After figuring out the way forward, Zhang Yuan once again concentrated on becoming an arms supplier to the miners.

He began to produce improved versions of the laser coupling and focuser, and the production of normal weapons slowed down slightly, but without delay.

Every few days, the black crow will come over to get a weapon, and the quality of the weapon he gets every time is very stable, and the effect of the new weapon is also quite good, and the station of the city of light is directly attacked by the Lianfa laser beam, and the city guard in the station was killed. Miners have received rave reviews about the new weapon.

In this regard, the black crow is naturally very satisfied.

However, he found a strange phenomenon, the printing room was no longer two people at the same time, whenever he came, he either saw Zhang Yuan or Lu Meng, and there was almost no situation where the two were present at the same time.

Once Lu Meng was present, he asked this question.

Lu Mengtou didn't look back, and sneered while adding materials to the printer: "There are only two of us, and we have to control more than 40 printers." More than 1 million laser guns were produced in 10 days, and new weapons were being created. Are you robots that don't need a break? Zhang Yuan was sleeping in the lounge. ”

The black crow patted his head, his heart full of guilt: "I'm sorry, I'm sorry, I'm confused, I apologize." ”

After speaking, he left the weapon printing room lightly, and after half an hour, he sent another 100 million star shields, and sincerely apologized to Lu Meng: "I'm really sorry, you guys have really worked hard these days, and I don't have anything good." These star shields should be regarded as compensation. ”

Lu Meng glanced at him coldly: "Take the things back." We are here to do business, and we are just doing business, we get what we pay for, and we don't come to make friends! ”

She is full of aura, her skin is like snow, her long hair is like ink, and she is as cold as an ice rose.

"......." The black crow shrank his neck, he couldn't refute it, hesitated for a while, stopped talking, and finally sighed in his heart: "I 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 walked away.

Not long after the black crow left, Zhang Yuan suddenly appeared at the mouth of the passage leading to the depths of the mine, he was wearing a black pure combat suit, and said as he walked: "I roughly explored the mine passage within 60 kilometers nearby, and found three roads. Walking straight ahead to Passage C, about 30 kilometers away, 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, are 50 kilometers long. The other led to the dark abyss, where there was a mine with exhaust gases, and the mine tunnel was very, very deep, and I walked more than 30 kilometers in it and saw a large number of armed miners. ”

Three passages are three retreats, plus the two of them fully explore the mine passages, once an accident occurs, they can retreat as soon as possible.

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

The principle of this thing is not difficult, but it requires a fairly high degree of precision, and once there is an error, the spatial fluctuations during the quantum jump can easily tear the human body to pieces.

The accuracy of the elite-level storm printer was not enough, and when it was built, Zhang Yuan opened the heart of the machine and devoted all his energy to it. Lu Meng on the side ensures the normal operation of other 3D printers.

About 2 hours later, Zhang Yuan made two necklaces, one for his own use, and one handed to Lu Meng: "The accuracy of the printer is still poor, and this chain can only be used safely once." When I went out this time, I had already set up a teleportation and receiving point, which was about 40 kilometers away from us. ”

The escape necklace is limited by the conditions of use, and the receiving point must be set up in advance, otherwise it will jump randomly, and once it jumps to a strange place, such as jumping into a 40-kilometer-deep underground rock formation, it will definitely die quite tragically.

In the future, if the body is lucky enough to be dug up by a miner, it will definitely cause a moment of surprise.

"Understood." Lu Meng's heart was slightly relieved, in the underpass, there was a buffer of 40 kilometers, no matter how powerful Dallas was.

After getting ready, Zhang Yuan began to help Lu Meng build weapons together: "I also heard some news from the miners. These days, there have been rebellions in 7 surrounding cities, among which Black Eagle City is in a similar situation to Spectral City, which 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, and it is estimated that it will not be long before Han Sande will not be able to sit still. ”

Regarding this matter, Zhang Yuan still had some questions in his heart: "Han Sande should be the commander of the legion, right?" The Aum Empire and the Dark Shura Empire are at war in the Behemoth Star Domain, how can he, a general, leave as soon as he wants? ”

"Of course other generals can't, but Han Sande can. There are two reasons, first, this guy has an unusual love for his territory, and he can't tolerate a little damage to the territory, and it's really hard for him to endure it for so long this time. Second, this guy was a peerless beautiful man when he was young, and he looked even more personable when he was old, and the empress of the Aum Empire, Ottali, was very fond of him, and he was almost obedient. ”

"Okay." Zhang Yuan had nothing to say.

After that, the two of them continued to build weapons day and night, the crow would come every 3 days, and every time he took away the weapons he created, he would leave a payment of 500 million to 700 million star shields, and every six days, he would expand the size of the printing room.

After more than half a month, Zhang Yuan and Lu Meng used more than 70 3D printers to create more than 4 million weapons of various kinds for the black crow, and the number of pure jade pills he harvested has exceeded 13,000 points.

This is a huge amount of money that ordinary people can hardly imagine, but Zhang Yuan is not enough!

The Sword God mecha consumes a fixed amount of 10 points every day, and this thing has absorbed more than 300 spirit points so far, but its appearance has basically not changed, it is still a stone, and the only change is that the internal 'clouds' have become a little more.

Zhang Yuan didn't want it to grow into a powerful mecha right away, so he wasn't 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 more than half a month, and more than 4,000 points of pure spirit have been consumed, but it is still far from understanding the principle of the rhodium magnetic engine, but Zhang Yuan is not without gains, from the rhodium magnetic engine, he has gained a lot of mechanical design inspiration.

In addition to these consumptions, Zhang Yuan will give himself and Lu Meng 10 points of pure jade pills every day, and the jade pills cooperate with the exercise, and the strength of the two of them has improved by leaps and bounds.

Zhang Yuan's enhancement level reached Doomsday 35000/1000000, and Lu Meng also successfully broke through to the Doomsday level.

With such a force, if the two join forces and use martial arts to fight against Dallas in the upper part of the apocalypse, it is not impossible to win.

Therefore, although Zhang Yuan earned the star shield very quickly, the consumption was also fast, and after more than half a month, he only had more than 4,000 pure spirit points that he had really saved.

On this day, Zhang Yuan, just like usual, adjusted the ordinary Thunderbolt printer, and then went to the elite Storm printer to create all kinds of gadgets.

There are many kinds of these gadgets, some of which can help Zhang Yuan solve problems, and some of which are purely used by Zhang Yuan to verify the working principle of the rhodium magnetic engine.

For those useful gadgets, Zhang Yuan would print two, one for himself and one for Lu Meng.

He was busy talking, and suddenly there was a sound of 'buzz~~', the lights in the printing room dimmed, and at the same time, all the printers in the printing room stopped running.

"The energy supply stopped." Lu Meng shouted, she immediately turned on the emergency lights, and at the same time ran towards Zhang Yuan quickly.

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

The person who came did not hide the footsteps, and the speed at which he was moving was neither fast nor slow, it was obviously a dark and narrow passage, but the footsteps of the other party gave people a feeling of leisurely walking.

Lu Meng had already rushed to Zhang Yuan's side: "I feel the killing intent!" ”

Zhang Yuan immediately took out the pocket magnetoflow gun, and at the same time aimed a joint laser gun at the channel, as long as the situation was not right, he would attack. Lu Meng immediately sprayed alloy cobwebs into the passage to detect the stealth mecha.

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

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

Zhang Yuan and Lu Meng glanced at each other, and they both felt surprise in each other's eyes: "Dallas, doomsday-level mecha!" ”

At the same time, the mecha at the end of the passage spoke: "You guessed it right, I'm Dallas. As for mechs...... Hehe, I have a lot of mechs, and this is just one of them. ”[.]