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Schematic

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>>16916529
I will not have the steel backing, but I think that only boosts the effect. Here a guy is demonstrating the shape of the stator on his linear induction motor. For that I was thinking of layering aluminum foil and paper, mashing it between 2 wooden blocks, cut the shape oversize in height, drill holes in it spaced the way I want the coils, then cut it straight across so it takes off the top 1/4 of all the holes. Cheaper than having someone cut all the plates.

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I was hoping to have something rolling and motor driven tonight but this is how far I got. I have an Aluminum flat bar, 8"x1.5"x.125". I have an old armature with 10 neodymium magnets arranged alternating. The effect has a very short range so the gap needs to be tight. I can spin the bar with and without the aluminum and see the effect of magnetic braking. I can also slide the wooden blocks and get the armature to spin. Tomorrow I will motorized this and see if I can generate the needed thrust.

>>16916529
Why would radial force develop? Am I getting something wrong when I am thinking of the FBI?

>>16916543
if you remove the iron, you lose the induction, aluminum is a bad conductor of electricity so magnetic flux won't even form, iron or copper is essential to establish magnetic flux and hence induce current, why exactly do you need weight reduction when the stator or rotor can be fixed in place?

>>16916844
>aluminum is a bad conductor of electricity
The utter state of /sci/

>>16916864
aluminum foil compared to a block of iron, yes, what's your point pseud or are you just addicted to nitpicking without offering any meaningful input

>>16916868
Ferromagnetism vs electromagnetic induction. Aluminum isn’t a good conductor. It’s a literal shit tier conductor at 60% higher resistance compared to copper, but damn it’s cheap. It’s used everywhere.

>>16916844
This is not correct.

>>16916958
just use this setup >>16916532 , you can't bypass iron with aluminum if you want to establish a stable magnetic flux--the other pole to your electromagnet, and you can use the aluminum on top to improve current flow

>>16916982
I thought he was gonna try to float with or use a halbach as a motor or in combination with some other type of array. Not really sure.

>>16916989
yes you can construct some structure akin to a squirrel cage stator, but you can't do it with foil or wood--lmao, you need some solid plate, magnetic permeability--and iron has the best-- is very important here

>>16917031
(turns out Bolsa, wood and aluminum foil are the key to hover cars)

based af thread, monitoring

>>16917031
Thank you I was wondering about that. Full disclosure this is going to be to cheat at a pinewood derby race on an aluminum track, and double as my kids science fair project. Im limited to 5oz with block, wheels, axles and all components. Thank you all for the advice and I will keep you updated.

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Works!

>>16917548
you switched to permanent magnets, so now you can't control the speed or direction, but i guess it works for your humble usecase

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>>16917548
I simply don't believe this. Where is the radial force coming from?
Just to be clear: you have some permanent magnets being rotated by a separate motor(a pull string here right?) along the drive shaft and that the magnets rotating over the aluminum causes the propulsion?
I am supposed to believe this is generating some kind of sympathetic magnetic dynamo in the aluminum pulling the cart forward?
This is unironically the meme

>>16917548
based yung tesla

>>16917598
I believe it is using the lenz effect for propulsion and the magnet wheel creates a series of invisible magnetic gears between the wheel and the flatbar.

>>16916529
Yes you need a very small air gap.

Also, generally Related technology application here -
https://magnadrive.com/

>>16916529
Well I just did a math equation that made me slam on the brakes.
1.25" max wheel diameter
3.93" max wheel circumference
1000 RPM assuming I can reach it
3930 "/min
235800 "/h
3.72 mph

The cars are traveling much faster than this down the ramp. For me to hit my goal speed I would need to be spinning the wheel at 11k rpm. I dont think that will be possible.

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>>16918244
Reviewed the rules and there is no restriction on height. If I can fit a 4 inch wheel I might just pull it off. I can either mount a DC motor into the middle of the magnet wheel, or create my own motor with the commutator on the side of the wheel timed perfectly with the magnets on the outside.
Thoughts?

>>16917548
https://www.youtube.com/watch?v=CtwJvgPJ9xw

>>16918334
Haha, me and my friends flipped my car once and as it sat there upside down, that's the song that was playing.

>>16918374
top kek

>>16917548
can you explain how that works? I can understand that
>variation of magnetic field causes variation of the electric field
but, what else is going on there? what I think I'm seeing there is that some electric current is somehow stored somewhere and then it gets released
and yes, my understanding of the field is very basic, sorry

>>16918407
Using the aluminums resistance to the motion of a magnet to drive the car forward. No electricity is used in the gif, more a proof of concept. I could buy an outrunner motor and make it work tomorrow, but I dont think that will get me to my goal of 100mph.

>>169187
I'll review the material you posted and try to comprehend, spunds super fun

>>16919764
meant for
>>16918751

>>16917548
id genuinely be surprised if there isn't a virus in this, anon literally why did you do this?

the gif isnt even close to max file size....

this whole thread is so retarded and bot sounding, RIP /sci/, 2020 truly ended this board

so there's no electricity involved here, just a magnet magneting? I don't get it

>>16917598
Which one of Newtons Laws is violation?

>>16916529
What if instead of eddy current, it was Ed, Edd, n Eddy current?

bumping cause above average thread, even though I don't understand how shit works