Because many of the workpiece gear systems installed by Duan Yun are inside the machine, and the wiring part of Duan Yun has just begun to be installed and connected, Cheng Changlin can not fully see all the design principles of Duan Yun's modification scheme.

"I made this circuit myself. Duan Yun replied.

"I'll see. Cheng Changlin said.

"Give. Hearing this, Duan Yun handed the circuit board in his hand to Cheng Changlin.

"It's kind of interesting. After seeing the circuit board handed over by Duan Yun, Cheng Changlin observed it carefully, and then asked, "Is this board really handmade by you?"

Cheng Changlin's strength is mechanical, the circuit only knows strong circuits, and he doesn't know much about weak radio circuits, only some simple diode and transistor circuits.

In Cheng Changlin's view, electronic technology is a very difficult technology to learn, and if you want to become a master who can independently make and design circuits, you need to have strong logic and originality.

For a period of time, Cheng Changlin also planned to teach himself electronic technology, but because he was middle-aged, his memory and thinking had decreased a lot compared to when he was young, so he finally had to give up.

"Hmm. Duan Yun nodded when he heard this, and then said: "I usually go to the factory to repair electrical appliances occasionally to make some money, and I rented a small room in the factory, and the circuit boards are etched and welded out in the rental house. ”

"Then the speaker you gave Qingyan before was really made by you by hand!?" Cheng Changlin suddenly remembered the two speakers that his daughter took home before.

Until now, Cheng Changlin still likes these two small speakers, and now every night when he goes home, he will sit leisurely on the sofa and listen to songs for a while.

Cheng Changlin also once opened the back cover of the speaker to see, and found that there was a complicated-looking circuit board inside, and the various wiring connections were very neat, more like something mass-produced in a factory, so he always thought that Duan Yun's circuit board was bought directly, not designed and made by himself.

But now Cheng Changlin suddenly discovered that the speaker may really be handmade by Duan Yun himself, which shows that Duan Yun not only has mechanical technology, but also seems to be an electronic master!

understands mechanics, knows English, and is also a master of electronic technology, which makes Cheng Changlin feel that Duan Yun is not simple!

"Well, that's what I did myself when I had nothing to do. Duan Yun responded.

"This ...... Where did you get the chip from?" At this time, Cheng Changlin asked in surprise after seeing the chip in the middle of Duan Yun's circuit board.

"I bought it from a stall at the Radio Amateur House in the fourth archway, and I have been buying it for a few months, and this modified gear hobbing machine is just right for use. Duan Yun said casually.

"Do you know how to use this chip?" asked Cheng Changlin.

"Understand a little bit ......," Duan Yun said modestly.

"If you know a little fur, you can use this chip to make a CNC gear hobbing machine?" asked Cheng Changlin suspiciously.

Cheng Changlin absolutely does not believe that Duan Yun's level can reach the level of using chips, with Cheng Changlin's understanding, foreign CNC machine tools do need chips, but China can't buy these chips, even if there are occasional domestic chips, low output and poor quality, and the price is amazing, there are not many talents in China who can design chip circuits, so to say that Duan Yun will design chip circuits, Cheng Changlin is absolutely unbelievable!

"I know a little bit about the function of this chip......"

"You dare to install it on the machine for testing without understanding this technology, what if there is an accident? You are too bold, right?" Cheng Changlin said loudly to Duan Yun with a frown.

Cheng Changlin didn't deliberately look for Duan Yun's stubble this time, but he did feel that Duan Yun was unreliable this time.

Engage in technical design, a half-understanding of the performance of components is absolutely not good, this technical transformation is easy to go wrong, and this time the use of valuable equipment in the factory, once an accident occurs, the consequences are very serious!

"It should be fine. Duan Yun said with a slight smile.

"With your high-tech attitude, sooner or later you will suffer a big loss!" Cheng Changlin put the circuit board on the tool cabinet, threw down a sentence, and turned his head away with a straight face.

In fact, Cheng Changlin came over today because he wanted to instruct Duan Yun twice, but seeing that Duan Yun's attitude towards modification was so perfunctory, and he didn't understand the technology of electronic chips, he could only leave.

Obviously, in Cheng Changlin's view, Duan Yun's technical transformation is very unreliable, as for his claim yesterday that he was going to modify it into a CNC gear hobbing machine, now it looks like a joke!

As for Duan Yun at this time, he didn't care what Cheng Changlin thought of him, after all, he was still very confident in this technical transformation plan.

Not long after Cheng Changlin left, Qin Gang, the factory director Qin Gang and Cheng Qingyan, as well as some technicians from the technical department, also came to the workshop.

"Xiao Duan, how is the modification of the machine?" Seeing Duan Yun kneeling under the machine and pouting his ass to install the line, Qin Gang asked with a smile.

"Ah, Director Qin is here. Hearing this, Duan Yun stood up from the ground and said to Qin Gang, "Now that the circuit is partially installed, it should be completed this afternoon." ”

"Good. Hearing this, Qin Gang nodded, then pulled Duan Yun aside, and asked Duan Yun in a low voice, "Can you guarantee the success of the experiment?"

"It's not going to be 100 percent successful, but I'm sure of it. Duan Yun said.

"Even if you fail, you must ensure the safety of personnel and equipment as much as possible, this is the only requirement I have for you!" Qin Gang Zhengse said.

Qin Gang and Zhao Dongsheng are obviously the same style of doing things, safety is always the first priority, even if there is no credit, if you don't make a mistake, you can say anything, besides, Duan Yun's technical change this time was approved by Qin Gang, and he will be mainly responsible for something happening!

As for how much Duan Yun's modification can improve production efficiency, it doesn't matter to Qin Gang, and he also met Cheng Changlin in the office building just now, and learned that Duan Yun's technical transformation may not be reliable, so he was worried about accidents, so he came to the workshop.

"I've installed a circuit protection system on the machine, and it shouldn't be fine. ”

"That's good!" Qin Gang's face relaxed when he heard this, and after a while, he asked, "Can you install it all before you get off work this afternoon?"

"Yes!" Duan Yun said very simply.

"Hmm. Qin Gang nodded, turned to Wang Qiang, the workshop director who followed him, and said, "Are there any new processing tasks in the workshop recently?"

"Recently, a new batch of gear processing orders, there are more than 300, the tooth embryo has been processed, it is almost milling machine processing, it is estimated that a few masters in the day shift of the workshop can finish processing ......in a week," Wang Qiang said.

"This batch of semi-finished products will be processed by Duan Yun's modified machine!" Qin Gang said.