I don't know if you'll ever come up with an item that people will say "Yep, that's the one I am going to build", but the real prize watching your videos is the education and inspiration. I truly believe that you are getting people thinking about how things work and how every aspect could possibly be improved. I've always been into physics and electronics, but I feel that I have a much deeper understanding of these areas having watched your videos. So, thank you Rob, for all that you do.
I'm going to have a go at a variation of this generator. I hate resin and winding coils so I really like the less is more philosphy on this. For small wind the efficiencys are miniscule anyway.
Hey I’m all the way from Sri Lanka (Ceylon) I’m actually a photographer but I built my own cnc machine thanks to people like you who share knowledge. Was never a A grade student but I love experimenting and creating stuff. Thank for your inspiration Wish you great heath and a beautiful life as well say in Singhalese Ayubowan
I look into battery Chem, I find your channel. I start making little hobby generators, I find your channel. I start printing homemade generators and look for designs, you're here again. I wish RUclips would actually notify me when you uploaded so I could find your things sooner, you always make the best content.
45v O/C doesn't really mean anything of course, but judging by the comments lots of people like it! Next Robert should do a van der graaf generator and 'generate' 20,000V....
The meter he is using has a built in load, listen to the previos videos. He GB ives you the make modle and loading built in. He thourough and tries not to be dull and repetitive.
@@chriskelly4619 Well I kind of agree that voltage does not say anything without knowing the resistive load or the actual power draw. Just slap a power resistor in series, tell us the value and everyone is happy.
You've actually got me ordering an Elegoo this month thanks to all these videos mate! Some great explainer over the past couple of weeks and it's been fun to see the evolution. Looking forward to trying to put together some of the best best elements together as one full build (once I get to grips with printing). I will of course give you a full credited update with whatever I manage to get together! Thanks as always!
i JUST LOVE WHEN YOU MAKE SOMETHING ULTRA BETTER THAN WHAT YOU MADE BEFORE ROBERT. THIS IS WHAT PUTS A SMILE ON MY FACE, USING ONE'S MIND FOR THE BETTER. This is what really irks me to no end with items for sale in the marketplace Seems making headway with technology is a dead art form. Good video with great results.
Such a great design! 44 Volts out of a plastic flywheel is great. I'm sure you thought of this, but what about putting another serpentine coil on the inside? Make the magnet flywheel shaped like a jar lid to allow room for the coils to generate off of the reverse side of the magnet. Two side of a magnet, double the potential!
@Robert Murray-Smith Maybe that could be a future video? If so, I can't wait to see the results!!! It would essentially be a dual power source. Add a third on the bottom, too!
A wacky idea I have for a generator is to have a hollow torus with ball magnets inside and wire winded around the torus. Then there are a number of ways to move the inner ball magnets, one being with another magnet that rotates around the perimeter. As the balls move through the hollow torus, the magnetic field will induce a charge in the coil wrapped around the torus. What do you think?
You started the video with pulling a string and ended it with pulling a string. Love it. With that voltage it makes it practical for my 12 volt off grid system. Love this one.
@@ThinkingandTinkering Things that make no sense to me 🤔 Have a you tube channel where you make generators... with a 3 D printer. 😂 40 % of the peeps in my area are off grid, I don't know a single person with a 3 D printer, I've been off grid 8 years now. Now make generators with welders and grinders like actual OFF GRID People live and I'll follow you, like you used too.....
Interesting and by moving the magnets to the horizontal position you have moved more of your mass to the outside edge at least slightly improving the flywheel effect.
I'm loving learning from you! Thank you so much.... I've always felt electric is my weakest subject. Though I've always been a inventor of sorts... you are giving me info that I can understand...
That's probably the best homebrew generator demo I have seen yet. Awesome result! 45v from such an easy design is impressive. Just one question; why no read of current & voltage drop under load? would only take another few seconds to do. The curious amongst us are left itching for the overall wattage.. What RPM did you get with the (ingenious) ripcord PM? Surely you have an old tachometer knocking about?!
rough guess of around 700 +/- 40 rpm. figuring ~6ft cord (~2m) , a ~2in spindle, and around one second for him to pull the cord. My math may be wrong but the circumference of the spindle is about 6in. two rotations per foot, 12 rotations per second lands at 720 rpm. all of this is based off of estimated scaled measurements. Hopefully Robert will answer your other questions, but he does tend to take a while at best...
My tac meter said fast enough for a good reading. Robs using a thin gage wire for his coil. Notice that he tells you exactly how he made it. More turns means higher voltage. Using thicker wire means more amps but less turns of wire, so lower voltage. Best bet is build one and do your own readings. That's the world of TnT🤠
@@archibaldvonkranski8881 Agreed in part - however, some of us would be more inclined to replicate if we had an expected result to go by, to justify our efforts.. I do feel Rob is ever so slightly erroneous in this.. Thoroughness should be a cornerstone of science IMO.. whatever the cost may be. If I could see it doing an amp or more I'd seriously consider building one myself, as it stands, I know of other designs that would definitely do over 46w in this form factor, if I needed a DIY gen. like this. Often easiest to just whack some n52's in an old synchronous thing really. It's still recycling/upcycling, and no 3d printer needed. Most often the real thing is unparalleled. (premade PMA)
@@reeferbeleafer9912 I agree the ends should justify the means and cost. Robs not offering a magical solution to your/the energy crisis. He shares the concepts and blue prints. I'm an Australian so solar beats most mechanical generating hands down. We still rely on coal for majority of our power tho. Watch the last 12 months of robs videos and you'll find he's not the solution but you are.
Amazing lil thing! Now with opposing magnets on both sides of coil. N on one side S on other. Make a hollow cavity for coil or sandwich it between plates.
great work , now attach an outer rotor to the inner rotor so that the serpent coil will be sandwiched in the middle between two magnets and check if the output will be doubled with lower rpm's . All the best .
no - it won't - the output doesn't depend on the number of magnets beyond a level - it depends on what force is input and what the efficiency of the machine is
@@ThinkingandTinkering physically higher magnetic field means more efficiency on which same output power with lower rpm, i am talking after reading some really deep books in this field or i might be wrong hope not , all the best , it is a huge breakthrough since your first video about turbines generator.
@@ThinkingandTinkering - I was a protyping tech, building functional proof of concept models and electronics to sell ideas to customers before retiring. I 've wanted a 3d printer of my own since they were $10K monsters that sat in closets in the bosses office as a trophy to his importance. Since watching your fan/generator video I had some some ideas to add some teflon low friction parts (blade carrying shaft and horizontal disks above and below the blade disk and glueing axial.disk magnets on it and the coil/ magnet fixture to levitate the blade assy to reduce friction. The printer is now on its way. You"re so bubbly and full of enthusiasm. I would have liked to have been the guy who built your ideas for fun and profit.
Fantastic Rob. Way to show there's always room for improvement without making it more complicated. Looks like my werly birds are getting a makeover 🤔......
I think you could get up and down sections even straighter (more straight?) if you made plastic separators in the form of up and down facing alternating triangles or trapezium shapes instead of rectangles. Like V A V A V A.
cheers mate - good tip - I do know it an tend to print rough as I want the prototype quickly - I would use the tip in more finished machines not in ideas I am still working out if it was me
Very nice! Please let us know the number of turns and the wire gauge that you used. The deep groove bearings used as radial bearings can take a bit of thrust as well. You could probably eliminate the thrust bearing. A heavier load would bring it to a stop sooner, but an impressive amount of spin time nonetheless.
Funny, this is the close to the design I was thinking of for a generator inside the Darwin wind pipe. Imagine a number of turbine blades with a ring around the tips - like the small helicopter toys - around the ring are the magnets. Blades are inside the pipe & free to spin on either a central bearing or with support around the ring. The coil is as you have it here but around the outside of the pipe.
Thank you very much Robert and Luke!! Awesome video , as always!! Now,,,, I have to find someone who Owns a 3D printer!! This has started the Old Gray matter agitating!! Yay 🎉 Thank you again!! Andrea and Critters.. ...XxX....
hello Robert, i would suggest one small but arguably better improvement: printing a rotor so that the magnets are outside the stator, rather than inside, would increase the speed at which the magnets are passing over the wire and it would eliminate the chance of magnets flying off the rotor, due to centrifugal forces. on the other hand, you could increase the power output density if you print multiple wire-holding rings, for example, in front and behind the magnets so both sides of the magnet are being exploited
I believe that the weight of the magnets already contributes to the simalar effect of a flywheel. Based on what you explained here on top, I cant help to conclude that regtangular or even a square magnet might even produce more and stronger magnetic flux, that can also be concidered the maximum use of the space in the flywheel for the purpose of the wire. This was truly impresive.
Hello Robert! Why did you use only one side of the magnets? If you use two coils, one under the magnet and the other one above the magnet, you may come up with double the output. Only my 2p of thought for this. The difficulty did not even rise. So have a nice day and weekend, while I am trying to build an actual windcatcher on a pipe. Sincerely your magicworx
Rob, we need to bottle your great facility with explanation, and that boundless enthusiasm! The next step is to get yourself a decent microphone, and perhaps a smidgen of home brew acoustic engineering ....
I do have a zoom H2n mate and I used to use it but I got the same comments - I suspect it's because I am not in a studio rather than the quality of the microphone
Thinking in terms of fly wheels, if you place the (rotor) magnets on the outside and the (stator) coil on the inside, you can get more magnets and a greater weight ratio for the rotor. The magnets would be held in the rotor by centrifugal force. Additional weight can be added to the outer rim of the rotor as well. Well done Dr. Smith. I love this design.
@@ThinkingandTinkering Id pull magnets out of old harddrives. I only have several hundred drives on my shelf from my computer recycling days. Can you say teck pack rat. Each drive is 2 lbs aircraft aluminum.
I built a generator out of an old ceiling fan by installing rare earth magnets around the edge and i get that level of voltage out of it just spinning by hand.. I'm not sure they use serpentine wingdings but i suspect its that way... great video again TnT
Cool project. Perhaps an arrangement of magnets under the rotor would lessen the load and friction on the thrust bearing? Maybe eliminate it completely and use magnetic suspension? Anyway, thanks for your efforts.
I've had some success at printing my own bearings and bearing housings for use with air-soft pellets and buckshot pellets, with the idea being "how can I......in a post-apocalyptic world?" I'll make a video about it someday, but I thought you might be interested. It got my gears turning. 😉
Looks brilliant. However, it leaves the question of how much current it produces at the output voltage. Also, if you put make it into a fan blade and add it to a Darwin wind catcher, it could be a great wind generator.
Congratulations! Now something popped up my mind watching this video 3 times. You have your conductive ink. Could you roll it up on a printed page with this same principle? That would be a printed stator without copper. Don’t know if I’m clear enough to express what I mean.
Good one. Your axial mighty mite used the same principle: the nails were at 90º to the wire, and were alternately polarized by the magets (reluctance?) on the rotor, even while they ran their field parallel to the wire in between. I think that your axial stator could achieve the same by adding an iron core to each winding post: the field would cross each wire, then magnetize each core at 90º to the wire, then cross the wire again.
Your videos have always been great, but the 3D printer has really sped things up over the old days when everything was chiseled from granite. I really enjoy your channel. Have fun.
Wow that really is a big difference . I wonder if the coil can be wound the same but adding 3 times as much but in a way that it sticks out further at the sides . It will make the circumference bigger but may add another 80 volts or so .
@@ThinkingandTinkering yeah sure but what is the point of diminishing returns ? How far does the magnetic feilds strength cut through the wire . Half inch or 1 inch . I am thinking less than half inch from my play with the attraction of this size magnet .
This is awesome :D thank you for this video :) You are very close to making my dream “magnetic planetary gear”… instead of a single internal rotor with magnets, create a middle rotor with “modulators”, and an internal rotor with magnets. Run a Dc current, and there will be a rotation reduction or multiplication… run an Ac frequency, and there will be an addition of rpm 😮
if you make the center a little lower and add the flat wind wheel you made last week(?) it would be a very compact wind generator.. of course you would probably need a cover for the coil... this one almost makes me want to get a printer!
Thank you for the very informative video series. I'm bowled over as this is EXACTLY WHAT I NEED 👍👍 How many windings have you put on the serpentine coil please?
I think it would be awesome to go in the other direction - i.e. make a motor out of it. Looks perfect for some kind of bike hub motor. Of course it's single phase, but perhaps with a simple encoder or commutator it might be possible to control the direction.
OK, I'm sold. Serpentine it is. I'm still going to use bike wheels. But probably only 12-14 inchers. And I just had another silly thought I hope I can picture with words: One of your fancy new vortex turbine thingies, the Double Ess Shaped ones? Mount one horizontally, with a square/rectangular duct allowing wind flow from our Darwin's Turbine to pass over half of it, the other half ducted in. Since the windflow from the Darwin's Turbine is a concentrated flow, it wouldn't need to be that big to get some serious power.. I need to find funding to try this. Might spend about $100 on a prototype, and then try a GoFundMe for a larger scale model. And I just had another thought about using the turbine system described in a solar-powered thermosiphon...
Add some weight to it for more flywheel effect Rob. Absolutely brilliant. Thought!! Would making the plastic formers iron, ie giving it an iron core, improve it further?
So Robert,when are you going to scale something up that can be practical to use, for say powering an average family home? Or charging a battery bank for said home?
The predecessor of this video, the flywheel flashlight, is a practical solution for emergency lighting. It's better than the crank flashlight I bought. He likes making small projects that are small enough to be cheap and accessible. If he scaled up e.g. stacking the savonius turbines (one of the easiest quickie projects) to make a 10x6 wall you'd have hundreds of hours of 3d printing, a large frame that would need to made of steel and with real bearings, many hundreds of dollars in magnets, and a couple of miles of wire to wind into coils. Instead of a project that hundreds of people can do for $10 you get a project 1 person in a million might do. Scaling up is hard.
powering a home or charging a battery would be quite the system... that's going to require some massive power. I did see one youtube some people making wind generators that can put out up to 200 watts. That was at 2k rpm. Without a target wattage it would be hard to fulfill that request.
Just a thought from nova scotia. That is the best. Now here is my humbly submitted upgrade. Could you create a second ring of magnets and mount them in a fixture around the outside of your coils, and then some how rotate the coil or else “gear” the inner and outer magnet rings together. Wouldn’t that then put the output through the roof! Be safe and keep up this very interesting theme. Brent ( a retired “tinker” )
Hi. Thanks for educational videos. I am trying to find the thrust bearings you have, but I can't find the 22x35x10mm. Can you please provide a link to the one you bought?
Hi Robert, I think it could be even more efficient if the rotor also had a set of magnets on the other side of the stator, making the magnetic field also exactly 90 degrees with respect to the wires. So a set of magnets on a ring on the inside, and a set of magnets exactly placed on the outside with nord-south obviously opposed.
it would mate - but magnets are expensive it might be an idea to put another coil in as in this model the magnets were UK£3.60 and the wire was 35 pence
So what if the “outer set” would not be magnets but iron plates with the size to cover one north and south pole magnet. This still could direct the magnetic field at “more” 90 degrees. Also still compatible with an extra set of coils. Of course not KISS. But could optimise the use of the most expensive parts.
then get some steel fence wire to go around that edge & reclaimed speaker wire , put the steel in a drill & single wind the insulated copper speaker wire around it ,join one end together Then add that shorter steel cored copper winding as the second winding over the copper band.. you now have a secondary winding to tap thats less volts But higher amps per revolution -to be determind-
This is perfect for your vertical wind turbines. Can't wait. How do you design and print so fast? It takes me days and many failed prints, on allot simpler designs. It is great stuff pal.
love your videos and laughter, i am a self learned tinkerer and was wondering how these would work in an actual generator setup. also if these would be stackable to form a compact but powerfull portable generator.
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
I don't know if you'll ever come up with an item that people will say "Yep, that's the one I am going to build", but the real prize watching your videos is the education and inspiration. I truly believe that you are getting people thinking about how things work and how every aspect could possibly be improved. I've always been into physics and electronics, but I feel that I have a much deeper understanding of these areas having watched your videos. So, thank you Rob, for all that you do.
The rose generator is my "I'm going to build that!"
When SHTF, "Makers" are going to be the best off. 👌
This is one of the ones that I am definitely going to make. I have multiple printers with octoprint, and I am sending the sliced models to them now.
I'm going to have a go at a variation of this generator. I hate resin and winding coils so I really like the less is more philosphy on this. For small wind the efficiencys are miniscule anyway.
lol - cheers mate
I tune in here just to hear Robert cackling like a madman, and its worth it. The science and the fun, all comingled. Awesome!
lol - cheers mate
@@ThinkingandTinkering How to determine the length or width of the jib bolts for building/winding the coil?
You have absolutely the best mad scientist laugh because it’s so full of genuine joy instead of malice!
Truly intelligent people, take the hardest concepts, and explain them in the most simplest, logical way. Thank you so much sir😊.
Hey I’m all the way from Sri Lanka (Ceylon) I’m actually a photographer but I built my own cnc machine thanks to people like you who share knowledge. Was never a A grade student but I love experimenting and creating stuff. Thank for your inspiration Wish you great heath and a beautiful life as well say in Singhalese Ayubowan
Keep it up Man 👍👍👍.
I look into battery Chem, I find your channel. I start making little hobby generators, I find your channel. I start printing homemade generators and look for designs, you're here again. I wish RUclips would actually notify me when you uploaded so I could find your things sooner, you always make the best content.
wow cheers mate - I think there is a little bell you have to click if you want notifications
Please Robert, put on a load.
Or charge a battery wind power overnight.
Then the possibilities will be realised.
Cheers
45v O/C doesn't really mean anything of course, but judging by the comments lots of people like it! Next Robert should do a van der graaf generator and 'generate' 20,000V....
The machine he uses has a static load
@@hive_indicator318 yea he got it because of these comments
The meter he is using has a built in load, listen to the previos videos. He GB ives you the make modle and loading built in. He thourough and tries not to be dull and repetitive.
@@chriskelly4619 Well I kind of agree that voltage does not say anything without knowing the resistive load or the actual power draw. Just slap a power resistor in series, tell us the value and everyone is happy.
You've actually got me ordering an Elegoo this month thanks to all these videos mate! Some great explainer over the past couple of weeks and it's been fun to see the evolution. Looking forward to trying to put together some of the best best elements together as one full build (once I get to grips with printing). I will of course give you a full credited update with whatever I manage to get together! Thanks as always!
I don't care about credit mate I just want to see what you do I am sure it will be awesome give me a heads up will you cheers
i JUST LOVE WHEN YOU MAKE SOMETHING ULTRA BETTER THAN WHAT YOU MADE BEFORE ROBERT. THIS IS WHAT PUTS A SMILE ON MY FACE, USING ONE'S MIND FOR THE BETTER.
This is what really irks me to no end with items for sale in the marketplace Seems making headway with technology is a dead art form.
Good video with great results.
thank you mate and I am glad you liked it
Excellent demonstration of applying first principles thinking. You are an awesome physics teacher!
cheers mate
Such a great design! 44 Volts out of a plastic flywheel is great. I'm sure you thought of this, but what about putting another serpentine coil on the inside? Make the magnet flywheel shaped like a jar lid to allow room for the coils to generate off of the reverse side of the magnet. Two side of a magnet, double the potential!
it's a good idea mate and you are quite right I have thought about it lol
@Robert Murray-Smith Maybe that could be a future video? If so, I can't wait to see the results!!! It would essentially be a dual power source. Add a third on the bottom, too!
A wacky idea I have for a generator is to have a hollow torus with ball magnets inside and wire winded around the torus. Then there are a number of ways to move the inner ball magnets, one being with another magnet that rotates around the perimeter. As the balls move through the hollow torus, the magnetic field will induce a charge in the coil wrapped around the torus. What do you think?
Legend👍. I love watching your videos. There's always so much food for thought. You're a natural teacher.
As ever educational, entertaining and inspirational- and making physics fun is no mean feat!
You started the video with pulling a string and ended it with pulling a string. Love it. With that voltage it makes it practical for my 12 volt off grid system. Love this one.
cheers mate
@@ThinkingandTinkering Things that make no sense to me 🤔
Have a you tube channel where you make generators... with a 3 D printer. 😂
40 % of the peeps in my area are off grid, I don't know a single person with a 3 D printer, I've been off grid 8 years now.
Now make generators with welders and grinders like actual OFF GRID People live and I'll follow you, like you used too.....
"45 Volts!" Robert cackles maniacally, with good cause! Well done!
cheers mate
Watching these generator videos avidly. Getting better and better!!!
cheers mate
Thank you. lol few hours after watching this I'm half way to finish making one. hopefully getting decent volt too.
Feels like i'm back in school again.
but with the coolest teacher 👍
lol - cheers mate
Interesting and by moving the magnets to the horizontal position you have moved more of your mass to the outside edge at least slightly improving the flywheel effect.
yep
I'm loving learning from you! Thank you so much.... I've always felt electric is my weakest subject. Though I've always been a inventor of sorts... you are giving me info that I can understand...
Amazing enthusiasm for a simple subject 😊thank you
Truly magnificent sir.
thank you mate
Wow! Outstanding once again, Rob.
cheers mate
That was absolutely amazing how much power you got out of that little thing by spinning it like a top.
We have no idea how much power it is putting out! Voltage is just potential, we need the amperage to calculate power (watts)!
for sure mate
That's probably the best homebrew generator demo I have seen yet. Awesome result!
45v from such an easy design is impressive.
Just one question; why no read of current & voltage drop under load? would only take another few seconds to do.
The curious amongst us are left itching for the overall wattage..
What RPM did you get with the (ingenious) ripcord PM?
Surely you have an old tachometer knocking about?!
rough guess of around 700 +/- 40 rpm.
figuring ~6ft cord (~2m) , a ~2in spindle, and around one second for him to pull the cord. My math may be wrong but the circumference of the spindle is about 6in. two rotations per foot, 12 rotations per second lands at 720 rpm.
all of this is based off of estimated scaled measurements.
Hopefully Robert will answer your other questions, but he does tend to take a while at best...
My tac meter said fast enough for a good reading. Robs using a thin gage wire for his coil. Notice that he tells you exactly how he made it. More turns means higher voltage. Using thicker wire means more amps but less turns of wire, so lower voltage. Best bet is build one and do your own readings. That's the world of TnT🤠
@@archibaldvonkranski8881 Agreed in part - however, some of us would be more inclined to replicate if we had an expected result to go by, to justify our efforts.. I do feel Rob is ever so slightly erroneous in this.. Thoroughness should be a cornerstone of science IMO.. whatever the cost may be.
If I could see it doing an amp or more I'd seriously consider building one myself, as it stands, I know of other designs that would definitely do over 46w in this form factor, if I needed a DIY gen. like this. Often easiest to just whack some n52's in an old synchronous thing really. It's still recycling/upcycling, and no 3d printer needed. Most often the real thing is unparalleled. (premade PMA)
@@reeferbeleafer9912 I agree the ends should justify the means and cost. Robs not offering a magical solution to your/the energy crisis. He shares the concepts and blue prints. I'm an Australian so solar beats most mechanical generating hands down. We still rely on coal for majority of our power tho. Watch the last 12 months of robs videos and you'll find he's not the solution but you are.
@@reeferbeleafer9912 it's not hard to make these things out of stuff you can find laying around. Give it a go😎
Amazing lil thing! Now with opposing magnets on both sides of coil. N on one side S on other. Make a hollow cavity for coil or sandwich it between plates.
indeed
You have convinced me to use snake oils for my next, new, latest labors in mycrohydro madness!
You hit this one for six, Rob! Love the design!
cheers mate
All your videos are perfectly understandable. Thank you.
great work , now attach an outer rotor to the inner rotor so that the serpent coil will be sandwiched in the middle between two magnets and check if the output will be doubled with lower rpm's . All the best .
no - it won't - the output doesn't depend on the number of magnets beyond a level - it depends on what force is input and what the efficiency of the machine is
@@ThinkingandTinkering physically higher magnetic field means more efficiency on which same output power with lower rpm, i am talking after reading some really deep books in this field or i might be wrong hope not , all the best , it is a huge breakthrough since your first video about turbines generator.
I only stumbled upon your channel.a few months ago but you've already inspired me to buy a 3d printer to bring your and my imaginations to life.
oh wow - awesome - thanks for letting me know mate
@@ThinkingandTinkering - I was a protyping tech, building functional proof of concept models and electronics to sell ideas to customers before retiring. I 've wanted a 3d printer of my own since they were $10K monsters that sat in closets in the bosses office as a trophy to his importance. Since watching your fan/generator video I had some some ideas to add some teflon low friction parts (blade carrying shaft and horizontal disks above and below the blade disk and glueing axial.disk magnets on it and the coil/ magnet fixture to levitate the blade assy to reduce friction. The printer is now on its way. You"re so bubbly and full of enthusiasm. I would have liked to have been the guy who built your ideas for fun and profit.
That's brilliant! Also really shows the advantage of speed at the rim.
thank you mate - I think it does too
Another cool thing about this design is that the frequenzy is going to be quite high so the resistance in the wire is less of a problem.
outstanding you gave the serpent a big "KISS" well done and thankyou for sharing
cheers mate
Absolutely outstanding Robert. Thank you so much for these posts.
cheers mate
Fantastic Rob. Way to show there's always room for improvement without making it more complicated. Looks like my werly birds are getting a makeover 🤔......
awesome mate - it occurred to me too that roof whirlybirds could be easily adapted to generate with this idea
Great work... and also much better voltage!
for sure mate
I'm printing a copy of the stator, I shall be able to play with it this afternoon....Thank you.
Nice leet me know how you get on cheers
I think you could get up and down sections even straighter (more straight?) if you made plastic separators in the form of up and down facing alternating triangles or trapezium shapes instead of rectangles. Like V A V A V A.
I am not sure mate - but interesting tight - thanks for sharing
Rob there’s a way to make circular part more smooth in tinkercad. Just set it to 60 sides then copy and rotate by 3 degrees, 1.5,.75,.375 then group
cheers mate - good tip - I do know it an tend to print rough as I want the prototype quickly - I would use the tip in more finished machines not in ideas I am still working out if it was me
add regenerative braking to recover some of the generated energy so that you can keep it at a near constant spin speed.
Bloody marvellous Rob !
cheers mate
Very nice! Please let us know the number of turns and the wire gauge that you used. The deep groove bearings used as radial bearings can take a bit of thrust as well. You could probably eliminate the thrust bearing. A heavier load would bring it to a stop sooner, but an impressive amount of spin time nonetheless.
Tapered bearings similar to car wheel bearings would be a great alternative to running a standard bearing and a thrust bearing.
0.1mm and 350 turns
@@ThinkingandTinkeringI’m assuming that’s about 1w?
Always Impressive Robert .. amazing what you have been doing!! You are great at teaching the world.
wow - cheers mate
Funny, this is the close to the design I was thinking of for a generator inside the Darwin wind pipe. Imagine a number of turbine blades with a ring around the tips - like the small helicopter toys - around the ring are the magnets. Blades are inside the pipe & free to spin on either a central bearing or with support around the ring. The coil is as you have it here but around the outside of the pipe.
it would work well there mate and it is on my mind too
Hi Robert, Your a master of learning
Inspirational, fun, and a joy to watch🥰
awesome lol
Would it make sense to do psudo magnetic levitation here like in video 1450 instead of a bearing?
Thank you very much Robert and Luke!!
Awesome video , as always!!
Now,,,, I have to find someone who Owns a 3D printer!!
This has started the Old Gray matter agitating!! Yay 🎉
Thank you again!!
Andrea and Critters.. ...XxX....
lol - bless you Andrea
Happy Spring! 🎉
hello Robert, i would suggest one small but arguably better improvement:
printing a rotor so that the magnets are outside the stator, rather than inside, would increase the speed at which the magnets are passing over the wire and it would eliminate the chance of magnets flying off the rotor, due to centrifugal forces.
on the other hand, you could increase the power output density if you print multiple wire-holding rings, for example, in front and behind the magnets so both sides of the magnet are being exploited
I believe that the weight of the magnets already contributes to the simalar effect of a flywheel. Based on what you explained here on top, I cant help to conclude that regtangular or even a square magnet might even produce more and stronger magnetic flux, that can also be concidered the maximum use of the space in the flywheel for the purpose of the wire. This was truly impresive.
yes it does and you are right square magnets would be better
Awesome 👏
Great masterclass, interesting and easy design!
Thanks mate 🌟
thank you mate
Hello Robert!
Why did you use only one side of the magnets? If you use two coils, one under the magnet and the other one above the magnet, you may come up with double the output.
Only my 2p of thought for this. The difficulty did not even rise.
So have a nice day and weekend, while I am trying to build an actual windcatcher on a pipe.
Sincerely your magicworx
Rob, we need to bottle your great facility with explanation, and that boundless enthusiasm!
The next step is to get yourself a decent microphone, and perhaps a smidgen of home brew acoustic engineering ....
I do have a zoom H2n mate and I used to use it but I got the same comments - I suspect it's because I am not in a studio rather than the quality of the microphone
Anyone else read the title screen as "Thinkering and Tinkering"? :) Thank you for another lovely video.
lol - I haven't if that h helps lol
Thinking in terms of fly wheels, if you place the (rotor) magnets on the outside and the (stator) coil on the inside, you can get more magnets and a greater weight ratio for the rotor. The magnets would be held in the rotor by centrifugal force. Additional weight can be added to the outer rim of the rotor as well. Well done Dr. Smith. I love this design.
magnets are expensive mate - UK£3.60 in this model - wire is cheap - 35p in this model - I wouldn't rush to more magnets if it was me
@@ThinkingandTinkering Id pull magnets out of old harddrives. I only have several hundred drives on my shelf from my computer recycling days. Can you say teck pack rat. Each drive is 2 lbs aircraft aluminum.
@@ThinkingandTinkering LOL You are almost ready for a 400K coin. Well done sir.
I built a generator out of an old ceiling fan by installing rare earth magnets around the edge and i get that level of voltage out of it just spinning by hand.. I'm not sure they use serpentine wingdings but i suspect its that way... great video again TnT
Cool project.
Perhaps an arrangement of magnets under the rotor would lessen the load and friction on the thrust bearing? Maybe eliminate it completely and use magnetic suspension? Anyway, thanks for your efforts.
I love how you’re nearly 2000 videos in, and still laugh like a maniac when it works :)
lol - well I like it when it works lol
The video numbering system threw me at first. "Wow! They did this in 1869?" LOL ;-)
I've had some success at printing my own bearings and bearing housings for use with air-soft pellets and buckshot pellets, with the idea being "how can I......in a post-apocalyptic world?" I'll make a video about it someday, but I thought you might be interested. It got my gears turning. 😉
I have printed my own bearings mate - I don't use them much as they don't last
Brilliant....I need a crunchie now.
and who doesn't lol
Amazing. That is awesome! I need to save for a 3d printer. That would be perfect to charge my camping trailer batteries.
awesome
This coupled with your flat winddisk is viable ,practicle and simplicity in motion. Make a prototype and I will be buying in!
What a joyful duo!
cheers mate
Looks brilliant.
However, it leaves the question of how much current it produces at the output voltage.
Also, if you put make it into a fan blade and add it to a Darwin wind catcher, it could be a great wind generator.
power is going to be around what you expect - there is no 'breaking the laws of physics' here mate
Congratulations! Now something popped up my mind watching this video 3 times. You have your conductive ink. Could you roll it up on a printed page with this same principle? That would be a printed stator without copper. Don’t know if I’m clear enough to express what I mean.
the ink has a very high resistance when it comes to this kind of work mate - it would work well in electrostatic applications
awesome generator. What was the power output in watts?
no idea
Thanks mate. That was exactly what I was hoping you would do. Looks fantastic. Cheers!
cheers mate
Good one. Your axial mighty mite used the same principle: the nails were at 90º to the wire, and were alternately polarized by the magets (reluctance?) on the rotor, even while they ran their field parallel to the wire in between. I think that your axial stator could achieve the same by adding an iron core to each winding post: the field would cross each wire, then magnetize each core at 90º to the wire, then cross the wire again.
well spotted mate - yes it did
Your videos have always been great, but the 3D printer has really sped things up over the old days when everything was chiseled from granite. I really enjoy your channel. Have fun.
it really has lol
That is an awesome design! Well done sir!
cheers mate
Wow that really is a big difference . I wonder if the coil can be wound the same but adding 3 times as much but in a way that it sticks out further at the sides . It will make the circumference bigger but may add another 80 volts or so .
or use thinner wire
@@ThinkingandTinkering yeah sure but what is the point of diminishing returns ? How far does the magnetic feilds strength cut through the wire . Half inch or 1 inch . I am thinking less than half inch from my play with the attraction of this size magnet .
Now combine the flat feather "vanes" from video 1864 to the top to spin the magnet rotor :)
indeed
Thanks again for another awesome video.
cheers mate
I really enjoy watching your videos. Thank you
indeed
Thank you for the explanation and all of your wonderful content
cheers mate
This is awesome :D thank you for this video :)
You are very close to making my dream “magnetic planetary gear”… instead of a single internal rotor with magnets, create a middle rotor with “modulators”, and an internal rotor with magnets.
Run a Dc current, and there will be a rotation reduction or multiplication… run an Ac frequency, and there will be an addition of rpm 😮
if you make the center a little lower and add the flat wind wheel you made last week(?) it would be a very compact wind generator.. of course you would probably need a cover for the coil... this one almost makes me want to get a printer!
it does need a cover mate - I left it off just so folks could see it but a cover or maybe potting would be a good idea
Thank you for the very informative video series. I'm bowled over as this is EXACTLY WHAT I NEED 👍👍
How many windings have you put on the serpentine coil please?
I think it would be awesome to go in the other direction - i.e. make a motor out of it. Looks perfect for some kind of bike hub motor. Of course it's single phase, but perhaps with a simple encoder or commutator it might be possible to control the direction.
I am not really that interested in motors mate - but I will give it some thought - just for you
OK, I'm sold. Serpentine it is.
I'm still going to use bike wheels. But probably only 12-14 inchers.
And I just had another silly thought I hope I can picture with words: One of your fancy new vortex turbine thingies, the Double Ess Shaped ones? Mount one horizontally, with a square/rectangular duct allowing wind flow from our Darwin's Turbine to pass over half of it, the other half ducted in. Since the windflow from the Darwin's Turbine is a concentrated flow, it wouldn't need to be that big to get some serious power..
I need to find funding to try this. Might spend about $100 on a prototype, and then try a GoFundMe for a larger scale model.
And I just had another thought about using the turbine system described in a solar-powered thermosiphon...
I like bike wheels - they work super well
Add some weight to it for more flywheel effect Rob. Absolutely brilliant.
Thought!! Would making the plastic formers iron, ie giving it an iron core, improve it further?
yrs it would mate but it would also introduce cogging and raise the start torque
So Robert,when are you going to scale something up that can be practical to use, for say powering an average family home? Or charging a battery bank for said home?
I think a practical use for Rob would not be to scale up the size, but scale up the quantity. Cheap and easy builds working together
The predecessor of this video, the flywheel flashlight, is a practical solution for emergency lighting. It's better than the crank flashlight I bought.
He likes making small projects that are small enough to be cheap and accessible. If he scaled up e.g. stacking the savonius turbines (one of the easiest quickie projects) to make a 10x6 wall you'd have hundreds of hours of 3d printing, a large frame that would need to made of steel and with real bearings, many hundreds of dollars in magnets, and a couple of miles of wire to wind into coils. Instead of a project that hundreds of people can do for $10 you get a project 1 person in a million might do. Scaling up is hard.
It would be neat if there was a shelf or table with all the models on display and connected. Like adding new additions to a train table.
powering a home or charging a battery would be quite the system... that's going to require some massive power. I did see one youtube some people making wind generators that can put out up to 200 watts. That was at 2k rpm. Without a target wattage it would be hard to fulfill that request.
@ReadyPete Qualmers with a charge controller, should be able to slow charge from multiple smaller output devices
Just a thought from nova scotia. That is the best. Now here is my humbly submitted upgrade. Could you create a second ring of magnets and mount them in a fixture around the outside of your coils, and then some how rotate the coil or else “gear” the inner and outer magnet rings together. Wouldn’t that then put the output through the roof! Be safe and keep up this very interesting theme. Brent ( a retired “tinker” )
yes you could mate
Thank you. Awesome video.
I'm struggling to find a thrust Bearing for this (35mm x 22mm x 10mm) do you know where I can find one? Thanks!
wow, it runs and runs and runs.....unbelievable long.....thx for the vid.
Hi. Thanks for educational videos.
I am trying to find the thrust bearings you have, but I can't find the 22x35x10mm. Can you please provide a link to the one you bought?
Hi Robert, I think it could be even more efficient if the rotor also had a set of magnets on the other side of the stator, making the magnetic field also exactly 90 degrees with respect to the wires. So a set of magnets on a ring on the inside, and a set of magnets exactly placed on the outside with nord-south obviously opposed.
it would mate - but magnets are expensive it might be an idea to put another coil in as in this model the magnets were UK£3.60 and the wire was 35 pence
So what if the “outer set” would not be magnets but iron plates with the size to cover one north and south pole magnet. This still could direct the magnetic field at “more” 90 degrees. Also still compatible with an extra set of coils. Of course not KISS. But could optimise the use of the most expensive parts.
stick a copper tape band on the outside & so capturing & reflecting the offset field eddy currents back into the winding.
then get some steel fence wire to go around that edge & reclaimed speaker wire , put the steel in a drill & single wind the insulated copper speaker wire around it ,join one end together Then add that shorter steel cored copper winding as the second winding over the copper band.. you now have a secondary winding to tap thats less volts But higher amps per revolution -to be determind-
really/ - ok I will try it
Bless you Robert
and you mate
This is perfect for your vertical wind turbines. Can't wait. How do you design and print so fast? It takes me days and many failed prints, on allot simpler designs. It is great stuff pal.
Now that's a Real Radial flux alternator.I like where the tape is, great idea.😊
cheers mate
The only additional item I would like to see would be a cover and a couple of drainage holes to keep the rain and sea water out.
Just saw a link for your 1kW wind turbine. Is this the stator winding for that? Would this be an improvement if not? Thanks.
Wow!!! That was outstanding good sir 😮👍
cheers mate
Twisted Serpent! Cool title!
lol - cheers mate
🙆♂Brilliant work Rob! You're Awesome! ⭐⭐⭐⭐⭐
cheers mate
love your videos and laughter, i am a self learned tinkerer and was wondering how these would work in an actual generator setup. also if these would be stackable to form a compact but powerfull portable generator.
He's already made one. It's called the wind wall. Check it out ☺️
He used pc fans and poly pipe but incorporate bro😎
already done its ate - it's the wind wall series