Wizard: I brought the wrong system

First make the 'Huo Ma Steel' into a pipe shape, which can not only save materials, but also increase the hardness of the metal and prevent the metal from deforming during the flight.

While Yarrow was busy, little Holly also came over.

Both saltpeter and sulfur cannot see fire. No matter how anxious she is, it is impossible for little Heli to light up the lamps and let the servants continue to work in the dark.

Glancing at the flames burning in the stove, Holly walked directly to the stepping blower box.

The large structure of the blower box is somewhat similar to that of a bicycle, and it is easy to pedal at the beginning.

"My lord, you have always said that those materials must be crushed. To what extent do you have to crush them to be qualified?"

The furnace with enough oxygen, the more intense the fire, and the 'Fire Ant Steel' placed in it also dissolves faster and faster.

Yarrow deftly introduced the bright red molten liquid into the rows of grooves made earlier, and casually replied:

"Of course, the finer the better, but before that, you need to dissolve and purify the white material several times."

Saltpeter is as soluble in water as table salt, so it can be purified by crystallization like table salt.

After all, saltpeter is called 'cryolite' among wizards. Even the most inferior cryolite inevitably contains some ice magic power. Only after many times of dissolution and crystallization can it be better cleaned.

"What about the sulfur, they don't dissolve in water."

"It's the same if it can't be dissolved. Sulfur can't be dissolved, so it can naturally take away other soluble impurities," Yarrow said, and opened the gate on the side. The cold water in the water tower continued to flow along the pipe, and poured into the ditch outside the mould. In the trough, bursts of hot mist continuously evaporated from it.

"Okay, I see," Holly said, sitting on the blower box, watching curiously as Yarrow began to work on the metal pipes with various spells.

It's like watching other people's electric welding, even though she has seen it many times, she never gets tired of it.

In fact, it is better to temper and quench the pipeline to adjust the atomic structure inside the metal to make the shape of the pipeline more stable. However, Yarrow didn't have so much time, so he just started making it.

The metal pipe is taken out of the mold, the position is measured, and then heated with hot melt until the pipe is soft, and it can be easily bent.

According to this method, the metal pipes are continuously adjusted and connected, and finally the general outline of the hang glider is woven-a large wing composed of two triangles, and a small hollow tail with a tail behind it.

There is also a vertical pole more than one meter long in the center of the wings, which extends below the wings to form a small platform.

This step is not complicated.

However, it is impossible to use only one material for the specially made luxury version of the hang glider. Especially for the first time, Yarrow has no idea, so some steel wires are needed for fixing.

……

[3:00-5:00: Maintain breathing method to nourish and repair the body, free time for activities (refining various interesting equipment)]

……

This was Yarrow's previous schedule. In the process of refining all kinds of interesting equipment, many supporting tools and some small objects were naturally refined.

This includes steel wire.

Yarrow's method of making steel wire is to heat the steel rod, then pass it through tiny holes one after another, and rely on the holes to compress the steel rod into a wire.

Not too difficult, but quite time consuming.

Fortunately, there is no shortage of manpower in the castle, and Yarrow doesn't have to do it himself. After he made those tools, there are servants who refine them from time to time to maintain the reserves in the warehouse.

"Harry, fetch some steel wires... Oh, yes," Yarrow suddenly thought of something, "By the way, ask the assistant housekeeper if there is any animal skin glue in the warehouse. If you have something to do, fetch some more."

The properties of animal skin glue are somewhat similar to murloc glue, but it is harder in texture and can be used as hard plastic.

"I'll go right away." Holly nodded, she had done these things many times in the past.

The arsenal has long been turned into Yarrow's laboratory, and no one is allowed to enter except for a few specific people.

So even if it is something specially made for Yarrow, it can only be placed in the warehouse.

After Holly left, Yarrow began to make detailed revisions.

The first is to drill holes in two sections of the pipe, and add a shaft rivet to each hole.

The unfolded hang glider is too big to fit in the space ring, so if you want to carry it with you, you must make it foldable.

In addition to the two sections of the pipe, a joint structure that can slide up and down is also made in the middle of the horizontal tail and wings, and holes are drilled to serve as connection points for steel wires.

According to the design drawing, the small pulleys are secured at the corners, and cooking oil is added to each position for lubrication.

After Yarrow finished these things, Heli ran over with all kinds of things, sweating profusely.

"My lord, the things have been brought."

"it is good."

Yarrow first said that he took the iron bucket containing the solidified animal hide glue and put it on the stove to heat it.

Then pick up the steel wire and start connecting the holes just reserved.

Several steel wires are pulled from the position of the tail and wings to the small platform below, and then two tie rods are made, and the pulled steel wires are bound to become the controller of the hang glider.

——It's too strenuous to control the hang glider with the body, so Yarrow also made an attempt. If it doesn't work, the hang glider is not big, and it can still rely on the strength of the body muscles to control the flight trajectory of the hang glider.

Then insert the small power core into the hollow in the middle of the tail, just like the 'eight-sided mirror' used to be operated remotely, it is connected to the console with silver wires, buried in the center of the control rod, forming a silver button.

It is said to be a button, but it is actually a silver solid dot, a magic transmission end.

The power core was originally equipped on the spare fire epee, but it was later replaced by the spare heavy armor. This is the third position it has replaced.

It can generate about [-] pounds of thrust, but because of its size, it lasts for a short time to output kinetic energy, so it can only be used as a booster for a hang glider for short-term acceleration and speed-up.

It's not that Yarrow is unwilling to make a new and larger power core. The main reason is that too many materials are not available in such a small place, and it is difficult for a clever woman to cook without rice.

So I can only take the power core of the spare epee, build the east wall to make up for the west wall, dismantle it, and install it on other things.

Constantly adjust the controller to ensure that the strength of each controller can be accurately conveyed to the wings, and then the canvas prepared earlier can be laid.

The main body of the hang glider is made after hot-melt technology and steel nails are used for fine fixing. There is no loose space for any canvas.

The next step is to make the control panel of the hang glider, which is also the only place on the hang glider where people can be treated.