A prototype was completed, and naturally it needed testing. Since it was made using his father's old work clothes, Chen Xin subsequently invited his father to help with the testing.
However, Chen Xin's father wasn't satisfied with the Exoskeleton Protective Suit that Chen Xin had made.
"I can't take big steps, and I can't lift my arms. It's not suitable for work at all." Wearing the Exoskeleton Protective Suit, Chen Xin's father moved his body slightly and offered his opinion: "Besides, the helmet is made too large; it's really inconvenient."
"So many problems?" Chen Xin was a bit surprised at his father's evaluation of the finished product.
Chen Xin's father wanted to take the helmet off his head, but because of issues with the Exoskeleton's joint structure, he couldn't bend his arms more than ninety degrees, requiring Chen Xin's help to remove the helmet.