To be honest, after receiving Rebecca's revelation, Gwen realized that this little "repulsive trick" was the biggest surprise the world had given him: simple, low-energy, stable, and effective.
Anyone who had been in contact with magic gears would be familiar with this basic magic. Whether it was a magic door that opened automatically or something else, as long as there was a structure in the mechanism that needed to be pushed, there must be a "repulsive trick". But how much power could it output? As a spell, its power depended entirely on how much magic power the caster could provide and the properties of the magic-conducting material itself. In Gawain's opinion, the conversion efficiency of the spell was extremely high. The door of the treasure vault in the mountain was made of heavy purple steel. A single door weighed several tons, and the ancient mechanism that controlled the opening and closing of the door could operate easily under the premise of almost no mechanical optimization. Of course, this was because the ancient Gondor Empire had black magic technology. Their purified magic-conducting crystals were extremely powerful. But the 'inferior products' of this era were not bad either. It was not too rare to see a magic trap that could push boulders all over the ground.
And all these magic gears used the repulsive magic array rather primitive and clumsy. They used the repulsive magic array to push the boulder forward in the spirit of creating miracles with great force. They almost never considered using things like levers and gears for optimization.
Therefore, Gawain had high expectations for the Magic Engine. He believed that even if he made the engine with cheap materials, the power it could provide would be unimaginable.
After the "piston version" of the magical engine was discussed, without waiting for Rebecca and Heti to complete the modifications and details of the blueprint, Hao Ren thought of further using the repulsive magic array to expand the structure similar to an electric motor.
A motor composed of a stator and a rotor naturally had additional advantages. Its structure was relatively simple, and its failure rate was greatly reduced. When it was started, the repulsive points on the rotor could directly operate at full load, and its starting torque was high, unlike the piston engine which lacked starting torque and needed to increase the speed of the rotation to reach the maximum torque. Its volume could be compressed to a very small size, and when it was powered by the Magic Net, it had a higher volume efficiency ratio. Thanks to the uniqueness of magic technology, the "rotor-type magical engine" did not need a brush or a "toggle device" to frequently switch the runic trigger. This reduced the failure rate while also increasing the overall lifespan of the machine (because there were few parts to be worn out). It was quite cost-effective …
But it also had a very obvious shortcoming. Ignoring the advantages and disadvantages of the electric motor compared to the internal combustion engine on Earth, the rotor-type magical engine in Gwen's mind needed a large number of "repulsive points" to be distributed throughout the shell to ensure the balance and continuity of the energizing process. When so many independent magic arrays were placed together, it had to ensure that they did not interfere with each other, that the output was accurate, and that the distance between them and the rotor was accurate, and so on. In this way, the technical difficulty of the engine's mechanical structure was reduced, but it increased the difficulty of drawing magic arrays. And the latter … required technical talents that were more difficult to cultivate. It was more complicated in this aspect, and it caused more trouble than the mechanical aspect.
But in any case, the idea was particularly tempting, and Gwen could not give it up.
So he took a blank paper from the side and quickly sketched a sketch under the curious gaze of Amber, Rebecca, and Heti.
A ring-shaped shell, an internal rotor with many inclined blades (objects of repulsion), and many symmetrically distributed repulsive magic arrays on the shell …
Its structure was so simple.
"This is …" Heti raised her eyebrows and asked curiously but hesitantly.
Gwen put down the pen and said with a little excitement, "The second-generation machine."
Apart from him, the other three people present were dumbfounded. After a while, Amber looked at Gawain as if he was looking at a monster. "What the hell is wrong with your brain?"
"Don't insult my ancestors!" Rebecca was angry when she heard this. She picked up her wand and hit Amber on the head. But then she turned her head and asked, "Ancestor, what's wrong with your brain?"
Gwen was speechless.
It was not until two seconds later that Rebecca came to her senses. She quickly put away her wand and apologized. "I'm sorry, ancestor. I didn't think before I spoke …"
"No, that's not the problem." The half-elf lady, who had survived the crisis of the iron wand, was still not content. She stared and continued to exclaim. "We haven't even finished discussing your first-generation blueprint, and you've already made a second-generation one? And no matter the principle or the structure, it doesn't look like it's from the same mother … You must have a lot of sketches in your head waiting for a long time, right? "
Gawain almost choked on a mouthful of saliva. Did this guy just make a lucky guess?
"It's just an immature idea." He quickly restrained his expression and looked at Heti, who was more meticulous. "Its principle is very simple. What do you think of its feasibility?"
"It's a lot simpler. The theoretical feasibility is very high … but it's probably not easy to do in practice." Heti saw the problem at a glance, and her answer was exactly the same as Gwen's idea. "A large number of repulsive magic circles arranged together, and in such a symmetrical and compact arrangement, it's almost as if they were specially prepared for magic resonance. They will interfere with each other, and whether they can move after activation is a problem."
"What if the diameter is larger, so that the distance between each 'repulsive point' is also larger?"
"... The feasibility is still not high. I can see what you mean. These repulsive points must be continuously 'relayed' to maximize the efficiency of the rotation in the middle, so their distance is limited. Instead of saying that the distance is longer, it's better to find a way to add anti-magic structures between the magic circles to shield them from interference. But this way … I'm afraid the cost is terrible."
Gwen's mouth immediately twitched. Anti-magic materials, even the cheapest ones, were precious metals in the magic-conducting materials. If they were to be used in a mass-produced machine, even if he died on the spot and was buried, Rebecca and Heti would collect tickets for the whole country to visit, he would not be able to afford it … What kind of a freaking analogy was that?
"Then let's do a prototype research when we have the spare energy. It's also the accumulation of technology." Gwen sighed. "First of all, let's get the prototype of the piston engine done. Most of the parts should be hand-made by Hamel and his apprentices. The more difficult parts and the repulsive mechanism should be handed over to the new rune craftsmen. Remember, don't worry about the cost of the first machine. As long as it can run safely and stably, we will succeed. And it's not a problem to sacrifice some performance on this basis."
Heti and Rebecca left with a pile of blueprints. Considering the administrative pressure on the former, Gwen gave the main task of manufacturing the prototype of the magic engine to Rebecca, while Heti only provided some technical support. This once again made Rebecca very happy.
After the two of them left the tent, Gwen gathered the rest of the blueprints and handed them to Betty, who was squatting on the ground and practicing writing with a twig. "Put them away. By the way, I've asked the carpenter to make a small desk for you. It will be sent to your tent in the evening. By the way, there's also a set of stationery and some white paper. Use it sparingly. "
Betty took the sheepskin pouch with the blueprints in it and froze for a moment. Then she showed a very happy expression and bowed so hard that she almost threw herself forward. "Thank you, Master! You are so kind! "
The little maid practically skipped and ran away.
Gwen looked at the little maid's back with a smile. He could not help but laugh and shake his head. Amber, who was beside him, had a strange look in her eyes. "I'm curious. You are so busy all the time, and you still have time to take care of this silly girl … Is this your real hobby? Eh — it's popular for guys like you to hit your own maids … Ouch ouch ouch ouch! "
Gawain pinched Hu Po's ear with all his might and snapped, "What kind of fetish is that? I just like that kid's diligence and motivation. Can't you be a little cleaner in your mind?"
Amber rubbed her ear and looked at Gwen angrily. "Don't you always say that my mind is clean?"
Gawain: "… I'm saying that your mind is blank, ignorant, and incompetent!"
"Huh? So you're not praising me?! "
Gawain glanced at the embarrassing half-elf and walked towards the entrance of the tent.
Amber could not hold back her curiosity and followed him. "What are you going to do? Are you going to eat something delicious secretly? Bring me along! "
Gwen waited for Amber to catch up before he said casually, "I'm going to have a heart-to-heart talk with that big metal ball. It has been lying in the tent for so long, it should be willing to talk to me."
When Amber heard that, she immediately lost interest. "Oh, then I won't go …"
Gwen scooped her up and clamped her under his arm, ready to take her away.
But this time he failed. Amber, who had been tormented once, had already escaped into the shadows the moment she was caught. Gwen felt that his hand was empty, and the half-elf thief was already more than ten meters away.
"You go have a heart-to-heart talk with the ball ~" Amber stood in the distance with a smug look on her face. "I'm going to find Betty for a meal ~ ~"
Gwen did not know whether to laugh or cry as he looked at this self-centered "bodyguard". He waved his hand and turned to leave.
In front of the special tent in the south of the camp, Gwen asked the guard about the metal ball. "Is there any movement from that thing in the tent?"
"Nothing." The dutiful soldier straightened his body and replied. "We have been guarding here, and that ancient magical device has stayed in the tent without any intention of going out."
Ancient magical device. This was the explanation Gwen gave to the soldiers who saw the metal ball. Now, it seemed that this explanation was accepted by them.
Gwen casually gave a few words of encouragement to the soldiers on guard duty before he stepped into the tent.
The metal ball was floating in the middle of the tent, about half a meter above the ground. It looked like a floating device that was out of science fiction.
But this sci-fi looking ball opened its mouth and said, "Oh my god, I thought you left me here and forgot about me! There are a bunch of dumb soldiers standing guard around. Either that annoying little old man came in, or that female human who likes to wear a red dress came in. It's so boring. Let me tell you, if it wasn't for my promise, I would have left early this morning … "
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