Continued from Assembly of 'Aibo' Robot Dog (1)
For putting together the neck of the aibo, it was necessary to embed actuators to (1) move the head up and down, (2) turn the head to the right and left, (3) nod and (4) tilt the head to the right and left. Also, many signal lines needed to be laid out from the head to the control board located in the body.
The head of the new aibo contains actuators to move its ears and mouth in addition to many sensors and OLED "eyes." Because of that, the number of signal lines running through the neck is as many as 90.