Electric Motor Build - Make a simple electric motor
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Date: 2023-11-17
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Comments and reviews: 28
William
This is not my field so please excuse if I sound out of my league. My thought is, the way the comutator is positioned, isn't the field and armature magnetism wanting to fight itself as it passes through the strongest part of attraction. I would think some power is lost because it needs momentum to push past instead of the field changing right before or at the strongest attraction.
Again, I may be way off base, and I know this is just a demo for explanation. Love the videos.
Sorry, answered my own question. Permanent magnets have fixed north, south. I had in my head an electromagnetic field, thus each field each having a north and south.
Thanks.
reply
This is not my field so please excuse if I sound out of my league. My thought is, the way the comutator is positioned, isn't the field and armature magnetism wanting to fight itself as it passes through the strongest part of attraction. I would think some power is lost because it needs momentum to push past instead of the field changing right before or at the strongest attraction.
Again, I may be way off base, and I know this is just a demo for explanation. Love the videos.
Sorry, answered my own question. Permanent magnets have fixed north, south. I had in my head an electromagnetic field, thus each field each having a north and south.
Thanks.
reply
Wompa
>Fleming's LHR
Disgusting, not at all intuitive. This is what I use:
Open your right hand flat so that your fingers are straight and your thumb is perpendicular to your index finger.
Align your SINGLE thumb with the SINGLE current that you are analyzing.
Align the rest of your MULTIPLE fingers the MULTIPLE lines of the magnetic field.
If you now do a palm strike, a simple way to demonstrate applying a force, it will be in the same direction as the force acting on the wire/charged particle.
This also seamlessly integrates with the RHR for finding curl, which you can use to find the polarity of a coil with known current.
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>Fleming's LHR
Disgusting, not at all intuitive. This is what I use:
Open your right hand flat so that your fingers are straight and your thumb is perpendicular to your index finger.
Align your SINGLE thumb with the SINGLE current that you are analyzing.
Align the rest of your MULTIPLE fingers the MULTIPLE lines of the magnetic field.
If you now do a palm strike, a simple way to demonstrate applying a force, it will be in the same direction as the force acting on the wire/charged particle.
This also seamlessly integrates with the RHR for finding curl, which you can use to find the polarity of a coil with known current.
reply
58thfathom
I made this. 3d printed most parts. Only managed 240 turns. But I made slip rings and made a A/C generator that managed to light an LED. The pulses were clearly visible on the video as I used a cordless drill to drive the shaft. Definitely going to modify the rotor to add a second set of windings at 90 degrees. And a second set of magnets. Maybe scale it up to use larger wire diameter. Or maybe make a transformer to step it up.
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I made this. 3d printed most parts. Only managed 240 turns. But I made slip rings and made a A/C generator that managed to light an LED. The pulses were clearly visible on the video as I used a cordless drill to drive the shaft. Definitely going to modify the rotor to add a second set of windings at 90 degrees. And a second set of magnets. Maybe scale it up to use larger wire diameter. Or maybe make a transformer to step it up.
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Inglese29
Brilliant video, thank you! The only thing I didnt get at first was how the commutator facilitated the rotation. but I got it. The break in the commutator means the direction of current flow through the coil is continuously flipping, so consequently the magnetic field in the rotor is also flipping, as per flemings hand rule.
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Brilliant video, thank you! The only thing I didnt get at first was how the commutator facilitated the rotation. but I got it. The break in the commutator means the direction of current flow through the coil is continuously flipping, so consequently the magnetic field in the rotor is also flipping, as per flemings hand rule.
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Puderbaer
Hi, great video, I really appreciate all the explanations, it really helps. But i have a quick question, do the commutator plates have to be made out of copper? Also, instead of drilling a hole into the plates and tying the wire into a knot, I can also just solder the wire onto the plates right? Many thanks in advance!
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Hi, great video, I really appreciate all the explanations, it really helps. But i have a quick question, do the commutator plates have to be made out of copper? Also, instead of drilling a hole into the plates and tying the wire into a knot, I can also just solder the wire onto the plates right? Many thanks in advance!
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Edoardo
How can i improve the engine? I need a lot of torque. I don't know why Lego motors are small, but they are strong. Instead my motor is bigger than lego motors, but weaker. I noticed that lego motors have a metal structure instead of plastic. Maybe metal is better than plastic? I don't know. Sorry for my english.
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How can i improve the engine? I need a lot of torque. I don't know why Lego motors are small, but they are strong. Instead my motor is bigger than lego motors, but weaker. I noticed that lego motors have a metal structure instead of plastic. Maybe metal is better than plastic? I don't know. Sorry for my english.
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Bouzidi
Hello, I am trying to make an DC electric motor like you. But my problem is that I would have to use batteries, because those power supply devices are pretty expensive. So is the neodymium magnet. How would I know what battery I should get and where can I get those 3d printed Stators?
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Hello, I am trying to make an DC electric motor like you. But my problem is that I would have to use batteries, because those power supply devices are pretty expensive. So is the neodymium magnet. How would I know what battery I should get and where can I get those 3d printed Stators?
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Thilanka
3. 46 But providing a current externally creates its own magnetic field. So in this case Flemings rule applying to two magnetic forces? The Flemings rule can be better explained without providing a current to the wire but moving the wire (F) then auto generating the current.
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3. 46 But providing a current externally creates its own magnetic field. So in this case Flemings rule applying to two magnetic forces? The Flemings rule can be better explained without providing a current to the wire but moving the wire (F) then auto generating the current.
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Matt
If you set up your armature in a lathe and took a very light cut across the commutator until it all cleaned up you would have less arcing and also use flat contacts instead of round, with more surface area touching the comm it will provide less arcing also. Cheers.
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If you set up your armature in a lathe and took a very light cut across the commutator until it all cleaned up you would have less arcing and also use flat contacts instead of round, with more surface area touching the comm it will provide less arcing also. Cheers.
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Francesco
Hi, everybuddy. Just a question, man, premising it's not a polemic one but just for curiosity: Wouldn't be better to increase the commutator gaps to make engine work more efficiently? WARNING: I'm not competent in electricity. Many thanks in advance.
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Hi, everybuddy. Just a question, man, premising it's not a polemic one but just for curiosity: Wouldn't be better to increase the commutator gaps to make engine work more efficiently? WARNING: I'm not competent in electricity. Many thanks in advance.
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Just
there isnt ant 3d file for motor at description so i decided to make one. its not finished but its 2 rotor with brushed head right now i cant find magnets that is enough for own rotor lengt maybe i will shorten it if you want files tag me in comment
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there isnt ant 3d file for motor at description so i decided to make one. its not finished but its 2 rotor with brushed head right now i cant find magnets that is enough for own rotor lengt maybe i will shorten it if you want files tag me in comment
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zack
Sorry if I missed it, but is there any particular reason the rotor is shaped like that?
I feel like you could reduce the overall size of the motor by just eliminating that giant hole in the middle and moving the magnets inward
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Sorry if I missed it, but is there any particular reason the rotor is shaped like that?
I feel like you could reduce the overall size of the motor by just eliminating that giant hole in the middle and moving the magnets inward
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RockyTopTech
Wow Sir your 3D printed motor looks amazing as well as you graphics?
Your such a wonderful benevolent individual for giving away your design to 3D print this, if only more people were like you
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Wow Sir your 3D printed motor looks amazing as well as you graphics?
Your such a wonderful benevolent individual for giving away your design to 3D print this, if only more people were like you
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Bleh
So it took me forever but I finally built this! Unfortunately I cant get it to spin. :. Any ideas? Does it matter which way the wire is wound? Is there such a thing as winding TOO MUCH wire?
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So it took me forever but I finally built this! Unfortunately I cant get it to spin. :. Any ideas? Does it matter which way the wire is wound? Is there such a thing as winding TOO MUCH wire?
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Sean
Are the 3d print files available anywhere for the base and coil? My son and are are using your ideas and motor for a science project and I would gladly donate for the 3d print files!
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Are the 3d print files available anywhere for the base and coil? My son and are are using your ideas and motor for a science project and I would gladly donate for the 3d print files!
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Hitiyise
Thank you for sharing this amazing video, This is how Great Teachers develop their Nations, elsewhere in most countries people go to schools and die poor with useless theories.
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Thank you for sharing this amazing video, This is how Great Teachers develop their Nations, elsewhere in most countries people go to schools and die poor with useless theories.
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jkwo2007
So for this toy you built in this video, if I exert a rotating force on the shaft, and you connect the 2 leads to a multimeter, we will be able to see the voltage generated?
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So for this toy you built in this video, if I exert a rotating force on the shaft, and you connect the 2 leads to a multimeter, we will be able to see the voltage generated?
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Sirus_is
Would It be incorrect to assume that if one increased the amount of stators the motor would be more powerful or is something more required to increase the power?
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Would It be incorrect to assume that if one increased the amount of stators the motor would be more powerful or is something more required to increase the power?
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Robert
You should make a video about some d. i. y stuff with alternators, 12 volt batteries, and like wind power or sun power. Could help save the world. LoL
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You should make a video about some d. i. y stuff with alternators, 12 volt batteries, and like wind power or sun power. Could help save the world. LoL
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Mark
Very good teaching aid.
You could use spring loaded concave bushes on the commutator,
also run 3 stators and rotors spaced 120 degrees apart.
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Very good teaching aid.
You could use spring loaded concave bushes on the commutator,
also run 3 stators and rotors spaced 120 degrees apart.
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Brian
Love this video, thank you so much for educating! Would you be able to share the STL files for 3D printing? It says unavailable in the description
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Love this video, thank you so much for educating! Would you be able to share the STL files for 3D printing? It says unavailable in the description
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alex
For this materials you have used to run the rotor windings and the other to mount the permanent magnets, where can one get them in the market
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For this materials you have used to run the rotor windings and the other to mount the permanent magnets, where can one get them in the market
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Ali
Thank you so much for useful.
I would appreciate you if you told me which app you used co simulating(in this video)
Thank you so much
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Thank you so much for useful.
I would appreciate you if you told me which app you used co simulating(in this video)
Thank you so much
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Rebecka
This was interesting as I dont know anything about engineering (yet) however Im wondering isnt it a risk it overheats and catches fire?
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This was interesting as I dont know anything about engineering (yet) however Im wondering isnt it a risk it overheats and catches fire?
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Valmir
Excelent video! If we atach gears in the shaft, we can make a manual eletric current generator instead of an eletric motor.
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Excelent video! If we atach gears in the shaft, we can make a manual eletric current generator instead of an eletric motor.
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CryT4x
would it work if only on one site is a magnet. it would be way less efficient, but should work still, doesn't it?
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would it work if only on one site is a magnet. it would be way less efficient, but should work still, doesn't it?
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Ohm
You could probably add some carbon graphite brushes at the ends of your commutator arms to reduce the sparks.
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You could probably add some carbon graphite brushes at the ends of your commutator arms to reduce the sparks.
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alex
this is a good design. looking forward for a three phase motor or three phase generator project. keep it up.
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this is a good design. looking forward for a three phase motor or three phase generator project. keep it up.
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