From black technology to super engineering

Chapter 74 Super Multimeter

"It never occurred to me that the first thing I did when I got home was to repair the milling machine."

Squatting in the factory building in the backyard, Ye Ming disassembled the HEIDENHAIN TNC155 CNC milling machine, and carefully placed the screws and parts in order.

My father brought an electric fan behind him, but in this weather, even if the fan was blowing, it was still blowing hot air.

On the contrary, the uncle neighbor who came to see the excitement after hearing the news was not too hot at all, and asked curiously.

As a guy who eats at home, I have had someone look at this milling machine after it broke down. They said it was a problem with the main board, and I had to return it to the factory to change the main board.

"Dad, you should find a cool day to call, and I'll be right back with a ride."

"Boss Ye, listen, you don't believe me when I told you to call Mingwa'er." Neighbor Uncle Zhu chuckled and squatted aside: "Mingwa practiced this move at school. In the future, if nothing else is said, just eating the job of repairing machine tools will be a high salary."

"Just listen to him!" Ye Qigang also squatted beside his son, picked up the screw and tapped it: "Missing a screw?"

"I guess the person who repaired it for you last time took one off, and it will be ready later. Dad, did the maintenance master really say that the main board is broken?" Ye Ming had already taken off the PLC main board at this time, and held it in his hand for a closer look. .

"Ah."

"Then I'll take it into the house and test it."

Ye Ming stood up, picked up the motherboard and walked to the "office" at the entrance of the backyard.

Although the word "office" was written on the door, it didn't look like an office at all. To be more precise, this was Boss Ye's workshop.

Ye Ming's robotic arm was born here.

The workshop is very small, with all kinds of tools hanging on the wall, there is a long row of screwdrivers and wrenches alone, and various materials and leftovers are piled up in the corners.

The workbench is messy, and when you touch it with your hands, there is still dust on it.

Ye Ming wiped his hands quickly, and asked with a smile, "Dad, how long have you been away from work?"

Here, before his father could answer, Uncle Zhu next door said first: "What work do you do? Business is not doing well right now."

Ye Ming was startled when he heard the words, and turned to look at his father: "Is the business not good?"

The father laughed and said, "How can there be business if the machine breaks down?"

Ye Ming frowned slightly: "It's just that the milling machine is broken, it can't be impossible to do anything..."

Uncle Zhu said again: "It's not making money anymore, it's better to make money by delivering food."

Ye Ming suddenly became surprised, and looked at his father carefully: "Dad, you don't know how to deliver food, do you?"

The father suddenly became a little unhappy: "You can't be your father if you deliver food?"

"...No, it's so hot, and they are all sent by young guys..."

"So I came back to rest because of the heat." The father touched Ye Ming: "Your repairer, how can there be so many words."

……

After learning that his father, an old car worker, ran to deliver food, Ye Ming really felt a little uncomfortable.

With his father's handicraft...it is definitely better for him to find a place to work than to be outside in the wind and sun.

Obviously, this is not just a problem with a milling machine.

Something must be wrong.

After a moment of silence, Ye Ming took out the sensor from his pocket and stuffed it directly into his ear without explaining to the two people around him.

"Ita, help me find the drawings of HEIDENHAIN TNC155 on the Internet."

"Wait a minute, I found it."

"PLC motherboard point map."

"Wait...I found it."

"let me see."

While Ye Ming was looking at the motherboard, Ita also found the drawings through the Internet, and then she began to generate pictures in Ye Ming's mind.

On the screen, Ye Ming picked up the multimeter and started testing the points.

At this time, Ita's voice sounded autonomously.

"Ye Ming."

"what's up?"

"If it's a test circuit, you can let me try it."

Hearing this, Ye Ming was a little surprised: "You can only feed back signals through electrodes...how to try? And you can do it better than a multimeter?"

Ita wasn't angry at all, at least not audibly angry.

"I'm smarter than a multimeter."

……

Although Ye Qigang is a good turner, but due to his educational level... his circuit is indeed limited to repairing a plug-in fan. Once it involves the circuit of the motherboard, he knows nothing.

Therefore, when he saw Ye Ming put down the motherboard and said he wanted to get a tool for himself, he lost interest in watching and went to prepare dinner for his son instead.

On the contrary, Uncle Zhu next door was watching with great interest until his wife called him twice to call him home.

Without interference, Ye Ming carefully designed a plan to use Ita as a "multimeter".

According to Ita's description, she is "sensitive" because she can feel the slightest changes in current and voltage—if Ye Ming is brave enough to do invasive brain-computer level, then she can even feel to the single-electron level change.

Such sensitivity...is indeed enough to make Ye Ming jealous.

But it's easier said than done...

Also simple.

Ye Ming found the "scrap" integrated electrode, and then connected five wires with enameled wires, then connected the power supply part of the remaining Bluetooth headset, and then led out two pins, and you're done.

Just to be on the safe side, he added a resistor to the pin line.

After doing all this, it was exactly [-]:[-], and the voice of my mother calling for dinner also sounded at the same time.

"Okay mom, right now—do I start with the first pin?"

"it is good."

"Is there something wrong?"

"Sure, continue."

As the two continued to communicate in their minds, Ye Ming also quickly tested the entire circuit diagram according to the point map and Ita's guidance.

Frankly speaking... it's still quite time consuming.

Because Ye Ming had already heard the sound of his mother walking outside the door.

"Fault found."

"where?"

"Two chip resistors failed, and one memory chip failed."

……

At the dinner table, Ye Ming told his father where the motherboard was faulty, and said that these were minor problems, and he could just buy the corresponding model online, instead of going back to the factory to replace the motherboard.

Because this machine is a second-hand product that my father bought at the beginning, there is no after-sales service from the manufacturer, and once there is a problem at the motherboard level, the price charged by the maintenance master is also extremely high.

Hearing from his son that he only needed to change a few keys to bring the machine back to life, the father was a little more reserved, while the mother was a little ecstatic, thinking that her business would be opened immediately.

But Ye Ming knew from the chat with his father in the afternoon, especially Uncle Zhu next door...

The machining business is not good, which is the current general environment.

Especially the small workshops at home, now they are struggling, that is, they are losing money.

But in any case, these few thousand dollars are saved, even if the machine is to be disposed of, it will not be sold as scrap iron.

After dinner, Ye Ming went to the factory to pack up the parts before returning to the workshop.

He needs to have a good chat with Ita.

"Ita, do you think there is a possibility that you can realize an unmanned factory with management clusters?"

"It's not possible, it's a fact." Ita's voice was somewhat calm and taken for granted.

(End of this chapter)