Building & Testing a Mini Lego Brushed Motor
189,948
Published 2024-05-24
See my latest experiments and behind-the-scenes footage!
Can we use some simple wire, magnets, and Lego to make our own brushed motor? In this video, we’ll attempt to build a brushed motor with a simple commutator that will time the rotations. And we’ll explore its performance by testing it at different voltages and current, as well as seeing what Lego contraptions we can power with it. Finally, we'll hook it up to a power supply to push it to its max!
All Comments (21)
-
You're not getting even close to 2 amps in there, let alone 10. As the other comment already said, the amps on your power supply are just a limit. The current passing through a wire is voltage divided by resistance of the conductor, and that resistance is static, but you turn the voltage higher, which does result in higher current, but it is quite low. Higher resistance - less current, Higher voltage - more current.
-
7:12 The two amps are only the limit. The actual current draw is around 110 milliamps. So even if you set it to 5 amps, it would be the exact same result. It's only the voltage that makes it go faster :)
-
now make brushless
-
the perfect video to make kids understand how motors work. they never get the complicated metal pieces in normal motors. lego is perfect for this
-
nail clippers are the best tool to cut small wires 👌 Finally I know I'm not alone
-
This on top of a lego train would look amazing I think!
-
you can do brushless dc motor, no commutators, no pulsing, just dc wire running over radially in circle over a ring magnet. high current thick wire replaces many loops of small current wire. yep car battery sized heavy duty current wire. wire? make it a beam, or thick metal rod. flexible metal strip running on a split current rod works as a commutator too. the strip friction makes contact with the spinner. thats wire edm cutter in action. lol. also friction will melt the wire.
-
Great to see that you are expanding an making motors now!
-
Your rotor with 3 coils is good. When you wrap the coils, use a little super glue to secure them in place. Also...MORE magnets! :)
-
You had to get the first laugh when is in the Lego figure jump from the voltage😂😂😂
-
you should get the Nobel Prize
-
Seeing the tank makes me think of just how well a lego tank would work if it had two to four of those motors working together to spin the tracks, great vid!
-
You know, could've made the commutator with some thicker wires. You're not burning out the motor, you're snapping the very weak contacts due to abrasion. And raising the current limit on your power supply does not change the amount the motor draws. Also, why aren't you using another magnet? The coil that goes to the top doesn't do anything in your design. Could've made only one brush on the one side for higher efficiency, the other is just wasting power
-
There is no way you didn't realize how many words rhyme with motor in this video.
-
I think you may be able to generate power with that motor, just turn the shaft and the magnet will induce a current in the wires.
-
Is bro just made diy power functions 😂 This is going to create an entire new field of lego creations And that is awesome
-
You do it very carefully and patiently
-
Awesome build.
-
This is awesome! Nice work!
-
I'm gonna take a drink every time Jamie says motor.
