I can't begin to tell you how happy I am to have found your channel Mr. Smith. You're a modern day Mr. Wizard providing conceptual physics & engineering lessons in practical applications~
Mr. Murray-Smith, what a fabulous resource you are for ideas and things to ponder and consider. And it's tons of fun watching you and seeing your enthusiasm! Keep up the great thinking and tinkering!!! The world could use more people like you!!! God bless you, sir!
This is basically what I have been working on and commented on an older video. A little longer coil and stronger magnets. So cool to see you doing the same thing and bathe same time basically. Keep up the great work!!!
What I love most about the serpentine coil is how easy it is to make. Even if it were less efficient, it would still be a huge upside that a child can build them.
This an absolutely brilliant video, This also makes an most excellent motor when ran (can use hall effect sensors or reed switches ) as such. A man named John Bedini designed a motor called a "window' motor , and i made several of them and realized they make excellent alternators, when ran as such. There is no cogging , which is nice , and its easy to get good current out at low rpms.... The serpentine coil makes it all so much easier.
He does a really good job of explaining the stuff. With this one, you can print the tinkercad files, throw in the coil, a couple bearings, the magnets, and a shaft. He talks about this over this video and the one a few videos back he referenced in this video. He's laid it all out. Over the course of these two videos. Honestly IKEA could use a youtube channel where they walk you through how to construct the things. I'd prefer that format
Once you have the design, protopasta makes an 80% iron infused PLA that has a permeability of 5-8. Making the stator and cover out of that would further improve the flux change the windings would see.
I suggest (again) inserting a steel cylinder inside the rotor. This will magnetically connect the N/S back ends of the magnets, strengthening the magnetic field intersecting your serpentine coil. You will have to apply more torque but will get higher voltage out, which makes the generator even more effective for its size.
Will it make a difference if the steel cylinder touches the magnets? or should the magnets and steel be separated? If it should be separated, does the distance from the magnets to the steel have an effect on the efficiency of the generator?
This is why you pass information down from one generation to the next and this is why its a good idea to actually engage in historical research and history instead of neglect it and pass it off as outdated, you will not imagine the amount of stuff we have lost due to ignorance, This is something that would better our future use of better more effective motor generation
Robert you have inspired me to make these coils, though I have taken it a step further . I own punch presses and do tool and die work. I have built tooling which will form right angle serpentine coils out of 1/4" or 3/8" solid thick copper. No wrapping of single strands. The die is a progressive die set and the serpentine is taken up on a larger computerized machine coil, normally used for metal stamping of parts. Can cut to length making the diameter nearly any size wanted. Willing to supply samples for anyone interested. Keep up the good work.
as you probably realized by now, this is not how the physics works. the scaling for the number of turns vastly outpaces the losses due to resistance for narrow wires
A great simplification of a very complex topic. I'd like to see a video on low RPM generators - would it be possible to get more than a couple of watts out of a DIY low rpm (100-600rpm) gen by using larger magnets, bigger stator cores etc (with no gearbox required) or is it always preferable to use higher RPM in an AC gen? Keep up the quality stuff !
great question dude! firstly yes, technically you can reap greater power by increasing magnetic field and stator core size but it also depends on what the application is. if your trying run appliances, some may be fine but other more complex electronics are tuned to function at a certain Hz (frequency) which is determined by the rate the the N and S magnets push and pull the electrons back and forth in the circuit. so rpm determines the Hz. but if your application was energy storage, than you can repurpose the energy as it suits ;)
Very cool. I am looking at small, pedal-powered generators for a pedal car project. I know using a generator and motors will be far less efficient than a chain drive. This ought to help me save some of that efficiency. Thanks!
I am just amazed that his design has not been used way sooner Robert. Know for sure that now a many people will make the same method to make wind energy machines. Depending on location, this would make one self-sufficient and not care about cost of energy. Especially since electricity today is just going through the roof on ones electric bill. Nice work Sir. Peace vf
Instead of an outer sleave you should have another cylinder of magnets. Gauss rating is at the surface of the magnet. The further away the copper from the surface of the magnet the greater loss of gauss. To combat this you need to force the field lines of the magnets to travel to another magnet. This will improve efficiency by creating a magnetic circuit. Double the magnets for two rotors and one stator.
Great work Rob! Im currently following this series and trying to replicate (as best as possible) your designs with PVC fittings 😁👍 If i get something out of it ill share a video. Thanks for the inspiration ✌️
@@nitesh1431 You bet 👍 I purchased all of the components for my design and have started cutting and fitting. As soon as I have something to show for it, I'll send a video over to Rob ✌️
@@orpheuscreativeco9236 just subbed, interested in your pvc pipe ldeas, as I do not have a 3d printer, and your latest reply to Nitesh has me intrigued. Can't wait for video.
Great idea :) 3:05 if you make 3 coils to install them in 3-phase configuration, you would be increasing the horizontal length, which we avoided with the serpentine coils 😅
Great project, hope you release the files at some point. I would love it if you tried to short out the coils and give the generator a spin whenever you measure the open circruit voltage, the braking can give an idea of how well the generator performs.
If you made the magnets horizontal in a radial direction and made the serpentine coil flat in the horizontal direction you can bring the coil closer to the magnets. You can also stack the magnets and coils making a layer of magnets and coils alternately. You stack them as high as you want to produce the output you want.
I love your channel! I am not sure it has been mentioned before you could get more flux through the coil if you returned the magnetic flux on the rotor. You have a high reluctance path from the back of the magnets to the front of the magnets so you lose half the magnetic field that comes from the back of the magnets. You could build a low reluctance path to return the magnetic field from the magnet face that faces the coils to the back of the magnet by building the rotor in the shape of a cup made of magnetic material. The stator would fit inside the cup. The rotor cup would spin around the stator. You need the rotor in a cup shape so you don't make eddy currents - makes things a bit heavier and harder to build but you should be able to double the flux, hence the efficiency. Carry on!
Hi I have been watching your material for quite some time now, always enjoyable and informative thank you. If the serpentine coil is more efficient why do you suppose it hasn't been adopted in commercial alternators and motors. Just a thought
More stimulating information. But I have to point out one tiny error - The serpentine configuration does not give a higher ration of copper wires in the vertical plane to the horizontal plane (tops/bottoms) over a standard coil configuration. But that takes nothing away from the other advantages of the serpentine configuration.
Before I watched this video I had an idea about how you could fit this sort of thing in a downpipe. The diameter looks about the same, so the idea is to have the serpentine coil just inside the downpipe and a hollow rotor vertically mounted with the secret ingredient of a fan or archimedes screw inside the rotor so that rainwater turns it to generate electricity. OK, some losses due to structure to hold the axle in place, and probably a conical shape to cover the coils and direct water to the centre. Consider that water is denser than air. Well, something to think about.
Very nice. I'm looking forward to seeing a purpose built darwin to match this ... Looks like the more depth on the coil the better. Magnets to match. I'm stuck at the magnetic rotor stage, not having access to ceramic bearings at an affordable price. I'd happily accept any donations here in India ....
What would happen if you made 2 stators, one on the inside of your coil and one on the outside of your coil in the same orientation? Would that increase your energy density any? Perhaps test layering coils and stators around the same axis to see if that will increase your power density. See if 2 coils can power the third to create over-unity output?
Hello, great video's love em! Can i ask how you secure the magnets to the plastic? Glue/tape or something else... Also if you use stronger magnets will that effect the watts/amps output, say N52 magnets?
Hi Robert, Your latest video is interesting. In my experience not enough is given to the magnetic circuit. Your generator would probably give more output with an iron rotor and a surrounding iron casing.
Have you tried using halbach arrangements instead of NSNSNS? Isn't the best magnetic field the one with the most cross section going through the wires perpendiculary? NSNSNSNS looks like small circles, the opposite of the serpentine coil's objective How to not waste the part of the field that is perpendicular to the surface of the magnets? And the part of the field that's pointlessly in the middle of the rotor? Maybe it's only relevant in bigger rotors so that the geometry of the rotor is closer to being flat(larger diameter), or not at all But you've optimized for the best electric field reaction to the accelerated magnetic field, but what about optimizing the magnetic field itself? I'd love to see a 2d halbach array using many small magnets, maybe offset/intercalated so that the resulting magnetic field is like a larger diameter cylinder parallel to the surface of the magnets/rotor. I really hope there's something useful around this idea
Just had an Idea you might enjoy: A suspended water tank swaying in the wind could be fitted with a small tube, and a few tesla valves at the bottom, and would act as a rectifier pump.
Robert, i watched the video where you say you can use a mosfet to induce maqgnetism in a electro magnet. In another video you said the longer copperwire the higher voltage, the wider it is the higher amperage. So i guess we agree that the more copper used in weight the more watt will you get. But you might be able to create a strong magnet field on your electromagnets, with just very low input watts. So do you really need a wind turbine, to make 6watts?
Thanks for your bold claims" 😉 Keep 'em coming! Switch from a joule thief... Eddie current...magnetrons..capacitors cascading... tilting leverage...gravity...... ideas ..ideas!
Hey! An interesting idea to let this motor deliver more watts (in higher wind speeds) without going over the current limit of the wire would be to have a circuit that has a sort of adaptive resistance or reluctance to limit current while allowing the voltage to climb, making a sort of varying voltage, constant current generator. This would obviously be limited by the dielectric strength of the wire insulator, but what are your thoughts? Maybe combine elements of this idea with a computer controlled magnetic gearbox to maximize output sort of like knee-point tracking in solar?
There are two of us who are working from your designs combining different aspects of them I'm interested in wind The bioplastic serpentine coil and then the flat rotor and he's stacking the flat rotors in like a huge long stack of them and then counter facing the poles on the opposing sides and has also integrated your flywheel right so he's got to flywheel on both end and then I'm going to somehow probably use the the the star gear or some type of down fearing and then also I'm working with your designs to regulate the power output and so you have inspired two people who are now taking your work and your designs and adding our own and then I told him about my wish to make your stuff with bioplastic and graphene and if necessary depending on how it works out maybe adding carbon fiber in long strands by splitting the plaster mold in half and it'll be a heat like high temperature with the heating elements built within the mold because you have to heat it up under pressure so it's going to be like injection molding with a ramrod and some kind of press and it heats itself and clean it up and then put some kind of UV clear coat on the outside and that should keep it from breaking down too early and you just add another one if you know so basically when you want to start decomposing back into no protein you stop adding a coat the coating and you put it in an anaerobic environment.
Is it “right-anglesness” or the length of the wire that increases efficiency? Because wire in serpentine configuration is longer at the shallower angle than at the right angle.
Fantastic well done Mate. Remember the graphene ink coil? Any chance you can build a serpentine gen with one, isnt your ink more conductive than copper? if you coat a thin fishing line with ink let it dry then paint it with resin?Then wind your coil? Please pretty Please??? And lighter than copper.
Hi Robert. Great video, thanks a lot! Just to get this right... This now is not three phase? It only has three separate coils that you can arrange either in parallel or in series? And how would I arrange three serpentines to act as three phase generator? Have them run down in one slot and leave two empty before coming up again, or have each coil covering a 120 degrees segment of the stator?
Awesome as always Robert! So in this configuration, would one turbine twice the length be more efficient that 2 turbines at normal length due to minimized bend points? When would you reach effieincy saturation purely from extending the straight section length?
You can increase the output by doping the stator with iron powder. Also you can angel your magnets having 2 like poles pointing toward each other and increase the magnetic field strength. Tesla gives heaps of info he ran 42 poles or more. But good place to start.
I was thinking about this and what if instead of, or in addition to, rotating the 12 magnets at once, what if we rotated the magnetic field in each of the 12 positions? What I am imagining are two coils, an inner and outer coil, and 24 magnets in alternating alignment. As an example each set of two might be say N/S then S,N, with coils on each side. Then something that rotates the actual magnets. I am imagining a gear-like system where every, just as an example, 1/12th of a turn is effectively equal to one full revolution of two of these.
Based on what you said about the straight wire getting the most electrical energy, it seems like the longer you can make the whole generator, the more efficient it should be, right?
i've often been curious why is copper foil not used inplace of copper wire? i'd feel like the surface area would go up with the number of loops. math wise i was unsure about the eddy's calc, let alone winding since most of the math involves wire diameter instead of width and thickness, to length, i mean surface area mentally feels like it should go up.
Aren't commercial alternators, like used in cars, established technology in terms of mass production, friction losses (eg good quality bearings), using a light coil instead of heavy magnets etc?
just a question ... could be used some kind of cvt transmission to optimize the rpm and power got from a wind turbine, and protect it from strong winds? Cheers
You should be able to increase the useful Flux and the power density with a halbach array built using two levels. If the magnets have magnetic fields oriented along the shortest length --assuming the same magnet shape-- then you could use the 3d-prints as--is, alternating North, south radially; if you then modify the magnet holder (is that the armeture?) so that a second ring of magnets are inboard of the exterior ring and can be oriented to make a halbach array. (IE, every north of the inner ring is oriented annularly towards a south of the radially oriented outer ring.) Thus, with only a minor modification, this design should be able to double or triple the usable magnetic Flux: twice the magnets with a field shaped into the used volume. The magnets are in the center, right? I'm suddenly forgetting the assembly pattern. Regardless, the above comments assume the magnets are internal of the coils. The described geometry would have to change (though only slightly: the radial and annular componets swap) if the coils were within the magnet housing.
follow up to my recommendation in another video. pu 12 soft iron fins in the middle of the coil that I recomended, as well as 12 fins offset half way outside the coil.
I love your work and enthusiasm hurry up and fine tune this and issue the ultimate window generator. Each video I can seeing you getting closer can't wait for the day you drop the final design plus cad designs legend keep plucking away
Could you maybe also tell how many meters/grams of wire goe in a certain design? I would like to experiment with this and am looking to buy enameled copper wire. It's not cheap so would be nice to know if I need to buy 500grams or better 1000gram spools (of maybe it is a lot less used in such a generator) ?
Now for a SUPER BOOST incorporate the Thunderbolt idea into this idea by backing the coils and magnets with pieces of steel. At the very least you can back the magnets with steel
I'm puzzled. Excuse me if this question is dumb. That serpentine coil seems to have 6 'ups', 6 'downs', 6 'tops' and 6 'bottoms'. Perhaps my error is in assuming that you can't count each vertical twice when comparing the potential power output of the serpentine to its equivalent made from separate complete loops, so I assume that this serpentine is equivalent to 6 separate loops? If so, 6 separate coils would also exhibit 6 'ups', 6 'downs', 6 'tops' and 6 'bottoms'. So, in the serpentine equivalent how has wire been saved?
6 ups + 6 downs =12 coils. 1 top + 1 bottom = 1 coil. 6 tops + 6 bottoms = 6 coils. So 12 coils but only 6 coils worth of tops and bottoms. Not to mention the time and energy spent making 12 separate coils Verse 1 easy to make serpentine coil :)
@@stevengouws8684 Hi there. Okay, so I assume the comment deletions are as a result of links, or mention of Inst......m so we must resort to text. I will persist, as this is driving me a bit mad. To identify 12 coils in the serpentine array, do we not have to count each up and down in adjacent coils twice? I can't quite see how I can count 12 without doing that. Is that valid? Does each vertical bunch of wire generate twice the power of its coil equivalent? If so, how? What am I missing? Thanks for the help.
@@Howtosolveproblems Not sure each vertical coil generates 2x the normal coil. It generates at it's most effective for copper used, and angle of magnetic field passing through the wire (90'). It's far easier to make, uses less copper and is more effective. Using different magnets and different copper wire gauges, will yield different results, as well as RPM of the magnetic stator. However focusing purely on the coils, if you used as much copper of the same gauge to make a serpentine coil, as opposed to standard (12) SEPERATE COILS, you will ( should ) get a better result . You have to test and see for yourself, nothing like it. :)
@@stevengouws8684 Oh, I quite agree. I don't quite understand how each vertical can be providing twice the power. Hence, when I add up 6 ups and 6 downs I count 6 coils as I don't think I can count these verticals twice to count 12. It's not my topic though, so I assume I'm making an error somewhere, I just don't know where. The reason I'm trying to work this out is that I have indeed tried this for myself and still don't see the advantage the serpentine offers. I've built a rudimentary wind turbine on the roof of my shed and I've just about completed a generator which I'm documenting online. I wanted to offer a diagram of how I'm counting this and invite some opinions, but this seems to be completely forbidden in RUclips comments. Even mention of an external resource seems to cause automated conniptions, which is rather inconvenient when one is trying to have a discussion.
Think I'm going to have to watch this several times,, the information about the angle of the coil and opposed to the polarity of the magnets,, as I have a bunch of microwave magnets,, and I'm wondering how wide I'll have to space my wire crossings so glad I don't have multiples influence at any one time
As you say Robert, every thing is relative. So if you scaled up the diameter of the stator and rotor you could use 0.4mm copper wire. But would that actually increase the output proportionally?
Hi Rob , with the STL files is there a special trick to a successful print or a problem with gcodes ? Tried 3 times now and keep having trouble appreciate anyone for guidance
Have you talked about axial flux motors before? I saw someone use those motors for a wind turbine generator, id love to hear your opinion on that. Love your channel thanks a bunch!
I have theory all life flows in the same pattern the Fibonacci sequence the golden ratio. We need to apply this to coil wraps and magnet placement to create no drag no resistance generator
Hey Rob nothing wrong with sque the magnets to the same angel as coils lol lol cutting it at a small angle will give the best results so sque both one a just a little more than the other the out put goes down a touch but less force to turn goes down quicker
if you have two tuning forks of the same frequency if we hit one dose the other start singing dose the second one slow the first ones singing water is called ice liquid steam maybe plasma if in right con but are they all water do you make a coil sing but electric dont go though air but it will if plates are very close across the two lines dont work and there is diff in caps laden jar also some things take what magnitizem amps they need others will act like a hole with no bottom until so hot they blow those are the fun ones to tinker with the ones of old in glass under vacuum dont blow as easy of the sold state the best to play with is the harder to find like the diodes with cool metal inside resistants not always a loss there is a almost perfect way to build a inductor ac resistance and dc resistance is not the same period!! another thing if we know the distance between two corners of a triangle and know the angel of another could we make a close estimate of how far up our drone or kite airplane or any thing else is the human eye can not see detail that far away definity impossible to see detail at say 200 to 250 thousand miles up but a drone battery would die before that hell is the moon not 244k miles away now that would be one hell of a battery if we was flying a drone over the ocean it would disappear from bottom to the top because of a thing called vanishing point the triangle from our eye to the drone "looking like setting on top of the water from our view" back of across the water to our feet from feet to our eye makes up this elongated triangle the more elongated the less light can reflect back to our eye the bottom of our drone will disappear first because of this them if we keep going it all will disappear we will need a good zoom lens to bring enough light back in to see it again no one has ever seen a boat go over the carve lol did it truly go over if zoom lens bring it back over that carve same thing with the sun lol lol before you parrot test YOURSELF the foolish is where you find the truths no one needs to know you was foolish enough to test instead of parrot others lol rob has to know this stuff i am not writing this to him no one wants the never ending onslot of insults by tring to show some one truth
How would one determine the optimum ratio of the copper wire used to make the 180 degree turn from north to south as opposed to the straight- line generation sector of the generator thru increased axial length to be the most efficient in terms of cost to returns; would the magnets be the determining factor?
Robert, are these files available on Tinkercad yet? I looked in your designs and couldn't see it. Thanks for all your work. I have printed 8 ugrinsky blades inspired by your video. It runs in the slightest breeze and I intend to use it to heat a 12v element in a radiator.
What about using a ahort cut off of PVC pipe as the stator and coil the wire around? It will get more of the wire closer to 1 and add phases by grouping the wires when you wrap them! What do you think?
Hi Rob thanks for answering the wire size, I saw someone on the internet creating their own serpentine generator and he was saying the creating a larger magnetic north by having 3 North's then 3 south's etc etc produce a larger field and hence a larger voltage, what's your thoughts
i don't think it will help much - you need a changing magnetic field and it need to change for each length of wire that goes through it - if you have a broader field the field changes more slowly with respect to rotational speed - or at least that's how i see it - but i could be wrong
I'm a 50 year old electrician and I love your channel. I'm learning so much 😊 Thank you
I can't begin to tell you how happy I am to have found your channel Mr. Smith. You're a modern day Mr. Wizard providing conceptual physics & engineering lessons in practical applications~
Mr. Murray-Smith, what a fabulous resource you are for ideas and things to ponder and consider. And it's tons of fun watching you and seeing your enthusiasm! Keep up the great thinking and tinkering!!! The world could use more people like you!!! God bless you, sir!
This is basically what I have been working on and commented on an older video. A little longer coil and stronger magnets. So cool to see you doing the same thing and bathe same time basically. Keep up the great work!!!
What I love most about the serpentine coil is how easy it is to make. Even if it were less efficient, it would still be a huge upside that a child can build them.
This an absolutely brilliant video, This also makes an most excellent motor when ran (can use hall effect sensors or reed switches ) as such. A man named John Bedini designed a motor called a "window' motor , and i made several of them and realized they make excellent alternators, when ran as such. There is no cogging , which is nice , and its easy to get good current out at low rpms.... The serpentine coil makes it all so much easier.
Consider creating IKEA level drawn instructions on how to create these. And all your models and innovations.
No.
No.
You want them hand delivered as well?
IKEA needs more practice with Assembly instructions 🤔🤣😊
A 'please' wouldn't have hurt.
@ liam winter id like to see that.
He does a really good job of explaining the stuff. With this one, you can print the tinkercad files, throw in the coil, a couple bearings, the magnets, and a shaft. He talks about this over this video and the one a few videos back he referenced in this video. He's laid it all out. Over the course of these two videos. Honestly IKEA could use a youtube channel where they walk you through how to construct the things. I'd prefer that format
When you get this all worked out CAn you make detailed laymans instructions on building it. Love your stuff Keep up the good work!
Once you have the design, protopasta makes an 80% iron infused PLA that has a permeability of 5-8. Making the stator and cover out of that would further improve the flux change the windings would see.
I suggest (again) inserting a steel cylinder inside the rotor. This will magnetically connect the N/S back ends of the magnets, strengthening the magnetic field intersecting your serpentine coil. You will have to apply more torque but will get higher voltage out, which makes the generator even more effective for its size.
Will it make a difference if the steel cylinder touches the magnets? or should the magnets and steel be separated? If it should be separated, does the distance from the magnets to the steel have an effect on the efficiency of the generator?
@@stoffel89 yes, distance will weaken the magnetic field
This is why you pass information down from one generation to the next and this is why its a good idea to actually engage in historical research and history instead of neglect it and pass it off as outdated, you will not imagine the amount of stuff we have lost due to ignorance, This is something that would better our future use of better more effective motor generation
Robert you have inspired me to make these coils, though I have taken it a step further . I own punch presses and do tool and die work. I have built tooling which will form right angle serpentine coils out of 1/4" or 3/8" solid thick copper. No wrapping of single strands. The die is a progressive die set and the serpentine is taken up on a larger computerized machine coil, normally used for metal stamping of parts. Can cut to length making the diameter nearly any size wanted. Willing to supply samples for anyone interested. Keep up the good work.
Great idea mate! Or coat paper or fishing line with graphene ink instead of copper to make the serpentine coil??
Yes Steve, I would love a sample of what you are costructing
Couldn't you just have the same thing laser cut via Send Cut Send and then roll it to the diameter you need?
as you probably realized by now, this is not how the physics works. the scaling for the number of turns vastly outpaces the losses due to resistance for narrow wires
A great simplification of a very complex topic.
I'd like to see a video on low RPM generators - would it be possible to get more than a couple of watts out of a DIY low rpm (100-600rpm) gen by using larger magnets, bigger stator cores etc (with no gearbox required) or is it always preferable to use higher RPM in an AC gen?
Keep up the quality stuff !
great question dude! firstly yes, technically you can reap greater power by increasing magnetic field and stator core size but it also depends on what the application is. if your trying run appliances, some may be fine but other more complex electronics are tuned to function at a certain Hz (frequency) which is determined by the rate the the N and S magnets push and pull the electrons back and forth in the circuit. so rpm determines the Hz. but if your application was energy storage, than you can repurpose the energy as it suits ;)
In a nutshell: The more power you want at low RPM's, the more torque you will need.
Very cool.
I am looking at small, pedal-powered generators for a pedal car project. I know using a generator and motors will be far less efficient than a chain drive. This ought to help me save some of that efficiency.
Thanks!
I am just amazed that his design has not been used way sooner Robert. Know for sure that now a many people will make the same method to make wind energy machines. Depending on location, this would make one self-sufficient and not care about cost of energy. Especially since electricity today is just going through the roof on ones electric bill. Nice work Sir. Peace vf
Instead of an outer sleave you should have another cylinder of magnets.
Gauss rating is at the surface of the magnet. The further away the copper from the surface of the magnet the greater loss of gauss.
To combat this you need to force the field lines of the magnets to travel to another magnet. This will improve efficiency by creating a magnetic circuit.
Double the magnets for two rotors and one stator.
Great work Rob! Im currently following this series and trying to replicate (as best as possible) your designs with PVC fittings 😁👍 If i get something out of it ill share a video. Thanks for the inspiration ✌️
awesome mate - i would love to see it
@@ThinkingandTinkering Hi Rob! Haven't anybody bug you about Hallbach array magnet arrangement instead of North-South, yet?
HI. Let us know if you have any progress?
@@nitesh1431 You bet 👍 I purchased all of the components for my design and have started cutting and fitting. As soon as I have something to show for it, I'll send a video over to Rob ✌️
@@orpheuscreativeco9236 just subbed, interested in your pvc pipe ldeas, as I do not have a 3d printer, and your latest reply to Nitesh has me intrigued. Can't wait for video.
Great idea :)
3:05 if you make 3 coils to install them in 3-phase configuration, you would be increasing the horizontal length, which we avoided with the serpentine coils 😅
Learning about Watts amps and application is very intense for me. But watching your discussions about it helps considerably.
Great project, hope you release the files at some point. I would love it if you tried to short out the coils and give the generator a spin whenever you measure the open circruit voltage, the braking can give an idea of how well the generator performs.
If you made the magnets horizontal in a radial direction and made the serpentine coil flat in the horizontal direction you can bring the coil closer to the magnets. You can also stack the magnets and coils making a layer of magnets and coils alternately. You stack them as high as you want to produce the output you want.
Thanks. I imagine generators are a bottleneck for many alternative energy projects, so it's splendid to have one that folks can build themselves.
Wouldn’t this do the same as a large diameter traditional circular coil with lots of smaller magnets in same p/n configuration?
I love your channel! I am not sure it has been mentioned before you could get more flux through the coil if you returned the magnetic flux on the rotor. You have a high reluctance path from the back of the magnets to the front of the magnets so you lose half the magnetic field that comes from the back of the magnets. You could build a low reluctance path to return the magnetic field from the magnet face that faces the coils to the back of the magnet by building the rotor in the shape of a cup made of magnetic material. The stator would fit inside the cup. The rotor cup would spin around the stator. You need the rotor in a cup shape so you don't make eddy currents - makes things a bit heavier and harder to build but you should be able to double the flux, hence the efficiency. Carry on!
Thank you for the recommendation for specific reading to understand.
you don't need specific - there is a ton of it
Hi
I have been watching your material for quite some time now, always enjoyable and informative thank you.
If the serpentine coil is more efficient why do you suppose it hasn't been adopted in commercial alternators and motors. Just a thought
This such a great channel. A real treasure
Love serpentine coils are awesome!!! Love this!!!!
More stimulating information. But I have to point out one tiny error - The serpentine configuration does not give a higher ration of copper wires in the vertical plane to the horizontal plane (tops/bottoms) over a standard coil configuration. But that takes nothing away from the other advantages of the serpentine configuration.
Thank you sir. Seriously looking at setting that up with vertical axis windmill to see how well it would fair. Again thank you very much.
Let us know how it went. I'm looking forward to make a windwall too.
You always have a great ideas that lead many places. Thank you
That gold globe in the background cracks me up....
Before I watched this video I had an idea about how you could fit this sort of thing in a downpipe. The diameter looks about the same, so the idea is to have the serpentine coil just inside the downpipe and a hollow rotor vertically mounted with the secret ingredient of a fan or archimedes screw inside the rotor so that rainwater turns it to generate electricity. OK, some losses due to structure to hold the axle in place, and probably a conical shape to cover the coils and direct water to the centre. Consider that water is denser than air. Well, something to think about.
Great Work Earthling
Bless Up
Very nice. I'm looking forward to seeing a purpose built darwin to match this ... Looks like the more depth on the coil the better. Magnets to match. I'm stuck at the magnetic rotor stage, not having access to ceramic bearings at an affordable price. I'd happily accept any donations here in India ....
What would happen if you made 2 stators, one on the inside of your coil and one on the outside of your coil in the same orientation? Would that increase your energy density any? Perhaps test layering coils and stators around the same axis to see if that will increase your power density. See if 2 coils can power the third to create over-unity output?
I am enjoying your videos very much.
Hello, great video's love em! Can i ask how you secure the magnets to the plastic? Glue/tape or something else... Also if you use stronger magnets will that effect the watts/amps output, say N52 magnets?
Hi Robert, Your latest video is interesting. In my experience not enough is given to the magnetic circuit. Your generator would probably give more output with an iron rotor and a surrounding iron casing.
Have you tried using halbach arrangements instead of NSNSNS?
Isn't the best magnetic field the one with the most cross section going through the wires perpendiculary?
NSNSNSNS looks like small circles, the opposite of the serpentine coil's objective
How to not waste the part of the field that is perpendicular to the surface of the magnets? And the part of the field that's pointlessly in the middle of the rotor?
Maybe it's only relevant in bigger rotors so that the geometry of the rotor is closer to being flat(larger diameter), or not at all
But you've optimized for the best electric field reaction to the accelerated magnetic field, but what about optimizing the magnetic field itself?
I'd love to see a 2d halbach array using many small magnets, maybe offset/intercalated so that the resulting magnetic field is like a larger diameter cylinder parallel to the surface of the magnets/rotor.
I really hope there's something useful around this idea
Exciting improvement! Going to make one of these also myself soon.
Just had an Idea you might enjoy:
A suspended water tank swaying in the wind could be fitted with a small tube, and a few tesla valves at the bottom, and would act as a rectifier pump.
Robert, i watched the video where you say you can use a mosfet to induce maqgnetism in a electro magnet. In another video you said the longer copperwire the higher voltage, the wider it is the higher amperage. So i guess we agree that the more copper used in weight the more watt will you get. But you might be able to create a strong magnet field on your electromagnets, with just very low input watts. So do you really need a wind turbine, to make 6watts?
Thanks for your bold claims" 😉 Keep 'em coming!
Switch from a joule thief... Eddie current...magnetrons..capacitors cascading... tilting leverage...gravity...... ideas ..ideas!
Hey! An interesting idea to let this motor deliver more watts (in higher wind speeds) without going over the current limit of the wire would be to have a circuit that has a sort of adaptive resistance or reluctance to limit current while allowing the voltage to climb, making a sort of varying voltage, constant current generator. This would obviously be limited by the dielectric strength of the wire insulator, but what are your thoughts? Maybe combine elements of this idea with a computer controlled magnetic gearbox to maximize output sort of like knee-point tracking in solar?
If Tom Bombadil was in the LOTR movies, he would've been played this guy. Jovial, down-to-earth, yet insanely knowledgeable.
There are two of us who are working from your designs combining different aspects of them I'm interested in wind The bioplastic serpentine coil and then the flat rotor and he's stacking the flat rotors in like a huge long stack of them and then counter facing the poles on the opposing sides and has also integrated your flywheel right so he's got to flywheel on both end and then I'm going to somehow probably use the the the star gear or some type of down fearing and then also I'm working with your designs to regulate the power output and so you have inspired two people who are now taking your work and your designs and adding our own and then I told him about my wish to make your stuff with bioplastic and graphene and if necessary depending on how it works out maybe adding carbon fiber in long strands by splitting the plaster mold in half and it'll be a heat like high temperature with the heating elements built within the mold because you have to heat it up under pressure so it's going to be like injection molding with a ramrod and some kind of press and it heats itself and clean it up and then put some kind of UV clear coat on the outside and that should keep it from breaking down too early and you just add another one if you know so basically when you want to start decomposing back into no protein you stop adding a coat the coating and you put it in an anaerobic environment.
Is it “right-anglesness” or the length of the wire that increases efficiency? Because wire in serpentine configuration is longer at the shallower angle than at the right angle.
Great video, thanks. How's the stopping smoking going?
Fantastic well done Mate. Remember the graphene ink coil? Any chance you can build a serpentine gen with one, isnt your ink more conductive than copper? if you coat a thin fishing line with ink let it dry then paint it with resin?Then wind your coil? Please pretty Please??? And lighter than copper.
Hi Robert. Great video, thanks a lot!
Just to get this right... This now is not three phase? It only has three separate coils that you can arrange either in parallel or in series?
And how would I arrange three serpentines to act as three phase generator? Have them run down in one slot and leave two empty before coming up again, or have each coil covering a 120 degrees segment of the stator?
Awesome as always Robert!
So in this configuration, would one turbine twice the length be more efficient that 2 turbines at normal length due to minimized bend points?
When would you reach effieincy saturation purely from extending the straight section length?
You can increase the output by doping the stator with iron powder. Also you can angel your magnets having 2 like poles pointing toward each other and increase the magnetic field strength. Tesla gives heaps of info he ran 42 poles or more. But good place to start.
Love your videos man your channel is amazing ❤
Where do you source your magnets?
Also a BOM would be awesome for future projects
I was thinking about this and what if instead of, or in addition to, rotating the 12 magnets at once, what if we rotated the magnetic field in each of the 12 positions? What I am imagining are two coils, an inner and outer coil, and 24 magnets in alternating alignment. As an example each set of two might be say N/S then S,N, with coils on each side. Then something that rotates the actual magnets. I am imagining a gear-like system where every, just as an example, 1/12th of a turn is effectively equal to one full revolution of two of these.
Based on what you said about the straight wire getting the most electrical energy, it seems like the longer you can make the whole generator, the more efficient it should be, right?
i've often been curious why is copper foil not used inplace of copper wire? i'd feel like the surface area would go up with the number of loops. math wise i was unsure about the eddy's calc, let alone winding since most of the math involves wire diameter instead of width and thickness, to length, i mean surface area mentally feels like it should go up.
Looks like a neat wood working project for fun if not function.
Aren't commercial alternators, like used in cars, established technology in terms of mass production, friction losses (eg good quality bearings), using a light coil instead of heavy magnets etc?
just a question ... could be used some kind of cvt transmission to optimize the rpm and power got from a wind turbine, and protect it from strong winds? Cheers
You should be able to increase the useful Flux and the power density with a halbach array built using two levels. If the magnets have magnetic fields oriented along the shortest length --assuming the same magnet shape-- then you could use the 3d-prints as--is, alternating North, south radially; if you then modify the magnet holder (is that the armeture?) so that a second ring of magnets are inboard of the exterior ring and can be oriented to make a halbach array. (IE, every north of the inner ring is oriented annularly towards a south of the radially oriented outer ring.) Thus, with only a minor modification, this design should be able to double or triple the usable magnetic Flux: twice the magnets with a field shaped into the used volume.
The magnets are in the center, right? I'm suddenly forgetting the assembly pattern. Regardless, the above comments assume the magnets are internal of the coils. The described geometry would have to change (though only slightly: the radial and annular componets swap) if the coils were within the magnet housing.
Brilliant! You never cease to impress. Bravo!
follow up to my recommendation in another video. pu 12 soft iron fins in the middle of the coil that I recomended, as well as 12 fins offset half way outside the coil.
cheers mate
another great converter from the mind of the genius that is Robert 👍
So easy to copy. That's my way. Get a big huge. 👍
Awesome stuff Robert... Has always!
I love your work and enthusiasm hurry up and fine tune this and issue the ultimate window generator. Each video I can seeing you getting closer can't wait for the day you drop the final design plus cad designs legend keep plucking away
Hi Robert, really enjoy the videos. What changes in wire and magnet size would be required to build a dc generator to charge a 12vdc battery?
For something this size, throwing a $2 buck-boost convertor on it after rectification would work just fine.
Hey Rob, are you using solid wire? I see on the web that twisted wire will reduce electromagnetic power.
Could you maybe also tell how many meters/grams of wire goe in a certain design? I would like to experiment with this and am looking to buy enameled copper wire. It's not cheap so would be nice to know if I need to buy 500grams or better 1000gram spools (of maybe it is a lot less used in such a generator) ?
Now for a SUPER BOOST incorporate the Thunderbolt idea into this idea by backing the coils and magnets with pieces of steel.
At the very least you can back the magnets with steel
Finally someone who speaks in mm not in inches
I'm puzzled. Excuse me if this question is dumb. That serpentine coil seems to have 6 'ups', 6 'downs', 6 'tops' and 6 'bottoms'. Perhaps my error is in assuming that you can't count each vertical twice when comparing the potential power output of the serpentine to its equivalent made from separate complete loops, so I assume that this serpentine is equivalent to 6 separate loops? If so, 6 separate coils would also exhibit 6 'ups', 6 'downs', 6 'tops' and 6 'bottoms'. So, in the serpentine equivalent how has wire been saved?
6 ups + 6 downs =12 coils. 1 top + 1 bottom = 1 coil. 6 tops + 6 bottoms = 6 coils. So 12 coils but only 6 coils worth of tops and bottoms. Not to mention the time and energy spent making 12 separate coils Verse 1 easy to make serpentine coil :)
@@stevengouws8684 Hi Steven. Thanks for the reply. Unfortunately, every time I try to continue the discussion my comment is deleted.
@@stevengouws8684 Hi there. Okay, so I assume the comment deletions are as a result of links, or mention of Inst......m so we must resort to text. I will persist, as this is driving me a bit mad. To identify 12 coils in the serpentine array, do we not have to count each up and down in adjacent coils twice? I can't quite see how I can count 12 without doing that. Is that valid? Does each vertical bunch of wire generate twice the power of its coil equivalent? If so, how? What am I missing? Thanks for the help.
@@Howtosolveproblems Not sure each vertical coil generates 2x the normal coil. It generates at it's most effective for copper used, and angle of magnetic field passing through the wire (90'). It's far easier to make, uses less copper and is more effective. Using different magnets and different copper wire gauges, will yield different results, as well as RPM of the magnetic stator. However focusing purely on the coils, if you used as much copper of the same gauge to make a serpentine coil, as opposed to standard (12) SEPERATE COILS, you will ( should ) get a better result . You have to test and see for yourself, nothing like it. :)
@@stevengouws8684 Oh, I quite agree. I don't quite understand how each vertical can be providing twice the power. Hence, when I add up 6 ups and 6 downs I count 6 coils as I don't think I can count these verticals twice to count 12. It's not my topic though, so I assume I'm making an error somewhere, I just don't know where. The reason I'm trying to work this out is that I have indeed tried this for myself and still don't see the advantage the serpentine offers. I've built a rudimentary wind turbine on the roof of my shed and I've just about completed a generator which I'm documenting online. I wanted to offer a diagram of how I'm counting this and invite some opinions, but this seems to be completely forbidden in RUclips comments. Even mention of an external resource seems to cause automated conniptions, which is rather inconvenient when one is trying to have a discussion.
How on earth do you add two more coils?
Excelsior! Optimization in all regards! The goes Win, Place and Show!
Another banger.
Thank you for what brings you joy
Thanks
wow - thank you mate
Very good, don't respond to the world of idiocracy posters. Telling them to read is curt & perfect!
What is that, about 150mm length on the 8mm bar?
Think I'm going to have to watch this several times,, the information about the angle of the coil and opposed to the polarity of the magnets,, as I have a bunch of microwave magnets,, and I'm wondering how wide I'll have to space my wire crossings so glad I don't have multiples influence at any one time
As you say Robert, every thing is relative. So if you scaled up the diameter of the stator and rotor you could use 0.4mm copper wire. But would that actually increase the output proportionally?
Hi Rob , with the STL files is there a special trick to a successful print or a problem with gcodes ? Tried 3 times now and keep having trouble appreciate anyone for guidance
Have you talked about axial flux motors before? I saw someone use those motors for a wind turbine generator, id love to hear your opinion on that. Love your channel thanks a bunch!
I have theory all life flows in the same pattern the Fibonacci sequence the golden ratio. We need to apply this to coil wraps and magnet placement to create no drag no resistance generator
Just theory a though. I am by far no electrician lol all though last few months been studying magnetism and electricity
Hey Rob nothing wrong with sque the magnets to the same angel as coils lol lol cutting it at a small angle will give the best results so sque both one a just a little more than the other the out put goes down a touch but less force to turn goes down quicker
if you have two tuning forks of the same frequency if we hit one dose the other start singing dose the second one slow the first ones singing water is called ice liquid steam maybe plasma if in right con but are they all water do you make a coil sing but electric dont go though air but it will if plates are very close across the two lines dont work and there is diff in caps laden jar also some things take what magnitizem amps they need others will act like a hole with no bottom until so hot they blow those are the fun ones to tinker with the ones of old in glass under vacuum dont blow as easy of the sold state the best to play with is the harder to find like the diodes with cool metal inside resistants not always a loss there is a almost perfect way to build a inductor ac resistance and dc resistance is not the same period!! another thing if we know the distance between two corners of a triangle and know the angel of another could we make a close estimate of how far up our drone or kite airplane or any thing else is the human eye can not see detail that far away definity impossible to see detail at say 200 to 250 thousand miles up but a drone battery would die before that hell is the moon not 244k miles away now that would be one hell of a battery if we was flying a drone over the ocean it would disappear from bottom to the top because of a thing called vanishing point the triangle from our eye to the drone "looking like setting on top of the water from our view" back of across the water to our feet from feet to our eye makes up this elongated triangle the more elongated the less light can reflect back to our eye the bottom of our drone will disappear first because of this them if we keep going it all will disappear we will need a good zoom lens to bring enough light back in to see it again no one has ever seen a boat go over the carve lol did it truly go over if zoom lens bring it back over that carve same thing with the sun lol lol before you parrot test YOURSELF the foolish is where you find the truths no one needs to know you was foolish enough to test instead of parrot others lol rob has to know this stuff i am not writing this to him no one wants the never ending onslot of insults by tring to show some one truth
Robert is correct in saying you can't get more power than the wind turbine is designed for , no matter how good the generator is .
I want a 7 kw with a 30amp max output just like the one u can buy to run a house. How big do the magnets need to be
How are you planning on TURNING it is the more important question. That's a big generator.
How would one determine the optimum ratio of the copper wire used to make the 180 degree turn from north to south as opposed to the straight- line generation sector of the generator thru increased axial length to be the most efficient in terms of cost to returns; would the magnets be the determining factor?
Awesome work! Really amazing !👍👏👏👏👏👏
Exactly what do you mean by removing the top or the bottom (at around 50 seconds or so)?
What was wrong with the thunderbolt version you did, you got 145v out of it
This is also a lesson in modesty which is refreshing.
Forgot to say wish you were my science teacher back in the day
Great vid 👍 thank you 👍
Great and fascinating project!
Robert, are these files available on Tinkercad yet? I looked in your designs and couldn't see it. Thanks for all your work. I have printed 8 ugrinsky blades inspired by your video. It runs in the slightest breeze and I intend to use it to heat a 12v element in a radiator.
What about using a ahort cut off of PVC pipe as the stator and coil the wire around? It will get more of the wire closer to 1 and add phases by grouping the wires when you wrap them! What do you think?
What does the waveform look like?
More like a square wave or more sinusoidal?
Hi Rob thanks for answering the wire size, I saw someone on the internet creating their own serpentine generator and he was saying the creating a larger magnetic north by having 3 North's then 3 south's etc etc produce a larger field and hence a larger voltage, what's your thoughts
i don't think it will help much - you need a changing magnetic field and it need to change for each length of wire that goes through it - if you have a broader field the field changes more slowly with respect to rotational speed - or at least that's how i see it - but i could be wrong
@@ThinkingandTinkering
Ah i see thanks