Instead of stepper motors, use servos. Less power use (no power used to hold position unless force applied), no need to look for "home" position (absolute positioning). Normal steppers can move 180°, which should be enough for most gauges.
Instead of stepper motors, use servos. Less power use (no power used to hold position unless force applied), no need to look for "home" position (absolute positioning). Normal steppers can move 180°, which should be enough for most gauges.