Yang Yan brought a futon for Luoluo to sit on, but not just for her to sit on. This futon, similar to Sun Wukong going out to make a fate, with a golden hoop stick to Tang Seng to draw a circle on the ground is almost the same, if Luoluo obediently sits on the futon, it is very safe, don't worry about the damage of demons and monsters (Dad's tools)!

Of course, Tang Seng is such an honest and responsible monk who will not sit in the golden circle peacefully, and he will be coaxed out by Zhu Bajie every time, let alone be lively and active!

After sitting on the futon for a few minutes, the little girl could not sit still, and she lifted her little buttocks a little to test it.

However, Yang Yan paid a little attention to his daughter's movements, and Luoluo moved, and he immediately turned his head, with a gentle smile in his eyes, and looked at Luoluo.

"Hee-hee, hee-hee!" Luoluo was like a child who was about to do something bad and was discovered by his father, his little hand retracted and hid behind his body, and then his eyes narrowed, and he laughed embarrassedly with his father.

"Sit down! Don't touch these tools, it's very dangerous!" Yang Yan said with a funny admonition, before turning his head back and continuing to remove the screws of the wheel part of "Chuanchuan".

Luoluo was "caught" by his father once, and he was finally able to sit peacefully for a longer time. She was still staring at her father, and finally waited for his father to put down the "buzzing" thing.

"Hmm, Baba!" Luoluo's voice was crisp, and she called her father, and when her father turned his head to look at her, she happily raised her playful little eyebrows, smiled sweetly with her father, and asked, "Jie, is it Shen?"

"This is an electric screwdriver!" Yang Yan looked at Luoluo's line of sight, he didn't show impatience, but picked up the electric screwdriver and introduced it to the little girl in a soft voice, "Dad can use this thing to unscrew those screws." Because it's electric, it's still very convenient to use, and it's more labor-saving!"

After receiving her father's reply, Luoluo's restless heart calmed down a little, she sat there, tilted her little head cutely, and continued to ask in a soft voice: "Baba, what is Baba?"

"Dad is repairing 'Chuanchuan', and he has to open its shell before he can do anything else. Yang Yan said with a smile.

"Sauce, ......" Luoluo didn't know if she understood, but she seemed to understand, and nodded in understanding.

Yang Yan glanced at Luoluo, and still put the electronic screwdriver he picked up back into his toolbox. Although it will be useful later, there is no hidden switch for this thing, and if it is placed on the ground casually, Yang Yan is still worried that Luoluo will catch it and play with it.

Put it in the toolbox, take it later, it's okay to spend a little effort, safety first!

In the past, the body of "Chuanchuan" was modified by toy cars, but this time, Yang Yan bought more professional tires and transmission systems from the Internet - these are specially customized for those DIY enthusiasts, and Yang Yan looked for a long time to find such a special toy car modification shop.

After disassembling the previous wheels and suspension system, Yang Yancai took out the newly bought wheels and its complex suspension and transmission accessories from the open express box.

The new wheel is very interesting, it has a rough pattern on it, and the gap between the textures is also very large, and the fingers touch it, and it feels like a prickly hand!

Of course, what's more fun is that it has a separate bearing for each wheel! Needless to say, Yang Yan also deliberately changed his core code to correspond to its differential control requirements, but Yang Yan now holds the wheel in his hand, and plays with the function that its wheel can twist alone!

Luoluo was surprised to see that Dad was holding a pair of wheels in his hands, and he was able to twist one of the wheels around like pressing a switch!

Luoluo didn't understand the mystery of this, but the asymmetrical movement of the two wheels could still make her feel some wonderful incongruity!

"Hmm, Jie, is Jie, is it Shen?" asked if he didn't understand, and the immature cry sounded again.

Yang Yan turned his head and saw the little girl's eyes full of curiosity, he still patiently and seriously explained: "This is the wheel of the car! However, our wheel is amazing, it is an off-road tire that can run many kinds of extreme terrain, and then it is driven by the shaft, which is different from ordinary all-terrain vehicles, and the performance is very powerful!"

"Shouting, shouting, it's very annoying?" Luo Luo looked at his father unconsciously, and exclaimed.

She didn't know what it was so powerful, but her father said it was amazing, and she thought it was amazing!

I have to say that although Luoluo sometimes affects the progress of refitting this toy car, listening to her sigh and looking at her little eyes with some admiration, Yang Yan is still very happy in her heart.

I feel that this technology is more motivated!

Yang Yan simply assembled the new wheels of "Chuanchuan", and explained to his daughter endlessly: "Luoluo, this car that Dad made today is very particular, not only using the technology on this all-terrain vehicle, but also specially looking for someone to design this electromagnetic power system, which can be said to be black technology!"

It is indeed black technology, electromagnetic power can improve the passability of the car to complex terrain, there is no such configuration in real car technology, but in the toy car, model car industry, any whimsical ideas can be used as you like, anyway, it is a toy car, do not sit on people, casually abuse!

Luoluo didn't understand what her father was talking about, she opened her little mouth blankly, looking at her father intently, like a good student who listened carefully!

It took a lot of time to modify, after all, Yang Yan is not a veteran of car modification, he fiddled with the idea diagram on his computer for more than two hours before the four wheels of "Chuanchuan", as well as the new four-wheel drive, suspension and other systems installed, by the way, he also replaced the new lithium battery pack for "Chuanchuan", so that its battery life can keep up with the new system requirements.

After the modification, Yang Yan first packed up all his tools and placed the toolbox on the table to prevent them from falling into them when he was not paying attention.

"Okay! Let's test drive!" Yang Yan smiled, took out the new remote control, and compared it with Luoluo.

"Is it okay?" After falling behind, he raised his little head and looked at his father in surprise.

"Yes, however, Luoluo has to stand on the sofa, Dad wants to test the car, I don't know if I can control it well, I'm afraid of hitting your feet!" Yang Yan said with a smile.

"Hmm, Luoluo, Luoluo wants to play...... the little girl was anxious, probably thinking that her father didn't want to participate by herself, she snorted and jumped beside her father, "Baba, Luoluo plays, plays, okay?"

"Dad doesn't let you play!" Yang Yan couldn't laugh or cry, "That's it, Dad will sit on the sofa with you, let's try the car together and see how it will be modified, okay?"

After the modification, the speed of the modified "Chuanchuan" has not changed much in theory, and it will not be too fast, and Yang Yan is also worried that it will break furniture and hurt children.

But it hasn't been tested yet, so I don't know how the handling performance is, and Yang Yan is also worried that he commanded it to drive forward, but it drove back uncontrollably.

No matter how slow the car is, it hurts to hit your toes when you are caught off guard!

"...... with Baba" Luoluo was satisfied this time, she happily climbed up the sofa along the small bench, and then slammed into her father's side, and laughed with her father.