The rain fell a little late, and Su Yan originally planned to expand the planting area to the west and north by a distance of two hundred zhang, but the burned area had already exceeded two hundred and fifty zhang, and part of the jungle originally reserved for the smelting area was also burned, and the old residential area was engulfed in flames.

In the pouring rain, the raging fire was suppressed, and after a few moments, there was no place to find anything still burning, leaving only patches of ashes soaked in the rain.

The next morning after the rain, Su Yan followed Team C to the copper mine, and found that the section of the road from the tribe and the section of the road near the copper mine had been cleared by fire, so Su Yan was relieved.

When he was marching, Su Yan told Shen again about setting fire to open up the wasteland and opening up the road, and this time Team C will replace Team B to stay in the copper mine to mine copper ore, so the next matter of opening up the road will be handed over to Shen.

In the next month, after many reclamations by the Dragon Tribe, the road from the Dragon Tribe's residence to the copper mine was finally opened, and Su Yan led the clansmen to clean up the area about four zhang wide and level it slightly, and this four-zhang wide area is the road that has been determined, maybe this road will be paved with small stones for a while, and upgrade from a dirt road to a gravel road.

Before the road was opened, it took about three hours to travel from the Dragon Tribe to the copper mine, but now walking on this opened up road, the walking time has been shortened to two hours, and if this road is repaired properly, the walking time will continue to be shortened.

"Maybe we should open up another road to the salt pans." Su Yan thought in his heart.

The Dragon Tribe will send a team to the salt pan every month to pick salt, it takes three and a half days to walk from the dragon tribe to the salt pan, the total distance is expected to be more than 200 miles, and it takes ten days to pick salt back and forth, which is very troublesome.

If the road from the Dragon Tribe to Yantian is opened, it will take three and a half days to walk, but in the future, it will only take two and a half days at most, which will save about twenty days a year.

"Yes, this path should be opened."

After thinking about the idea of "opening up a new road", Su Yan immediately thought that it was a feasible idea and should be implemented as soon as the rainy season was not over.

Thinking about it, Su Yan set the road from the Dragon Tribe to Yantian, not the road from the Dragon Tribe to Yantian that the salt mining team had been taking before, but the new road from the Dragon Tribe to the copper mine and then to the Yantian, the Yantian is probably due west of the copper mine, and the two areas are about 180 miles apart.

The distance between the two roads will not be much different, not to mention the new road from the Dragon Tribe to the Copper Mine to the Yantian, in which the distance from the Dragon Tribe to the Copper Mine has been opened up, which can save a lot of trouble.

The idea of opening a road from the dragon tribe to the salt pans was feasible, but Su Yan thought of a small problem, once this road was opened, other primitive tribes could follow this path to discover the salt pans, copper mines, and dragon tribes.

The Dragon Tribe is not a small tribe, but a regional overlord tribe with a total population of two thousand, Yantian is unmanned, the copper mine is garrisoned by one hundred and eighty adult laborers, and the number of people who stay in the Dragon Tribe is even more than a thousand, even if there is any vicious tribe, it will not be the opponent of the Dragon Tribe, but the people stationed in the copper mine need to be more vigilant.

In the evening, Su Yan and the four patriarchs of the left-behind tribes, Zhi, Yuan, Biao, and Song, got together.

"Wisdom, how about this road?" Su Yan asked Zhi that Zhi's team A now goes back and forth to the copper mine every two days.

Zhi: "Wang, after opening up this road, it takes the team a lot less time to get to the copper mines, and it is easier to walk than to walk in the jungle. ”

"Hmm." Su Yan nodded and continued: "The tribe will also spend a lot of time on the road when sending people to Yantian to mine salt every month, and while there are still two months left in the rainy season, I plan to send people to open up the road to Yantian, and leave this matter to the two of you to do it, select sixty clansmen, and open up a new road from the copper mine to the Yantian." ”

"No." Zhi and Biao's voices sounded one after the other, accepting Su Yan's order.

After that, Su Yan told Zhi He Biao in detail about the situation of opening the road from the Dragon Tribe to Yantian, and the most important thing was to pay attention to his own safety.

The tribes in the surrounding area of the dragon tribe have been annexed or conquered by the dragon tribe, but there are other primitive tribes farther away from the dragon tribe, and before these primitive tribes have not been annexed or conquered by the dragon tribe, they are always a threat, and the wasteland team led by Zhi and Biao must be careful and careful, and put life safety first.

Zhi Yao and Biao took their clansmen to open up the road, and Team A was handed over to Song to lead.

Two days later, armed with charcoal, torches and straw hats to protect them from the rain, a team of sixty-two people set out, and for the two months leading up to the autumn they were to make as many roads as possible from the mines to the salt pans, where they were temporarily stationed to help mine the ore in fine weather.

The tasks are all explained, Su Yan sits in the tribe and concentrates on making bellows, with the experience of many previous bellows production failures, Su Yan has already figured out some clues.

The challenge in making the bellows is how to make the bellows blow air out of the exhaust port when pushing in and pulling out.

"You can use a board in the wooden box to divide the wooden box into two layers, one large and one small." The thought in her head allowed Su Yan to take a solid step in the direction of success.

Su Yan was not a carpenter in his previous life, but in this life, he did carpentry work back and forth in order to make bellows, and I am afraid that Su Yan's carpenter work in the Dragon Tribe is the best.

The wood is cut with a saw, and then black lines are drawn on the wood with a ruler and black charcoal, and then the wood is cut with a saw according to the black lines, and finally the planks are captured.

The ruler Su Yan used was not the copper ruler, but a wooden ruler.

The first ruler of the dragon tribe was a copper ruler, Su Yan used hemp rope to segment, carved marks on the copper ruler with a hard stone, and finally made a copper ruler with an accuracy of "half a cent (equivalent to 1.5 millimeters)".

It is also possible to make a wooden ruler, but the wooden ruler will eventually decay, and the copper ruler can be stored for hundreds of years without changing, this first copper ruler is the standard, which is of great significance to the dragon tribe, and the length in the future must be in accordance with the standard of this copper ruler.

The main body of the bellows made by Su Yan is not large, one foot long, four inches wide, and five inches high.

Soon, Su Yan used a saw to lift out seven wooden planks, and according to the largest of the six sides of the wooden box, three planks of the same specification were made.

The six planks of the wooden box are not nailed together, but cut out small squares with concave and convex gaps on the edges of the six wooden planks, and finally the edges of the wooden planks are concave and convex, and a stable small wooden box appears.