The blade is a little curved, and the blade is only three points out of the edge, a failure.

"Teacher......" Long Yuan staggered to his feet and handed the short knife to Chihong.

"Well, that's good. The blade is one foot four inches long, and the widest point is three inches and nine minutes. Chihong then straightened his arm and continued, "The maximum deviation angle is fifteen degrees. ”

As for the blade and the back of the knife, he didn't look at it, no matter how talented Long Yuan was, it was impossible for him to make the weapon completely out of the way in the first formal refining of the weapon.

The talent of refining weapons is important, but without the accumulation of experience and the polishing of time, no matter how good the talent is, it will be a moon in the water after all.

"It's so much different from the blueprints. "Long Yuan was a little lost, now he has a teacher to teach him by hand, but as a result, he can't even refine his weapons straight.

Chi Hong was uncharacteristically this time, and did not reprimand Long Yuan, he said: "Refining weapons is not a matter of overnight, you are barely qualified this time." For the next three days, you have a good rest and carefully ponder every detail of the refining process. ”

"Okay, teacher. ”

Long Yuan walked out of the stone room as if he was drunk, his eyes were dizzy, and he walked like a cat's step. It can be seen how much attention was spent on refining weapons this time.

"Longlo, you old fellow, this time I have to watch my good apprentice ride your newly accepted female disciple down. Hehe......" Chihong looked at the water cutting knife refined by Long Yuan in his hand and smiled from ear to ear.

Ordinary refiners refine weapons for the first time under the guidance of the teacher, and it is very good to be able to form a general outline, and some can't even form the outline of the weapon at all, but Long Yuan not only refined the shape of the knife, but even made the blade sharp.

"The apprentice is good, but the teacher is better. Chihong flicked his finger on the knife and listened to the pleasant sound, where the princess sold melons.

It is true that if it weren't for Chi Hong's previous letting Long Yuan explore how to refine weapons by himself, and going to the blacksmith shop to observe for half a month, he would not have achieved such results.

When Long Yuan returned to the room, he fell asleep and slept for a day and a night.

After waking up, Long Yuan recovered his spirits, and he wanted to move his muscles and bones, so he went to Chimeng to practice his hands, and replaced the air blade with a steel knife, and became familiar with the use of the air blade.

After an afternoon of fighting, Long Yuan still had a blue nose and swollen face, but it was obviously better than before.

Sitting cross-legged on the bed, Long Yuan recalled every detail of refining weapons according to what Chi Hong said. Remembering the situation of refining weapons the day before yesterday, Long Yuan recalled the hints given by Chihong in each step, and thought about why the teacher made such prompts.

For the whole day, Long Yuan closed his eyes and meditated, turning the process of refining weapons over and thinking about the past.

In the process of reviewing and refining weapons, Long Yuan gained a lot.

When Long Yuan was about to try refining the Water Breaker again, Chi Hong threw him a blueprint of the Stone Breaker Axe, which did not indicate the length of the weapon.

"I haven't refined the water knife yet, how can I replace it with a plate axe?" Long Yuan was puzzled, but he didn't ask much, for fear of being reprimanded for no reason.

The technique is still the same as last time, Long Yuan refines the true qi, although the time spent is not less than last time, but this time Chi Hong's prompts are a little less, and Long Yuan also feels less tired than last time.

This time, what Chihong asked Long Yuan to refine was not a first-grade weapon, at most it could only be regarded as a half-grade.

Long Yuan refined the Stone Collapse Axe, and it wasn't until he was almost finished that he felt a slight sour in his temples. After quenching the plate axe, it turned out of the body, and Long Yuan handed it over to Chihong.

"The blade of the axe is not good, and the handle is not straight. Rest for an hour and practice again. Chihong looked at the stone axe refined by Long Yuan and said lightly.

Long Yuan closed his eyes and recuperated, and an hour later, he opened the furnace again to refine the stone axe.

The second time he was refining the plate axe, Long Yuan slowed down his pace and tried his best to improve the flaws in the refining process.

After another hour, Long Yuan handed over the second stone axe to Chihong.

"It's a bit of progress. Go back and rest, come to me in two days and think carefully about every detail. ”

"Oh. ”

After Long Yuan went back, he took a nap for two hours, and then went to Chimeng to make an appointment. Half a day later, Long Yuan washed off the stinky sweat and began to recall the process of refining weapons.

When Long Yuan came to the stone chamber again, Chi Hong handed him a design drawing of a masonry hammer, which was also undimensioned.

"You don't need to strike, it's much easier than a plate axe. Long Yuan looked at the design and said.

The construction of the masonry hammer is extremely simple, with only a cylindrical hammer head and an elliptical cylindrical hammer handle, and there is no need to cut the edge at all.

"Don't talk big. Chihong was lying on a wicker chair with his feet facing the wall.

Long Yuan didn't say much, and began the refining of the masonry hammer. After recalling the process of refining weapons many times, Long Yuan avoided many of the mistakes he had made when refining the Masonry Hammer, and Chi Hong had a lot fewer hints.

An hour and a half later, a masonry hammer was refined by Long Yuan.

"The handle of the hammer is still not straight, and the size of the hammer head on both sides is different, and it is not round. Rest for half an hour, and then refine, and you have to refine twice. ”

"Teacher, how do you refine the handle straight?" Long Yuan asked. Although the masonry hammer was not difficult to refine, he was always unable to refine the straight part to a regular order.

Chihong didn't speak, but held a wooden stick in one hand and leaned against the blade of the long sword in the other. Then he swirled the stick, and some of the wood chips were scraped off.

The last stick, which had been somewhat curved, was made into a wooden post, round and straight.

When Long Yuan saw this scene, he was inspired and spun!

After resting for a while, Long Yuan couldn't wait to refine the masonry hammer again.

It didn't take long for it to be the model making link again, and after Long Yuan wrapped the metallic True Qi in the True Qi material, he began to try to rotate the True Qi material.

But the situation that Long Yuan imagined did not appear, it was extremely difficult for the True Qi material to rotate, and Long Yuan wasted a lot of effort to rotate it, only to find that the flames were pushed away by centrifugal force.

The refining process reached an impasse.

Long Yuan's brows furrowed, and after thinking for a long time, the corners of Long Yuan's mouth rose slightly.

"Teacher, you just tell me the method directly, just give me a hint and let me think of the method by myself. Long Yuan said in his heart.

After controlling the Immortal Flame to wrap the metallic True Qi and True Qi materials again, Long Yuan drove his mental power to make the outermost flame begin to move around the True Qi material, squeezing as it moved.

Finally, as the flames cooled down, a cylindrical handle began to take shape.

Chihong lay on the rattan chair, looked at the scene on the wall and stroked his beard with satisfaction.

The brain is for thinking.

Click.

Long Yuan sat cross-legged on the ground, his face was already covered with beads of sweat the size of beans, controlling the Immortal Flame to compress the thick liquid true qi was enough to drain his mind, not to mention the distraction to control the Immortal Flame to rotate and compress.

An hour later, another masonry hammer was refined by Long Yuan.

Long Yuan was lying on the ground, and there seemed to be a buzzing sound in his head.

"There is progress. Chihong only said one word.

Long Yuan closed his eyes and recuperated, he knew that the masonry hammer still needed to be refined once.

After resting for two hours, Long Yuan began the third refining, and by the time the refining was over, he was already paralyzed on the ground.

This time, when he handed over the masonry hammer to the teacher again, even Chihong felt very satisfied.

It's too much progress.

Chihong threw him a few books and said, "You don't have much experience, and the grasp of some sizes is far from enough." Reading through these books will be of great help to you in refining weapons in the future. ”

Long Yuan held a few books in his hand, they were "Nine Chapters of Arithmetic", "Zhou Ji Sutra", "Sun Tzu Sutra", "Multiplication and Division", etc.

"It's the same as before, go back and rest, and think about the whole refining process. Come to me one day later. In the future, you will have one more task, which is to know the length. ”

After Long Yuan went back, he slept a lot, and after waking up, he went to move his muscles and bones, find Chimeng and then be beaten.

In the afternoon, after Long Yuan filtered the process of refining the masonry hammer a few times, he opened the "Nine Chapters of Arithmetic", which was obviously not an exercise, but an algorithm.

"Yes, it is impossible to borrow measuring tools in the process of refining weapons, you can only compare them with familiar lengths. I don't have much experience, and I don't have a good grasp of the length, so I can only convert it according to the proportion. Long Yuan said.

It is also a feasible method to convert familiar lengths to unknown lengths. For example, if a person has a vague concept of height, and sees a man who is about seven heads tall without reference, he will have a few points in his heart, which is a normal height.

Adult men are generally about seven heads tall, and martial artists often flip and jump because of martial arts, and they eat a lot of food, so they will be taller than seven heads. Long Yuan has grown now, his body is long, and his height is almost eight heads long.

Comparing and measuring other lengths with familiar dimensions naturally requires calculations, and Chi Hong's intention for Long Yuan's basic mathematical classics is this.

In the weapon design drawing, it is impossible to mark all the lengths, some of the design drawings are extremely complicated, and some parts may only give the area if they are square shapes, so you need to open the square calculation. What's more, some high-grade weapon blueprints require refiners to find the right size by themselves, and it is not feasible to have more or less points.

If you make a mistake in the calculation, the length will be wrong.

After Long Yuan has accumulated a lot of experience in refining weapons, he can also know how much the size is appropriate just by visual inspection without calculation, but he can't do it yet.

"Today Arita wide fifteen steps, from sixteen steps. The answer was: One acre. ”

Long Yuan began to flip through the "Nine Chapters of Arithmetic" and carefully studied its contents.