Qin Liang faced a large pile of metal ingots in front of him, all of which Yi Yu had picked out from the treasure house according to his request.

According to Io's standards, these are just the lowest materials, which can only be used to forge ordinary spiritual weapons, and there is no way to create good things.

Therefore, there are not many of these materials in the treasure trove of Io.

There is no way, the Golden Dragon Clan is so rich, and this material is placed in the treasure trove, just to enrich the inventory variety, and not to treat it as a rare thing.

But for Qin Liang, this is the best material for casting spiritual power cannons.

Casting a spiritual cannon doesn't require too good materials.

After all, this is a weapon used in secular warfare, and if it really creates the kind of weapon that can destroy a city with one cannon, Qin Liang believes that the Heavenly Dao will not ignore it.

The person who created this kind of weapon, even if he didn't have the slightest spiritual power cultivation on his body, the Heavenly Dao would not let it go, and there would inevitably be an unbearable heavenly curse.

Therefore, the power of the spiritual power cannon, Qin Liang set its limit to a level that could deal with the sixth-rank martial arts.

Six-rank martial cultivation should be the universal strength of the most powerful Bear Soul Army of the Chu royal family.

Therefore, from the beginning of the design of the spiritual power cannon, it was aimed at the trump card power of the Chu royal family.

Of course, on this basis, Qin Liang is also ready to create a few artillery guns that can kill the stronger ones, but it is slightly more difficult to build, even if Qin Liang wants to produce it on a large scale, he can't do it for a while.

Qin Liang transferred a group of warriors who were good at smelting from the Pingchu army, although the level was average, but it was still possible to push the metal ingot into the furnace and melt it.

But casting a spiritual cannon is not simply a cannon barrel to come out.

How to drive the spiritual power cannon, how to make the power of the spiritual power cannon meet the requirements, and maintain the stable output of energy, this is the key.

The kinetic energy talisman, driving and stabilizing the formation, is the key.

And Qin Liang knew even more that even in a world similar to the Flood Wilderness now, the casting of the spiritual power cannon had to follow the various conditions in the technology tree system that he had seen in his previous life. The only difference is that the supply of energy power is not the same.

In that world, it is **, electricity, chemical enchantresses, etc., but in this world, it is much simpler.

It's spiritual power.

With the means he knew, converting spiritual power into energy could burst out with the same, nay, more powerful effect.

"The host...... I don't think it's possible for me to catch up with you in my life in terms of wisdom......"

Yi Yi looked at the blueprint of the spiritual power cannon drawn by Qin Liang and sighed faintly.

Qin Liang just glanced at the Spirit Power Cannon of the Shaking Mountain Army from a distance, and in less than an afternoon, he drew a diagram of the structure of the Spirit Power Cannon.

Qin Liang didn't simply draw out the shape of the spiritual power cannon, but structured the various core keys one by one in detail.

For example, how the spirit cannon excites the projectile, this is designed to be dynamic. And Qin Liang correspondingly made a detailed plan on the framework of power: use the formation to interact with the power talisman, the formation is in a fixed form, engraved on the base of the spiritual power cannon, and the fire energy talisman is used as energy, when used, it is placed in the formation, and the formation stimulates the power in the talisman, and the projectile inside is excited.

And how to make the projectile accurately hit the target, there are several schemes, there are pure arithmetic methods, by calculating the formation, the kinetic energy provided by the talisman and the projectile trajectory for budgeting, and finally get a standard kinetic energy scheme, which can determine where the target can be reached by each bombardment.

The second is to correct it through talismans and formations to reach the desired goal.

The second one seems to be more reliable, but Qin Liang feels that the first one is the right way, because the cost can be lower, and after some mental calculations, Yi Liang also determined that Qin Liang's judgment was correct.

However, the second method can be used in a short period of time, such as in the current situation, when there is no way to conduct a large number of tests on the spiritual power cannon, and there is no more data to calculate the law, the second correction method can temporarily solve the urgent need.

In addition, there are many problems that Yi Yi has not considered at all, such as how to solve the sealing performance of the spirit power cannon, how to improve the service life of the cannon barrel, and so on, Qin Liang has already listed them when he designed them.

After Qin Liang raised the problem, he did not abandon it, but proposed solutions one by one under the problem.

Although he has not yet seen the physical object of the spiritual power cannon, judging from the plan and data on the drawings, Yi Yu can already determine that the spiritual power cannon created by Qin Liang will definitely have great power.

"Just glanced at the spiritual cannon......"

Io muttered, "I'm afraid I won't be able to have this kind of wisdom in my life......"

Io sighed in her heart.

"Don't be emotional......"

Qin Liang patted Yi Yao's yellow eel head and said, "Hurry up and work, melt this batch of metal ingots for me, these cannons are a surprise for the strong people of Chu State!"

"Got it!"

Io whined, and a golden flame erupted from his mouth, and in an instant, the metal in the furnace was turned into molten gold.

"Leave it to me here, with this drawing, if I can't create a spiritual cannon that can kill the Nine Rank Martial Cultivators with one shot, I will cut off the meat and drink the master!"

Io swore an oath.

In terms of wisdom, it can't catch up with its master, but Yi Yi feels that it also has extraordinary attainments on the way to refining weapons, and it must create a spiritual cannon to open Qin Liang's eyes.

"That's good......"

Qin Liang was happy to shake his hands and be the shopkeeper.

In fact, it's not that easy to be a hands-off shopkeeper.

Leaving Io's secret workshop, Qin Liang went to the workshop built under the auspices of Fei Du.

Qin Liang asked Fei Du to invite a group of refiners to come over and help cast the cannon.

Naturally, Fei Du agreed.

In fact, in this situation, except for Fei Du to come forward, Qin Liang couldn't find a qualified refiner anywhere.

The entire Great Zhou Immortal Dynasty entered a state of all-out war at this time,

A sect like the Heavenly Wolf Sect that is good at refining weapons has long been invited by the Son of Heaven to Wangji to build weapons for the Immortal Dynasty.

And the other refining sects that were good at forging weapons were also recruited by the Immortal Dynasty, and they were not idle at all.

Fei Du still had a lot of face in the Immortal Dynasty, he went to Shaofu to negotiate, and soon led twenty refiners to Gucheng.

Of course, these refiners didn't want to go to a dangerous place like Gucheng with Feidu.

The news of the siege of Gucheng by the Shaking Mountain Army had already reached Wangji through Jingyue.

Although Gucheng achieved a small victory, almost no one in Wang Ji was optimistic about the Ping Chu army and Ping Chubo in Gucheng, thinking that the fall of Gucheng was a matter of time.

So no one's brain is in the water, and they will go to Gucheng to find death at this time.

Fei Du swore an oath, patting his chest and assuring that the solid city is teleportation array was always open, and once there was any risk, these refiners could leave as soon as possible, plus Qin Liang's promise, finally let these twenty refiners come to this place.

PS;Today's holiday,It's a little late to update.,Have you eaten zongzi?I wish you all a safe and healthy Dragon Boat Festival!There are still ~~.