The production of the elevated highway is not complicated, and the fifth mystery does not have much physical knowledge to study structure and balance.

In the case of putting aside these knowledge points, he can only use the heaviness to ensure the sturdiness of the copper shelf.

After making the heavy red copper shelf, the fifth Xuan began to make the pulley set.

This is a slightly complicated process, and the fifth Xuan needs to take into account the load-bearing problem of the pulley and copper chain, and it takes a lot of time to find the right proportion.

In the second half of the night, Fifth Xuan finally completed one, and he couldn't wait for people to try it.

The warriors pulled the chains to lift the pillars, then let go and used gravity to drive the pillars to smash against the ore below.

"Boom. ”

It was full of smoke and dust, and it was much worse than the giant hammer, but Fifth Xuan felt that the effect was still good, at least the destruction of this machine was not so easy.

The warriors tried a few more times, and the underside of the shelves was already filled with broken copper ore, and the copper pillars had also changed shape, making them unfit for further excavation.

The fifth Xuan directly wrapped the huge machine with totem fire, melted the copper pillar and repaired it directly.

After completing the repair of the machinery, the Fifth Xuan directly erected one of the same machines directly on the open-pit mine.

After determining the various proportions, such a job can only be said to be complicated and no longer troublesome.

"How did you do that?"

The Sun Totem leaned over and asked the Fifth Xuan.

He tried refining the open-pit ore directly on the ground, which was very slow, but he was the only one of the totems who could do so.

"A mechanical principle, a fixed pulley that can change direction, a movable pulley that can reduce the weight by half, and the combination of the two makes such a machine. ”

The fifth Xuan opened his mouth to explain, but the day totem heard it in a fog.

"It's amazing, can you teach me this?"

Although he didn't understand, the day totem still asked with anticipation.

Fifth Xuan glanced at him in surprise, and when he saw that he didn't seem to be joking, he nodded and agreed.

In his previous life, he was not a science and engineering man, and his physics knowledge reached the top in high school, and most of it was forgotten, so it was good to be able to find some that could be used.

Since the day totem likes it, Fifth Xuan doesn't mind doing some guidance in the general direction and letting him study it on his own.

Next, to build this kind of large machine, the fifth Xuan explained the day totem in detail, every step, every idea, he tried to explain in detail as much as possible.

Moon Totem came over curiously and listened for a while, but after a while, she lost interest and turned to leave.

However, the stag totem has been listening, but he has never asked, and the fifth Xuan doesn't know if he understands or not.

When Fifth Gen made the third machine, the day totem said that he also wanted to try to make one, which was approved by Fifth Gen.

Although there are still many knowledge points that the day totem does not understand, this does not prevent him from drawing cats and tigers, after all, although this machine is large, it is far from being fine.

While the Fifth Gen was building a new machine, the Sun Totem was also trying to make it next to it.

The speed at which he smelted copper was not inferior to that of the Fifth Xuan, but it was relatively slow in the components of the machine.

When the fifth Xuan finished making his own machine, the machine made by the day totem was only halfway through, and the pulley set was not finished yet.

"You go on, and I'll stand next to you another. ”

The Fifth Xuan did not accept that the Sun Totem did half the work, but chose to set up another machine in the rear.

This open-pit copper mine is huge, and at the speed that the fifth Xuan can make four large machines in one day, it will take a long time to fill them all.

If the day totem can be learned, it can relieve a lot of pressure for the fifth mystery.

When the Fifth Gen made another one, the machine made by the day totem was almost finished.

At this time, Fifth Xuan was not in a hurry to continue the production, but carefully checked the machine architecture of the day totem production.

Very similar to himself, there are some differences that do not affect his use in his opinion.

"Is that okay?"

When all the production was completed, the day totem asked the fifth mystery.

"Practice makes you know, try it and you'll know. ”

The fifth Xuan did not make a presumptuous comment, but directly called the soldiers to experiment.

The results were very good, there were no quality problems, and a happy smile appeared on the face of the day totem.

"Red copper is very soft, so it needs to be repaired after a period of use, otherwise irregular red copper is prone to accidents. ”

The Fifth Gen said as he lit his own totem fire here and began to repair the copper pillar, while feeling the machine made by the totem in more detail through the subtle perception of the totem fire.

"The legs of this shelf, if you carefully perceive it to be thick at the top and thin at the bottom, which is not conducive to stability, must be thin at the top and thick at the bottom. ”

Fifth Xuan said to the Sun Totem, and directly fixed the place he felt was problematic.

The day totem nodded obediently, looking like a primary school student being criticized by a teacher.

"It's already done well, and it will be much faster with your help. ”

Fifth Xuan saw that he was a little nervous, so he opened his mouth again to encourage.

After being praised, a happy smile appeared on the face of the day totem, which was not in line with his temperament, and it seemed that he really liked these machines.

After repairing the machine made by the Sun Totem, the Fifth Xuan summoned the Wolf Witch and asked him to send someone to return to the Fire Tribe to bring the leader of the Sun Totem Tribe.

The leader of the Sun Totem Department has the Sunset Bow in his hand, which is the body of the Sun Totem, and after taking it, the Fifth Xuan can send the Sun Totem into the Sunset Bow, so that they can act separately.

"Hasn't the Smelly Grass Tribe Witch come back yet?"

A long time has passed, and the Stinky Grass Tribe Witch has not returned, and the Fifth Xuan is a little puzzled.

Wolf Witch has always been responsible for external communication, but he knows what the problem is.

After confirming that some of the small tribes that escaped did not kill the Earth Spirit Tribe's warriors, the Smelly Grass Tribe began to explore outward, hoping to persuade them to come back, and also hoped to rescue more Earth Spirit Tribe's warriors. This makes his whereabouts a little erratic and difficult to find. ”

Fifth Xuan nodded in the gossip space, not dwelling on this issue.

"What about the leader of the Stinky Grass Tribe, is there such a big movement on our side, do they have no reaction?"

The Fifth Gen is busy making machines these days, but he doesn't pay attention to these things.

"They asked if they wanted to help, and the people of their tribe were very heat-resistant and strong, so they could come and help, but the three generations of Baicao Witch were not sure what you meant, so they refused. ”

Wolf Witch said.

Fifth Xuan nodded, thought for a while and wrote: Let them help, such a secret as the mine cannot be kept.

The craftsmanship of making bows and arrows is somewhat technical, and now it has spread out and been learned by many tribes, not to mention copper smelting.

If it was a previous life, there might still be some technology involved, this world is directly totem fire smelting copper, the speed is fast and pollution-free, and it is not complicated to learn secretly, so he is not prepared to engage in any technical barriers.

Although he gave up this technical barrier, he needed copper ore to smelt copper, and he didn't want to share this copper mine.

"There are a thousand totem warriors stationed here, selected from the Sun Totem Department, see if anyone is willing to come, and tell the leader of the Sun Totem Department that their totem will stay here, and the Sun Totem will be responsible for copper refining from now on, as a spirit department of the Fire Tribe. ”

The fifth Xuan thought for a while and made such a decision, which made the Sun Totem's eyes widen in surprise, while the Moon Totem looked envious.

"I can also make copper. ”

Moon Totem popped up and said.

Fifth Xuan glanced at her, deeply impressed by her cheekiness.

Among all the totems in the gossip space, she is the slowest in copper smelting, and she is embarrassed to pop out at this time.

"I still want to follow the Lord in the gossip space. ”

Without waiting for the fifth Xuan to answer the words of the moon totem, the day totem jumped out and said it by itself.

Fifth Xuan glanced at him in surprise, what he saw in the eyes of the Sun Totem was sincerity.

"I thought you had always wanted to leave. ”

The fifth Xuan believes what the sun totem says, because this is an upright guy, even if he rebels, he likes to make righteousness and light.

"It used to be, but I'd like to learn from you how to make more of this stuff, and I'm interested in that. ”

Sun Totem pointed to the roaring machine in the distance and said bluntly.

Fifth Xuan touched his face, a little helpless for this upright guy: "If you want to stay in the gossip space, it's okay, but you have to leave a totem fire with wisdom here, and he is responsible for these things we do." ”

The day totem listened and nodded with you, and accepted the arrangement of the fifth Xuan.

He was a little anxious and wanted to separate the power now, but he was held down by the Fifth Xuan.

"Wait a minute, wait until you can eat these things more clearly, and then leave the tinder, and then the spirit of the tinder will understand more. ”

There are two kinds of fire, one is the fire that has no thoughts at all, and the other is the fire that can carry part of the original totem memory, and the fifth Xuan wants him to leave the second kind.

The day totem obediently did not continue, and when he turned his head, he saw the moon totem looking at him like a fool.

Neither the Fifth Xuan nor the Sun Totem paid any attention to the Moon Totem's interest, and they began to build such large machines again.

At the beginning, the fifth Xuan made two, and the day totem made one, and slowly his speed began to increase, and on the fourth day, he could barely catch up with the speed of the fifth Xuan.

And these days, Moon Totem has also begun to learn to make machines, but her interest is obviously not here, and she always slips away when the fifth Xuan explains.

The purpose of the Moon Totem is not difficult to guess, because she has already written her desire on her face: Leave me here to smelt copper.

For her expectations, the fifth Xuan turned a blind eye and just blindly made machines.

When I got the news that the Stinky Grass Tribe Witch had been found and began to return, it was more than ten days later.

After these days of production, the Fifth Gen can now make eight units a day, and the Sun Totem can also make seven units.

Even the moon totem can make one, but this guy has only made one and a half for three days of fishing and two days of drying nets.

The Ox Totem and the Buck Totem also tried to learn, but neither of these guys had much brains and ended up failing.

The eight totem poles have never been interested in learning, but they are very interested in refining red copper, and they muster up their strength to smelt copper every day, and the results are very high.