"Really, you're telling the truth!" If there really is such a design...... Earhart got excited and grabbed Bello. If there is such a design, then the little uncle's plan is perfect.

"Yes! I'll give you a brief explanation of how it works! Do you know the tenon structure?" Bello was not so excited at the moment, he had no reason to be excited until the matter was decided.

Time is running out!

The world doesn't know if there is a mortise and tenon structure, and Earhart has never seen such a structure anyway. Bello simply told Earhart about the stress principle of the mortise and tenon structure, and then gestured to him to explain how to make it. Elhardt's eyes lit up as he listened, though he couldn't tell if the design was a success or not. He can still understand the basic tenon structure principle. Theoretically, there is nothing wrong with this design.

"Go, go, go, go home, come home with me!" Earhart jumped like a rabbit and pulled Bello, then beckoned a carriage and pushed Belo into the carriage.

The driver was a little unhappy when he saw the two teenagers stop the car, he had just changed the cushions in the car, and these teenagers did not know how to care.

"Go to Maple Street!" Earhart tossed the coachman a silver rabbit.

"Sit down!" the coachman never struggled with money. With a flick of the whip, the horse trotted all the way. The bell of the bridle "zero-zero" rings.

"This mat is so ugly!" Earhart looked at the new red mat in the car with disgust, and his mood was completely different, and he returned to his bear child nature. I picked up the mat and wiped it on my shoes, feeling that the leather shoes were shiny, and then threw the mat back.

"Come to my house, as long as your design is okay, you can make it in a while, and see the effect!" Earhart swaggered, making Bello feel like "how can I have such a friend".

The carriage was much faster than on foot, and it didn't take long for the two of them to feel the coachman slow down the carriage, and the carriage gradually stopped moving, and the shouts of the coachman outside came: "Guest!

Bello jumped out of the car with Earhart, and saw a shop in front of him, and from the shop, it was a structure similar to a blacksmith's shop, and further inside, he arrived at a small two-story building.

Al Hartra ran in with Bello, rushing directly into the little uncle's room on the first floor.

As soon as he entered the door, he was stunned, a group of elders were sitting in a circle, and in the middle of the front was his grandfather old Jeremi. These people were all full of frustration, and old Reremi's face was even more heavy and dripping.

Earhart's father couldn't help but look pale when he saw his son running in with someone. The family's major affairs have not been settled, but the son only knows how to run around, and he does not look like an heir at all. He said, "You're back, take your friends somewhere else!

"Dad, we have a way, Uncle's design problem has a solution!" Elhart replied excitedly.

"Alright, alright, you go out first!" Elhardt's father didn't listen to him at all, but waved his hand out as a child who liked to behave.

"Ahem!"

A cough sounded, and Earhart's father turned his face to see old Reremi looking at his grandson with a smile: "Good grandson, what can you do?"

"Wedges! with wedge-shaped nuts!" Elhardt ran to old Reremi as if offering a treasure, and after listening to Bello's "tenon" structure, he understood it according to his own meaning, and became a nut in the form of a "wedge", "Grandpa, as long as the nut is in the form of a wedge, it will not loosen." ”

"Okay, good, good, good, good grandson, just do what you want! Go! The first furnace is given to you, and you can make it! Show me!" Old Reremy didn't listen to what Erhart said, and just praised it. After the old man finished praising him, he said with a cold face to the sons in front of him: "Look! Look! You have to have half the heart of my grandson, and you still need my old man to come forward in this matter?"

It can be seen that the old man really likes his grandson, but he really doesn't want his grandson to help. Since I was a child, I saw my eldest grandson, and I knew what shit to poop when I pouted my buttocks, and old Reremy definitely knew the roots of his grandson!

Dote is doting, and you can't let your grandson affect your business. Since he likes to toss, give him a stove to toss, and when he encounters a setback halfway, he can comfort and comfort him when the time comes. Old Reremi, a round-faced old man, carried it very clearly, and his means were also very slippery.

Erhar's personality is relatively secondary, and his IQ is not low. As soon as I saw my grandfather's posture, I knew that I was underestimated again. He thought about the facilities of his No. 1 furnace and made a decision secretly. Since my father and grandfather were not optimistic, I made things first. When the things are made, bring them to them, and these people should have nothing to say.

"Thanks, grandpa, then I'll go to the first furnace!" Elhart ran out with Bello in a hurry.

Old Reremi watched his eldest grandson leave with a smile on his lips. His eyes swept over the people present, and said in a deep voice: "This audit, we can't pass it, and we won't be qualified to use the stove fire in the future! How can we get by! Change people to participate in the trial, or continue to think of a way, we can't come up with an idea today, let's just wait for death!"

Belo was carried by El Hatra to the first furnace. He was amazed that there were no blast furnaces, no chimneys, no modern infrastructure for metal production. Don't the makers need to smelt the metal, they don't need to pour the fittings?

No. 1 furnace, listening to the name, is a furnace. In fact, it includes a variety of accessories, including stoves. These things are all concentrated in a room that resembles a small blacksmith's shop.

Pulling Belo into the house, Earhart closed the door, snorted angrily, picked up a hammer and waved it a few times, and said: "These people look down on me, think I'm still a child! Bello, let's make the screws ourselves! Let's see if they dare to underestimate people!" Swinging the hammer is about to do a big job.

Bello looked at Earhart, and looked at Erha with an expression.

"What's wrong?" said Elhart, still wielding his hammer to vent his frustration.

"What is the diameter of the screw, what size, what is the length, what is the appropriate thread density, what is the maximum force to bear, what material is needed to make it?...... Do you know a series of things?" Bello explained most of the technical specifications for making screws in one breath, and then looked at Earhart.

"I'll go and ask my uncle!" Earhart turned to run, but Bello grabbed him.

"Remember to take the set of screws and nuts directly!" According to his thinking, the screws do not need to be changed at all, and the nuts can be replaced directly, and the key to this set of "eccentric interference self-locking stacking nuts" lies in the design of the nut rather than the screw.

Start by making a recessed nut with a normal round center, then an eccentric convex nut. When the screw has a tendency to fall off, the eccentric convex nut will tighten the concave nut like a wedge, and the bite effect will be dead. Compared with other self-locking methods, this design is relatively simple and easy to make. If you want to be perfect, you need to have a deep accumulation of materials, sizes, and eccentricities. Bello doesn't need the perfect size right now, and these things can be disregarded for a while. As long as the sample is done, I believe that someone will continue to improve and study this thing in depth.

Earhart ran out again, and Belo surveyed the room. The floor space of the house is not small. In the middle is a large cylinder made of unknown shape, which looks like a stove. The inside and outside of the furnace were all blackened, more than one person high, cylindrical, the diameter of several people hugging. There is a small chimney attached to it. The front of the stove is a one-foot-square curved door, and the arc of this door is the same as the arc of the stove, like a piece cut from the stove.

The door is closed, and it is not clear what the inside of the furnace is. Anyway, there was no fire, and Bello couldn't feel the heat. Near the stove is an anvil that hits the height of the lower abdomen of the person. Next to it were tongs of different sizes, hammers, and a large vat with a black liquid that I don't know what kind of liquid it was.

In the position of the furnace back, there are different kinds of molds. Clay fan, pottery fan, iron fan, etc., molds of various materials. Large and small, there are common and uncommon looks, and they are put together in a mess.

Outside the stove was a large square table, with a thick sheet of metal on it, on which were thrown a mess of tools, vices, pliers, hammers, steel files, etc., all greasy and black, and looked very dirty. It seems that this large table is the original version of the "lathe".

Fabricator?

Isn't it the equivalent of a blacksmith?, Bello thought suspiciously.

Bello was thinking when the door slammed open, and Earhart rushed into the room with a small wooden blackboard and a bag. As soon as I entered the house, I couldn't wait to shout loudly: "Bring it, bring it! Bring it all!"

Bello took the bag and saw that it was a pile of tools.

They are all tools needed to make nuts by hand. The rulers are: vernier caliper, ruler, height vernier ruler, knife edge ruler, and a 120-degree angle template in the middle. The rest of the things include all kinds of punches, scribing needles, files, hand hammers, brushes, twist bits with a diameter of 8.5, and ready-made vises on the table, drilling machines, scribing plates, etc., plus more than enough to make a hexagonal nut.

Written on the blackboard are the specifications for nuts.

Looking at these tools, Bello corrected the image of the crafter in his mind, from a blacksmith to a blacksmith and a fitter.

After taking the blackboard, the way the specifications are recorded is very different from the way Bello knows, but the basic specifications are the same, and there are only a few things, which are easy to understand.

"Bello, what the hell do you do, you say, I'll do it!" Elhart wiped the sweat from his face and laid the contents of the bag on the square table in the same way.