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.

Servo systems can be difficult to troubleshoot, but their digital controls usually have extensive diagnostic ... aspects when specifying servo motion controllers and motors. Careful up-front design ...

[Jim Fong] sent in this demo of his version of the UHU servo motor controller. [Uli Huber] has actually shipped over 2500 controllers for the servo. He doesn’t charge much for the chips ...

Thomson Industries’ Movotrak CTU 7th axis features a Kollmorgen servo motor, linear-unit-driven guide rails and collision ...