Yes, it was supposed to stay in the same spot. But due to the inconsistency of many factors, such as servo precision, calibration, angle sensor, spring tightness, and friction, it gradually shifts to one side. When we calibrate it, one out of two would shift. We keep tuning the motion to see if the performance will be more robust.
@Ninten110 (Laila) First make sure the calibration is good. Then you can slide the battery as a tunable mass. You can also attach some lead weights to find the balancing point.
Yes, it was supposed to stay in the same spot. But due to the inconsistency of many factors, such as servo precision, calibration, angle sensor, spring tightness, and friction, it gradually shifts to one side. When we calibrate it, one out of two would shift. We keep tuning the motion to see if the performance will be more robust.