Usually, when you want a servo motor, you simply buy one already made. But if you need something unusual, you can turn any DC motor into a custom servo you can control just like [Dejan] did.

The servo relies on 3D printed gears in a 3D printed housing. The design makes prodigious use of threaded inserts to hold everything together nice and tight. A DC motor is charged with driving the ...

This interaction is closed loop, as the drive constantly monitors the position and velocity of the motor and reacts accordingly. In the past, servo drives relied on specialized communications media ...