1870 The Twisted Serpent As A Motor
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- čas přidán 17. 03. 2023
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Wish I had you as a teacher when I was at school 😁
No kidding! Never too late to learn stuff though
wow - cheers mate
no joke, someone who can not only explain concepts well, but can show their practical application with parts from an IT scrap bin.
You are at school, life is all about learning
@@DMWatchesCZcams yes indeed life long learning
Awesome as usual!, thanks again Robert.
Great Work Earth Fella
Bless Up
cheers mate
Love the serpentine coil setup. Looks very clean. Thank you for your video.
cheers mate
Hi Robert I’m new to your channel and I love it, I’ve been trying to design a water wheel to produce power but with out a river to draw water from, I’ve just bought a 3d printer and when I’ve worked that out, I’m going to try to build a water wheel using the twisted serpent, thanks for all you do, keep it up
The hard part for a human is that the timing changes as the speed of the motor changes. Having done similar in the past, that's the most difficult thing to wrap your head around.
I think you are right, and as the rotation speed increases, the pulse duration would need to get shorter and advanced until it couldn't be done anymore. A calculated pulse skipping might work for higher speeds but with lower torque? I think thats why most electric motors are made for one set working speed. It would take a computer and a rpm light to sort out all the pulses at different speeds.
I don't think as a generator it would have any problem like that.
it does take a little practice lol
Use Reed switch Luke
Love your videos. You are the best super hero of this century
wow - cheers mate
I like how you are always happy like a child. ;D
lol - what's not to be happy about?
@@ThinkingandTinkering
Thanks once more, Robert.
cheers mate
Brilliant explanation Robert, thanks for sharing 👍
Glad you enjoyed it
Robert, could you print a stator that extends over the outside of the coil and add magnets to it? I'm curious if sandwiching the coil with magnets on both sides would increase performance without adding much complexity or cost. Thanks for all you do 🙂 love your work!
It absolutely would. Backing both sets of magnets with a strip of steel banding would be better still.
@@whatelseison8970 Oh hey 🙂Thanks for the reply! Do you mean like one continuous strip? Or like individual strips? Also, would you be so kind as to explain what that does to help? I'm trying to learn 😅
@@Unpopular_0pinion Steel backing confines the stray magnetic fields, that are dispersed on the "wrong side" of the magnets, so that the fields facing the coil get boosted.
@@sleeptyper Thank you! 🙂
you absolutely could do that mate - but magnets are expensive - 3.60 in this model and wire is cheap 35 pence in this model
Your twisted serpent winding is fascinating. I always thought that a "coil" had to be multiple concentric windings, but your assertion that its the length of the winding that counts is mind blowing. Have you compared like for like? (apologies if Ive missed it) - it is so much easier to make your serpent winding and offers many more possibilities that it could be revolutionary. What about a much deeper winding with multiple rows of magnets?
The Imhotep Bedini PC fan is interesting in this regard. No need for hall effect / reed switch.
The inductive "spike" or "archform collapse" is itself the trigger for base/gate.
It produces some 50v in back EMF from 12v input which is really cool. Charges another battery, as well as moves air.
Another interesting motor is the Tiny generator shared by Patrick Kelly.
It uses just one coil for propulsion, achieving the same flyback generation.
Which can then be converted. Many people are currently investigating this effect (and have been for a while now.)
It would appear that "motors are generators and visa versa" is not quite so simple as may be presumed, as some can do both at once.
Thanks for the video Rob, Keep 'em coming.
cheers mate
Nice!
Thank you Robert you are BIG 👍👍👍👍😘
wow - cheers mate
With a sensor, the idea of a single phase AC motor with one coil would be really cool
for sure
Like to see a reed switch for timing. Especially with three coils.
a reed switch is cool mate but not the best - it's one step up from what I did by hand
Top of morning great video
Alexa, tell Mr. Murray-Smith that I like his videos!
lol - a man of the new millennium I see lol
Nice, really a cool looking coil.
Thank you! Cheers!
Very informative. And Rob was playing the role of the Human Commutator. Bring on Paul McCartney and "Magneto and Titanium Man" .
lol cheers mate
So excited to watch this 🍿
cheers mate
Impressive👍 Even if someone else does it, you should too and make a video😁
Brilliant mate
cheers mate
Great info takes away the guess work😁
Glad it was helpful!
awesome stuff, didnt realise it would do that!
cheers mate
If you feed this motor AC, it will run as a synchronous motor, the downside of those is the lack of torque as if it stalls more than a given angle, it will just vibrate.
How do you even do this? Put out all this cutting edge free outsource information, crank out these prototypes and field all these comments! I was curious about DIY battery technology and I was able to find the subject in your archives fairly quickly. E-bike hubs from failed wheels can be an easy to find generator if you get the three phases converter. Nowadays there are so many power generation alternatives that didn't exist 20 years ago (economicly), but the energy storage is the sticking point. For home or railway storage it can be dense and heavy, but for nomadic or flight use it must be lightweight. The serpentine and circumfrence generators are amazing. I've heard of glass batteries that improve with age to a point and super capacitors, but they are beyond my understanding.
lol - I do work a lot mate - we have done a ton on storage - I will say this electrochemical batteries of the kind you are thinking about are stunningly easy to make in ones and twos and stunning difficult to make a lot of
400hz frequency is used for the controllers, a relay circuit will work aswell,something simple... Make three phase with an inductors and capacitor.
Thank you for posting this video! Did I understand you correctly at the end that you will show how to create a 3-phase serpent generator/motor?
You can also do three phase serpent coil by using 3 sets of tangled wires. Just set it through every third point. You might get it more officiant with that older side coil design and using coils on both sides of the magnets. Bifilar coils would be even better ;)
yep
Could you try the magnets in halbach array? There is not much documentation about those with generators on CZcams.
I really like your experiments here, but one issue you might change to make a difference in efficiency/power output is to give your magnets something to direct their field fully across your windings. At the moment, the n/s placing encourages the fields to form shallow arcs from one pole to the next. Since you are using very strong magnets, even though the field lines don’t extend very far, you still get good results but you might change your setup so there is a good pole opposite the magnet for the field to cross over to. By putting more space between the magnets, and an opposing pole piece closer than the next magnet with the winding in between, you can get the field to cut fully across the winding. You could think of it like a “keeper” on a magnet but with a gap for the winding.
The closer you space your magnets, the less distance the field reaches out to.
yep you are right
I surface grind thin steel reeds for concertinas on a magnetic chuck I made 30 years ago. I had the opposite problem because the normal pitch of available chucks was too wide which didn’t concentrate the field well enough for the very thin steel reed tongues. At .080 inches pitch, the field hugs the surface but is very strong there. Put anything over 1/8 inch thick on it and you’ll never get it off again.
Hall sensors can be found in old VCRs if you want to scavenge them. Probably in old cassette players also, although I haven't checked those. They are used to read the tape for anyone that doesn't know.
Meaning to actually pick-up the signal? . As opposed to using wire-wound pick-up head ?
nice tip mate - cheers
@@philip5940 Yeah, I don't know which would be more effective, and it might not matter depending on the application. But most people have old tape decks and VCRs.
@@ThinkingandTinkering Great work as always, definitely giving me some ideas for future projects, lol.
Marvelous video again. now for another question regarding the serpentine coils. Is it possible to make the coil around the outside ring of the magnets then contionue that the same wire over the top and around another 'inner ring'? Thank you so much. God bless.
Yes, absolutely
I would like to see that driven by hv impulse in-between bifilar poles
I bought a halleffect controller for a hoverboard motor i salvaged. Might use it for a ball mill since its such a high torque motor.
nice
A magnetic reed switch, or a hall effect sensor and a mosfet
You may consider using a signal/function generator to make the demonstration easier to explain/control
If the magnets where angled, couldn't you just keep shuving yes primitive way I know and only one direction .
Always great videos Robert.
do you know - I never thought about that - that is an example of the kind of clever thinking I love mate - just brilliant - I am going to give it a try - thank you for that mate
Hi there I've been researching Marco Rodins vortex math and coil winding it around a torus then feeding the 3 6 9 from a positive amp output and the others to the negative and running frequencies to it I'd love your thoughts I'm a sound engineer and don't have much knowledge about electronics but I'm sure there's something to this tech that needs to be looked at. Peace
Very interesting, how can we combine this with the feather generator from 1865? Maybe make a more efficient wind turbine.
They used to use points for a timer, and used vacuum to make finer adjustments. I was so happy to get away from mechanical timing.
I have a question, if you run over a water hose sideways with your tire, which way does the water go? Towards the faucet or the nozzle end? Would a 2 degree angle change that? This is different though it's like there is no flat part of the tire, the magnetic field is round. The angle of attack is built in. Is half of it negative? Would moving the magnet off a small bit 3-6mm to one side help? I'm trying to be constructive, I don't have the possibility of a shop and I'm vastly curious
I thought that was in ICEs?
What would happen if you make two generators, and run the output of one coil into the other coil, the signal should be perfect to make the other spin, the only difference would be inertia, would be a fun experiment given you can make them so easy
I wonder, if you used a magnetic reed switch and a small magnet disk if you could use that to trigger the motor, something like a bedini circuit
Inductive sensor , Darlington pair and 2n3055 will switch about 10 amps with a good heat sink. Ideal for a solenoid motor or such like
cheers mate
Got a large field, low wind speeds so instead of making a large wind turbine I was thinking of using lots of small ones that will compound a usable quantity of power. How would one link them together to charge a battery for example? Would each one require some sort of voltage regulator so all of them output same voltage? Im thinking not all of them would spin at the same speed and their outputs would be all over the place
With torque on the outside I think it could be very good . Hate to be a safety police but it Might be a good idea to make sure those magnets can't fly out if making into a high rpm motor . 👍🏻
I've noticed all the three pin fans in my old computer computer case need to be updated to four pin fans, or else they all run at a consistent, non-responsive speed.
single speed is ok in most cases mate - which is why they do it
Would love to see you take on an axial flux Eddy current, magnet-free homopolar motor also using vesc and SimpleFOC to get high frequency, three phase.
I will have to have a think about it - cheers mate
@@ThinkingandTinkering cheers! And thanks for all the great, informative, inspiring work!
Many videos on the internet with a reed switch. They may arc a bit, a small neon light will help.
yeah they are ok
Can you maybe print another (the one that the coil is wrapped around), and make the pegs taller ? Then see if you can fit 3 coils on it 🙏
oh I am going to make a 3 phase mate lol - just a matter of when really - I am kid of hoping someone will beat me to it
you mentioned that adding more coils made a better motor but does the same apply to building a better generator
That really depends on your needs. If all you need is DC or single phase AC it's probably not worth the hassle, but if you specifically need 3 phase for something then 3 coils might do better for you. It would take special consideration and planning to avoid getting your coils all twisted around each other if using serpentine coils though.
it's not 'better' per se as in a more powerful motor - it's easier to control - with a generator you just don't need that kind of control - so why bother?
After seeing Christopher laimers 3d printed motor. Would ferros filament improve the core??? Or could you use your graphene ink in place of copper? Just to make a real homebuild fully printed version, but maybe add efficiency or just something a little strange?
yes it would the ink - not so much
I've got some ends of spools of what I think is magnet wire (it has crimson coating on it)
Two different gauges on the thinner side, could I use these to make one of these coils?
yes - but performance will depend on gauge
@@ThinkingandTinkering Thicker is better, yes?
Robert I have noticed that in all your designs of these generators you have the copper on the outside of the 3D printed part, meaning you have some amount of plastic between the magnets and the copper. I understand that this design makes assembly easier and this shape keeps the copper in place without need of extras. But wouldn't having the copper on the inside so that there is no plastic between the magnets and the copper have a (slight) increase in power generation for the same wind input? Is there a test you could do for this? I assume if you pull two magnets apart it will take more effort than pulling the same magnets apart when there is a piece of plastic between them. So moving a magnet vs a magnet with a plastic shield over a coil should give a different read out on your amp/volt meter I think? If the difference would be significant a small design change could be a way to improve efficiency.
Yes but you still have to have a gap of air between the magnets and coils. Without the gap it will not turn. The smaller the gap the better but you run into the issue of being able to keep the tolerances tight especially with a plastic home brew. If you have metal and solid bearings that can maintaine the tiniest gap you will have best efficiency but its hard to do something like that without a machine shop. Plastic deform with hear and is not very accurate and the runout of the bearings will have a play to them as well. When you get down to it, it's a matter of cost and difficulty of producing a product. The tighter the tolerance the more it costs and harder it is to produce.
dog gave a good answer mate and I would have said the same thing tbh
@@ThinkingandTinkering you now have a plastic ring on the inside with blocks on it, and the copper sitting between the blocks. What I'm suggesting is to move the plastic ring to the outside... The one thing that would change is the copper being pushed into an inner circle instead of onto an outer circle. So tolerances and bearings shouldn't play, what could play is the copper easier falling out when on an inner circle. But that might not be an issue if the copper just takes the shape and it being a circle in shape is keeping itself in place if that makes sense. That precision engineering could improve further is a total other thing. The concern I mentioned is the loss from having plastic in between copper and magnet.
Great video, great topic as usual!
I have a quite specific question:
I recently started researching a lot about Lebanon... they have a lot of things going wrong in terms of infrastructure. People and businesses there only get access to electricity for a view hours every view days. I find their energy problem really interesting and try to develop a non profit that gives people there access to a decentralised and sustainable source of electricity. ... it doesn't have to be much... due to their geographic advantages I think they can make use of solar power in combination with a battery that could supply a computer with enough power to run one or two days. This would give them security and lets them plan ahead.
Do any of you have some kind of input or recommendation for source of energy conversion or energy storage? Criteria would be cheap and or easy to buy or even self-produce. Thanks in advance!
my advice - stop thinking about batteries as electrochemical devices
Thanks for your opinion!
I tried to do my research on flywheels and gravity batteries (the burried ones not those block towers) but couldn’t make sense of the best option. It needs to be bulletproof or easy to repair and fitting for a small community of around 5-50 people or so.
thanks robert ...my knowledge is limited here however after your demo there showing the pulse control and a hall effect sensor when its setup and a motor. I wonder if this could be reversed when its running as a generator ? so the hall effect sensor could be used to take off the load when its at its at the bottom therefor making it a more efficient generator ?? so instead of a motor nudge its a generator release!!
you could do that mate - but I am not seeing the advantage myself
@@ThinkingandTinkering
a permanent magnet 3-phase motor uses a Hall sensor and an electronic controller to control the timing of the current to the motor windings. The controller measures the position of the rotor using the Hall sensor and adjusts the current to the motor windings to ensure efficient rotation of the motor.
In a generator setup, the principle is reversed, and the magnetic field produced by the rotating rotor induces a voltage in the stator windings. The magnitude and frequency of the induced voltage depend on the speed of the rotor and the strength of the magnetic field.
Regarding your idea of using the dips in the magnetic flux to reduce the torque, it is possible to adjust the timing of the current to the generator windings to reduce the torque required to turn the generator. This can be achieved by adjusting the timing of the electronic controller to ensure that the current to the generator windings is in phase with the dips in the magnetic flux, which can reduce the resistance to the rotation of the generator.
In your setup, you mentioned that you would have the output from the generator going to a capacitor. It is important to note that the use of a capacitor depends on the load requirements of your application. If the load is resistive, then a capacitor may not be necessary. However, if the load is inductive or capacitive, then a capacitor can be used to improve the power factor of the generator and increase its efficiency.
Overall, your idea has the potential to be an efficient way to generate electricity, but it will depend on the specific details of your setup and the load requirements of your application. I would recommend conducting further research and testing to determine the optimal configuration for your system. i might just be a sandwich short of a picnic🤣
Would single phase ac not work? The polarity of the windings would be switching back and forward between positive and negative as the magnets pass. Ofcourse then you would need a vfd to control the frequency and therefore the speed.
Hi Robert, I saw video 1869 and want to print this. I am curious if you had to use supports while printing the stator?
I cannot speak for Robert personally. Based on your question, it sounds like you are concerned about "midair" layers with nothing underneath them. If that is the case, then I may be able to help (see below):
I personally recommend exporting your 3D print model from whatever modeling program you use (such as Tinkercad or Freecad, which are both free) as a *.STL file.
Take the STL file you just created, and import it into Cura. I like Cura because it is free, and because it generates the *.gcode file for you automatically. The user interface is very simple, and you can tell it what you want the 3D printer to do.
MOST IMPORTANTLY, one of the options is to have it "generate supports", for those "midair" places with no supporting layers underneath them. Any portion of the part that does not have continuous material all the way to the plate surface will have supports underneath it. This creates a series of thin, vertical walls, much like the thin corrugations in the walls of a cardboard box. These supports are kind of annoying, but you can break them away from the finished part with your fingers fairly easily. You basically "pick your poison" and point down the side that is least objectionable to have these supports removed later. You can mitigate the amount of cleaning up that you have to do, by adjusting the minimum angle (relative to vertical) where the supports are generated. A 30 or 45 degree angle may need supports, but you can sometimes get away with not using them if the wall is "almost" vertical, such as 10 or 20 degrees (The default angle is set around 20 degrees, if I remember correctly.)
Anyway, I hope that helps. Have fun, and remember that practice makes perfect!
the stator no - the rotor yes - that's because the rotor has a flat indent section to accommodate the thrust bearing and is 'midair' the stator 'pegs' have an angle of less than 50 degrees - so the printer can cope with it - that's why the 'pegs' have rounded ends!
@@ThinkingandTinkering Thanks Robert, I didn't realize that about the rotor.
Question, if you simply did one big coil, no twists in it. And put all of the magnets in the same orientation instead of north south north south. Would that not be the perfect DC generator?
no - nothing would happen - you might want to watch a video or two I have done on the principles of generation mate
@@ThinkingandTinkering yea, been watching abit. its an interesting subject. and i got the idea whilst watching a video were you took a generator you already had, i think you called it the "lightning bolt generator" or something. and spun a coil around the whole thing.
I was thinking that if you didnt do "north south" pattern and instead of that going "north north" you would get a constant flow in one direction.
But thanks for the clarification.
is this weaker than an axial flux motor with separate coils? torque wise
The magnets on the rotor should easily trigger a reed switch ?
yes
Feed it some AC. Or built 2 of them, wire them together and turn one; see if the other turns.
Have you ever seen a living energy machine?
I have always thought that you could put generators in place of the flywheels and get 3X the electricity.
Its just my dream.
interesting dream
Hi Rob if you had 1 wire and took a tap from the middle and each end would that make a 3 phase
well that would effectively make coils in series with the start of one coil being joined to the beginning of the next - don't you have to join the coils all start to each other? kind of like in parallel?
@@ThinkingandTinkering I was thinking if you received a voltage from the middle of the serpentine winding in generator form would it be the same as a 3 phase motor
look into bifilar coils to run a transistor fired brushless motor
good suggestion - cheers
Have a look at the Moto Flux motor.
Robert, side question. Can you calculate the efficiency of a Venturi based on length?
There just gotta be engineering tables and figures for venturi from the days of carburettor technology.
I don't know mate
Thank you both. I'm working on an idea which incorporates a Venturi however I can not find details that speak to efficiency. Length, diameter, angle of deflection. Thank you anyways.
you could add a relay to pulse the voltage
you could but you would also need some way to time the pulse
@@ThinkingandTinkering Capacitors? You'll have to excuse my electrical knowhow, I'm an ex PC tech (20 years ago) and sometimes things pop into head :)
Cap > Charge > Relay.
try using rc time circuit with switch for different speeds
You could run that motor just on AC. I´t will do about 2.5 rounds/sec. If you have a simple transformer, let's say 6V AC out or so it will work. You should watch the current as it could become to high but a series resistor will help in that case. It might need a manual push to get going as it has no reason to go either way initially. After that it will run smoothly.
there is a problem ramping up the motor speed to the frequency - but yes you could
@@ThinkingandTinkering would make a great demo
How can you deliver back this electricity to the grid to lower the bills ??
In South Africa we call the twisted serpent by another name... Malema!
awesome - I am going to rename it in your honour - cheers mate
@@ThinkingandTinkering great I appreciate have a great day..
Ain`t it horrible that Malema only exists as a puppet of the rotten British/New world Political system.
Can you imagine poor little Zola Budd (supreme athlete) thrown to the wolves in the British press as an antichrist apartheid devil.
And they install Ramaposa and Malema, Mugabe and every other African dictator and keep pillaging the lands non-stop.
Voting is BS.
Will hz Freq’ncy drive not run it nicely?
it would but there are other issues you would have to overcome
What if you printed not ribbons but pins and then manually wired the copper under straight 45 degrees lines (more straight and sharper corners). Eventually one can create something to automate the wiring work.
yeah you could do that but until you created something to automate the winding it would be a royal pain lol - but you are absolutely right mate
@@ThinkingandTinkering maybe I'll give it a try does the angle needs to be 45 ? Or is steeper better like 60 or 80. And with uneven pins the wirings would shift I wonder if that is worse or better. I be happy to share blender models with you.
It stikes me that the serpentine coil has a limitation on the current it can put out at high speeds due to the fact that it has a relatively high inductance and resistance compared to generators which utilize multiple coils.
everything has limitations - with increasing complexity you get more failure points and expense with simplicity you get lower output but it is easier and cheaper to build - it's all just horses for courses really mate
Big fan. Love your channel I have one concern about your generator/ motor and it concerns it in all in one word heat. How would the filament from a 3D printer be in handle heat from the motor or heat from a generator? I think you may later on if you feel like it to make a video on the concerns about heat and not melting the filament from your 3D printer in the motor because as the amperage go up it going to produce some heat which then the heat is going to warm up the filament which then is going to wreck the motor/ generator. I would love to build one and hope you could clear that up about what to do about the heat that's coming from the motor/ generator that a person makes from a 3D printer. Thank you! Thank you so much!
It could be printed in ABS or Laser sintered metal.
A really cool thing that you can do with 3D prints is use them as models for sand casting metal components. You can make a silicon mold of your 3D print and then cast your parts in high temp resin. The 3D prints are proof of concept prototypes.
N grade Neodynium magnets start to lose magnetism (i.e. the curie point) at 80 C, so they'll fail before the plastic fully melts. That said, many plastics "creep" under that temperature so you're right it's an issue. An engineering plastic like tempered PEEK should be fine though.
yeah sure
I think will be very torqy because for 1 hz moves several radians while a normal one does a full revolution, very good for generator because makes a high voltage at low rpm but also high frequency, maging it in three phase motor i think is just a complication, that serpentine coil should do pull push on the rotor. The only think that i think is bad is the efficiency, because of high frequency per revolution and the hysteresis loop.
cheers mate
? wind operated graduated resistance switch? If one were to wind four serpents in one would the resistance to the start up and increasing levels of generation be able to be controlled ? Or is it naive wishful calculation? I,m glad i did,nt start making anything yet, you keep on adding improvements. I don,t like the wind operated clutch, belt and two generators of different sizes that I,m looking at . Is there an electronic method to enable graduated resistance for easier turbine starting ?
Suppose you make two and connect them together electrically? The waveform generated by one should match what the other wants to see. Albeit there is still the direction ambiguity. One way to transfer rotary motion.
yes it would - clever - cheers mate
I am building a permanent magnet 12 V generator using a 12 SI 78AMp alternator I have 10 permanent magnets how many magnets do I need to make this generator work?
Would run great with a Bedini Motor Circuit
cheers mate - interesting thought
@@ThinkingandTinkering You would only have to put around one trigger coil additionally then it should run
still think you should run something on resonant chambers
for sure
do the motors use capacitors to kick start the motor?
no
@@ThinkingandTinkering after further investigation Capacitors are used to reduce the electrical noise produced by the fan motor, which can interfere with other electronic equipment in the vicinity. By smoothing out the electrical signal, capacitors can help to reduce electromagnetic interference and improve the overall reliability of the electrical system.
How about a synchronous with a low power ac transformer?
sure
I noticed something I want to share with you all. When you connect an earth wire to a pipe, the neutral from a socket (Blue wire) then wire into a power supply unit from an old radio it gives you free power but not alot. Unless you can connect this up to a tesla coil to increase the voltage. Could you please do a video on this with many thanks?
I remember powering fairy lights like that 60 years ago. The limit is because you are relying upon voltage drop caused by devices using current within, or even outside the building. Most houses in the UK now have supplies protected by Residual Current devices(RCD) which trip if the current in the line and neutral cables goes out of balance by more than 30 milli Amps. Best not to annoy people by tripping the electrics all the time(I often do it as I can’t be bothered to isolate the neutral when working on circuits!😁).
I am sorry mate but this is CZcams and if I were to do such a video it would be removed and I would get a strike against the account - 3 main reason - the first - that's house supply and is dangerous advice - the second it is the main supply and actually theft - the third - here in the UK drawing power on the neutral will trip the RCD on the main board and cut off your house supply - so - no - sorry
DC to three phase via vesc to triple serpentine ...? SimpleFOC can do sensorless. Hah! You just said that. 😜
lol - yes I did lol
Love the motor but I think 'undulating' is a more apt description than 'twisted'.
yep - I called it twisted because we took the 'normal' serpentine coil and twisted it 90 degrees in space
I did wonder how you pulse DC.
just open and close a switch mate - it's actually pretty interesting - if you use an electronic switch you can change the time it is open and closed - that's what PWM is
Now how about setting this up with a 555 and a variable potentiometer.
go for it
If it’s not to much trouble, could you put this model on tinker cad please.
I think it's already on. I have to find it aswell
it's already there mate
Awesome, thanks!
How can i calculate the rpm of a diy motor i want to make, so that i will know the number of coils i need to make.
that is not a short answer lol - I may do a video for you - cheers
@@ThinkingandTinkering thanks
I see similarities to (badini?) Wheel
noting reversing polarity as per a mechanical commutator - analagous to a double acting steam engine...
- referring to "brushless" as electronically commutated links the ideas from the steam era.
nice - cheers mate
Hmmm.....Robert how about for electric generation obtaining one thick gauge square copper wire bent to follow the serpentine 3D plastic stator core shaped design, and reprint the rotor so as to accept tightly packed north south square shaped bar N52 magnets with lengthwise laminated North-South pole magnetic fields when positioned parallel to the single square thick gauge copper wire resulting in the alternating magnetic poles passing by at a high RPM the hairpin square copper wire core at 90 degrees North then South ??? A thought design for Motor CAD to confirm magnetic pole field orientation for best induced EMF.
yep it would work - but for a generator one of the key factors is length of wire passing through the field - thickness isn't important there - so one coil isn't much of a length - it would handle amps but you are not going to get the kind of amps out of this that one thick wire could handle
@Robert Murray-Smith We share the same concern. I passed along the thought because of the EMF increase that would come from the dense pack of N-S polled N52 square magnets passing over the single but larger mass of Square Copper Wire. As said, an idea to explore with Motor-CAD. Thank you both for all your videos. I watch each video with great interest. I built my first savonius rotor VAWT in 1986 out of Hawaiian Punch juice 1/2 steel can shells glued to a 8mm steel rod with a replaceable wood bead slid on the steel rod end and that bead nested into a wood block's 10mm hole to start outdoor barbeque fires by igniting the wood parts by rotational friction, and and coals. Just for fun tinkering around. Resulting in no rubbing sticks together and no lighter fluid needed or fluid taste in my cooked food. What fun just for the sake of fun !!!
So, what would happen if instead of pulsing the the wires , they were just connected ?
The coils field will be static, so the magnets will align with the static field and stop. A coil is just an electromagnet. It stays the same pole positions as long as the voltage is applied. You could possibly get this motor to run on AC but it is still hard to time the HZ of the AC to ramp up the speed of the motor without some form of timing. For normal DC motors you can also use brushes and a commutator. It breaks and makes connection in time. Most have more than one winding to force it to go in the same direction and keep force on it the whole time.
Fire
Thanks
@@teddycunningham7568 short an sweet answer
@@newmonengineering If you had two of Robert's machines, you could use one as a generator and feed its AC waveform to the other one used as a motor. Both have to ramp up, so the speed of the motor would (I think) match the speed of the generator. That should automatically take care of timing. Depending on the starting position, there would still be the ambiguity in direction of the motor.
👍🐝🌞
cheers mate
An ebike already has forward momentum so this single coil should be sufficient, Saves time in mass production, Easier to recycle or reuse.
oh - clever - cheers mate
@@ThinkingandTinkering As an ebike motor, if this is inside the hub of a 20 inch ebike wheel say, to travel at 20 miles per hour, the wheel rotates around 5.5 Hz. There's 20 loops in the serpentine coil. That's 5.5 Hz*20=110 Hz phase switching. According to my online search, skin depth for copper at 110 Hz is 6.5mm, so even the regular wiring used in the walls of homes, 3mm diameter, should be able to handle the frequency.
Hi there. I've watched ALOT of your videos and find you a very "clever" guy. Do you have time for some big questions. Big as in 600KVA
Fak I love ya brother.
wow - cheers mate