Yang Cong took a lot of effort to draw this drawing, and he didn't know how many kinds of pens he had tried just for drawing drawings.

He has tried any wolf's hair, purple hair, pig bristle pen, mouse whisker pen and other brushes, but none of them are suitable.

Even he tried this to make a chicken quill, duck quill, etc., but it was not suitable.

In the end, he used a sharpened charcoal rod, and the lines drawn by this charcoal pen were relatively neat, that is, the grinding pen could annoy people to death, and he would grind after a few strokes, and he would grind after a few strokes, and he was about to spurt blood when he grinded.

However, the effect of the drawing is quite good, basically similar to the mechanical drawings drawn with pencil in later generations, quite clear and intuitive.

This time he didn't try to make a flintlock pistol, mainly because he was too late, he didn't know how long it would take to find flint and flint mines, and the structure of the flintlock pistol was also very complicated, and he didn't know how many times he had to try to succeed without a reference, so he drew an arquebus.

However, the difference between his arquebus and the existing arquebus, the existing arquebus is a closed tube at the back end, and then drill a small hole to plug the arquebus, it's as simple as that, and the gun he drew is with a bolt, and it is with a bullet, the bullet still comes with its own arquebus, as long as the pre-packaged bullet is put in the bolt and pushed forward, you can ignite and shoot.

The structure of this arquebus is actually not very complicated, that is, there is an extra bolt, and then the barrel is divided into two sections, and the barrel that houses the bolt in the back is much thicker than the barrel in front.

After understanding, he couldn't help but look up at Yang Cong with respect.

This champion is really a genius, he can come up with this kind of musket.

Yang Cong looked at Wang Xuan's respectful eyes, and couldn't help but feel proud in his heart, although he borrowed the structure of the rifle of the later generations, but the parts were basically all thought up by him, because there was no such simple rifle in the later generations.

He secretly smug himself for a while, and then coughed, "How is it, sir, this musket is good, isn't it?" ”

Wang Xuan nodded again and again and said: "My lord is really a genius, his attainments in muskets are so deep, this kind of musket saves the time of loading ammunition, and it is many times faster than the existing muskets." ”

Yang Cong couldn't help but ask, "Then do you think this gun is easy to make?" ”

He personally thinks that this kind of gun is very easy to make, because the structure of the second half is not complicated, and the place where the bolt and the barrel fit needs to be finely processed, and it doesn't matter if other places, just process it, as long as it is not too ugly.

Unexpectedly, Wang Xuan shook his head and said: "We can make this kind of gun now, but it takes a lot of time, I'm afraid we can't make a few in a day." ”

Yes!

Yang Cong couldn't help but be surprised: "Why, is it because there are not enough skilled craftsmen?" ”

Wang Xuan shook his head, pointed to the drawings and said: "It's not that there are not enough skilled craftsmen, the main thing is that this place is too difficult to process, the bolt you painted must be tightly fitted with the barrel at the back, and the bullet and the bolt must also be tightly fitted, otherwise there will be air leakage, and if you want to fit tightly, you must grind it repeatedly, and it will take the bullet, barrel and bolt to constantly test, which is very laborious." ”

When Yang Cong heard this, he understood a little that the processing equipment at this time was manual, whether it was drilling or processing the outer circle, it was slowly ground out by hand, not to mention the difficulty of processing, and the speed was very slow.

It is definitely not possible to make a few guns a day, but he patted his chest with Jiajing and promised that he would be able to equip all the elites of the 60,000 border armies in five years at most, if he could only make a few muskets a day, he could make two or three thousand at most a year, and it would take at least more than 20 years to equip the elites of the 60,000 border armies, not including artillery, Jiajing would definitely not have the patience, and he would not be able to wait that long.

He thought about it, and asked Shen Lian to bring charcoal and scratch paper, and then drew on the manuscript paper.

He drew two simple gears, one is a large gear with hundreds of teeth, and the other is a small gear with more than a dozen teeth, the two gears bite together, if you use human hands to rotate the large gear, the speed of the small gear will reach about ten times the speed of the manual rotation, so that the processing speed is increased by nearly ten times.

To be honest, this thing is not very good, if he has enough time, he can even design a simple steam machine, but this is not because there is not enough time, he can only design a simple manual machine first.

Although the gear drawings are extremely rough, Wang Xuan can understand it at a glance, because there was such a thing as gears in the pre-Qin period, and it is said that there are many gears in the wooden ox and flowing horse made by Zhuge Liang, but no one seems to have tried to use the gears to accelerate.

He was puzzled, "My lord, what do you mean by drawing two gears?" ”

Yang Cong patted his forehead and explained: "Sir, what do you think, there are more than 100 teeth here, and there are only more than 10 teeth here, if you turn this big gear by hand, will this small gear turn about ten times faster than the big gear?" ”

It turned out to be this meaning, Wang Xuan couldn't help but give a thumbs up and said: "My lord, you are really a genius, you can come up with this thing." ”

Yang Cong couldn't help but feel proud for a while, and then said modestly: "It's nothing, it's nothing, sir, you see, if you fix the bolt on this, or fix the drill bit on this pinion shaft, can it be processed about ten times faster?" ”

Wang Xuan thought about it carefully, then shook his head and said: "No, although the speed can be a little faster, it is still not much faster, because if you grind and grind, you have to remove things and try them, otherwise once the processing is overdone, wouldn't it be in vain?" ”

"Poof"

When Yang Cong heard this, he couldn't hang a mouthful of blood spurting out.

It's not easy to make something these days, because many tools are not available in later generations.

Wang Xuan said that he understood, because when processing the barrel and bolt, the parts must be fixed with fixtures all around, so it is not easy to hold the parts that match it, and it must be removed to compare, and later generations use accurate measuring tools, such as vernier calipers, outer diameter micrometers or something, the problem is that there are no such precision measuring tools in these years.

Yang Cong thought for a while, and finally remembered, it seems that Wang Mang of the Western Han Dynasty once designed a simple vernier caliper, which is estimated to be used to measure the inner circle and the outer circle.

He didn't care if people in this year had heard of that thing, so he immediately drew a sketch of a vernier caliper, which of course could not make such a precise vernier caliper in later generations, but as long as one or two scales were fixed, the size of the outer circle and the inner circle of the card was still no problem.

Wang Xuan stared at the sketch drawn by Yang Cong for a while, and couldn't help but be curious: "My lord, what is this." ”

Yang Cong patiently explained: "This is a caliper, the long end is the outer circle of the measuring gun bolt, and the short end is the inner circle of the measuring gun barrel. ”

Wang Xuan pondered for a while, and couldn't help but look at Yang Cong with a shocked face.

This guy deserves to be the champion, he can come up with such a magical thing!

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