Cited as a reference · for some experience
Combo Breaker - motorized combo lock cracking device
Why people recommend it
Samy Kamkar's machine that turns a combination lock dial with a motor, cited as prior art for lock projects and as a way to drive knobs.
Watch for: Referenced as an example more than as a tutorial
In their words
I've seen folks use a stepper motor to control a knob, sort of like this.
bhoward on electronics.stackexchange.com, Dec 2015. CC BY-SA.