Yeah i make it right now, printer stepper motor, 12v ac transformer, 220 micro farad cap, i folowed ur steps nd it's done . thumbs up for u Sir nd 5 stars for ur instructables. Thousand thanks from tunisia.
This is great. I just salvaged a stepper motor from an old printer and I'm now using it to open and close the blinds in my living room using this method. I'm using a DPDT toggle switch to switch the capacitor from one coil to the other to reverse the motor. A simple push button in-line with the power feed operates it.
A 4 wire stepper motor requires 4 separate pulse sequences to run: 90 deg(+ - 0 0), 180 deg(0 0 + -), 270 deg(- + 0 0), 360 deg(0 0 - +). Notice that sequence 1&3 and 2&4 are basically AC pairs. All that switching is usually done with an array of transistors and a controller to time the pulses 90 Degrees apart. Using AC, you can mimic it. The capacitor is there to delay the one field by 90 degrees. If you have chatter, then the 2nd field is more or less than 90 degrees off the first. Get a bunch of small caps that are rated for at least the voltage of the motor and start connecting them in parallel. when the motor runs the smoothest, then add up the ferrads of all of them and get a capacitor that size. Make sure caps are rated for AC. Example: small 24v stepper used two CBB22 caps for smooth operation. Hope this helps. Great vid by the way.
Excellent idea to use inductive current to identify coil terminals! As you are using LED, polarity of terminals can also be detected. (Same if a DC voltmeter is used.) As such, wiring can be completely determined without trial and error.
you just blow my mind...i didn't know how to run them before so i was going to get rid of them but thanks to you i know how to run them so for that i will subscribe
Thanks much for the correct and seemingly simple way to "bypass" the Stepper part. I couldn't bear to throw them out, especially the small ones from 3-1/2" drives, with the worm gear shaft. They look really useful just didn't know how to keep it steady running!
This is a great explanation of stepper motors but what I really learned here is to be able to use just a 12v transformer with no H-bridge, so it is yielding 12AC power at 60 or 50Hz depending on country, and that you can take that pulse and put that with a capacitor, and get work done. Thanks for the video. It would be nice to see a video showing the cycles of how the capacitor is charged up and released.
It’s all sounds good how do you know which capacitor do you need you are saying that the motor supposed to be ran smoothly do I have to buy several different capacitor or does it say on the motor which capacitor do I need thank you
In general: It's the exact same circuit like a 230V single phase ac asynchronous motor where you declare one coil as a primary coil and the other one as an auxilary coil. To achieve the best results, you have to use the following simple formula: Ut x √2 = Uc. In this example: Ut ( 12V~ ) x √2 = Uc ( 16.97V ~ ). You have to have 17V~ on the capacitor for a smooth run. Hope I could help with these informations.
+Bandicoot803+ Thanks! This formula works excellently, and has been helpful for determining voltages in a home-built driver that optimizes coil current using dynamic DSP, like the Gecko Drives do. I’m failing at this, so far, but having help from formulas like to one you provided is much appreciated!
@@wolfdangerous84 There is: By increasing the grid carrier freqency. Europe for example has a grid frequency of 50Hz, while the U.S. swings 60. Alternatively you can use a VFD but with great caution as you're fiddlin with high hazardous voltages.
@@femiadebola5276 I see your problem. And provide a solution: Grab a multimeter and measure the resistance using two wires at a time ( one end on each probe ). Take note of the values you measure across which color-coded wire. The ( obviously ) lowest resistance indicates that you found the common ground as your motor likely is a star configuration, just like some 3-phase AC motors. If you find a higher value, then you're measuring two coils. If you find the pattern, where multiple wire pair indicate the lowest resistance, then you found your common ground wire. The remaining wires all lead to individual pole coils.
Excellent video with much very useful information for me with my current (no pun intended!) projects! Thanks very much for that- I will now subscribe to you and hope to learn more.
Heh... good stuff. An easy way to test my stepper motors without having to build a driver circuit is nifty. I like the comments where people are alarmed about AC through a brushless DC motor. It's funny stuff.
Hey friend, thank you for the valuable information! For a Brazilian, the way you speak English is very good, it is perfectly understandable. Also the way you explain it very didactic! Please answer me if the engine loses power in this type of use. I wonder if you allow me to do a similar video for Brazilian friends who do not understand English. Thanks again, please go on!
Ojo con el tipo de transformador que se utilice, no se debe sobrepasar el umbral de absorción del motor, dependiendo del modelo de motor que se utilice, generalmente alrededor de 400/500 miliamperios para NEMA17, mientras que para NEMA 23 no se debe superar 1, 6 A estos son muy importantes y es raro que el autor del video no lo especifique de lo contrario con un uso prolongado el motor podría sobrecalentarse y romperse, así que ojo con el tipo de motor que estás usando, haz una búsqueda para saber las características y luego instale un transformador adecuado. Felicitaciones por la excelente explicación en video para el cambio de rotación, solo use un simple interruptor de palanca doble que se puede encontrar en el mercado. Saludos a todos.
Now think about it, the two wires that you can connect the cap to make it forwards and backwards, you could use an NPN transistor and an arduino and switch it on and off, therefore having variable speed.
This is a wonderful combination of ac and dc. Most people are terrified of using any form of ac in hobby devices. Truth be told a shock from your main power is quite nasty but hardy fatal.
110v AC is very dangerous. Although the human skin can effectively resist most of the current, all it takes is for you to have a proper ground touching bare skin or for a wire to penetrate a couple layers and enter your flesh for it to kill you. An older fellow may even die from a simple shock. Don't play with AC when it's over 30v unless you're experienced.
Great video ! But one remark....: In the first 2 minutes you explain about UNIpolar steppermotors, but @ 00:51 you suddenly mention BIpolar steppermotors. I guess this should be UNIpolar? Keep these video's coming.
Great info. Years ago i played around with using stepper motors as generators so I'm surprised i hadn't thought of spinning the motor to test the leads. I have several SAS drives that are too much trouble to set up RAID. I managed to alter a SATA plug to get past the block on the SAS drive. All the contacts r supposed 2b the same but, unlike SATA drives, it does not spin. Maybe this will help me get there. Thank you for doing this video.
Cool Stepper Motor is a Dc Motor, also if you contact two of them, and move One of Both, can you use them as Genrator ~ Motor . Once we used it as Encoder as well. Thank you Bro!
Counterclockwise is also simple...make the reverse connection.. i.e. give the supply to 2 short wires and short the another wires.. it will definitely run.
Could these motors and the circuit you've demonstrated here been used in the tabletop electromechanical adding machines of the 1960's. These simple adding machines were driven directly by a 110VAC solenoid or an AC motor, which lead for a hot chassis.
i tried in my stepper a bit old , but it is not rotating, not sure if 1000 micro farads ok, iterated the wiring connections, the motor coil gets enertigised by not moving
Thanks for the video. But how do the control system knows if the set of instruction which is sent to the motor via driver, was done? Because usually stepper motors are connected without any measuring device like rotary encoder so the system itself doesnt have any feedback if the rotation defined by steps was done. But in some cases (like if I use them for powering the axis of 3D printer) the system needs to know if the motor completed the rotation or not, and then the system can sent the command to other stepper motor to move in other axe/axis... Do the drivers have a dedicated signal for this purpose? (Like - was lastly sent set of instruction completed?). Or does it work by the principle of knowing the speed of rotation and the desired position, so the system calculates the time and after the time is reached, the system assume that the desired position was reached?
Ok, I dug out a 4 wire step motor and tried the led test and it worked, so I came back to re-watch how to get it going, before I do I'm curious bout 3 main things. First is that "power" to both sides, as both output leads shown here are red, if so what grounds it? Then you said a fairly low (compared to other caps I've recovered), and recommended 25V min. I am a total novice to electronics, but some want to learn. Any help thanks..
Great tutorial. I'm attempting with a 4 wire, 6vlt micro stepper w/100mF cap with no motor action. Should I increase mF cap value until its running, & smoothly?
This will not work from a dc source. The leads are coming straight from the 12 volt transformer with no rectification or smoothing and the motor relies on AC to change the polarity of the magnets at 50 /60 Hz I am assuming as I do not know enough about the subject. I have just tried it using a 12v car battery and having robbed an led and several capacitors from a 24 V power supply and no it doesn't work on direct current! Oh and I had such high hopes of this method!a question I would ask is that with this method is it possible to control the speed and to reverse the direction?
Finding the correct capacitor is likely the tricky issue unless you have many on hand to experiment with. I did try this with a stepper and 24v ac and watched the motor shaft want to move. Clearly it’s not correct capacitor however it’s just as inexpensive to go purchase a cheap pwm control, Arduino, or whatever and use a dc power source. Less headache.
Thanks for this information. Do you know if the stepper motor wired this way runs at a different speed, or at the same speed you would get from it when driven by a stepper motor controller? Also, is there a scientific way to determine the best capacitor to use?
I tried this on a mitsumi m42sp-6nka LF. It didn't work. All three combinations of wiring made the motor jump by 1-3 steps, or sometimes not move at all if it was in a certain position. I can't find a way to make it run, even after trying a few capacitors. Hrm. Not sure if defective motor or stupid user...
+archivalo For this fascinating trick to work, you definitely need AC, or some other intermittent supply. If you have a serious application then you really want a small chunk of electronics that's intended for the purpose (often just one chip). What's shown here is very roughly comparable to buying a 3 cylinder engine and only supplying petrol to one of the cylinders. Interesting that it works, but that's probably about all.
i have a 8 wire stepper motor, any chance it would work with this method? it is powered by 4 wires though, same wire is connected to 2 connectors from the motor.
+Ludic Science Ok, i will try, but have to find a transformer 230V to 12V or 24V. I have a lot of capacitors, so hopefully it works :) thanks for this video
Hi, Great solution! Could you please give me some tips on how many volts/amps AC I would need to use for a standard Nema 17 stepper motor, also what would be the best capacitor type / voltage / uF? thanks!
Sir, I have taken out the motors from a old Cannon IP 1980 printer and found there are two wires. Kindly tell whether these are 24V or 12V motors. Power supply module is 24V for this printer.
ok tank you , is the output of the transformotor , dc? or shoul be is AC? & spead of rotation the motor is very low , is able to increase spead of rotary to eg:3000rpm?
Very useful thank you and it works so well. For all those wondering, it is an 12VAC transformer he is using.
Thanks
Thx for keeping it simple and to the point and not wasting our time with useless info. Great work!
Yeah i make it right now, printer stepper motor, 12v ac transformer, 220 micro farad cap, i folowed ur steps nd it's done . thumbs up for u Sir nd 5 stars for ur instructables. Thousand thanks from tunisia.
This is great. I just salvaged a stepper motor from an old printer and I'm now using it to open and close the blinds in my living room using this method. I'm using a DPDT toggle switch to switch the capacitor from one coil to the other to reverse the motor. A simple push button in-line with the power feed operates it.
+gscott69 Glad you like it!
A 4 wire stepper motor requires 4 separate pulse sequences to run: 90 deg(+ - 0 0), 180 deg(0 0 + -), 270 deg(- + 0 0), 360 deg(0 0 - +). Notice that sequence 1&3 and 2&4 are basically AC pairs. All that switching is usually done with an array of transistors and a controller to time the pulses 90 Degrees apart. Using AC, you can mimic it. The capacitor is there to delay the one field by 90 degrees. If you have chatter, then the 2nd field is more or less than 90 degrees off the first. Get a bunch of small caps that are rated for at least the voltage of the motor and start connecting them in parallel. when the motor runs the smoothest, then add up the ferrads of all of them and get a capacitor that size. Make sure caps are rated for AC. Example: small 24v stepper used two CBB22 caps for smooth operation. Hope this helps. Great vid by the way.
I have a 6 terminal motor. Can I add an inductor in the third coil to get the pulse another 90 deg? Will it work?
Excellent idea to use inductive current to identify coil terminals! As you are using LED, polarity of terminals can also be detected. (Same if a DC voltmeter is used.) As such, wiring can be completely determined without trial and error.
Use multimeter 😑
The diode will light up either way because the stepper motor produces ac. Once you rectify the ac to DC it will only work if the polarity is correct
Thank you, that’s exactly what I was looking for. I will watch the add so you can make a little commission on this.
this is exactly what i was looking for. all other videos go straight to the theory and waste 10 minutes before anything happens
you just blow my mind...i didn't know how to run them before so i was going to get rid of them but thanks to you i know how to run them so for that i will subscribe
+Matthew Lucyshyn Thanks
Thank you so much for sharing knowledge, that also mean you need AC supply to let motor operate .
from this video now I have a new knowledge about how to check the coil
Thanks much for the correct and seemingly simple way to "bypass" the Stepper part. I couldn't bear to throw them out, especially the small ones from 3-1/2" drives, with the worm gear shaft. They look really useful just didn't know how to keep it steady running!
This is a great explanation of stepper motors but what I really learned here is to be able to use just a 12v transformer with no H-bridge, so it is yielding 12AC power at 60 or 50Hz depending on country, and that you can take that pulse and put that with a capacitor, and get work done. Thanks for the video. It would be nice to see a video showing the cycles of how the capacitor is charged up and released.
+Jeff Beck Yes! when I made the video i did not have an oscilloscope
deos that mean, if a high voltage capacitor will not wori?
Nice video that you should mention that it must be alternative current otherwise it will never work with continuous current
Recommended by Jeremy Fielding. Thank you for this tutorial.
Thank you ! Very helpful ! I could never throw away those little motors but didn't know what to do with them, now I do !
It’s all sounds good how do you know which capacitor do you need you are saying that the motor supposed to be ran smoothly do I have to buy several different capacitor or does it say on the motor which capacitor do I need thank you
In general: It's the exact same circuit like a 230V single phase ac asynchronous motor where you declare one coil as a primary coil and the other one as an auxilary coil.
To achieve the best results, you have to use the following simple formula: Ut x √2 = Uc.
In this example: Ut ( 12V~ ) x √2 = Uc ( 16.97V ~ ). You have to have 17V~ on the capacitor for a smooth run.
Hope I could help with these informations.
+Bandicoot803+ Thanks! This formula works excellently, and has been helpful for determining voltages in a home-built driver that optimizes coil current using dynamic DSP, like the Gecko Drives do. I’m failing at this, so far, but having help from formulas like to one you provided is much appreciated!
Is there a way to run it faster?
@@wolfdangerous84 There is: By increasing the grid carrier freqency. Europe for example has a grid frequency of 50Hz, while the U.S. swings 60. Alternatively you can use a VFD but with great caution as you're fiddlin with high hazardous voltages.
Great video I salvage m35sp-9 5 wire stepper from a printer please I need help on how to connect the wires
@@femiadebola5276 I see your problem. And provide a solution: Grab a multimeter and measure the resistance using two wires at a time ( one end on each probe ). Take note of the values you measure across which color-coded wire. The ( obviously ) lowest resistance indicates that you found the common ground as your motor likely is a star configuration, just like some 3-phase AC motors. If you find a higher value, then you're measuring two coils. If you find the pattern, where multiple wire pair indicate the lowest resistance, then you found your common ground wire. The remaining wires all lead to individual pole coils.
Very nice work, easy idea for running stepper motor thanks
Excellent video with much very useful information for me with my current (no pun intended!) projects!
Thanks very much for that- I will now subscribe to you and hope to learn more.
+Gregor Kropotkin Glad you like it! I will be uploading more videos, thanks for subscribing.
thank you! can you slow motor down with different capacitor or adding resistor?
Thank you for This simple technique
Thanks for this video. My problem is slove. Thanks again.
Hi
Simply Genius. Thank you very much.
Beautiful, simple design. So educational this video.
+Jeff Beck Thank you.
Heh... good stuff.
An easy way to test my stepper motors without having to build a driver circuit is nifty.
I like the comments where people are alarmed about AC through a brushless DC motor. It's funny stuff.
Hey friend, thank you for the valuable information!
For a Brazilian, the way you speak English is very good, it is perfectly understandable.
Also the way you explain it very didactic!
Please answer me if the engine loses power in this type of use.
I wonder if you allow me to do a similar video for Brazilian friends who do not understand English.
Thanks again, please go on!
Thanks so much!
I am Brazilian and Portuguese
Sir, you are a very smart guy. THANK YOU FOR THIS VIDEO.
This message was posted thanks
Ojo con el tipo de transformador que se utilice, no se debe sobrepasar el umbral de absorción del motor, dependiendo del modelo de motor que se utilice, generalmente alrededor de 400/500 miliamperios para NEMA17, mientras que para NEMA 23 no se debe superar 1, 6 A estos son muy importantes y es raro que el autor del video no lo especifique de lo contrario con un uso prolongado el motor podría sobrecalentarse y romperse, así que ojo con el tipo de motor que estás usando, haz una búsqueda para saber las características y luego instale un transformador adecuado. Felicitaciones por la excelente explicación en video para el cambio de rotación, solo use un simple interruptor de palanca doble que se puede encontrar en el mercado. Saludos a todos.
Very informative. Thanks for sharing
That's a cool little trick to identify which wires are which.
Thanks you very much L S ,this is wonderful tutorial.
i have waiting another tutorials and i will subscribe twice.
+Win Lwin Thanks
Simple and clear..., magnifique!!! :)
Nice job on the tutorial. I learned a great deal thank you.
Now think about it, the two wires that you can connect the cap to make it forwards and backwards, you could use an NPN transistor and an arduino and switch it on and off, therefore having variable speed.
Keep hustling, big things incoming! 🚀
Oh i like it very much. tnx, i just pulled out motors from junked printer LX-300. I will try it.
Good day Sir, May ask what exact value of the capasitor you have used in the video... Thanks...
simple but effective. explaination....đơn giản nhưng sâu sắc giải trình
wow..this really helped my problem.. thanks Ludic
I enjoyed the video explanation. Could you please help with the testing of a dvd motor? Thank you
This is a wonderful combination of ac and dc. Most people are terrified of using any form of ac in hobby devices. Truth be told a shock from your main power is quite nasty but hardy fatal.
Unless you live in Europe and have 220v mains...
we have 400V mains here...
110v AC is very dangerous. Although the human skin can effectively resist most of the current, all it takes is for you to have a proper ground touching bare skin or for a wire to penetrate a couple layers and enter your flesh for it to kill you. An older fellow may even die from a simple shock.
Don't play with AC when it's over 30v unless you're experienced.
Good advice, wear your seat belts, don´t swim one hour after you eat, etc, etc.
+Wheresmy240 Majoring in the bloody obvious are you?
many thanks 🙏🙇simple solution
Your a genius Manuel
Very nice idea.. Good job..👍👍👍
Great video !
But one remark....:
In the first 2 minutes you explain about UNIpolar steppermotors, but @ 00:51 you suddenly mention BIpolar steppermotors. I guess this should be UNIpolar?
Keep these video's coming.
+Robbert van Herksen Thanks! The trick works with bipolars (4 wires)
Thanks Ludic!! Always good stuff you teach!
Brugga Jugga Thanks!
great put what about the Torq ?
salamat amigo! from Philippines.
this is exactly what I needed, thanks for the help!
excellent. I studied a lot. thanks.
Tienes un transformer de 12v, son 12v de entrada o de salida?
Gracias por compartir tus conocimientos.
Wow, i m so Helpfull thank u
Great info. Years ago i played around with using stepper motors as generators so I'm surprised i hadn't thought of spinning the motor to test the leads. I have several SAS drives that are too much trouble to set up RAID. I managed to alter a SATA plug to get past the block on the SAS drive. All the contacts r supposed 2b the same but, unlike SATA drives, it does not spin. Maybe this will help me get there. Thank you for doing this video.
Just check continuity with a multimeter, no need to invent a generator
Do you think it is a good idea to use polarized capacitor in an AC circuit?
very simple & I learned a great deal thank you.
Cool Stepper Motor is a Dc Motor, also if you contact two of them, and move One of Both, can you use them as Genrator ~ Motor . Once we used it as Encoder as well.
Thank you Bro!
2 questions, Where can i buy a 12v transformer and how did you power the transformer?
Ludic, thank you very very much for this video, it is very good, I now have an idea of what to do.
many regards , Colin U.K.
Thanks for this information. Can I use a 1000 mF capacitator, and what kind of stepper motor driver controller do you recommend?
Stepper motors are cool... thanks for this video
I love'em.!
Counterclockwise is also simple...make the reverse connection.. i.e. give the supply to 2 short wires and short the another wires.. it will definitely run.
Could these motors and the circuit you've demonstrated here been used in the tabletop electromechanical adding machines of the 1960's. These simple adding machines were driven directly by a 110VAC solenoid or an AC motor, which lead for a hot chassis.
I really don't know, have no experience with those machines
Simple and perfect explanation. Thank you
Thanks for another great video very useful information
that was useful thanks
i tried in my stepper a bit old , but it is not rotating, not sure if 1000 micro farads ok, iterated the wiring connections, the motor coil gets enertigised by not moving
Thanks for the video. But how do the control system knows if the set of instruction which is sent to the motor via driver, was done? Because usually stepper motors are connected without any measuring device like rotary encoder so the system itself doesnt have any feedback if the rotation defined by steps was done. But in some cases (like if I use them for powering the axis of 3D printer) the system needs to know if the motor completed the rotation or not, and then the system can sent the command to other stepper motor to move in other axe/axis... Do the drivers have a dedicated signal for this purpose? (Like - was lastly sent set of instruction completed?). Or does it work by the principle of knowing the speed of rotation and the desired position, so the system calculates the time and after the time is reached, the system assume that the desired position was reached?
Wow this is awesome!!!! So the capacitor is acting like a pulse width modulator?
in a certain sense, yes
Hi Sir
How if i am using a 12VDC power source? As yours is 12VAC how do u adapt your circuit to my 12vdc battery 1.3Ah source?
Excellent Video, very informative.
Very cool. Am I right in thinking the speed of the motor will be dependent on the frequency of AC you drive it with?
+gristc yes, the rpm of the motor will be equal to the frequency in Hz
So clear - so concise
Very very good. Thanks you.
Ok, I dug out a 4 wire step motor and tried the led test and it worked, so I came back to re-watch how to get it going, before I do I'm curious bout 3 main things. First is that "power" to both sides, as both output leads shown here are red, if so what grounds it? Then you said a fairly low (compared to other caps I've recovered), and recommended 25V min. I am a total novice to electronics, but some want to learn. Any help thanks..
Excellent video, thank you
:)
excellent tut
Very clever my friend!
Thank you!
Great tutorial. I'm attempting with a 4 wire, 6vlt micro stepper w/100mF cap with no motor action. Should I increase mF cap value until its running, & smoothly?
That's really helpful, thanks!
This will not work from a dc source. The leads are coming straight from the 12 volt transformer with no rectification or smoothing and the motor relies on AC to change the polarity of the magnets at 50 /60 Hz I am assuming as I do not know enough about the subject. I have just tried it using a 12v car battery and having robbed an led and several capacitors from a 24 V power supply and no it doesn't work on direct current! Oh and I had such high hopes of this method!a question I would ask is that with this method is it possible to control the speed and to reverse the direction?
Sir, how we know exact value capacitor in our application there is any calculation. sir, please help me out in this
It also works exactly the same just by using only one winding and AC. You can disconnect the capacitor.
Awesome, basically a modified inductance motor like a normal ac motor. The capacitor adds the additional phase needed
Tnx for very informative video my friend. May we can use this motor for robotic arms??😀
Or legs too 😋
Finding the correct capacitor is likely the tricky issue unless you have many on hand to experiment with. I did try this with a stepper and 24v ac and watched the motor shaft want to move. Clearly it’s not correct capacitor however it’s just as inexpensive to go purchase a cheap pwm control, Arduino, or whatever and use a dc power source. Less headache.
What is the write way to connect the capacitor means to say negative terminal of the capacitor goes to which pin
+att singh Does not matter. However you must use a capacitor of at least 35 volts
What Capacitance should I use for a NEMA17?
Thanks for this information. Do you know if the stepper motor wired this way runs at a different speed, or at the same speed you would get from it when driven by a stepper motor controller? Also, is there a scientific way to determine the best capacitor to use?
I think the speed of the motor depends on frequency of the outlet power. Either 50 or 60 Hz.
I tried this on a mitsumi m42sp-6nka LF. It didn't work.
All three combinations of wiring made the motor jump by 1-3 steps, or sometimes not move at all if it was in a certain position. I can't find a way to make it run, even after trying a few capacitors. Hrm.
Not sure if defective motor or stupid user...
It's a great video, thanks a lot! I'd like to ask: what shall I do, if I have a 5 wired stepper motor? How can I make it run without a driver?
+archivalo I dont know a method for 5 wire motors
+Ludic Science
Thanks for the answer. I'd like to ask, if I "forget" the middle wire - it will not work like a 4 wired motor?
+archivalo Maybe, why dont you try to do that.
+Ludic Science I tried it, but didn't work... Maybe I made a mistake: I need 12V AC or DC ? I tried it witha power supply, and it had only 12 V Dc...
+archivalo For this fascinating trick to work, you definitely need AC, or some other intermittent supply. If you have a serious application then you really want a small chunk of electronics that's intended for the purpose (often just one chip). What's shown here is very roughly comparable to buying a 3 cylinder engine and only supplying petrol to one of the cylinders. Interesting that it works, but that's probably about all.
thanks for the info :) does capacitor directly connected to AC supply? no polarity ?
i have a 8 wire stepper motor, any chance it would work with this method? it is powered by 4 wires though, same wire is connected to 2 connectors from the motor.
+Coen Wouters I have not tried with those motors
+Ludic Science Ok, i will try, but have to find a transformer 230V to 12V or 24V. I have a lot of capacitors, so hopefully it works :) thanks for this video
A good video, use apolar capacitor for better result
Great. How can vary speed with a potentiometer?
Hi, Great solution! Could you please give me some tips on how many volts/amps AC I would need to use for a standard Nema 17 stepper motor, also what would be the best capacitor type / voltage / uF? thanks!
Sir, I have taken out the motors from a old Cannon IP 1980 printer and found there are two wires. Kindly tell whether these are 24V or 12V motors. Power supply module is 24V for this printer.
Is the capacitor non-polorized?
ok tank you , is the output of the transformotor , dc? or shoul be is AC? & spead of rotation the motor is very low , is able to increase spead of rotary to eg:3000rpm?
is the transformer needed?