The siege of the barbarians also exposed many defense problems in Black Iron City. The most serious thing is that there are no heavy weapons. Fortunately, the barbarians also do not have heavy weapons. If the opponent has three or five magic crystal cannons, it will be a headache to slam it in the wild.

If the heavy magic crystal cannon is moved to the city wall, it is inconvenient to move or turn around. You can only set up a fixed magic crystal turret behind the city wall. However, the turret is fixed. The entire city wall is so long, how many turrets do you need to defend thoroughly?

Rob's construct gave her great inspiration. If there was a magic crystal cannon that could move and aim by itself, the volume could remain as small as the one used by the construct, and the effect would be perfect. Audrey asked her constructor that using Rob's technology, it would be no problem to build such a self-propelled magic crystal cannon.

Audrey's proposal made Rob's eyes lit up. Indeed, among his components, the most powerful weapon is the Magic Crystal Hand Cannon. On the contrary, the components themselves have become insignificant, and their only function seems to be to carry the Magic Crystal Hand Cannon.

If the magic crystal hand cannon is used as the main body, it will be equipped with moving feet and aiming eyes. Then the material required for the entire component will be reduced by at least two-thirds, and the workload will be reduced by more than half.

Moreover, the body also has the most suitable reference, such as... Thinking of this, Rob turned his gaze to Jirasha with six feet beside him.

After discussing the details of the cooperation, Audrey said: "Some of the components buried in the crypt have been dug out. I wonder if you can repair them. If possible, I will send them over. After repairing them, we will be half of them. How about it?"

After several days of excavation, some of the goblin structures had been dug out from the ground. However, the designer under Audrey went over and was immediately stunned.

The structure of the goblin structure is relatively simple in Rob's eyes, but in the eyes of the designers under Audrey, it immediately became something more sophisticated than the clock. Not to mention repairing, they would not dare to take action to dismantle, for fear of destroying the energy circuit and causing an explosion.

In desperation, Audrey had to come to Rob, and half of it was repaired, which was better than bad. It was better if not even a single one was used.

The craftsmanship and materials of the goblin structure are relatively rough, and Robu doesn't care much about it, but repair is at least faster than rebuilding, especially the magic crystal hand cannon, which is more precise.

...

In the next few days, thirty-six goblin constituents were transported over one after another. After repairing, half of them were pulled back. However, after being pulled back, Audrey and others were stunned again.

The cockpit of the constructed body is made according to the figure of the goblin. No one can sit in except for the unadulterated children...

Unconsciously, he had a trick on Audrey. After repairing these components, Rob returned to Tiejian Castle. The tools here are more complete and the environment is quieter, which allows Rob to calm down and carefully count his gains.

The magic crystal and various materials were naturally unprepared for the harvest, and almost emptied the accumulation of the Black Iron City for decades. Even if he had to do it with all his strength, he might not have to spend these materials within ten years alone.

In addition, there are some gains that he cannot measure value.

The soul was transferred to Leng Gang's God of War, and Robu sensed it carefully, sensing Leng Gang's God of War. When his attention moved the wrists of his hands, his mind moved, and the energy blade bounced out. This weapon, which was manifested by pure energy, had a very terrible cutting power. Even the shield made by Yan Tie can be cut and cut. The non-gold and non-iron substance on Leng Gang's God of War, would be a seal when the energy blade was put on.

However, the stronger the material is cut, the greater the energy loss. If an ordinary steel plate is cut for dozens of times, the energy loss is minimal. However, if a Yantien steel plate is cut by a knife, one percent of the energy disappears instantly. This is simply using energy to exchange for destructive power.

After testing the power of the energy blade, Rob turned his attention to the outside of the body's thigh.

As soon as the thought moved, Leng Gang's War God's thigh trembled, and the two patterns lit up. They were two shield-shaped patterns, composed of complex and fine lines.

After these two patterns light up, shields composed of energy piece after piece emerged from the body of the Lenggang God of War and combined into a pair of transparent light armor, which tightly covered the surface of the body.

It turned out to be an energy shield?

Rob poked his chest with his finger in surprise. The energy shield on his finger and the energy shield on his chest repelled each other, making his fingers unable to touch his chest at all.

The energy shield floated up at a distance of ten centimeters of the body. This was the first time Rob had seen this kind of energy defense method. The general energy shield was supported by a circle. This energy shield was equivalent to a layer of energy armor outside the surface armor, and the shape of the defense also came according to its body shape.

This defense shape will not increase the area of ​​force, making it easier to dodge enemy attacks.

Moreover, this kind of defensive shield is not integrated, but is piece by piece, and is placed in various parts, and the shields of each component are not connected.

This means that crushing a certain shield will not affect the defense power in other places.

This idea was so clever and valuable. Rob looked and thought, but he was fascinated for a moment.

It took him a long time to come to his senses. The defensive shield flashed a few times, and the light disappeared. The shield entered the most energy-saving hidden state. Once attacked, it would be triggered immediately.

Finally, Rob's attention moved the body's chest position.

After the soul strength increased greatly due to the trigger of the breath of death on the battlefield, Rob sensed that there were five parts that were not felt before in Leng Gang's body. The two parts on the wrist, the two parts on the outside of the thigh, and the last part on the chest.

He activated the two parts of his wrist without thinking too much, thus activating the invincible energy blade. He couldn't figure out what the function was for a while, and the battle situation was reversed. To be safe, he waited until now.

Finally, this place on his chest made him hesitate. It was the core of Leng Gang War God's soul, and the most important position of Leng Gang War God. If there is any accident, Leng Gang War God will be destroyed.

This consequence forced him to be cautious.

However, when I thought of the more than thirty components in my hand and the various materials filled with Tiejian Castle, Luo Bu was confident. Even without Leng Gang's God of War, it seemed that there would not be much impact.

Thinking of this, Rob put his mind on the point in his chest and moved slightly.
Chapter completed!