Continued from 'Pepper' Humanoid Robot Teardown (3)
Next, we started to disassembled the upper body of the Pepper robot by loosening many screws and pulling out cables.
Again, this was not an easy task. There was a rubber band on each of the right and left sides of the waist, connecting the upper and lower bodies. And we found it very difficult to remove the two bands.
No matter how many times we tried to pull them out by sheer force, we were pulled back by them.
When we were about to give up, one of us tilted the upper body of the robot. When the upper body is pulled up with both hands by sheer force, the right and left bands are evenly pulled. On the other hand, when the body is tilted either to the right or left, one band expands while the other contracts. So, we started to remove the contracted band first.
The bands were successfully removed as we expected, and we pulled out the upper body.
The robot looked completely different from the original form. No one would see it as a humanoid robot.
The upper and lower bodies are connected by flat cables looking like signal lines and four cables that are seemingly used for supplying electricity. We measured the voltage of the power supply cable with a digital multimeter. It was slightly less than 29V. The robot is powered by a battery and booted with a power button on its chest. So, electricity is always being conducted in it.
Later, we found that there was another button near the robot's foot and that it was possible to cut power supply by turning it off.
We were running out of time. So, we sped up the teardown.
The exterior of the leg was removed.
The omni wheel was exposed.
When we started to disassemble the arms, we ran out of time and wrapped up the work.