Since Chen Fei knew the reason why these craftsmen couldn't produce quickly, he naturally had to find a way to change the mode of production that became an assembly line. If you want to get assembly line production, you must first come up with a unified standard. And to come up with a unified standard, it is necessary to develop precise weights and measures. Chen Fei found that the ancient weights and measures were too "big". The units that measure distance are a stone's throw away, a step, or a mile or two miles. In ancient times, the smallest unit was one cent, but one cent was still too "big". If there are many times when the craftsman is wrong by one point, it is an error of three millimeters. A lot of times, it's a millimeter away and the whole thing can't be put together. This kind of unit, where is the unit for craftsmen to make tools!

Therefore, Chen Fei first had to formulate a new weights and measures, that is, relatively precise units. For example, what decimeters, centimeters, millimeters, etc. However, when Chen Fei crossed, he didn't carry anything like a ruler, and according to common sense, there was no way to calculate one meter in the future. However, Chen Fei has his own way, he knows that the width of his domestic copycat mobile phone is exactly fifty millimeters, and he has concluded that the width of his mobile phone is exactly fifty millimeters, so it is easy to calculate the length of one decimeter and one meter. It is also possible to gradually hold the paper with a straight line drawn on it, and then it can be determined by folding the paper in half, so that it becomes a distance with millimeter accuracy. Therefore, there is no problem in using the weights and measures of later generations, and Chen Fei can easily deduce these weights and measures of later generations.

"Okay, when you process next, you have to use these weights and measures, you have to change them as soon as possible, and change your work habits, so that you can adapt to the next work. We're going to be going to use an assembly line, and you have to adapt to it as soon as possible, or we'll just be able to we're going to get rid of you. Chen Fei said.

But Yang San was embarrassed and said, "Chen Langzhong." If we change the weights and measures without authorization, will we hold the emperor accountable? ”

In ancient times, weights and measures were a very important unit that could not be easily changed. Therefore, if they want to change, they must get the emperor's consent, otherwise they will not dare to change other weights and measures without authorization. Although they knew that Chen Fei's weights and measures were more accurate and precise, they did not dare to use them without the consent of their superiors.

"No, since the emperor has granted me full power, then I also have the right to temporarily change the weights and measures. Moreover, our weights and measures are only used internally. I won't use it anywhere else, so don't worry. Chen Fei said.

Of course, Chen Fei could not have thought of promoting this new type of weights and measures to the whole country, after all, if it was promoted to the whole country, the meaning would be different. If it's just used in the armory, it's not a big problem, and you can fool it around. However, if it is used throughout the country, Li Shimin may not agree to it. And the formulation of weights and measures is also the business of the Ministry of Industry, and if someone from the Ministry of War interferes without authorization, it will cause a backlash from the Ministry of Industry.

"Next. I'm going to design something called a vernier caliper, and you're going to use this vernier caliper to measure it. This vernier caliper is capable of measuring to an accuracy of one hundredth of a millimeter, which is a very small unit. The tools you will make in the future. The accuracy is to reach the level of silk meters. Chen Fei said.

Chen Fei explained to these craftsmen very directly that the future standard should reach the level of silk rice, and silk rice is one-tenth of a millimeter. And Chen Fei believes that there should be many craftsmen who can do it, because although there were no such precise instruments in ancient times. However, Chen Fei thinks that craftsmen can achieve it. After all, they all make a lot of tools, and they can be said to be perfect for the skills of craftsmen. So don't look at it as a tenth of a millimeter, but they can definitely do it. Chen Fei would not doubt this. At that time, the master Liu I met in the left prison guard was also a very capable person, who was able to bring his craftsman skills to the level of seventh and eighth level workers in later generations, and he could do several types of work, which was a real skill.

The reason why ancient times were not so sophisticated is because ancient times did not need such sophisticated things. Later generations of weapons were advanced, so naturally more precise units were needed to calculate. And in ancient times, it was a bow and crossbow, and there was no need for such a precise unit, so they were also very careless.

"Chen Langzhong, you actually want to get the accuracy of silk meters?" Immediately a craftsman exclaimed.

Chen Fei's precise requirements for silk rice are really difficult for those craftsmen. And Chen Fei will have to formulate the accuracy of various weapons in the future, especially the accuracy of the pulley crossbow, which must be done well. Because these precisions are related to whether the pulley crossbow can be spliced, if it can't be spliced together, isn't it a waste? And if the error of each part is too large, the dozen parts are added together, which is probably a very huge error. Therefore, Chen Fei had to make the accuracy to the level of silk meters, so that the error of the entire crossbow machine would not exceed one millimeter, which was still acceptable.

"You have to believe in yourselves, if you can't do this, then how can you live by the craft of craftsmen?" Chen Fei asked.

Chen Fei thinks that these ancient people can do it, and in later generations, many workers were not able to improve the means of mechanics to nanometer capabilities? Later generations were able to do it, and the ancients should be able to do it too. Of course, because there are various machine tools in later generations, it may be easier to do. However, although there were no various machine tools and not too much equipment in ancient times, there was absolutely no problem for these craftsmen to reach the level of silk rice. If they can't even do silk rice, then I'm afraid Chen Fei might as well spend money to hire some craftsmen!

Whether they can do it depends on whether they are persecuted. In addition, in ancient times, there were no such accurate means of measurement, so that they were not stressed. If there is no pressure, there is no motivation, and Chen Fei also wants to put pressure on them. Moreover, Chen Fei also invented the vernier caliper, so that the accuracy can be measured, which is not a problem at all. So the next step is to make them able to make parts that are precise enough, and finally they can be made according to a uniform standard, and they can be put together at any time. (To be continued......)