"I never expected that the first thing I did when I got home was to repair the milling machine."
Squatting in the backyard workshop, 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, hot air was blowing out.
On the contrary, the neighbor uncle who heard the news and came to watch the fun didn't mind the heat at all and asked curious questions.
As a guy who eats at home, I already had someone look at the milling machine after it broke down. They said it was a problem with the motherboard. To replace the motherboard, I had to return it to the factory.
"Dad, you should call me when the weather is cooler. I'll just hitch a ride back."
"Boss Ye, listen, I told you to call Ming Wa'er at that time, but you didn't believe it." Uncle Zhu, the neighbor, laughed and squatted aside: "Ming Wa's moves look like they were practiced in school.
From now on, if nothing else, just repairing machine tools will be a high salary."
"Just listen to him!" Ye Qigang also squatted next to his son, picked up the screws and clicked: "Are there few screws?"
"I guess the person who repaired it for you last time removed one. I'll just replace it later. Dad, did the repairman really say that the motherboard is broken?" Ye Ming had already taken off the PLC motherboard and was holding it in his hand to examine it.
.
"Um."
"Then I'll take it into the house and test it."
Ye Ming stood up as he spoke, picked up the motherboard and walked towards the "office" at the entrance to the backyard.
Although the word "office" is written on the door, it doesn't look like an office at all. To be more precise, this is Boss Ye's workroom.
Ye Ming's robotic arm was born here.
The workshop is very small, with all kinds of tools hanging on the wall, including a long strip of screwdrivers and wrenches, and various materials and scraps piled in the corners.
The workbench was in a mess, and when I touched it with my hand, there was still dust on it.
Ye Ming wiped it with his hands and asked with a smile: "Dad, how long has it been since you went to work?"
Before his father could answer, Uncle Zhu from next door said first, "What kind of job do you work in? Business is not going well right now."
Ye Ming was startled when he heard this, and turned to look at his father: "Is business not good?"
The father smiled and said: "How can we have business if the machine is broken?"
Ye Ming frowned slightly: "It's just that the milling machine is broken. It can't be that I can't do any work..."
Uncle Zhu said again: "If we don't make any money anymore, we might as well make money by delivering food."
Ye Ming was suddenly surprised and looked at his father carefully: "Dad, you don't want to deliver takeaways, do you?"
My father suddenly became a little unhappy: "Isn't it enough that I can't be your dad if I deliver food?"
"...No, it's so hot, and it's all young guys who deliver..."
"So I came back to rest." His father touched Ye Ming: "Xiu you, how can you talk so much."
…
After learning that his father, an old lathe worker, had gone to deliver food, Ye Ming felt a little uncomfortable.
With his father's craftsmanship... it would definitely be better for him to work anywhere than to be outside in the wind and sun.
Obviously, this is not just a milling machine problem.
Something is definitely wrong.
After a moment of silence, Ye Ming took out the sensor from his pocket and put it directly into his ear without explaining it 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 bitmap."
"Wait a minute... found it."
"show me."
While Ye Ming was looking at the motherboard, Eta also found the drawings through the Internet, and then she began to generate pictures in Ye Ming's mind.
Making do with the screen, Ye Ming picked up the multimeter and started testing the points.
At this time, Etta's voice sounded independently.
"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 it? And can you use it better than a multimeter?"
Ita wasn't angry at all, at least he didn't sound angry.
"I'm more sensitive than a multimeter."
…
Although Ye Qigang is a good turner, due to his cultural level... his circuit skills are really limited to repairing a plug-in fan, etc. Once it comes to circuits such as motherboards, he knows nothing about them.
Therefore, when he saw Ye Ming put down the motherboard and said he wanted to get himself a tool, he lost interest in observing and went to prepare dinner for his son.
On the contrary, Uncle Zhu next door watched with interest until his wife called him twice and asked him to go home.
Without any interference, Ye Ming began to seriously design a plan to use Eta as a "multimeter".
According to Ita's description, the reason why she is "sensitive" is that she can feel the smallest changes in current and voltage - if Ye Ming is brave enough and can do invasive brain-computer level, then she can even feel
Changes to the single electron level.
Such sensitivity... is indeed enough to make Ye Ming jealous.
But it’s easy to say, but easy to implement…
Also simple.
Ye Ming found the "scrapped" integrated electrode, then connected five wires with enameled wire, then connected the power supply part of the remaining Bluetooth headset, and then led out two pins, and you were done.
Just to be on the safe side, he added a resistor to the pin line.
After doing all this, it was exactly five-thirty, and my mother's voice calling for dinner also sounded at the same time.
"Okay mom, right now - I'll start from pin one?"
"good."
"Is something wrong?"
"Satisfied, 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 Eta's guidance.
To be honest...it's quite time consuming.
Because Ye Ming had already heard his mother's voice 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 what the motherboard's fault was, and said that these were minor problems and that he could just buy the corresponding model online instead of returning to the factory to replace the motherboard.
Because this machine was purchased second-hand by my father, there was no after-sales service from the manufacturer. Once there was a motherboard-level problem, the price offered by the repairman was extremely high.
After hearing his son say that he only needed to change a few keys to bring the machine back to life, his father was a bit more reserved, while his mother was quite overjoyed, thinking that her business would be open immediately.
But Ye Ming knew from the afternoon chat with his father, especially Uncle Zhu next door...
The machining business is not doing well, which is the current general environment.
Especially for small workshops like ours, if we are just holding on, we are losing money.
But in any case, these thousands are saved. Even if the machine needs to be disposed of, it will not be sold for scrap metal.
After dinner, Ye Ming went to the factory to clean up the parts before returning to the workshop.
He needed to have a good chat with Ita.
"Ita, do you think there is a possibility that you can realize an unmanned factory with cluster management?"
"This is not a possibility, this is a fact." Ita's voice was somewhat calm and matter-of-fact.