Wind-Up Car Experiments - Metal Springs!
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- Опубликовано: 12 окт 2020
- Can you build a full size car? That's the question. To reach the answer, we're doing a few experiments. This time it's all about metal springs - expansion, leaf, compression, flat strip, torsion...
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Super cool. I don't think I saw the first one. I must go look for it now.
Excellent Video and Very Well Explained
I just came up with the idea and it feels great that you already tried out something similar.
you are smart you are the formula for many problems
You made me chuckle especially the clockwork chariot
I could watch these videos every day
Toy shop Tim's trial and error terror!
I guess this is another instance of the square-cube law? Probably the strength of the spring goes up with the thickness of the wire, which is the square of the 'scale', but the weight of the springs goes up with volume of the metal, which is the cube of the scale. So as you get bigger, weight grows faster than strength.
I suspect you're right, but I don't know for sure
Oh I loved thetiming at the end! Excellently done!
"Stay tuned!" *spring device violently rips itself apart*
(also thanks for the slow mo!
Glad you enjoyed it!
I really like the string and bobbin design. You could set a leaf spring upright like a fishing pole and have your strings extending from the tip to some wooden base.
I was thinking a pair of them, fixed at one end and drawn together at the other might be neat too?
Great fun. I have no suggestions whatsoever.
Can’t wait to see what you come up with?
Frank
You and me both!
Fantastic finale!
How exciting to have a big one of those under the bonnet of the car!!
What you have there is a machine for randomly generating trips to hospital.
Ha!
You should look at the "mouse trap car challenge" which would really give you even more ideas ! Just great ideas !
Oh wow! That was amazing. My Dad was a bit of a mad scientist, tweaker of sailboats and electrical doodads. I wish he was still alive so I could share your videos with him! We could have a pretty good chuckle I think. Onwards and upwards then. I can’t wait til next time.
That last shot is just about perfect!!! :D ... I'm going to predict we'll end up with a combination of the various formats
A mechanism similar to bicycles could help. Maybe attached to a secure rotor.
Our family loves you guys !
Hi guys!
Look into the system that mouse trap cars use. You use a spring and lever arm to generate your force.
A rod down the middle of the torsion spring would help keep it stable (kinda like a garage door lift spring)
Why not try a mainspring, as in a watch? They are designed for rotational energy.
Did you watch the video?
@@grantofat6438 Yep. No mainspring.
You had lift off there, I seen it!
It looks like you invented a green helicopter! That thing wanted to fly. Keep it up!
Large ‘clock type’ or shutter springs allow for quite a lot of energy to be stored. Due to available material 3mm x 50mm is about as large as they go. 30 revolutions is about maximum, could be geared.
Fun! What about pneumatic energy storage? They have those cute kid boats powered by balloons. I suppose there are many ways to use that kind of potential energy...
Heck yeah! And if they have a stream or something, they could even use a trompe, which is a water powered air compressor. They’re not used anymore, but they were more common before electricity became widespread
How about using a few of the long up and over garage door springs.
Ouch!
Toy Shop Tim's trial and error terror!
awsome closeing scean yup . um im on the same quest .been looking at clocks and submerine torpedo gidance gyrows
What about compressed air? Perhaps it's been suggested already. Good energy storage.
Compressed air could work,, I'm sure. But winding up the pressure? I'm not sure how I'd do that - any ideas?
I was thinking that one of those self propelled train cars might be more of the idea to look at. the biggest thing there is making it work without the tracks. wikipedia says it was known as a pump trolley or velocipede. it would seem to me that this idea would be more of what you are looking for, but how well it would work on rough ground or paved roads is beyond me.
Last frame- Tim starts work on a short flight helicopter. 😂
You can use compressed air. I imagine if you find kind gas can be liquefied under ambient temp can store even more energy. However, I do not expect you to find better than electric motor and battery. I am sure you can find way to resource them for free ;-) . Or you might salvage broken electric bicycle or scooter. Subject of storing energy is a big one and associated with utilizing solar energy . you can find a lot of literature.
sadly "air powered cars" do already exist.
I see the fun in using "real springs" in scaled up versions of the toy cars like we see in some cartoons or comics.
You should look at an antique Victrola record player. They use a spring and a weighted spinning device to keep the spring from unwinding too fast and it allows the turntable to spin at a constant speed of 78 revolutions per minute. Or you could use the spring to pressurized hydrolic fluid and use that to power the vehicle.
Thank you. I'd be interested to see the regulator, but there are many different Victrolas and I couldn't find the one you mean
@@WayOutWestx2 Hi, the victrola is a VVXI You can find out all about the governor unit at the youtube channel Dyslexic Genius Hurt. I hope that is helpful. God bless.
Your spring box exploded. Try again (Y/N): _ haha yep theres a lot of power in stored energy. Perhaps wood is not the best for storing all that pent up energy. An alarm clock contains some pretty powerul flat spiral spring and they don't explode to bits once wound.... ;)
A constant force spring would have the best chance at working - if you can get a hold of one big enough.
Compressed gas / Diaphram / Fluid - fluid into motor! capture fluid, recycle - hand pump :)
High pressure for this application, though, I suspect?
@@WayOutWestx2 Not sure,, I was thinking if it was more medium pressure, the tank becomes the car frame as it were..... I watched an old documentary from Bath about compressed air motor powered bikes years ago (useless they were), you get more from a liquid as it is denser. You can get nitrogen bladders for house fresh water system - 2 bars and about 30 liters.....
A car is manufactured using compressed gas in india
Compressed air would be more efficient. A couple of old oxygen tanks pumped to 300bar(4000psi) should do it. Could be a little dangerous. And how to convert to rotation cheaply?
A French company tried to commercialize a car run on compressed air
I think tried is the key word here!
So the spring in a toy car that one winds up could not be duplicated in a car? Same idea but just on a bigger scale?
There’s this thing called lithium! I’ve heard it works quite well 😉
i, too, enjoy carrying around lots of little water-activated bombs.
Too easy, Dave : - )
Please don't hurt yourself Tim.
I was thinking that too!
How about a roller shutter door spring.... Apart from it being pretty dangerous.
they're not common here at all, but I'll try to find one
Stay tuned next time for more "Fun With Springs!"
Gramaphone springs maybe? I took one apart once...nearly died.
flywheel next?
flywheel plus compressed air, yes
Great stuff! Is it possible to buy these old style spring toys nowadays?
Now Tim, hear me out, Put the upper bathtub (from the two bathtubs idea) on springs, that way you can vary how you release the energy through the pipe against the energy stored in the springs. By letting the water out slowly you can regulate how fast the car goes! And because it is a bath it can be considered clean transport.
It’s also a waster powered car. Very green.
Sounds like a lot of weight to carry about
You'd have to baffle the water in tanks, otherwise you'd slosh on turns and tip over. But you'd be in the bath, so you'd be just in a water slide. :-)
He so I want to do something very similar to this. But my energy needs are far less. I don't need to move a vehicle juat charge batteries. I want the excess energy I get from my solar panels to turn a motor that loads the spring. Maybe if I got a large clock spring?. I'm sure its possible to do.
One big problem with stored energy in springs is its extremely dangerous in the event of a failure.
See: garage doors!
So is driving around with a tank full of gasoline... :-)
DaVinci already designed a wind-up vehicle in the 16th century. Maybe you can take some ideas from him
I think you know this is going nowhere, Tim, but I love the way it's exercising your mind - and the Health & Safety Executive!
Well now, I suspect there are a couple of mechanisms that might work, but we haven't got to them yet.
The weight might not work because it's really hard to find giant wood planes.
Tim, I think you are just thinking up ways to kill boxes....
That made me laugh-snort
Elon needs to hear about this.....
Is this a wind up?
Ha!
Power to weight ratios etc and other forces....theres a reason these spring ideas will never ever work except for maybe propelling a mouse in a matchbox car a few metres at most...internal combustion engines of one sort or another havent dominated the planet for no reason !...
Burning fossil fuels is like using single-use batteries. We had them so we used them - and that's why development on alternatives stopped for 100 years. That doesn't mean the alternatives aren't valid too, though.
Stick a computer in that last one and you might get Tesla interested.