How To Wire A Large DC Motor And Control The Speed; Treadmill Motors and Universal Motors 019

[@larndavies6954]

Very informative. Love how you explained all the different options including the hf one you didn't like. You are a KZbin I would happily pay to watch. Your style, explanations and material is fascinating. Thank you

[@Jeremy_Fielding]

Thank you. Right now the plan is to continue posting my videos for free, but I started a Patreon account if you would like to support my channel. I am using that to fund the projects. More patrons means more projects. Thank you again for the kind words. The link is in the video description.

[@larndavies6954]

My pleasure, only just found your channel and have watched all but the lathe videos...I woodturn so will definitely being watching those and am currently without a lathe so maybe I'll just make one but probably a metal( I weld) and wood creation. I upcycle but not to your scale and am impressed and with the imagination, design and skills,that you display you should be proud of yourself and thank you again for sharing your talents.

[@stevenmcdiarmid6143]

Larn Davies I

[@jafinch78]

Great inspiration and I was wondering if the connection that is related to the speed control can be monitored with a logic analyzer or maybe even a simpler way like just an oscilloscope to see what the signal looks like to emulate so you don't need the larger interface board. Thanks again for the inspiring ideas!

[@garyoverman4393]

I’m 64. I bought a power rheostat like yours in 1979. I made a quarter over minimum wage. Took forever to save money to purchase. 44 years later I still use it and it seems as though it’s brand new. I do not regret the purchase 😂

[@jumex-hj7qq]

you are the best teacher in the world!!!!! easy to understand right to the point, no lousy music!!!! thank you very much!!!!

[@dDoG91]

Gotta say, as important as it is to learn how to design circuits from scratch for custom projects, I am a HUGE fan of repurposing old equipment/electronics. You're a wonderful teacher, thank you for all you do.

[@jeffiscool1805]

Some people are born to teach. You sir, are one of those people. Enjoyed the video, now I'm clicking the subscribe button. Keep up the good work.

[@Jeremy_Fielding]

Thank you and welcome to the neighborhood!

[@peteratmill]

Hi Jeremy. I served a 5year apprenticeship here in UK in the 60s. I have learned more from you in a few hours than I did in my whole apprenticeship. At 70 years of age I am learning again. I have rescued a motor and hope to discover how to wire it.It has 3 wires, 2 brown and 1 blue. The diagrams (2) show a capacitor to N and bl, or bl/N and sw. The diagrams show 3rd connection as vio -L1. It's a 4 pole, 230v, .4amp, 42 watt Gefeg brand motor. Model E.G. 7130 2al rl Thanks for your knowledge and enthusiasm, it is so refreshing.

[@CalPil0t]

The definitive DC treadmill motor video. Thanks Jeremy. Just got a treadmill Thursday, good motor and controller. Stripped it down. Alas it didn't have an MC-60 type controller, so I will be trying out a 10000W 110v 220V SCR Voltage Regulator Motor Speed Controller from our favorite auction site for $12.66 and a bridge rectifier. It will come on the slow boat in a month perhaps. The controller that was in the treadmill is an Astar TD-3000N. Worked, but not likely to be able to hack it at my skill level. Not much on the net about it.

[@mariopuzo4509]

I work at a surplus store man..can't tell you how much you've helped out with vids like this. We literally have those treadmill motors as well as others. Some with a butt ton of leads and odd connectors. Some without. It's a trip. Thanks my guy.➕💯

[@zee-lusay4087]

Jeremy, you just solved a problem for me. I have a 12v squirrel cage fan to use for a blower motor but it's not fast enough. I have a vacuum cleaner motor that will spin faster but I couldn't regulate it. This video showed me I could. Thank you. Oh, If you have a electric supply house nearby get a "Uglies" book. It has all sorts of information in it for electricians. Wire: sizes-amp capacities-ohms per foot-etc, the formulas for watts/amps/volt/ohms, explanations for the markings on the wire. i.e "THNN, THHN", Motor information and formulas for power needs, and some code stuff that can keep you out of trouble too. The last one I bought was $15 WELL spent.

[@thespiritof76..]

Video and tutorial aside, you are a man who is wise beyond your years. About the tutorials though, in my generation you had to be a well behaved kid lucky enough to have a wise Ol man teach it to you knowledge like this. I think it's wonderful that you share it with so many including myself, a lifelong fixer

[@mrgizmow]

BOY, you have been given a gift. Your explanations are, comprehensive, yet concise. Easy to understand (for me). High-tech for folks starting out in a 'one-car garage'. Am going to put my money where my mouth is. THANK YOU, my $$ support will follow my last key-stroke.

[@Jeremy_Fielding]

Thank you!

[@brotherricksafety]

Jeremy you are a smart and humble man and a fantastic teacher, thank you so much for not cussing and trying to be a cool knowitall like so many on you tube. I think maybe you are the coolest one of all.

[@Jeremy_Fielding]

Thank you... that means alot.

[@brianwarner7523]

I see others have mentioned this, but it is worth repeating; you do a superb job of explaining things. It is one of the things I like most about your videos, aside from the topics and content, of course. Thanks for all the work you put into the videos.

[@Jeremy_Fielding]

Thank you!

[@ryanmsellars]

I am grateful for your videos. I had purchased a motor from a scrap store and wanted to make my own pottery wheel and now I know for sure this dinky 1/10th ball bearing motor I have isnt the right one, and I will need a speed controller for sure. I actually have that harbor freight thing too, I can see now it wont work and is basically a dimmer switch lol. I will find a treadmill somewhere and review your videos before I attempt anything. I really appreciate the time and energy you took in making these, I probably would have burned my house down or put effort into something that either didnt work or didnt work correctly. Take care :-)

[@sandyt4343]

Thanks for such an understandable break down on so many different options for accomplishing this project. I’m teaching my 6 year old grandson how to make an electric motor and now we have moved on to more complex things and he has a complete understanding of what he is doing, so your videos help me understand things that I’ve worked with for years in a way that I can pass on to him. You are a great inspiration and an excellent teacher.

[@markgreenwood8533]

Thanks.. I'm going to use Option B with the big transformer and the bridge rectifier to breathe new life into a treadmill that I bought cheap. Great video great explanations.. I've watched loads of videos and spent loads of money so far but nothing has worked so I'm hoping this will finally get my treadmill working. Thanks again.

[@donaldsherman7905]

Jeremy Fielding Ok so I know this is on of your older videos but it’s a great one! I went ahead and bought the variac device, a bridge rectifier for a generator, and the large size female spade connectors. I used a treadmill on/off box and put the rectifier on a big heat sink inside with a 110 ac plug in and the dc motor connectors out. I have to say Jeremy, this set up works great and controls the treadmill motor on my metal lathe perfectly. In the past I’ve tried cheaper solutions not the control over the full range isnt there. The whole setup was $90 and can easily be moved around if needed. I have several dc motors to set up in my shop and plan on making several on the rectifier boxes to make it all easier. The components I used Variac - 20 Amp transformer $71.19 Bridge rectifier - PSCCO rectifier diode bridge with heat sink $11.21 9.5 mm female spade terminals - $6.95. The rectifier has the large male spade terminals. Plus wire and other consumables from inventory. Total $89.35 And on the scheme of things well worth the cost to gain the desired control over dc motors.

[@matthewhenry6797]

I would be in heaven with all those motors right now because I'm building a BattleBot for my two sons and man these things are expensive. Great content and perfect explanation on everything very easy to understand what you are saying.

[@spikeshostagetv5935]

I do and will admit something you are missing something let me tell you what you're missing you're missing a ((golden play button KZbin award)) because you deserve it so I hope you will get at least 1 million subscribers so you can be able to get that golden play button KZbin award because I do wiring too and I know exactly know what I'm doing and you know what you're talking about I know because I do things what you do when you are very confident step by step of people that don't know what there doing ....AND YOU DESERVE THE KZbin GOLDEN PLAY BUTTON ....

[@victordipaglia3023]

Wow am I glad i found your website/youtube channel. You are amazing. Your way of explaining everything is awesome. I'm a 65 year old inventor nut and I love people like us, but your way of explaining is just the best. Had I had a teacher like you back when I was in grade school, Lord knows where I'd have been today. Keep up the great work. I'm going to be trying many of your ideas and projects and I'm so thankful to have found them and you. Bravo Jeremy. This is what America is about, and this what i love about our country. Yankee ingenuity rocks!

[@Jeremy_Fielding]

Thank you for the kind words. I am honored you feel this way.

[@zing913945]

I agree with you Victor. How lucky we are to have great teachers like Jeremy Fielding available to so many people wanting to learn ! !

[@garyoverman4393]

I’m 64 and relate to your story. Can you imagine how much more we could have got done with Internet AND EBay 😂

[@gwsmith76]

Awesome video series! I’ve learned more watching Jeremy’s videos this last couple weeks than I had in the 6 months prior. I won a storage auction and ended up with 3 DC treadmill motors, power supplies and controllers. I watched a ton of videos read dozens of blogs and found there is so much misinformation out there I couldn’t get anything going with them. I’ve built one into a bench grinder/knife sharpener and one into a ball mill since I stumbled across Jeremy’s channel. Explains it so well an electronic idiot such as myself can understand!

[@joshuagibson2520]

I've been wanting a belt sander and bench grinder for a while now. You've motivated me to salvage some motors and build them myself. Thank you.

[@G-V-M]

the switch tutorial was amazing, I have a friend need to have the reverse switch installed and when I tried to search on how to do it, I spent 3 weeks and most of them were talking about it, but didn't explain how to actually do it at all just talking about things it didn't help at all I figured it by myself by trail and error, but when I saw yours it was explained in like 30 seconds..way to go, keep going awesome videos

[@chrishayes5755]

Thanks Jeremy, just took apart my first treadmill today and this is a big help! Cheers.

[@joenungesser]

Thank for making my day! I know enough about basic electric to be dangerous. I gutted a treadmill, and fabricated a nylon pulley with the lathe, and placed all the pertinent treadmill items onto the lathe, and it works! With your video, made so simple, I will go to the next steps and purchase my variable speed and reverse controls.. I may try to utilize the old Furnas A-14 Drum switch that came with the lathe, if possible. Thanks again. Best video yet!

[@districtofcolumbia8659]

Who are the people giving a thumbs down to this video ? This is great content !

[@justinhommerding3693]

Definitely a welcomed addition to the previous knoledge you have played out on this channel. Thank you Sir!!

[@johnlinquist2998]

An excellent video. You have the knack of imparting information so that it is easy to understand. Thank you.

[@ricochetwildhundreds]

Your the man...I'm thinking about making a go kart and your video's are golden

[@neliumAPG]

Just spending a lazy Sunday binge watching your vids Jeremy. Very informative and keep it up. You’re going to grow huge. Probably just like the route you took to your Engineering job,

[@Jeremy_Fielding]

Thank you!

[@elliottmlev]

Hey Jeremy, Just wanted to say that I think your attitude and story is very inspiring. Keep it up!

[@Jeremy_Fielding]

Thank you!

[@TheFishingHobby]

Another great video! I would just like to add to the discussion. There are a lot of PWM Controllers available from online retailers for around $10 that can be very useful to many people using DC motors under 15 amps. I have been using a sub $10 PWM speed controller with a small 12v 50rpm geared motor for several years now to turn fishing rods I build while the finish dries. The PWM gives serviceable torque even when it is only turning at 2 rpms using the PWM. PWM = Pulse-Width-Modulated controllers for those who may not know. PWM speed controllers are great because they give you more torque at low rpms than you get just by dialing down the voltage. Thanks again Jeremy. This video will be very helpful to those wanting to reuse motors for other purposes.

[@TheFishingHobby]

I edited the original post because I mistakenly assumed the KBIC controller and Treadmill controller were PWM Controllers, after looking them up I found out that they are SCR based controllers. My mistake!

[@Jeremy_Fielding]

+The Fishing Hobby no problem. The Kb speed controller is fantastic. Very responsive in maintaining speed unload load... I cut that section because the video was just to long. I hate the loss of speed (under load) with the HF speed controller, but I dogged it enough in the video so I left that out too.

[@Jeremy_Fielding]

+The Fishing Hobby the only issue is I always want at least 15 amps lol... give me the juice to run it at max power lol I want to trip the breaker box

[@kengamble8595]

Jeremy Fielding I started to mention on my other post that I get speed control units from Banggood and have had pretty good results so far. Have one now that will handle 60 amps at 48 volts and cost me a whopping twelve dollars! If you aren't already aware of Banggood, I'd suggest that you check them out!

[@Jeremy_Fielding]

now we are talking! I will check it out.

[@montanawildcat5198]

Thanks for the help, Jeremy. I'm designing and building an ultra lightweight pedaling electric car. It's aluminum framed, using moulded carbon fiber where key strong points are in the body and polycarbonate body as well. You are smart.

[@rayfalcone6897]

Jeremey, I have to say that you have great style, the way you explain, the theory,it all makes sense if you do not understand the principal, forget it....job well done....waiting for the next video...thank you ....ray

[@Jeremy_Fielding]

👍

[@stevelecain886]

good video, I am an electronic engineer by trade, the 1500 would work fine its the voltage you need to watch when choosing a capacitor, the higher the MFD the smoother the DC output, but you could use the 1500 uf for test purposes, good job don't stop learning you are on the right track, good for you for taking the interest in this.

[@jonathanadamo6647]

steve lecain would you be able to recommend the rating of capacitor for this application? Thanks

[@paulgreenlee190]

You are an amazing person Jeremy, God given talents and sharing with others. Very helpful. I am trying to figure out what I need to build to convert house current to 24 volt to power a DC motor from a electric wheel chair hub. Watching your channel and paying attention will get me there. I just found the VARIAC on eBay for $59 and free shipping. It will at least let me run the motor until I can learn what I need to, Many Thanks

[@lorriecarrel9962]

Jeremy you seem like a very cool and humble person,I bet you make a good person to know/friend,thank you for all the good content and yes it is always good true info

[@MaturePatriot]

Just got a 2hp treadmill motor today. The cord had been cut, and the owner had said it didn't work any more. Opened up the treadmill housing and found a fried mouse in the electrical. Was wondering how to test the motor. I have a Variac, and the same bridge rectifier, already. Thank you, thank you. You are such a big help. You are my electrical motor Guru/Mentor. Monday I will take the motor out of a washing machine, and I hope it is a universal. Thank you.

[@Jeremy_Fielding]

I responded to your other comment. If you live in the US the washing machine motor is usually an induction motor. In other countries they are universal.

[@geremystarr7096]

Man I really dig the way you explain things and everything that you said been helpful to me in one way or another over the past few months going to get it man that's admirable

[@Chaos------]

The technique and ingenuity that goes into your projects is mindblowing.

[@owenprince4823]

You know your stuff and did a good job of explaining everything. I collect every treadmill motor I can get because they are so handy. I had 6 but gave two away to a friend.

[@mauriziofigini]

I am trying to learn to wire salvaged motors and your videos are just like a teaching class :) keep up the good work!!!

[@buddyfrederick4618]

Thaks for taking the time to make this video - very informative, and explained well!

[@yoshicu812]

When I built a battery charger for my truck out of a few old Samsung bricks I used 3 220v 22uf capacitors to smooth out the dc because the oscilloscope was still showing a little static in the signal. This smoothed it out and after switching the resistor I was able maintain a smooth and even 16v continuous output. Worked perfect at 2amp. Hope that helps. I build a 52volt charger for my 4 pack of 12v 7amp batteries I used for an ebike as well and used 3 500v 100uf capacitors on that. Again, worked quite well and took what looks like just a little static on the oscilloscope, out of the output.

[@joehamilton5467]

Love your videos...you make it easy to understand.....so informative....THANK YOU

[@sethbracken]

Sir, I am reporting in to inform you I killed and skinned my first treadmill today and I hope to join your tribe soon

[@MrMixmaster2009]

oh man you have found gold! i watched a video where it was used to switch out a drill press motor and it now has variable speeds to it. Good luck with you idea,,,,

[@waitemc]

This type of hunting is addictive....now im looking for electric dc forklift motors

[@sethbracken]

sparky Mccormick BIG GAME.

[@silva69ers]

Just had a solid week of hunting season (council verge junk collection). I Bagged 2 dc treadmills, an old AC treadmill, 2 washing machines and a couple of microwaves.

[@waynelonsdale6985]

Very good video what is the name of the motor you used on your lathe please Cheers wayne

[@bertbeaver1924]

I started watching a few of your videos and thought you were like the Mister Rogers of electric motors. Then you go and tell Jesse Trudeau, "Welcome to the neighborhood!" ...Classic! I like the way you explain things so that even a dummy like me can understand. This is the first ever comment I've left on KZbin. Keep it going man, it's all good!

[@jetstarr01]

I wish we were neighbors! I would bring your favorite drink over and learn so much. Appreciate your videos😎

[@Jeremy_Fielding]

Thank you so much for the kind words. We are certainly virtual neighbors now! Welcome to my neighborhood

[@nat7278]

Important side note, YOU CAN FIND A FULL BRIDGE RECTIFIER IN THE TREADMILL CONTROL BOARD. Thanka to watching this i learned what the FBR looks like and discovered there is one hidden on thw bottom side of the co teol board attaches to the heat sink. After this video i was thinking i might jewd to BIY a FBR. Nope already got one i the failed conteol board. This was a VERY helpful tidbit i could have used earlier but i got thwre in the end

[@SWSimpson]

Oh, how I wish you lived next door to me... but at least there are videos. Thank you!

[@Jeremy_Fielding]

👍🏽

[@epp661]

Excellent video! I have a homemade lathe that uses a treadmill motor. Had to use the controller that was with the treadmill (much smaller though). Now I know how to use it without the controller! Thanks again!

[@Captskeeter]

Yet another great VId... Someone may have mentioned this already but I will suggest it anyway... That HF controller may have a 400K POT in it and you may just need a smaller one to take advantage of the full range of the motor. Keep up the great Vids!!

[@garbern1]

as a retired Industrial mechanic I've used hundreds of dc motors the DC drive uses small capacators in the circuitry for amp and voltage control. A large capacator is used for noise reduction in a circuit to reduce ripple.

[@kengamble8595]

Thanks Jeremy for posting this, I'm sure it will help a lot of people ! I know that it would have helped me years ago as I had to find out by trial and error. As a side note, grab all of those MOT'S as you can because the new ones don't have transformers ! Your shop looks a lot like mine, with motors of all sizes and shapes that all come from " the roadside " ! I never could or never will be able to stand the waste that could be put to good use otherwise ! Yeah, I would be right at home in your shop because it all looks so familiar ! Thanks for sharing and take care.

[@mikeparker556]

That was great, thank you sir. You obviously know your stuff and you impart it in a way that makes it easily understood. Much appreciated!

[@kellyvcraig]

I can only imagine what could be accomplished if we got you and Mathis [out of Canada] together. I like the use of the charger for firing off the fan. I save all of them, along with every cable and wire I can find for future computer and stereo repairs and such. Using a charger from Goodwill or whatever would be a lot easier than adding another controller just to tap off the rectifier (just guessing).

[@Yakman_J.Smallz]

Thank you.. I'm going to attempt an electric boat from golf cart motor... So helpful

[@welcomezigode5838]

Thank you Sir for sharing this information with the enthusiasts. I will really use it to the utmost to develop my ways of producing feeds for my animals in my small farm and thereby save some dollars on the feed.

[@maxwright4387]

awesome videos. im trying to figure out speed controlling a similar motor with consistent control under load. the treadmill seemed to have a speed sensor on the back of the motor to accomplish this, but im probably going to discard the electronics because documentation is terrible and there is a lot of stuff i don't need or want to deal with... im sure you have something somewhere about loading and speed control anyway thank you for producing all this material. its incredibly helpful and super cool to watch

[@raydiofolk]

hey, getting the hightention coil out of a µ wave transf is to cut it on both sides with a light hammer and a woodchissel. very straight and controled. Then tap out the wires with a large square pin and twissers

[@beardedscrapper538]

Great video. Thanks for breaking everything down and explaining the specs

[@argylehunter2733]

I viewed a few of your videos today, nicely done. I have to say, which will show my age, your hand in your videos remind me of the old Soupy Sales TV show.

[@practicalman45]

I have one of those HF speed controllers. They sell them for use with a cheap router. It works reliably and great for me to reduce the speed of an HF electric 1/4" collet die grinder (universal AC motor) that resembles one of their cheap 4-1/2" angle grinders without the gear case. The die grinders run brutally strong and too fast (25k rpm!). This speed reducer makes the die grinder manageable. I have run the heck out of that die grinder, and the speed reducer, using them commercially, actually... So long as you don't overheat the 5 amp grinder motor, they both have held up really well.

[@tomkeyser8384]

Great video. your method of explaining things is very good and easily understood

[@sgnt9337]

Great video. I appreciate you posting this, and showing various ways to get these motors to work. Thanks!!

[@stanwooddave9758]

Very useful information. Well worth the time to watch, if you have a "DC" motor from a treadmill,. Thank you for sharing.

[@alejandrorivera1782]

I'm glad I came across your channel love it.

[@davidrogers1410]

defiantly informative. save yourself time and shocks you are sure to get, and watch this video before messing with electric motors. ask me how I know about the shock part! thanks for the video my friend.

[@Jeremy_Fielding]

👍

[@joshrep1318]

Not quite sure what happened but that KB speed controller is $150-$200 nowadays rather than $40. Informative video!

[@aaa8509]

For the triac it's because it needs a capacitor to smooth the DC turn out from half a square wave to most of a line. Relays would work too along with coils.

[@wa7john]

Great explanation! I love how you try all the options and then narrow down from there. Don't know how you find the time to do this. Thank you!

[@JorgeRosa]

Brilliant tutorials! With a teacher like you, its hard to not love those electric motors. :) (I was looking for video tutorials about homemade EV with a 48v 1000w motor, when I´ve found your videos)

[@ChirpysTinkerings]

another thing you can use is a ceiling fan control, they're designed for motors and are only rated for up to 5 amps or something, but for small fans like what is in blowers and such, it works fine. You can usually find them in the same area as the light dimmers at your hardware store for around 10 dollars. I have one on my foundry blower and it's been running for a few years now with no issues.

[@robhul5950]

YOU ARE A LEGEND

[@bobby3hatwoodcarving925]

Hi Jeremy, great video which has helped me complete a couple projects I’ve been working on. Just one question, I’ve installed my first speed controller, transformer and bridge rectifier plus lots of wires in a 6”x8”x 3” plastic box, how much heat build up in a closed box like that? The setup is used on my lathe.

[@dumitruhojbota5879]

Sir i love your channel. Thnak you for sharing your knowledge with us

[@terrykilpatrick5799]

The major deal with the capacitor is to ensure the voltage is rated high enough for the application you're using. So with the capacitor shown on the control board it's rated for 200vdc. The microfarads are related to the filtering of the ripple voltage, the higher the capacitance the greater the filtering. You're in essence building a DC power supply. The bridge for rectification the cap for constant smooth power out and you could add a load resistor to dissipate the current from the collapsing of the field when you stop the motor also helping discharge the capacitor for safety of handling.

[@williamschmidt1900]

I feel so blessed to have found your website. I have watched three of your videos and am so impressed with your electrical knowledge and excellent teaching skill. What I really need help with is choosing the proper size pulley for the job. I’m starting to collect the components to build a perpetual energy machine large enough to power my home. I have been watching everything I run across on KZbin dealing with the subject. The one I’m most interested in utilizes a heavy flywheel. A large motor gets the flywheel up to speed and is replaced with a much smaller dc motor to maintain the flywheel speed. If you could provide me with any help I would be most appreciative. In the meantime, I’m going to watch many more of your videos. Thank you for any consideration.

[@timbylander7015]

As far as the garage door opener motor goes you were right it does say on the motor. It says "intermittent duty" or something to that effect. But it could still be usable, you never know where it could work. It is easily reversible, BUT appears to turn very slowly maybe 500 rpms + or - . The big thing is the end play on the motor is regulated by the opener chassis and once removed from there it has about 1/2 inch end play. I'm sure it would run into the motor housing. But we will see. Thanks again.

[@ziyadkhan3814]

Salam o alikum, thankyou sir for education. May allah bless you eman true fath.thanks again.

[@dasutt1]

very good description of what each motor and what it does so thank you keep up the good work.

[@Jeremy_Fielding]

+dasutt1 your welcome

[@cflinger1979]

I found that on those harbor freight speed controls you have to change the potentiometer to one that is more suitable for the application. This is a great video.

[@Jeremy_Fielding]

Thanks. I think you are right... I will give it a try, but that’s kind of sad that you buy a new item to immediately replace parts

[@videolabguy]

Your videos are excellent. I enjoy the clarity and your confidence in the delivery of the subject matter. Your projects are amazing.

[@BradPaul1863]

Very clear instructions.

[@meagain2222]

Adding a capacitor across a rectified ac to dc will smooth it somewhat but the cap will only recuce the noise of the motor but won't significantly change its power output or speed control.The cheap triac supply can be made to work better if you put an ordinary filament light bulb across its output so the circuit will trigger sooner on the dial setting.Try 100 watts.

[@ChrisGagnonDIY]

the treadmill motors are very popular for making wind turbine. this is a great video thanks for this content.

[@Willrowzee]

Great Stuff, for large cheap run capacitors hvac applications like the air handler and especially the outdoor compressor use them, I just searched on amazon and they have 100 micro ferrad motor run capacitors for around $15 , in the outdoor unit, usually the same run capacitor is used for the fan motor, and the compressor motor. Hope this helps, thanks for all the great video info.

[@jairoalcidesvillamarin8665]

thank you very much this is going to be part idea of my new proyect. from Bogota ,Colombia ,South America thank you again

[@Jeremy_Fielding]

You are welcome.

[@brokenxj]

Really been enjoying this motor control series. One thing I've been trying to understand is: Can the treadmill motor be operated at Low RPM / High Torque? I'm talking 50-250 RPM. Would a potentiometer do it or would something like a PWM or VFD be better? Looking for something that can be manually cotrolled. Thanks for any input.

[@vlogcity1111]

Maybe with a large capacitor bank in between the motor controller and motor. I think it would greatly increase torque at low RPM

[@braxtonec]

Thanks for the detailed lesson. Subscribed within minutes of watching.

[@MrGuttepjokk]

Hi Jeremy! I'm impressed by your explanation technique/skill! I don't know what your education is but you sure making it easy even for a greenhorn to take in this matter. I'm into tech stuff myself and I've even visited USA for a year to learn the art of glassblowing and making American style Neonsigns. I saw some videos of your work a few months ago and I see progress :) okay, I just wanted to say a couple things about the humming sound on your treadmill motor in this video. It's possible to get the motor running without humming at all by adding the correct filter condensator. By running AC through a diod-bridge alone the sine/sinus would still be fare from 100% rectified. and if you look at it in a oscilloscope it would look like something not unlike a dull sawblade. That's where you need to "filter" the sine with a condensator. These filter condensators are allways on the high uF and they got a positive and negative poles. The one in this movie had a grey marking along the side at the heat shrink plastic wrap which indicates the positive side. You'll find online calculation tables or apps to help you. Again, you are a great example for the art of explanation.. the world need much more people like you! Greetings from me in a cold Norway :) PS: I'm sure you already know all this!

[@Jeremy_Fielding]

Wow, man... Norway. I love it. I have met so many smart people from all over the world. Only on KZbin can a random guy like me be visited by so many in my small little shop. Thanks for the notes and compliments.

[@alanploen9410]

Great video man. Very informative . Thank you.

[@johnzarollin2749]

the advantage of using the factory treadmill MC-2100 controller board is that there are inexpensive PWM circuits you can fab and plug into the treadmill control boards. The 9 pin connector on the lower left side uses pin 4 for the PWM pulse (speed control) 1 and 8 are grd while 2 is 12VDC. Simple.

[@Jeremy_Fielding]

+john buster -I agree with you this can be done. I would probably use a small Arduino. But it requires knowledge somewhat beyond the scope of what I was trying to show here. Many people are intimidated by wiring and circuits. I plan to continue this series and we will build up to projects like what you describe above.

[@georgedennison3338]

Lutron has made autotransformers, (the variac is an autotransformer.), for controlling curtains in theaters, large drapes and curtains in homes and for speed controllers of banks of ceiling fans for 40+ years. I salvaged an 8-9A autotransformer from a house being torn down in my neighborhood. I use it on my test bench as a variac, (I installed it in a case, added gauges, swtiches, fusing, etc). I also have a full bridge rectifier and a pair of caps as an attachment for variable DC output. DC increases by a factor of ~1.7 when rectified, so the 115-120v AC from the wall outputs about 180v DC. I bought two caps, (200v 22,000 mf), to smooth out the rectified AC. The two caps were cheaper than one big cap. There is a formula for calculating cap size. The variable is % of deviation after the cap, the lower the percentage, the closer to 'true', flat DC, the output approaches. (It's one of those 'math' things, you can approach zero in mathematicss, but your formulas blows out a thong if you actually USE zero.) You can buy Lutron autotransformers new, but they're out therein the wild, and usually cheap. Oh, unlike the 'boost' transformer built into a variac. The Lutrons do not 'over-clock' thr AC. What comes out of your wall is it.

[@randyrru]

Well done lad! Thank you very much for your time!!!

[@ibrahimjibril9395]

Thank your for enlightened me,this video do help actually

[@richardbedard1245]

You've got me wanting to go pick through my neighbor's pile of appliances so I can get all this neat stuff.

[@Jeremy_Fielding]

Have fun.

[@georgeeads8689]

Very good video Jeremy. I am like you I use motors and parts from broken appliances, treadmills etc. on other tools and things. I put a video on You tube about using a treadmill motor and controller to run my drill press. If you want to see it look up Georges 10 ER. I also used a treadmill motor and controller to run a band saw so I can cut wood or metal.

[@plankshield]

Try changing the Potentiometer on the HF unit to one around a 200K linear and see how much that helps. Mikemanmade made a cool video on this subject using a simple SCR motor controller. Keep up the good work

[@Jeremy_Fielding]

Right now it is worthless to me, so I am all in!

[@amorag59]

I never knew they sold power supplies up to 130v, I can see a lot of applications for that device. I've used a 1000uF capacitor after a variac>bridge setup and the ripple is pretty substantial on the oscilloscope. Awesome vid!

[@kellyvcraig]

I don't know if I would call it a power supply. It's just a transformer designed to allow you to tap the windings anywhere between their start and end to vary the voltage output. Mine also goes from zero to 150 volts A.C. out. They sell them in different amperage ratings (the old basic electronics rule was, when you double the voltage, amperage cuts in half).

[@amorag59]

@@kellyvcraig The ones he describes in the beginning are power supplies. Like the ones you find in tread mills. Much easier than a variac and bridge. Yes the variac and bridge isn't a "power supply" but it supplied 90VDC where needed in projects!