Overvolting DC-Motors. Testing your suggestions! Water, oil, gasoline, overloading & more! With RPM
HTML-код
- Опубликовано: 30 май 2024
- Testing your suggestions from my previous video • Overvolting DC-Motors ...
In this video I overvolt DC-motors while submerging them in deionized water, mineral oil, freeze spray, gasoline and more! Also some overloading with beautiful sparks and magic smoke. With RPM measurement.
I'm using a variac as my power source. 
Наука
My plan was to use the 3.7V 80k RPM screwdriver motor from my previous video, but for some reason it quickly shorted out in both water and oil (which made my variac smoke really bad)... So I went with this 6V generic motor instead which also contained a good amount of magic smoke :)
But now I have a bunch of electric screwdrivers, what should I do with them?
you could :
either just use them for projects
run them on AC and just destroy them in seconds
do more experiments
maybe theres more but this is what i came up with
try overloading a large 24 volt scooter motor
Can you put them in a vacuum chamber? Or a low pressure 100% nitrogen atmosphere?
@@TheOfficialDorianelevatorI put a 3V (or was it 4.5?) DC motor across 10VAC once. It didn’t even smoke it just vibrates for a second and then stopped. Either it screwed up the permanent magnet or it mechanically broke something inside the motor. It would be interesting to hit a motor with gradually increasing AC voltages in short bursts to see what breaks it without actually overheating.
As far as just frying it for the sake of frying it the best thing would be a 32A (or 50A if you have one!) 240V circuit, either directly across the motor or going through a 3 or 10kVA transformer that steps it down to 120V. No gradually inching up the volts just hit it full blast and a cycle or two later all hell will break loose.
@@deltab9768 running a DC motor on AC causes it to try to go in one direction, but AC current flips polarity 60 times per second in the US and a part of japan and 50 times per second in the rest of the world, so because of that, the motor then tries to go in the other direction as soon as the polarity flips, so since the polarity flips so fast, it wears down the motor and it ends up dying.
as for that idea of the no gradual voltage : it is clearly the fastest way to kill motors, obviously, so if he tries this, i would really like to see how fast they die LOL
Because I think it would interest some people here to know-
Almost every single automotive fuel pump is a brushed axial motor, and it is almost always submerged in the gasoline itself. If there is no oxygen, there’s no combustion. Everything needs an oxidizer. The gasoline provides great lubrication and cooling to the bearings and brushes!
Cheers, this was fun to watch!
Exactly. Gasoline as a fluid doesn't burn, it's vapours are what burns and hoo boy do they burn
6:45 is pretty much literally what happens when your fuel pump fails. The pump is basically an open-frame motor inside that circulates fuel through itself to stay cool. And it does make a mess out of the gasoline in the tank as it does here.
This is interesting as when submerged in fuel there is no fire risk. But there are circumstances where fuel pumps start fires. Fuel storage places have explosion proof pumps.
@@LawpickingLocksmith I would assume gasoline combusts only when ignited under pressure, not when exposed to fire.
@@Trex0Pol It needs a source of ignition such as a failing brush but also the right amount of oxygen.
I think it would makr more sense to use a brushless motor in thst situation
Gasoline by itself doesnt burn, vapors do, but only when they are mixed in correct proportions with oxygen
Nice video once again! In my opinion, the loaded motors and the one in gasoline showed the most impressive results. Thanks for your effort!
5:34 is my favourite I like it when the heat made the metal catch flames
I race a type of car where we still use brushed motors. When servicing a motor for a race the commutator is skimmed on a lathe and new brushes are installed. The brushes are radiused to size and shaped to the commutator. To bed them in to the commutator, the motor is left to run at a low voltage. It can take a good 10 mins to bed them in. However, a very fast method is available. That method is running the motor underwater. The same bedding in time can be under a minute when done underwater. It's so fast that I don't like to bed a motor in underwater as if I get my timing, even slightly off, I can find that the brushes have almost been completely run through and have no brushes left. The tell tale sign that the brushes have been eaten through is that the water will be black.
Awesome ❤. I used to do this with hobby motors and even brand new power tool motors! Have you noticed the extra overall power and torque when doing this method? Commutator is spotless and no rubbish inside the can? I have used my dewalt leaf blower to pump water on a jobsite so I can do my job and my leaf blower revs higher than any blower on site! Even the same dewalt blower! Lol. Nice to meet someone who does this method. I've had people say: you are going to stuff up your motors! Cheers from Australia 👍
Vacuum chamber and argon pressure vessel.
This was really fun! A lot of people are saying vacuum chamber, but that would be bad too... although, spectacular light show! I think under oil + vacuum might be the winner.. Oil to prevent arcs and conduct heat away, while vacuum to help keep it tightly surrounded by the oil. 🤔
I also knew I'd see a bunch of people saying liquid nitrogen. haha. I agree!
I'd try opposite, chamber with increased pressure might work to reduce arcing without additional load to the motor.
If anyone is wondering why the petrol/gasoline didnt catch fire when the motor was burning up inside; Liquid petrol isn't flammable, only the vapours that emit from it are flammable.
No, Liquid Petroleum IS flammable, it just isn't stoichiometric at ALL.
Liquid petrol is flammable, it just lacks oxygen inside the motor
He's still right though
If it's lithium battery it doesn't need oxygen
6:00 YAAAAAY mineral rain!
Absolutely epic.
put it in LN2 and try again!!!!!!!!!!! LN2 LN2 LN2
You mean #LN4
@@edinhofurtado2011 no buddy, i mean LN2 it's Liquide Nitrogen, mate
Liquid Nitrogen
@@gamerlowgraphics ahh, ok
4:54 that little flame disappearing was cool asf
It looked like it teleported into the 9th dimension
lol
Screaming rpm, smoke, fire, nasty noises, what could be better!!!!!!
This was absolutely fascinating
Very good content man, I had a lot of fun watching it :D
You sir make some good content 👌. Subscribed ❤😊
Try with liquid nitrogen
😮
😂😂😂😂
Superb commitment to the bit at 6:00
Thanks for the quality content! Try putting motor in oil in closed jar without air and access to it. I guess it should have much less bubbles in it so more heat transfer.
Holy moly! Look at thing runs in oil, it can go like crazy and without dying that easily
my new fave channel
Absolutely love the video with its own natural comedy, Thank you ❤
Dude I did the exact same thing to those motors when I was a kid😂😂👍🏿👍🏿
keep your nice work! Im giving subscribe.
With the plastic pulleys on the end of the motor, the sound I hear remind me of the time I was passing compressed air into a gyroscope, and it exploded in my hand. Would be cool to see something heavy and balanced on the end of the motor, spinning to the point of separation.
Glue on a DVD
I havnt smiled this much in a while.
Yay! We did it! Summer is here! I’m congratulating you! Also, Cskirt, when arrive Furby Connect? I can’t wait to see next episode of Overvolting toys!
It has arrived, it won't be in the next one (today), but probably in the one after
Nice , i like it , please do more dc motor extreme test like this👍👍, i already subscribed your channel👍
The first mineral oil experiment is one of the coolest things I’ve ever seen. This is the best channel on RUclips 🙌🏻
Me Tryna get a peaceful night sleep:
The fly in my room at 3am:
You forgot to put a match to the hydrogen and oxygen mixture that was formed from electrolysis of the water, that would have been funny to see that go pop. Another idea is to put a candle nearby so the flame goes long as it burns the gases at the same time that the motors fizzes and roasts. Quite funny how the liquid was able to absorb the magic smoke from the motor. How about spraying the commutator of a motor with butane gas whilst running? The liquid should cool the commutator so you can put more volts and amps on the motor without releasing the magic smoke but there is a fair chance that the butane might catch fire and roast the motor.
Boom!
Time for brushless motors!
This is great I couldn't believe the RPMs on some of those motors. It really makes me want to go do this myself and make a video! One thing I would do differently is find some way to have a controlled load rather than just pliers on the shaft, something like a motor dyno that could actually measure max torque and HP. Also would be fun to see BLDC motors driven to failure.
Yeah I started working on a "real" load that could be measured. But it quickly became way too complicated and unreliable for this video. Maybe I'll make another more dedicated to loads in the future.
I'm working on a BLDC video, but it's not as simple as turning up the voltage from my variac, I've spent way too many hours (and cash) on this with custom controllers and different powersources, I'll probably be done with it next week
THANKS FOR MENTION! :)
The freeze spray boom😮😮😮😮
Salvajor and a few pump manufacturers use sealed oil
transfer water hybrid systems (motor- heatsink- hestsink-water flow plate/hopper housing)
Use hydrogen fluid.
In fact, if you install an excellent cooling system for any engine in the world, the resistance of the wires will become zero, as in the coils of a bullet train, they cool the coils with liquid helium, whose temperature is 270 degrees Celsius, close to absolute zero. With no wire resistance, the amount of power required to rotate the motor at the same speed decreases without cooling.
Motors break down due to an electrical short that occurs when the temperature of the wires that are coated with insulating enamel rises, as they can withstand a temperature of 110 degrees Celsius before melting and the wires become partially exposed.
Hope you see my comment 😅
hey you can use liquid helium to cool down the motor i think that would help because liquids have viscosity which slows down the motor but liquid helium have very less viscosity
Really enjoyed it
Overload one looked something straight out of a anime power up 😮😮
thank you
Random youtuber overloading motors and overspeeding them.
Boys: Hell yeah😀
There's two constants with motors. kT and kV. kT is the ratio of amps to shaft torque at a stall, and kV is the ratio of RPM to no-load torque. If you multiply them together you get a constant, because more RPMs means more windings which means less current can flow in them. Most of the big hobby RC motors we run at 7, 12, 14 or more volts were built to run on 2-3V in portable cassette players. Just for much longer.
There's really no "overvoltage"... just how long the brushes last. But you always reach a point where the magnetic field in the windings can't change faster than the rotation of the shaft, and the motor gets locked into a fixed speed. Any acceleration causes torque in the reverse direction from the field current flowing thru the commutator arc. This is where brushless motors start to excel because you can change the commutation sequence to stay ahead of the shaft rotation.
But then you don't get to break in your new motors in gasoline. :)
haha! I seen my commment! Glad you trued it! I think what's happening is the motors just becoming a dead short at a certain voltage. Since the motor windings are a continuous winding that's theoretically a "dead short" since the motor wire windings are so small they can only handle so much voltage before it turns it's self i to a welder.
My comments:
0:29 = An average lightning in an hurricane.
1:20 = An average nuclear reactor.
2:30 = An average day in Dubai.
3:35 = An average electric stove that bursts blue flames.
4:20 = An average night in an scientist dorm room.
5:30 = An average sparklers in 4th of July.
6:20 = An average 20$ dishwasher.
7:00 = An average kids smoke bomb.
7:25 = An average guy reviewing an item that they got from their sponsor.
Throw an egg and you will have mayonnaise.
make more content like this 👍🏻
Try synthetic motor oil, use the thinnest viscosity, perhaps it can prolong the commutator and brush
When my phone speaker vibrates
Motor feels in my hand😂😂😅
Ты можешь поместить мотор в ёмкость с жидким маслом или бензином и закачать туда избыточное давление воздуха. Это будет препятствовать возникновению токопроводящей плазмы, и моторчики смогут дольше оставаться живыми.
Awesome
Childhood dream satisfied in single video now I'm not gonna teardown the car and give high voltage to see what happens (my bois call me scientist 🤣)
do you have some high rpm dc motors? i would like to see with fan blade to it and goes crazy!🤣
4:32
The fire's so pretty
I think you should source some treadmill motors. 90-100V DC and I think with the right applied voltage it may just spin fast enough to rapidly disassemble itself. Thinking maybe like 20x12v 100ah deep cycle batteries.
Wow cool❤
My prediction (before watching the completion of the water cooled test) is that the permanent magnets will be de magnetized/remagnetized in the wrong places before the windings or contacts fail.
The liquids will provide friction, meaning you will get to much higher current flow, heat dissipation, and supply voltage before reaching a given speed/back EMF.
If this was a normal mechanical load on the driveshaft the windings would burn but because it’s also acting as a coolant the magnets will just lose their field.
Overload look the best
Liquid nitrogen or acetone dry ice bath next pls ? ❤
It makes ac frequency when it shorted
Tente na proxima vez trocar o cobre da bobina, por um cobre mais expesso, teste no álcool 70. Deve dar um efeito massa 🔥
Cool 😎
5:55
this is my kingdom come
can you overvolt brushless dc motors next?
Try brushless DC motors to aviod the commutator problem and use car coolant this time or chiller with chilled water
I couldnt stop laughing at the noises
How about (liquid) CO2 as coolant? Doesn't explode or burn and is really really cold. You could also cold-soak the motor beforehand.
Very fun vid but is that thing copper inside the motor?😊😊
Arcing freeze spray, watch out for carbonyl fluoride, it’s very much like phosgene…
Alcohol and graphite mixture would be cool to see. You got the cooling and lubrication? Unless the graphite causes a short...Just a thought!
i think the reason theat tha arcs from overvoaltage heats up the magnets and overheating magnets looses its magentic filed. and that filed is nesscary for the motor to spin. so it just stop spinning
What about coolant?
Im a big fan of your methods 😅
Nice video! Now put ice in the water.
Quiero ver más de esto
better question is where did u get that DC power supply from?
use under liquid nitrogen
or in a vacuum
Would be cool to see a brushless motor
You can over load the 3 phase AC Motor?😊
Dang bro what power supply are you using?
Oil, which I thought was a valid contender, ended up in mayonnaise and the motor failed even more catastrophically ☺
that motor used... i have the same one, but it has extreme bearing failure, so i cant really stress test it.
tho, here is a suggestion : what happens if you smash the motor while its running with a hammer or something like that ? bending the housing might break the bearing and make fun effects but i dont know.
It will seize and burn up. It’s similar to what happened when he overloaded the shaft by gripping it in pliers.
@@deltab9768 its gonna be similar but if the housing is bent first then it may not just seize up immediatly, and it might just as well grind on the walls before eventually burning up and seizing.
Please try putting the motor in a vacuum, sulfur hexafluoride or a pile of dry ice.
How about in liquid diesel?
we should do it with propeller on it
What power supply do you use that can output 300V dc?!
do you proper wire the amp ?
Sounds like a Audi Quattro's Engine!
Lightning underwater!
2:48 dude made soap
I would like to see these experiments done on a brushless motor instead
Please try brushless motor
Next, use 3 in 1 motor lubricant
2:35 Add a pair of eggs. I think it's a good way for making mayonnaise.
Try doing it inside a vacuum chamber
Please try with liquid nitrogen, nitrogen gas and vacuum chamber
White Smoke!!
Also has Black Smoke.
I think you should try glycerin!👍
It would be better for test under load to build some sort of small dyno for consistent results and maybe even variable load setting.
That could be quite complex to set up.
My guess is if the load is too high, it overheats as seen in the video. If load and current are near normal and voltage/speed are too high it runs for 10’s of minutes or even hours and then the bearings or commutators fail.
Shlawg was activating his final form at 1:23
I'm still waiting for you to apply High voltage to a Tomy 2004 Laa-Laa toy that has a scrolling tummy and plays music.