Many things in life make use of brushless stepping motors, and many of these are popular machines that we use everyday including printers, slot machines, scanners, floppy drives, and more. It is a very specific motor and is used because it is precise in its functioning. It makes use of a step method to rotate and this is done using magnets.
The electromagnetic BLDC stepping motors are used in industry too, in things like goniometers, mirror mounts, actuators and much more. These brushless stepping motors are used all the time by manufacturers in the various CNC machines and places like Vexta specialize in them.
You can buy step motor kit online also.
Brushless stepping motors work in the following way. It is basically a core which has 4 magnetic points around it. There are also a number of teeth along the core, which each magnet pulls along and fits into. The 12Volt stepping motor is the most popular and when the magnet starts it will pull the motor around at about 100 steps.
If you want to make it even more precise you will increase the steps to about 200. In order for the magnets to work you will attach a stepping motor controller to the motor.
You will find that these motors are used a lot more than brush motors because they are so much more accurate. The electromagnets are able to manipulate the stepping motors and you can adjust the motor to make it work perfectly for whatever application you need.
This rotator is a little bit noisy though because it works by vibrating and uses torque. There is also an open loop and a closed loop version.