I'm genuinely impressed that you actually made a perfectly working toroidal core winder! The inaccuracies you are getting result from the wood construction and a less effective wire guiding system, but the concept is there and is perfect! Well done! You can use printer pickup rollers for driving and guiding the toroid (with plastic washers to form flanges). In fact, you can disassemble an old inkjet printer (you probably can get it for free) and salvage most of the parts required (depending on the printer model: belts, rollers, optical sensors, stepper and drive motors, plus assorted hardware that may become handy in construction), to get yourself a winding machine that will cost you mainly the hours spent building it. Finally, I must congratulate you for making all the information freely available - it's relatively easy to find used toroidal transformers in scrapyards, that can be rewound to meet to personal needs - normally the primary can be used as it is (assuming primary is OK) and the secondary (outer windings) can be taken out and rewound with your machine. I suggest winding experimental 10 turns secondary and measure the voltage obtained, to get the volts per turn ratio (voltage measured divided by ten, normally much less than 1). If you need more accuracy, wind 100 turns, measure and divide by 100 and then multiply by the desired voltage to get the corresponding number of turns, not forgetting the wire gauge must be enough to handle the current (that depends also on the power the core can provide). I believe there are a lot of capable young people that would benefit from this - Transformers are expensive (shipping is expensive too, due to weight). Even a burnt transformer can be salvaged, because the core is normally OK, but then you need to wind both primary and secondary(ies). To calculate primary and secondary turns from scratch, I suggest a very good tutorial from Ampletos (kzfaq.info/get/bejne/h5x3nrZ_y6epqGg.html). It's in Spanish, but if you turn CC on, you can have subtitles in your language - technical information is normally understandable, even if YT translation gets a bit awkward. Long post, in the hope that this may help any enthusiasts out there :-)

I don't care that people are saying that it could be better, that's true of anything. The fact that you made a working toroid coil winder is impressive in and of itself.

It's super impressive work! Something I wonder might help: Currently the wire comes from anywhere on the spool (depending on position of the unravel) to the toroid and this might be causing an innaccuracy in position. I'm thinking if you added a little guide ring in front of the spool (between the spool and the toroid) and thread the wire through it before attaching to the toroid, the wire will always be coming from the same spot. The distance between the spot the toroid will always be the same. I'm not basing this idea on anything more scientific than a vague recollection of a sewing machine feeding mechanism though. :D

This is a lot of work. This man had to do a lot of hands-on basic experimentation work, a lot of design work, a lot of re-design and refinement work, then a lot of work to make it instructional to others, and a lot of work of filming and post-production to make it easy to follow. I do not see a lot of women doing this kind of stuff. Hats off to his intellect and perseverance.

You should replace the DC motor with another stepper, the winding would be much more precise. Anyway this is a smart idea.

That is a *VERY* useful build. For more placement accuracy, I suggest using a swinging arm that is anchored by the spool, with the wire going through an eyelet at the end, positioned as close to the toroid as possible without running into it.

Thank you for showing us this! I watched a video about winding toroids but apparently only half-understood it. Thanks for making this great project!

Magnificent!!! Innovative and nicely done. You asked if there were any suggestions for improvements and the only thing I could see was the need for a feed spool tensioner. But with this comment being a year after posting, Your keen insight has probably already addressed this. 👍

I'm not sure how you would improve the machine but what you have created is VERY impressive, great job Sir!

Between 1978 to 1990 I worked for a company that made Toroids. We made them G.R.O.S.S. and Mu-metal. We also manufactured C cores, E cores and distributor gap.

Regardless of the initial outcome, it's still a proof of concept that actually worked even though you used fairly primative parts and pieces scavenged from other unrelated devices. With some further investment of time and energy, this coil winder will be an intricate part of a much larger apparatus, that will contribute to the building of all kinds of much needed equipment. Well done ! You have an exceptional ability to visualize in 3 dimensions.

Add a DTMF keyboard to input the numbers. It will simplify operation. Keep the rotary switch to access various modes, speed, pause, etc.

It's a very nice build. I like it. I don't really see anything particularly wrong with it at this stage, just needs refining of individual elements like others have said. Improve the tracking of the moving parts, add in some better wire guidance. Personally I would probably 3d print an outer gear ring to replace the belt drive and have it engage a stepper for precise control and no slipping, but that's just me. I do like how on commercial models, the large drive ring is itself a giant spool that you prefill with enough wire to do the job.

This is very appreciable. Although there is always a scope of improvement as per available comments.The PCB shown is the only outsourced requirement, rest is self manageable.Also for thick wire size like swg12/13/14 we have to take the necessary measures of the parts. Again a very very useful successful attempt. All the very best.

This really excellent work. If you were winding a toroidal transformer you would need to have automatic adjustment of the turning mechanism for the toroid as the thickness of the coil increases

For the toroidal core holder, I would have used a solution like the one you used for the main drive wheel, but with spring loaded gripping arms. I would use a spring on the drive wheel also, instead of a wing nut. As for the control system, I'd probably go with a raspberry pi instead of arduino, but that's purely personal preference. I love the simplicity of the interface. I'd probably try to add a linear coil winder also. Maybe using a linear screw to move the coil and wind smoothly.

Well, at the first glance, you need basic improvements that will make the coil more consistent. First you need to count half cycles so every side of the coil should have its own displacement. The inner side of the coil should have a min displacement of the wire diameter and this will guarantee that the wire will not overlap, then the outer displacement should be calculated using the the ratio of the outer diameter to the inner diameter of the coil multiplied by the displacement you set for the inner side. Then you should make some minor modifications in the way you calculate the displacement. You should get another stepper with the highest possible step count, that will give you more accuracy if you counted quarter steps or even less. Then you calculate the displacement for each step or quarter step using the inner diameter of the coil. That will give you a seamlessly consistent and homogeneous coil. It's also good to start the first round at the inner part of the coil and always use that position as the starting position to get accurate changes with each iteration. Last, try to start the DC motor with a slow speed, then you can keep the speedometer controlling the speed while it's rolling untill you can determine the maximum stable speed of rolling. Keep in mind that the optimal speed will ever change whenever you've changed the coil's diameter. Have fun dude 😎👏

Only suggestion I would make is to put some sort of tensioner on the wire coming from the coil... This will improve the winding by double. As it looked like there may have been slack wire winding that allowed it to drift sideways. Othwise a nice looking and well working machine !!

This isn't just cool, this is leading towards JoeBob homie being able to invent their own electronic components at home instead of only in big fancy lab factories. This opens the door for more overlooked geniuses to be able to do their stuff.

Superlative work :) Being a long time coiler i can appreciate the thought, effort and time that went into designing and testing this lovely device. Liked and subbed.

Part of the time the core rollers are on windings and part of the time not leading to uneven winding. Possibly more rollors would help or a way to accurately monitor the degrees of rotation. Right now it's open loop.

Somebody need to give this man a million dollar so the next project can become reality

It looks like you could do with some tension on the spool of wire, in the video it seems like it is wrapped round the coil pretty loosely. I think you maybe tried that with the spring, but some friction on the spool should be enough, also a wire guide is probably necessary to keep the spacing even.

this is one of my favorite channels on youtube

I'm really impressed by your work!!! For a device that has lots of manually created elements (by manually I also mean elements that you made with a lathe but not an automatic lathe) it works really smothly. Of course there are some things to fix to make it more reliable and consistent (irregular gaps between windings etc.) But still, amazing! Just subsribed your channel!

Nice machine, I'd suggest the upright supports would be more stable if the shafts weren't so flexible, also replace the 12V motor with a second stepper

What a thing of beauty. This build is really innovative. I love it. Simple but yet effective. We should collaborate on a build sometime my friend. Cheers!!

Приятно смотреть,смесь человеческого разума с механикой.

Before cutting the wheel, you should plane it so that it's absolutely flat. Could help reduce the wobble.

बहुत सुन्दर एक कम रूपयों में अच्छी मशीन और वर्किंग भी अच्छी पूरी मेहनत से बनी है काम भी अच्छा करेगी थैंक्यू

I remember using a coil winding machine with #46 AWG magnet wire or something and 3000 turns on a 1 inch diameter toroid for a current sensor.

Had to turn off due to the music. However, I love the project. Truly impressive! But.. please consider ditching the music. 👍🏼

Welcome, my dear brother. I hope you continue making a new machine because what you make is very wonderful

A small ingenious machine made of a few pieces of plywood, cheap ball bearings and a few pieces of plastic. Buying such a machine at the store costs more than your car :)

I guess that adding a wire guide at the supply coil would give a neater result, although it would not much affect the functionality of the induction.

Might better to turn your latch around so centrifugal inertia will push it closed, a detent pin would also hold the securely. Wouldn't hurt to put a hinge in the ring, so larger toroids can be inserted.

replace all wooden parts with plastic or metal, use softer and thicker rubber for plastic rollers & calibrate the machine so the wire being wound onto the core has more tension, some sort of wire guide & tensioner would be useful here.

Even after seeing the video we struggle to imagine the concept. God gift. Thanks

Hello, it is amazing design, thank you and congratulations, I subscribed. One point about use of plywood for precision projects, try using hardwood plywood, it will machine smoother, parts will be more rigid and will keep your winding tolerances lower. Also do not leave precision wooden projects unsealed, hygroscopic expansion of plywood panel in XY dimension is 0.2mm/m for each 1% RH and thickness as much as 1mm/m per 1% RH.

3d printer would do wonders, also a V-score groove on the wheel and stepper motor for improved accuracy

Overall, this is a highly informative and enjoyable video for anyone interested in engineering. It showcases your talent and expertise while providing valuable insights and inspiration to fellow enthusiasts. Keep up the great work, and I look forward to watching more of your content in the future 👍👍👍

that's incredible and finally useful device on Arduino)))) and it is not a toy. Great job and tech idea

An excellent video. I watched every second with pleasure.

This is very cool. Quite amazing! I'm sure with this prototype running you can see where and how to refine it. Nice work Mr Innovative, keep on going!

Wonderful projects, building quality is superb, congratulations sir

Looks like it could benefit from something to align the wire coming off the spool to make the winding more consistent, but this is a great idea none the less

Hi, great work! I was do similar machine for standard transformers many years ago (over 30). Speed of my machine was lower to more control of the layering.

Very cool. However, that wandering bandsaw.... Maybe the next project should be making some guides for it? Also, it would be cool to be able to wind much smaller toroids -- like 1" diameter or less. I think that would be difficult though.

To the owner of this channel thanks this is the type of machine i was invisioning in my dreams thanks for making this happen

A very nicely built project.. my hat is off to you, Sir!!

Больно смотреть сколько мучений без 3D принтера.

VERY impressive ! This project must have required Much time and effort. Congratulations.

Nice work. Consider buying a 3d Printer as well.

Numbers were considered magical or mysterious, numbers with the most primes were consider special like 60 seconds in a minute, 60 minutes in an hour etc. It Tesla selected 120 Hz instead of 60, our motors and transformers would be one quarter the size. But with solid state rectifiers converting AC to DC and pulsing a toroid core say at a million hertz wall wart chargers could be made extremely small as well as any AC to DC power supply. I never wound toroid cores, left that job to someone else, just designed them. Were called switchmode power supplies.

YOu are hands down on clever person. Really enjoyed the show.

Натяжение долно регулироватся иначе провод будет болтатся на трансформаторе, или ездить по магнитопроводу.

I agree that your toroidal coil winding machine makes for a good demonstration. However, unless you are making production runs, I would have to question the practicality of the build. I doubt there is enough tension to wind wire thicker than 22 to 24 gauge. Given the size of the shuttle and ring, small internal diameter cores are out of the question. You could reduce the size of the ring and shuttle by using the ring as wire storage and reversing the ring to load wire onto it. A metal ring could reduce size further, but also be harder to drive. Back in the late 1980's I wound and tested prototype coils and transformers. One of the designs required 500 turns of 40 gauge wire on a torroid about 20 mm O.D. I used a 6" wooden handle for a Q-tip with a notch at each end as a wire shuttle. Winding 5 of these units took about 2.5 hours.

That was surprisingly satisfying to watch. Great job :)

There is a major flaw in your project. The rollers that keep toroid in place are fixed. They have to be self-adjustable when you have to fil the toroid with more wire so it becomes bigger in diameter. Also you would be able to fit a bigger toroid, which you can't do now... Otherwise nice project!

Отличное видео и идея, отличный токарный станок для реализации небольших задач! Спасибо

It eould be s good addition to getba few small endmills you can put in the drill. To do plunge cuts in metal, and slow gentile side cuts in woods and plastics Maybe some small cuts in aluminum a 1/4" - 6mm and maybe 12mm- 1/2" and some in-between. Possibly make adapters to allow larger end mills to be used. Maybe an adapter that allows a 3"-4" lathe chuck to fit a drill, then end Mills will fit, and many other things , if you ho that far, just as well build a tilt lathe /mill. A lathe that can double as a mill. It would be small but handy. Allow work about 3"x12" roughly possibly 6" x12" tibe milled s cross slide and mill vise, about anything could be built then, (id use it to build a larger lathe/mill 😜 6"-8" chuck,36" travel/bed)

Literally Brother You are Inventor .., I was seen your many Efforts for This Project.

Well done, impressive work making complex parts by hand! Imagine this guy let lose with a 3d printer

Très belle initiative je vous remercie c'est Vraiment merveilleux.

Nicely done! Something that could be useful: Forward and Reverse! If you add a guide to help improve the wire positioning, this could let the user fine tune the position accuracy by winding or unwinding till it's just right.

Thanks for sharing this build ! Well made !

Mr Innovative, is the user capable of introducing the desired inductance? Input parameters would be toroid diameters, wire copper size. Then the system would compute the needed turns. Just an idea.

I bet the uneven windings are mostly down to the fact the wire doesn't go through a guide after coming off the spool. The way the windings are bunched and spaced in a sort of repeating pattern probably reflects the angle the spool gave it as it unwound.

Much better with the sound off. Fascinating project, looks great.

Excellent! As for improvements maybe make the ring opening larger (to add and remove large toroid coils more easily) - I’d have 2 splits rather than the 1 you have. Also your code can adjust for toroid diameter but can the machine? Maybe need to add adjustment in the 3 supports in/out. Also is your code adjusting for diameter increase of multiple winding layers? Does it auto stop of out of wire? Can the wire diameter be changed?

nice lathe. I've got one too. It's the first time I've seen the wood working attachment actually used on this lathe.

You can be proud of this achievement! Well done, except for the flashing LED which looks like a big fat electrical spark to me and had me backing away from my screen 😉

I heard as well that painted plywoods magnetic permeability and its saturation point is much higher than the one you can find in usual ferrite cores:D

SENSACIONAL MEU AMIGO! PARABENS!

Отлично! Спасибо за идеи! Хороший станочек! Прекрасная работа,золотые руки!

Great engineering work! Thanks for sharing this with us! Will start to buil it soon! Thanks again

I had to hand wind torridial transformers for proprietary power supplies. A machine to help out would have been nice.

Replace your IR sensor by a hall effect sensor and magnet it will solve all your problems

you can use 3 window rollers, take out the rubber ring from 2 of them

Despite some misspelled words, the machine looks as a professonal grade, not production, but professonal! For how much you would sell it for? Like!

Suggestion: Replace the 16x2 LCD screen and the rotary encoder with a touchscreen TFT display. It can help speed up the process of setting up the parameters.

This is a nice design if you need to wind toroidal transformers using a large core. It isn't suitable for winding small RF toroids that have cores under an inch in diameter. There are machines that have an internal bobbin inside of the shuttle. These need to be power wound before being unwound when winding the core.

Damn. Such clean work. I learned a few things. :)

I see several improvements I can make for example a guide arm for the wire(more even spacing and all that), definitely going to print one of these when I get a 3d printer

Good job! Getting stability or robust is only a little step. Congratulations. You gave me a lot of ideas. Really you did.

I feel like adding more indicators, maybe 2 or 4 rather than 1 would help make things more precise. Instead of 1 step per rev, do half or quarter steps, in relation to the amount of indicators.

You made a beautiful thing. Very nicely done!

Awesome build. Appreciate your effort. Lot of effort must have be put to make this. 👍👍 If you were to rebuild what changes would you make ? As I would like to build one like this.

Ur the first person to make this machine I mean diy project

Muy bueno!! Todo de madera y con rodamientos, como me gusta a mí. Un espectáculo. Thanks for sharing your knowledge wiith us!!!!!

I much prefer videos where they show the project working and then how they made it.

Congrats on the project ...but lose THAT MUSIC!

особенно мне *понравилась* пайка проводов к электромотору

Great to see something new. Keep making such projects and all the best!

Идея хорошая, но вот плотность укладки и шаг слишком растянутый и не ровный. Ещё бы неплохо добавить автоматический расчет длины намоточного провода с учетом толщины и требуемые первичные и вторичные обмотки для трансформаторов и генри для индуктивностей.

That's spot on lol Need to make smaller one cud be bobbin type and moves coil out the way be harder to make tho ...that needs a number pad with +100 button lol

A means of pausing system on wire running out would be nice. So your not guessing on wether or not you have enough for project or so you could finish wire on spool and attach additional so to avoid additional waste.

You need lots of improvement 1 the copper wire spoller should have a metal polished hole through which the wire unwinds Will give more even turns Take time out and see a stitching machine , how it's Spool opens up n down but the end portion of thread goes linear 2 Also a little tension on the wire , again like a sewing machine has even tension 3 Your wooden wheel is a bit wobbly, also if it is not balanced like a car/bike wheel it can introduce vibrations at high speeds But excellent work never the less A 3d printer to make parts will go a long way , though not necessary , as you yourself have shown.

Great engineering job. Not all can not do. Only high knowledge person can do. Thanks for edua