I'm no engineer, but I think one of the main challenges might be the forces orthogonal to the 'rings' of the slinky that come into play when there's any acceleration. In a regular tire those forces would be handled by the tensile strength of the treads themselves, distributing the load across a wider area, but I don't know how that might be achieved with a frame with that structure. It looks like even static load bearing is challenged by what seems like a highly localized stresses on the part of the wheel making contact with the ground. Perhaps a material with sufficient capability for elastic deformation would allow more rings to make contact at once, mitigating that somewhat. And maybe a more tightly bonded concentric layer with low elasticity for the forces that sort of "shear" the contact surface from the axle? Not sure. Anyways cool project, hope you find success eventually!
I thought about making one for the SCX24, but it was really hard to find a slinky and rim combo that would fit. I may just design a fully 3d printed version.
Its likely just not possible currently to have good grip on the asfalt, especially lateral grip. Off road its probably fine but it would likely still lower the efficiency. This is pretty cool tho! For RC cars there could be a market for it.
well, as usual, you gotta diy the good/best stuff. market is just meh. well just put the slinkies inside a normal tire, instead of air. make sure the slinky is only used as the inner tire. not slinkies, try car springs.
great planning but framerate isnt pleasant, the channel name and the video settings arent matching, great voice and good planning but bad video framerate mde me lose interest
Hey thanks for the feedback! Interestingly enough one of my notes from editing this was to make sure everything was set to 30fps! Next video should take care of that.
Do they work on Earth? Sure. They would work fine if your goal is to autonomously survey harsh environments millions of miles from home at speeds up to oh what 1 mile per hour? I doubt the Mars rover is hittin' them dunes at speed. Rubber air-filled tires work better in almost every situation, except "autonomously surveying harsh environments very slowly while never being able to recover or repair the vehicle" - if you want your tires to never ever go flat and still be compliant to unyielding terrain, you might want a slinky tire.
What a hidden gem of a channel
11:13 That's not all down to material, but the moon has 1/6 of the gravity meaning they needed to hold a lot less peak loads.
With the effort that was put in to this, you deserve way more views!
I can't wait to see this channel get bigger, you earned my sub, keep it up!
This channel deserves to be far more popular than it is👍
Badass video, keep the content coming!!
Thanks for the kind words! We already have a few more builds in work.
I really enjoy your Videos! Super entertaining and fun to watch. Thanks! :-)
DAMN glad to find underrated channel
You can pick pecans with the first wheels
I'm no engineer, but I think one of the main challenges might be the forces orthogonal to the 'rings' of the slinky that come into play when there's any acceleration. In a regular tire those forces would be handled by the tensile strength of the treads themselves, distributing the load across a wider area, but I don't know how that might be achieved with a frame with that structure. It looks like even static load bearing is challenged by what seems like a highly localized stresses on the part of the wheel making contact with the ground.
Perhaps a material with sufficient capability for elastic deformation would allow more rings to make contact at once, mitigating that somewhat. And maybe a more tightly bonded concentric layer with low elasticity for the forces that sort of "shear" the contact surface from the axle? Not sure.
Anyways cool project, hope you find success eventually!
You need to put springs inside the slinky pointing outwards like shock absorbers then it will bounce back after deforming
I agree. The lunar rover tires had a circular bump stop that did exactly that. I will replicate that next time.
@EngineeringAfterHours awesome!! I'll be watching 🤩 hopefully i get first dibs riding shoutgun on Mars
I liked this one! I want to build some for my mini crawler
I thought about making one for the SCX24, but it was really hard to find a slinky and rim combo that would fit. I may just design a fully 3d printed version.
Its likely just not possible currently to have good grip on the asfalt, especially lateral grip. Off road its probably fine but it would likely still lower the efficiency.
This is pretty cool tho! For RC cars there could be a market for it.
1:14 the way you pronounce Veritaysium 😂
No need for nitnoll wire just need proper spring wire / music wire
Exactly and actually make it a good thickness, not same as on RC car 😆
scale is important, at that size you did nt even need pneumatics
5:00 -- you invented a tire! :). Did these things weigh less than a regular tire? I am looking for ways to reduce the weigh ot a MTB tire.
Broken spoke? where? 1:40
well, as usual, you gotta diy the good/best stuff. market is just meh. well just put the slinkies inside a normal tire, instead of air. make sure the slinky is only used as the inner tire. not slinkies, try car springs.
Yay!!! Slinky wheeeeeeeeeels!!!!
great planning but framerate isnt pleasant, the channel name and the video settings arent matching, great voice and good planning but bad video framerate mde me lose interest
Hey thanks for the feedback! Interestingly enough one of my notes from editing this was to make sure everything was set to 30fps! Next video should take care of that.
Do it!
bruh 4 mins ago
Do they work on Earth? Sure. They would work fine if your goal is to autonomously survey harsh environments millions of miles from home at speeds up to oh what 1 mile per hour? I doubt the Mars rover is hittin' them dunes at speed. Rubber air-filled tires work better in almost every situation, except "autonomously surveying harsh environments very slowly while never being able to recover or repair the vehicle" - if you want your tires to never ever go flat and still be compliant to unyielding terrain, you might want a slinky tire.
Haha...fully agreed. I can see some applications but it's basically what runflats are already designed for.
Never will get there
do :DDDDD