After figuring out the road ahead, Zhang Yuan once again focused on becoming an arms provider for miners.

He began to produce improved versions of laser mediators and focusers, and the production speed of ordinary weapons was slightly slowed down, but there was no delay.

Every few days, Black Crow would come to get weapons. The quality of the weapons he got was very stable every time, and the new weapons were also very good. Youguangcheng Station was attacked by Lianfa laser beams, and the city guards in the station were killed. The miners praised the new weapons very well.

Black Crow is naturally very satisfied with this.

However, he discovered a strange phenomenon that the two people no longer appeared at the same time in the printing room. Whenever he came, he either saw Zhang Yuan or Lu Meng, and there were almost no two people present at the same time.

Once Lu Meng was present, he asked this question.

Lu Meng didn't look back and sneered while adding materials to the printer: "We are only two of us, we have to control more than 40 printers. More than 1 million laser guns were produced in 10 days, and new weapons are also needed. Do you think we are robots and don't need to rest? Zhang Yuan is sleeping in the lounge."

Black Crow slapped his head and felt guilty: "I'm sorry, I'm confused, I apologize."

After saying that, he left the weapon printing room gently. After half an hour, he sent another 100 million star shields and sincerely apologized to Lu Meng: "I'm really sorry, you have worked hard these days, and I have nothing good to do. Just treat these star shields as compensation."

Lu Meng glanced at him coldly: "Take the things back. We are here to do business, and we only do business, we get what we pay for, and we will make less friendship!"

She has a strong aura, her skin is as snow, her hair is as cold as ice roses.

"..." Hei Ya shrank his neck and couldn't refute it. He hesitated for a while, and then stopped talking. Finally, he sighed in his heart: "I originally thought Zhang Yuan was difficult to deal with, but I didn't expect this girl to be so powerful."

He picked up the star shield and left in shame.

After a while, the black crow walked, Zhang Yuan suddenly appeared at the entrance of the passage leading to the depths of the mine. He was wearing a black pure energy combat suit and said as he walked: "I roughly discovered the mine passage within 60 kilometers nearby and found three roads. Walking forward to Passage C, about 30 kilometers, there is an exit to the ground, and the exit is a dense forest. The other two roads, one leading to the Black Hawk Dungeon, is 50 kilometers long. The other leads to the dark abyss, which is an exhaust-gas mine. The mine passage is very, very deep. I walked more than 30 kilometers inside and saw a large number of armed miners."

The three passages are three retreat paths, and with the two of them fully explore the mine tunnel, they can retreat as soon as possible if an accident occurs.

Of course, this is not safe. Zhang Yuan returned to the elite storm printer and began to enter parameters one by one. He began to print the escape necklace.

The principle of this thing is not difficult, it only requires a very high accuracy. Once an error occurs, the space fluctuation energy during quantum jumps easily tear the human body into pieces.

The elite Storm printer is not very accurate enough. When it was built, Zhang Yuan opened up his mechanical heart and devoted himself to it. Lu Meng, who was standing by, ensured that other 3D printers were running normally.

About 2 hours later, Zhang Yuan made two necklaces, one used by himself and the other handed to Lu Meng: "The accuracy of the printer is still poor, and this necklace can only be used safely once. I went out this time and had set up the transmission and reception point, and the distance from us is about 40 kilometers."

The escape necklace has restrictions on the use conditions. You must set up a receiving point in advance, otherwise you will jump randomly. Once you jump to a strange place, such as jumping into a 40-kilometer-deep underground rock formation, you will definitely die tragically.

If the body is lucky enough to be dug out by a miner in the future, it will definitely be a strange story.

"I understand." Lu Meng felt a little relieved. In the underground passage, there was a buffer of 40 kilometers, and even if Dallas was powerful, it would be impossible.

After getting ready, Zhang Yuan began to help Lu Meng build weapons together: "I also heard some news from miners. These days, rebellions have occurred in seven cities around, among which Black Hawk City is similar to that of Youguang City, and it has basically been occupied by miners."

Lu Meng smiled slightly: "This can be seen from the consumption of weapons. These days, we have built 1.7 million weapons of all kinds. It is estimated that Han Sande will not be able to sit still in the near future."

Zhang Yuan still had some questions about this: "Han Sande should be the commander of the legion, right? The Aum Empire and the Dark Shura Empire started a war in the giant beast star field. How could he, a general, leave as soon as he wanted?"

"Of course, other generals can't do it, but Han Sande can. There are two reasons. First, this guy has an unusual love for his territory and cannot tolerate any damage to the territory. Thanks for being able to endure it for so long this time. Second, this guy was a peerless handsome man when he was young, and he looked even more elegant when he was old. Otalie, the queen of the Om Empire, favored him very much and almost obedient."

"Okay." Zhang Yuan had nothing to say.

After that, the two of them still built weapons day and night. The Black Crow would come every 3 days. Every time they took away the built weapons, they would leave 500 million to 700 million star shields for payment. Every six days, he would expand the scale of the printing room.

After half a month, Zhang Yuan and Lu Meng used more than 70 3D printers to create more than 4 million weapons for Hei Crow. The number of pure jade pills he harvested exceeded 13,000 points.

This is a huge sum of money that ordinary people can't imagine, but Zhang Yuan still doesn't think it's enough!

The Sword God Mecha consumes 10 points a day. This thing has absorbed more than 300 spiritual points so far, but its appearance has basically not changed, it is still a stone. The only change is that there are more "clouds" inside.

Zhang Yuan didn't want it to grow into a powerful mecha immediately, so he was not disappointed.

Every day, Zhang Yuan will also turn on the mechanical heart for 1 minute, consuming up to 300 points of pure spirit, just to study the rhodium magnetic engine.

This investment is quite large, lasting for more than half a month, and it has consumed more than 4,000 points of pure spirit, but it is still a long way from understanding the principle of the rhodium magnetic engine. However, Zhang Yuan has gained a lot of mechanical design inspiration from the rhodium magnetic engine.

In addition to these consumptions, Zhang Yuan would give himself and Lu Meng a pure jade pill at 10 o'clock every day. The jade pills were trained together, and both of them had a rapid increase in strength.

Zhang Yuan's degree of strengthening reached 35,000/100,000, and Lu Meng also successfully broke through to the doomsday level.

If the two team up to fight against Dallas in the first stage of the doomsday with fighting skills, there will be a chance of winning.

Therefore, although Zhang Yuan earned Star Shield very quickly, he also consumed it quickly. After half a month, the pure spiritual points he really saved were only more than 4,000.

On this day, Zhang Yuan adjusted the ordinary-level lightning printer just like in daily life, and then went to the elite-level storm printer to create various gadgets.

These gadgets are of various types. Some can help Zhang Yuan solve problems, while others are purely used by Zhang Yuan to verify the operating principle of the rhodium magnetic engine.

Zhang Yuan will print two useful gadgets, one for Lu Meng.

He was busy, and suddenly, with a "buzz~~" sound, the lights in the printing room dimmed. At the same time, all printers in the printing room stopped operating.

"The energy supply has stopped." Lu Meng shouted, and she immediately turned on the emergency light and ran towards Zhang Yuan quickly.

"It's Dallas!" Zhang Yuan's mind turned like lightning. His ears moved and he faintly heard footsteps coming from the passage behind him.

The person who came did not cover up the footsteps, and he was moving forward either fast or slow. It was clearly a dark and narrow passage, but the other person's footsteps gave people a feeling of walking leisurely.

Lu Meng had already arrived at Zhang Yuan: "I felt the murderous intent!"

Zhang Yuan immediately took out the pocket magnetoflow gun and pointed a MediaTek laser gun into the channel. As long as the situation is wrong, he will attack. Lu Meng immediately sprayed alloy spider webs into the channel to detect invisible mechas.

About 5 seconds later, a figure more than 3 meters tall appeared at the end of the passage. The figure was light golden, with diamonds and horns, and turned out to be a small mecha warrior.

The surface of this small mech was shrouded in sparkling water. When he appeared, both of them clearly felt a powerful and familiar mental pressure in the printing room.

Zhang Yuan and Lu Meng looked at each other and felt a look of surprise in each other's eyes: "Dallas, Doomsday Mecha!"
Chapter completed!