Camera Panorama robot head (panograph)

Step 12 6 calibration

Although I haven't done this accurately, the results are quite favourable. Servo rotation is limited to about 180 deg rotation. This is important in terms of horizontal rotation as the servo wire will physically limit the rig servo rotation if not carefully positioned. With the rig assembled, check the horizontal extreme position of the the rig by manually rotating the upper rig. If the servo cable snags, manually adjust the rig position with respect to the bearing assembly so the cable doesn't snag at full travel.

With 4 vertical moves, I adjusted the other servo/ rig arm position by trial and error so that the camera line of sight is symmetrical wrt the horizon