be to use some sort of PVC glue to hold everything together instead of bolts, also don't cut the thread and join it again, that's probably contributing quite a bit to the vibration and adding another possible point of failure...
2 things you could also try: 1. Weld everything together. It might hold together better than nuts and bolts. 2. Enclosing the tires would help with vibration.
Any tire can go over a bed of nails like that. It's an old trick, a dense "bed of nails" covers enough surface area to support the weight without puncturing. 4:12 you can see the tire appearing to float across the tips of the nails, not even coming close to the board in the area where there are nails. Had the nails fully punctured, the tire would have touched the board, especially considering the exposed parts of the nails were barely longer than the thickness of the rubber itself.
You can add plastic or rubber washers on the nuts and bolts to make them less affected by the vibrations and make them less likely to loosen up and fall off the tires, also will help with decreasing the noise of the tires an easy way to start the refinement of the tires which won't take a lot of time or money.
Tire tech has honestly become very developed. Tires are designed to flex to give a dynamic contact patch, and flex sideways a bit for slip angle. They also retain heat for sport driving because they hold the air in. These might be great to defeat spike strips from annoying cops….
my first thoughts were: you should cut a seam the width of the tire. if possible you should only cut off the walls and leave the tread part completely intact. it also could use some fill material between the rubber and tubes to make them more round. another issue that needs solving is the amount of bolts in them, maybe look for a way to produce the infill part in one piece, if that's even possible.
Try this instead: Testor Corp Cement Glue - Nothing beats a quality model cement for joining ABS plastic or polystyrene plastic, and Testor Corp’s Cement Gluemakes the job even easier, thanks to multiple precision tips that ensure accurate application. Toluene melts the plastic on application and polystyrene welds plastic objects together once the toluene reaction ends. It sets within a minute of application but begins reacting on contact: Be sure to place pieces correctly to avoid visibly melted plastic around the glued area. Note: Always use in a well-ventilated area due to the cement’s strong chemical smell. Also, cut the sidewalls off the tires, then heat them up and stretch them over the plastic tubes instead of cutting the treads.
Ok probably a dumb suggestion, but couldn't you just take a tire fill it with the pipes in the same way (maybe glue them instead of nuts and bolts so you could pile them without falling) so you could keep the sidewalls of the tire which might save weight without all the hardware (or as much if you did 1 in the center rather than 1 on each side), cut down on noise since the air wouldn't pass through them, and give you more stability side to side for drifting. Not sure it would be better but if you ever try a version 2 maybe it could work.
What many don't realize is that making an airless tire isn't that difficult, but making an airless tire that works in all climates is far more difficult. Very cold weather is the biggest issue as I understand it because it makes the components brittle and far less resilient. Heat also seems to pose a problem since it softens the components causing them to perform differently and they compress more than they should. But don't get me wrong, I am not disparaging this video because for a DIY project they did an amazing job. I am only pointing out the difficulties in making something like this for mass production. It's also my understanding that airless tires seem to wear out much faster than conventional tires due to the constant flexing and rebounding of the inner structures. I do think they are the way forward but they are going to require alot more development before they are truly viable against conventional tires.
Since the Michelin airless tyres i've wondered, in certain conditions. Wouldn't dirt and gravel get inside the tyre and cause balance problems on the long term?
Meanwhile GoodYear/Michelin take decades... kinda like asking Exxon/BP to build an EV. Maybe because perfecting an airless tire might just mean the end of their current business model. Imagine carbon fiber tubes and aviation grade bolts with safety wires (I am an aviation mechanic btw) and here we have an indefinite tire where all you need to change is the thread which can be made easy to replace too while at the same solid on the tubes with appropriate grooves or other methods. Even with simple plastic tubing you have demonstrated this whole concept to be viable.
I was incredibly convinced that the tread was going to come off immediately given that it was cut and wrapped around rather than stretched over but I was wrong. Well done!
Have you considered a hybrid design? Take a traditional air tire and put a airless tire support frame inside/attached, but allow it to be sealed and pressurized so it can smooth things out but the frame will give you the unique mechanical properties you want (different horizontal vs vertical compression) addionally you have backup incase puncture to keep going without complete failure.
That'd basically be a more complicated run-flat tyre. The main benefit of airless is not having to worry about losing air, in basically every other way they're worse. Adding an airless structure to the inside of a pneumatic tyre basically gives you the worst of both worlds. I feel like I've just brutally shot down your idea, wasn't intending to be at all harsh, honestly! It's a logical progression to think in those terms, but anything hybrid tends not to be as good at anything. As with run-flat tyres which are essentially that hybrid solution, some hybrid cars are fantastic, but the best possible version is worse than the best of pure EV or pure ICE. Thinking of ways to retain the benefits of pneumatic tyres is good though, that's how the major manufacturers end up spending millions trying to develop those benefits into basically exactly what these guys built here.
For the sound issue, i bet some sound deadening rubber coating on the pipes would do wonders, and possibly memory or insulation foam in the gaps as well
Surprised to see no one wearing helmets. Little physics? Those tiny nuts & bolts are ticking time bomb, a projectile waiting to be ejected loose in any direction at high speed...!
If they can be made cheaply maybe selling them as an option for spare tire or upgrading them for full out driving would be great like making the plastic parts one unit instead of separate tubes this would allow you to make it round this more stable could go way faster and then attached rubber on the outside could be one solid ring and the tread would be able to take more sideways pressures if it wasn’t flat totally but a small sidewall to enclose the innards not thick at all but it would eliminate air and last the same as it’s air having counterpart or even using a regular tire with a thinner sidewall having your idea for the tire on the inside to just eliminate the air aspect it will allow people to use them much longer and even start to retread the tires like they do big rigs making it cheaper in the long run the hardest part would be designing that circular structured plastic to be installed before and still able to put tire on rim or have the rim itself be able to be taken apart and reassembled so that you can build it opposite of the current process assemble the tread portion with your pipe parts inside the tread /sidewall unit and then assemble the rim part last the design of the inner rim would make it possible to utilize this on any vehicle as you could have options on each peice making it interchangeable for many reasons like custom colors shapes and technology that can be added to suit everyone and every vehicle the only real problem is designing the product in a way that makes it very inexpensive for you to make it and low enough for customers to justify changing from the regular rim to your product you could make the initial purchase at a much lower gross profit margin than the customized parts that are available this way the product will be available to lower income ppl that need a reliable option and the customer that has a large income and can afford to make a fully custom tire replacement is the one paying the higher margins for a unique product that is exclusive and would be charged as such but if the base model so to speak would be affordable and have multiple reasons that it is the sensible thing to do it would undeniably be competitive with regular tires and would have less rubber no air hopefully similar handling and price unless it’s cheaper and have a far superior lifetime on top of being retreadable but still appeal to younger and all other crowds for its price and options so the low rider guy could pick whitewalls the racer would get streetslicks with the lightweight additions the outdoor guy gets large truck all terrain options and gramma can get the basic model or that single mother with kids can afford to buy the basic version eventually opting for the matching color of the car on the inner setup when the kids get older and are ashamed of the boring rims this could be done even with todays tires and rims but these would be one wheel upon purchase unlike rims and tires but would have more peices that can be replaced for artistic or functional reasons one could do collaborations with fashion designers or anyone like rap stars tv stars etc etc etc and could offer new attachments when the current ones sales die down bringing and sustaining steady sales with endless unique variations and one off auctions artist designs for every big and small niche groups icould go on and on as you see but this idea is beyond good if someone takes it seriously and invests gets investors and a good team to perfect and create a functional product
diagonal pipes pointing inward, plastic weld them, use the tread as one piece, then add insulative material. could use tire patch cement to secure the tread to the wheel. cool idea
We put F1 tyres on my road car!
ua-cam.com/video/qHZ8rgWYNtA/v-deo.html
Dude that thing looks amazing with those f1 tyres
First video to see an airless tyre do a burnout.. congrats boys and girls
What this proves is that different filaments on the 3-D printer for the actual tire concept is needed not just the same rubber filament for all the different tube positions.
All nuts and bolts aside.., if they were to use different strengths of different filaments to make the different sizes of tubes in the concept 3D printed tire... it should work
Use a flexible spray foam to fill inside the pipes to dampen the sound and lock the nuts and bolts.
Speaking of “pot holes”, when repairing asphalt there is a heat pot that melts rubber to viscus enough to pump into cracks. I think using one of those to finish off the tire by filling all gaps, will be a way to actually manufacture these at a reasonable cost. You can use recycled tires to melt down to further reduce your costs.
If any of that helps save or make you money, I need a back hoe.
Good luck
This is so Old Top Gear I love it, the humour and everything so much like the testing of the Hammerhead Eagle i-Thrust, ambitious but rubbish-ish (as they were decent for 1st try tbh)
If you like this sort of stuff recommend CarThrottle. Also HatFilms who very rarely do car stuff they are very reminiscent of the classic Top Gear trio.
@@fsfaith I’ll check them out. Thanks!
Your username and profile pic don't match
Now we need a British Stig. Wait...
Yep, strong ambitious but rubbish vibes going on here 😂
Instead of nuts and bolts (which will invariably come loose with vibration) have you thought about tension cabling? Like using a steel cable woven through multiple peices of pipe and attached through the wheel rim. Then with wrapping the cable through multiple times before going through the wheel rim again, such that if it started to come loose, there would be a gradual degredation.
It would have just torn itself to bits ! Like a cheese slicer.
or easyer: glue?!?!?!?
You're about back to steel radial tires if you're doing that much cable weaving. The idea is trying something fundamentally different. A hot melt adhesive would be an interesting approach that resists vibration, provided surfaces are properly prepared and compatible.
Or just use lock tight on the threads...
@@a3r797 Yeah, but then good luck getting them off if you need to fix or adjust the tires lol
The most obvious conclusion from this video is that I need a Caterham.
That's always true.
Are you saying you didn’t know that BEFORE seeing this video? If so, sorry for you.
@@Nevir202 I’d rather get a slingshot
@@OVERDRIVE.studios you got this idea from the US military, and just changed the design A smidge
@@resenddelete6820 caterhams were first based on the lotus 7 though
I think we can all agree that the Caterham is just THE perfect test bench for projects like this.
Very entertaining, keep it up!
As a first test, that was ridiculously successful.
Thanks Paul! It surprised us too.
Extremely suprised with how rigid the wheels where!
Love projects like these. Yes it was vibrating like crazy but still.. it did what it was designed for!
This was honestly a job well executed guys. Wouldn't take much refinement to make them work honestly. And glad to see Scott back as well it's great woth you two together.
Reminds me of putting playing cards on bicycle wheel spokes . Live . Love it took me back 60 years. Thanks guys .
DON'T EVER GROW UP. JUST GET SMARTER.
GOD BLESS YOU.
In case you haven't considered it yet, some (probably most) of the noise and vibration is caused by the seam where the tread meets. If you could find a way to leave about an inch of sidewall on both sides and mount that on your design, the noise and vibration should be closer to regular tires.
Actually, I thought the whole process could be improved by gluing the "drain pipes" inside a regular tire, )shortened some to fit), and then letting the sidewall "skirt" the wheel. This does away with the tread seam, which is a weak spot, and the sidewalls would prevent the tread from wandering right and left when gripping the road. It would be challenging, but this DIY is very feasible.
The first job I ever has I use to retread tires. And the two ends shouldn't be connected by a straight flat cut. You make a long diagonal cut. It gives more surface area for adhesion and it won't deform.
@@JohnSmith-ft2tw fuckin oath I think you’re onto something
Also I'm sure these things aren't balanced in the slightest
@@zachsmith1731 That's easily fixed with a few more M6 bolts. lol
To me, all those bolts and nuts look like potential bullets when the car is traveling at high speed. 1200 bullets from tires alone.
A real killing machine ;)
this really brings back the top gear experiments vibe, hope you guys would do more like this
Amazing video! I'm hoping one day airless tires will be the norm.
I'm sure i'm not the first to point this out, but 99.5dB is WAY more than 2x louder than 90db. Assuming that your measurements were taken at the exact same distance in both scenarios, its roughly ~9 times louder (8.91 times louder to be more accurate).
With a standard reference sound intensity of 1E-12, the sound intensity values you end up comparing are .001 and .008912509 etc etc
5:20
UK: We have a lot of potholes.
India: That's cute
😂😂
😂
Uk: We have a lot of potholes
India: That's cute
Pakistan: That's super cute
@@Automobilestats
Uk: We have a lot of potholes
India: That's cute
Pakistan: That's super cute
Moon: That's Ultra cute
South Africa: we have only potholes, no road
Can you test acceleration and breaking compared to regular performance tires ? The usual principle is that air allows deformation required to get more (or optimal) adherence with the surface, more contact area. I'm curious about that principle since you need more rigidity in your concept to maintain integrity of the tire to lateral forces, it should adversly affect the contact area with the pavement. Let me know !
I guess with airless tire a softer rubber would be needed to make up for that? You can kinda see the lack of grip when they are driving around.
You should tell about this channel on driver61, i actually found this accidentally, it's so cool to see you 2 car friends having the fun of your life. I myslef can't wait to do car stuff when i growup 😀
Literally watched driver61 for like a year before I realized this channel was a thing
Literally just saw a post (from a few hours ago) and came here to watch this amusing video.
1:06 i died 😭😂🤣 also nice caterham
We've been using airless tyres in the outback for decades. If you get a flat and don't have a space, do a small cut into the sidewall of the flat and pack it with Spinifex grass until you can't squeeze anymore in. Will run for 1000's of km's and save you life.
And what do you seal the cut in the tire with? Will regular duct tape hold it?
@@MishraArtificer tape, rope, garbage bags, vines, whatever gets you home. (Wrap through the spokes and around the outside, not just along the side of the tire, even with the best tape, unless you can seal the inside like a solvent-based bike tire patch.) It just has to be enough to work until you can do better. If it fails, you repeat or try something else.
Why not use closed cell foam cores or solid tires, and softer shocks?
Honestly, when we are living in the post apocalyptic wasteland and new tyres are impossible to come by, this is gonna be one of the most useful videos on the internet.
5:10 you should see the road condition in India. It is basically offroad terrain compared to this
So you're saying you want a set?
Tru AF
@@jamesengland7461 well sets* because the amount of uhh lets say perfectly engineered potholes are astounding in India >
@@jamesengland7461 prabably when I have a driver's license XD
@@sriharidesai7606 True
When putting tread on a tire don't make it a straight flat cut. You need to make a 4 inch... or a 10cm diagonal cut on both ends. It provides more surface area for adhesion and it removes any deformation at the seam. You could make it longer than 10cm, it's just a good amount of surface area with minimal waste. And I'm totally going to try and make these lol. Awesome video.
Did you try red thread locker? Could help with the bolts coming apart
They were nylock, but we should try that.
@@OVERDRIVE.studios maybe also try use some assembly compound....orrrrr....to reduce weight and effects of rotational forces increasing the g-force and therefore the effective weight of the bolts, why not just try and stick them together with epoxy?
Maybe try pack out the outside of the wheel using space-foam held on to the piping with something like a tightly wrapped Kevlar sock before you put the tyre on?
ChrisFix liked that
@@yigithan3713 that's exactly where I got to know about this things years ago
May be cut the pipes in 2-3 sections and overlapping the position, so it won't be so bumpy?
Seems like a fantastic success for a 1st build. You're definitely on to something here. If you happen to do a revision maybe leave a little bit of sidewall as sort of a bracket to mitigate the tread from sliding sideways. Also if you can do it without cutting the tread and creating a seam I'm sure it would hold tighter. Either way that was a really nice idea and if I had the funds and tools I'd be trying to replicate this to apply to my normal daily driving.
3:26 As a Mythbuster would state, " ...well theres your problem."
I love this gents. Please keep up this great content.
Maybe consider putting that solution inside a tyre casing, then on the rim. That way it is all contained inside the casing, lessening the chances of it coming apart. It also means a continuous tread that’s not held together by screws. Any tyre could then be converted to make us of this.
Yeah that was my idea as well. It would then act as a large run flat ring. Dump some water beads in it instead of air. and you could still call it airless. lol would be heavy with water beads but would work. Also wondered why they didn't just cut the sidewalls out of a tire. that would leave a single tread ring to fit ultra snug(example you have to use heat to get it to fit. like a steel ring on a wagon wheel) . instead of a seam.
I'm suprised how well these worked, I was expecting catastrophic disaster almost immediately 😂😂
Suggestion. Here in the US, and I believe in most racing circuits, they have this thing called a "helmet". If you think your tire might come apart and start spraying nuts, blots, and tubing maybe you should invest in a couple helmets. Just a thought. Great video guys. Loved it.
Did you try threading wire through it? I think that would be less likely than bolts to fall out, and if it's properly tensioned, it could better spread the throughout the whole structure.
How would you make it less bumpy?
@@senordinkus more forgiving tubes held under tension in a more oval shape maybe?
@@zachmoyer1849 It'd look like a flower lol. I'm not an engineer, but it'd certainly be neat to see them do that.
@@senordinkus the lotus eleaf tire lol
I'd say that was an unexpectedly good result! Solve the loose bolts and rounding, figure out a way to dampen the noise (sidewalls probably, even if they're mostly decorative in this case), and that should already be a pretty good tire.
Me in Africa watching Scott call a road a pothole...🤣
You guys are on to something big... Thanks for the video
RSA!!!
Seriously. They didn't even go airborne. We have way worse pot holes in America.
Michigan feels your pain, friend. Ice and plows kill the best of roads.
watching this in middle of nowhere (somewhere in finland) our unpaved roads are literally pothole with yumps, that is sometimes used in rally.
Anyways.. I believe your design is much better take on the airless tire than Michelins idea using all rubber. Though, you could use a rubber coating on each of the pipes to absorb more of the vibration and impacts in the wheel itself. I also believe having a little lip on the outer diameter tread to the inside and outside of the tire pad would help with keeping the internal parts in while cornering as it'll dimple at the more force, keeping the inner wheel together more in unison. Like what you could had done was kept some of the sidewall of the tire you used as a part of the tire to keep the smaller light blue pipes from slipping out. I was surprised this set up held up at 100mph, and was able to take corners without falling apart, I mean aside from loosing a few nuts and bolts (could has used large rivets instead), you just had horrible vibrations probably due to the seam in the tread and no real dampening or balancing in the construction of the wheel. If there wasn't a seam and you really thought about balancing each wheel, it may had not been bad at all. And you probably could had went faster in that straight away. Whats crazy is that Michelin didn't come up with the initial design.. the original design was created in the 1930's was called the Elastic Tire. Similar idea of what Michelin is using now, but it has it's flaws as it gives away in corners and it's not rigid enough for highspeed cornering. Your design takes on a different perspective though, rather than using all rubber, just the tread itself is rubber, and the inside of the wheel is plastic and steel. Mind you that your wheels aren't really balanced, and there is a seam in the tire cap.. but overall you could improve this design and make it a pretty rigid tire and wheel if you put your mind to it.
This feels straight out of MythBusters. Good choice with using such a light car. But as soon as you mentioned drifting, you guys should have on some helmets.
The thermal load of the splines flexing per revolution will be a problem.
Sacrificing the contact patch to solve it would be stupid.
Airless rubber spline tires would probably handle side load better and more reliably than "air-ballon" tires.
You need a stiff rim to not interfere with the brakes.
I don't see any rubber hybrid rim handling that part, not even to mention the heat of the rotor.
Airless tyres are great, but they need sidewalls like normal tyres to look better and to prevent all kind of stuff getting into those holes.
Reinventing the wheel, I see
That is genuinely impressive! That's quality to hold up to that many RPM for any material let alone some cobbled together garden shed engineering!
Charming sound, the unsprung weight reduces as you drive, withstands your industry- standard bed of nails, immune to imperceptible potholes; what more could you ask for?
Mileage, these didn't last long enough. Needs more prototypes and design corrections but these did hold up well for the first attempt
LOVE THIS. feels like old top gear, and that’s the biggest compliment you can get. Classic.
Honestly, if you can create a mechanism to keep the tread from swaying, and clean up the plastic areaa, thats a good design. You guys should make a bigger version and take it off roading
just leave an inch of the sidewall and figure a way of getting them on without cutting them in half haha
Tread "sway" is part of tire design - the lateral forces present when it occurs is part of the reason it's taking so long for these to come to market.
Having a sidewall on each side instead of open sides would solve this.
I love the idea and the execution is perfect! Cheap and UNIQUE airless tyres!
Every 3 dB doubles the sound intensity so 9 dB more is 8 Times louder!
Just two lads having an absolute blast!
This was absolutely BRILLIANT!
Great fun! I just wish you'd made a longer episode on this :)
Keep it up!
Potential improvement.
Locktite.
Glue (especially tread to pipe)
Speed holes or strategic slitting of the pipe sections would allow them to deform more. Naturally w some loss of durability.
Air/sound shields on the sides, which would also return more standard tyre aerodynamics. Possibly some structural improvement.
Possibly a foam rubber to fill between pipe sections on the outer rim, then ground back as a balancing process, before tread laid over.
Would you put these on your car? I think with some work - these are *THE WAY FORWARD*
Yes. Many kilometers forward. More than can be counted on both hands.
You should do some timed laps and see what the difference is between a normal tire and these.
not literally this tyre but yeah any airless tyre prolly
@@sriharidesai7606 Nah
But sometimes I need to reverse...
I enjoy these videos for the sheer fun the boys are having playing with grown up toys.
This is really sick, I love this channel and seeing all your side projects. Keep them coming!
Considering this is literally homemade, a factory made version with a little improvement would be perfect! Great job guys!
These are so cool, and it would be pretty cool to see a set for motorcycles and dirt bikes🤩
that would be pretty dangerous.
yes i drove a old cruiser and got a puncture and the tire separated from the rim and i completely lost control over the rear end, im lucky to still be alive.
Geez that's incredible!! Well done guys!!!!
Here's where the beginning of mass production falls on its face:
Press release: due to a pandemic of shortages of blue and black pipe, nuts and bolts, we regret to inform you that we will not be able to fulfill your order for an indefinite period. Thank you for your patience.
What this proves is that different filaments on the 3-D printer for the actual tire concept is needed not just the same rubber filament for all the different tube positions.
All nuts and bolts aside.., if they were to use different strengths of different filaments to make the different sizes of tubes in the concept 3D printed tire... it should work
Brilliant fellas! great work!
Thank you, we loved making this.
@@OVERDRIVE.studios it shows, looks like your having a riot! 😊👍
If I remember correctly, an increase in 15db = 2x perceived volume...so you guys add 9db increase which is almost 1.5x noisier. Great test guys, made me smile!
These actually seem to be quite solid
Well liquid or gaseous tires wouldn't work, so they better be
You guys are awesome. It took me awhile before I realized that I had a permanent smile thru-out the video.
I think I'll stick to standard tyres unit they're perfected, good try
you need to devise a method to BALANCE the tires may be what takes out the shake shimmer and then the inevitable tire (( go boom))
Wear freaking helmeeeeet we want you for tomorrow as well
The next Caterham is having a windscreen at least!
High performance radial tires have their plies wrapped in a spiral manner creating a single seam that wraps itself around the entire circumference of the wheel rather than a single straight cut across the tread. Think of peeling an orange using a single cut without allowing it to break or even a corkscrew. Adhering the tread to the body of the wheel consistently and in a manner that resists both lateral and fore-aft force appears to be something you've already solved. You're almost there!
Those had no right to be so durable.....
One improvement I can see pretty quickly would be to use some sort of PVC glue to hold everything together instead of bolts, also don't cut the thread and join it again, that's probably contributing quite a bit to the vibration and adding another possible point of failure...
I like that these guys are engineering but they are totally just having fun. This has to be the best kind of job out there
A great idea, except in terms of aerodynamics and debris.
And expense. And reliability. And ride quality. And noise. And grip. And weight.
So, yeah. Nearly perfect!
But the unsprung weight decreases as speed increases, this is a great feature for performance!
It's just a rough prototype
2 things you could also try:
1. Weld everything together. It might hold together better than nuts and bolts.
2. Enclosing the tires would help with vibration.
Hi from South Africa - Just what I need for my garden zero turn lawn mower as I am fed up with punctures. Well done guys
For a first design those things did pretty good. Imagine if you could have a seamless tread and a balancing system
Any tire can go over a bed of nails like that. It's an old trick, a dense "bed of nails" covers enough surface area to support the weight without puncturing.
4:12 you can see the tire appearing to float across the tips of the nails, not even coming close to the board in the area where there are nails. Had the nails fully punctured, the tire would have touched the board, especially considering the exposed parts of the nails were barely longer than the thickness of the rubber itself.
You can add plastic or rubber washers on the nuts and bolts to make them less affected by the vibrations and make them less likely to loosen up and fall off the tires, also will help with decreasing the noise of the tires an easy way to start the refinement of the tires which won't take a lot of time or money.
The fact that it worked fine (other than those small problems) is impressive.
Mad respect to the Enginerd for not just making those but also going along for the maiden voyage 👍 Epic!
Tire tech has honestly become very developed. Tires are designed to flex to give a dynamic contact patch, and flex sideways a bit for slip angle. They also retain heat for sport driving because they hold the air in. These might be great to defeat spike strips from annoying cops….
im mostly impressed with how well the tread stayed attached to the whole thing.
Awesome video. Really wish to carry out such experiments
That's a great invention. If you perfect the durability this most definitely is the future
05:10 - you should see the brazilian roads....
my first thoughts were: you should cut a seam the width of the tire. if possible you should only cut off the walls and leave the tread part completely intact. it also could use some fill material between the rubber and tubes to make them more round. another issue that needs solving is the amount of bolts in them, maybe look for a way to produce the infill part in one piece, if that's even possible.
Try this instead:
Testor Corp Cement Glue - Nothing beats a quality model cement for joining ABS plastic or polystyrene plastic, and Testor Corp’s Cement Gluemakes the job even easier, thanks to multiple precision tips that ensure accurate application. Toluene melts the plastic on application and polystyrene welds plastic objects together once the toluene reaction ends. It sets within a minute of application but begins reacting on contact: Be sure to place pieces correctly to avoid visibly melted plastic around the glued area. Note: Always use in a well-ventilated area due to the cement’s strong chemical smell. Also, cut the sidewalls off the tires, then heat them up and stretch them over the plastic tubes instead of cutting the treads.
Also remember to balance them.
Michelin did it long ago ^^
Honestly for the price and engineering this is an astonishing success!
Ok probably a dumb suggestion, but couldn't you just take a tire fill it with the pipes in the same way (maybe glue them instead of nuts and bolts so you could pile them without falling) so you could keep the sidewalls of the tire which might save weight without all the hardware (or as much if you did 1 in the center rather than 1 on each side), cut down on noise since the air wouldn't pass through them, and give you more stability side to side for drifting. Not sure it would be better but if you ever try a version 2 maybe it could work.
What many don't realize is that making an airless tire isn't that difficult, but making an airless tire that works in all climates is far more difficult. Very cold weather is the biggest issue as I understand it because it makes the components brittle and far less resilient. Heat also seems to pose a problem since it softens the components causing them to perform differently and they compress more than they should. But don't get me wrong, I am not disparaging this video because for a DIY project they did an amazing job. I am only pointing out the difficulties in making something like this for mass production. It's also my understanding that airless tires seem to wear out much faster than conventional tires due to the constant flexing and rebounding of the inner structures. I do think they are the way forward but they are going to require alot more development before they are truly viable against conventional tires.
This was so cool..... cant wait for prototype V2. Closed cell foam? Aerosol filler foam? Would be really cool
Since the Michelin airless tyres i've wondered, in certain conditions. Wouldn't dirt and gravel get inside the tyre and cause balance problems on the long term?
Between mud, gravel, and water, and manufacturability, there is a reason why airless tires haven’t taken off.
Everything is fine in this video. And the car, and the wheels especially.))))
Meanwhile GoodYear/Michelin take decades... kinda like asking Exxon/BP to build an EV. Maybe because perfecting an airless tire might just mean the end of their current business model. Imagine carbon fiber tubes and aviation grade bolts with safety wires (I am an aviation mechanic btw) and here we have an indefinite tire where all you need to change is the thread which can be made easy to replace too while at the same solid on the tubes with appropriate grooves or other methods. Even with simple plastic tubing you have demonstrated this whole concept to be viable.
I was incredibly convinced that the tread was going to come off immediately given that it was cut and wrapped around rather than stretched over but I was wrong. Well done!
Michellen been real quiet since this dropped
Needed to use rivets. Looked like a lot of fun. Great video.
Have you considered a hybrid design? Take a traditional air tire and put a airless tire support frame inside/attached, but allow it to be sealed and pressurized so it can smooth things out but the frame will give you the unique mechanical properties you want (different horizontal vs vertical compression) addionally you have backup incase puncture to keep going without complete failure.
That'd basically be a more complicated run-flat tyre. The main benefit of airless is not having to worry about losing air, in basically every other way they're worse. Adding an airless structure to the inside of a pneumatic tyre basically gives you the worst of both worlds.
I feel like I've just brutally shot down your idea, wasn't intending to be at all harsh, honestly! It's a logical progression to think in those terms, but anything hybrid tends not to be as good at anything. As with run-flat tyres which are essentially that hybrid solution, some hybrid cars are fantastic, but the best possible version is worse than the best of pure EV or pure ICE.
Thinking of ways to retain the benefits of pneumatic tyres is good though, that's how the major manufacturers end up spending millions trying to develop those benefits into basically exactly what these guys built here.
this is genius. cant wait to see ur developement
You guys should make a V2 of the tires, fix some of the issues they have. I think this design actually has potential
That is epic crazy! Good Job!
This is wonderful!
Honestly I think a bit of sidewall would help with the sound, but definitely understand leaving it open for troubleshooting.
For the sound issue, i bet some sound deadening rubber coating on the pipes would do wonders, and possibly memory or insulation foam in the gaps as well
You are no more youtubers, you're designers , congrats !!!
Surprised to see no one wearing helmets. Little physics? Those tiny nuts & bolts are ticking time bomb, a projectile waiting to be ejected loose in any direction at high speed...!
If they can be made cheaply maybe selling them as an option for spare tire or upgrading them for full out driving would be great like making the plastic parts one unit instead of separate tubes this would allow you to make it round this more stable could go way faster and then attached rubber on the outside could be one solid ring and the tread would be able to take more sideways pressures if it wasn’t flat totally but a small sidewall to enclose the innards not thick at all but it would eliminate air and last the same as it’s air having counterpart or even using a regular tire with a thinner sidewall having your idea for the tire on the inside to just eliminate the air aspect it will allow people to use them much longer and even start to retread the tires like they do big rigs making it cheaper in the long run the hardest part would be designing that circular structured plastic to be installed before and still able to put tire on rim or have the rim itself be able to be taken apart and reassembled so that you can build it opposite of the current process assemble the tread portion with your pipe parts inside the tread /sidewall unit and then assemble the rim part last the design of the inner rim would make it possible to utilize this on any vehicle as you could have options on each peice making it interchangeable for many reasons like custom colors shapes and technology that can be added to suit everyone and every vehicle the only real problem is designing the product in a way that makes it very inexpensive for you to make it and low enough for customers to justify changing from the regular rim to your product you could make the initial purchase at a much lower gross profit margin than the customized parts that are available this way the product will be available to lower income ppl that need a reliable option and the customer that has a large income and can afford to make a fully custom tire replacement is the one paying the higher margins for a unique product that is exclusive and would be charged as such but if the base model so to speak would be affordable and have multiple reasons that it is the sensible thing to do it would undeniably be competitive with regular tires and would have less rubber no air hopefully similar handling and price unless it’s cheaper and have a far superior lifetime on top of being retreadable but still appeal to younger and all other crowds for its price and options so the low rider guy could pick whitewalls the racer would get streetslicks with the lightweight additions the outdoor guy gets large truck all terrain options and gramma can get the basic model or that single mother with kids can afford to buy the basic version eventually opting for the matching color of the car on the inner setup when the kids get older and are ashamed of the boring rims this could be done even with todays tires and rims but these would be one wheel upon purchase unlike rims and tires but would have more peices that can be replaced for artistic or functional reasons one could do collaborations with fashion designers or anyone like rap stars tv stars etc etc etc and could offer new attachments when the current ones sales die down bringing and sustaining steady sales with endless unique variations and one off auctions artist designs for every big and small niche groups icould go on and on as you see but this idea is beyond good if someone takes it seriously and invests gets investors and a good team to perfect and create a functional product
diagonal pipes pointing inward, plastic weld them, use the tread as one piece, then add insulative material. could use tire patch cement to secure the tread to the wheel. cool idea