Today, I posted a PowerPoint file that gives instruction on how to build your very first direct current (DC) electric motor. In order to create the file, I had to first build one from scratch, make adjustments, and then take pictures of the steps in order to show you how to build your first electric motor.
This one uses a stator (the non-moving part) that has a coil made of windings of copper wire. The copper wire around the steel strip makes an electromagnet. Another major part called the armature also has two coils made by winding the wire around two opposite “arms” of the armature. When you make this part, you want to be sure you wind the wire all in the same direction around the armature strip. Also, I have found it is good to hot glue some beads to the armature shaft to reduce horizontal movement of the armature.
On the armature is the commutator. The commutator acts like a switch and turns the electricity going to the armature on and off. It happens so quickly all you will really see is some sparks coming from where the brushes gently touch the commutator copper strips.
I’ve bought a AA battery enclosure from Radio Shack to power this motor. Finally, I like to add a doorbell to the circuit to turn the motor on and off. It kind of completes the project.
So, to find the instructions, go to the first page and choose the menu item called “Build your first electric motor.” Have a great time building it and let me know if you have any questions.
Quote for the Day:
“Choose a job you love, and you will never have to work a day in your life.” — Confucius