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The latest website: "The bowstring drilling method requires several pieces of wood, a drill shaft, a drill plate, a backing plate, a hand-held stick, a piece of rope plus the most important tinder to make a firelighter, and then use a knife or other Sharp tools process these raw materials."

Wearing a spare brown robe, Bi Fang searched around in the bushes. He picked up a branch, pinched the hardness with his nails, and found that it was not appropriate.

"The principle of the bowstring method and the hand drilling method is the same, but the structure is slightly more complicated. The equipment replaces part of the manual work, and the elastic potential energy is converted into kinetic energy in exchange for higher efficiency. Therefore, the choice of materials is similar to the hand drilling method. It's almost the same, I won't repeat it here."

Shutting through the bushes, Bi Fang quickly found a suitable drill shaft. It was a small bush with a bunch of small red grapes growing on the branches.

It may be a long time to bear fruit, and the fruit looks crumpled.

Bi Fang stretched out his hand to break a branch and cut it with a whaling fork.

"The burdock I used last time, this time we can use it, elderberry."

[Elderberry? It sounds familiar. 】

[I know, it's Dumbledore's old magic wand! 】

[Excuse me, can your elderberry be used as a magic wand? (funny)】

[Damn, I remember when you mentioned that, feeling is the material of the old magic wand is elderberry! 】

[Can this fruit be eaten? It feels very similar to the Jagerda in Mohe]

Bi Fang knew that everyone was playing stalks, and joked.

"That may disappoint everyone. I don’t know how to make magic wands, I only make drill shafts. The elderberry is soft in the middle, but the rod is harder and has wood pith. It can produce more and larger sparks than the last burdock. Also suitable."

"As for the fruit." Bi Fang stretched out his hand and held it up. "The elderberry fruit matures from September to October. These are already rotten, and we can’t eat it even if it’s not rotten, because the elderberry fruit contains a glycoside. This substance is the raw material used to make cyanide, and we cannot eat it directly."

The audience was greatly disappointed, thinking that this fruit is similar to the one in Mohe.

It was very convenient to find wood in the woods. It didn't take long for Bi Fang to find all the materials. On the other side, Etienne dug a pit as required.

Bi Fang touched the stone in the pit, nodded in satisfaction, and explained in French why he had to pave the stone in the pit.

"Because of the geese and gliders, we cannot stay too far away from the river bank. This results in the surrounding soil being relatively humid, and we must choose a dry place to make a fire, so that the fire is easy to be lighted and spread on the bottom of the fire pit. That’s the role of the stone."

"We must use dry stones here. Wet ones, especially those on river beds or valley bottoms, must not be used. Such stones will generate steam when heated, which will cause an explosion. It is very dangerous. It doesn’t matter if you can’t find completely dry stones. Remember not to use stones that have been soaked in water."

[Fine, too thin. 】

[Learn another small detail]

[Excuse me, are you polite? 】

With the materials, Bi Fang began to process.

"The length of the drill shaft should be at least as long as the distance between the tip of your thumb and the tip of your index finger after you open your hand, so that it is easy to operate, and then sharpen the tip to make the overall round and smooth."

"The width of the drill plate should be more than twice the thickness, and to be easy to step on with your feet and keep it stable, the thickness of the backing plate should also be greater than the diameter of the drill shaft."

"The stick you hold in your hand, that is, the fire bow, is best to be slightly bent. A straight stick can also be used, but it is best to have a certain degree of curvature. In short, the whole must be easy for you to operate."

"For rope, we can use shoelaces. If you don't have shoelaces, you can make a temporary one from tree fiber."

After preparing all the materials, Bi Fang split a gap on one end of the drill board and cut out a small hole, gathering the fines scraped from the conifer to serve as tinder.

Then he dug a small hole in one end of the backing plate, stuck the main drill shaft, tied the rope to the two ends of the rod, and then wound the drill shaft around the rope. The wooden rod and the drill shaft were in a cross.

"You must work hard to control the tightness of the rope, neither can it be so loose that the drill shaft can slide up and down, nor can the drill shaft be too tight to move. Ideally, the drill shaft can barely twitch after applying a certain amount of force. ."

Etienne looked surprised and couldn't help asking: "How many ways do you have to make a fire in the wild?"

"Haha, I really haven't counted this yet." Bi Fang raised his head and thought about it carefully, "There are probably seven or eight different ways to make a fire in different environments."

"So much?" Etienne said in shock.

"In fact, there are not many, there are actually only a few types that can be used in different environments." Bi Fang shook his head and looked at Etienne, "Why, want to learn?"

Etienne nodded.

"I want to learn when I go back and I can teach you." Bi Fang smiled, and then started to make a fire.

He stuck the drill shaft on the hole of the drill plate, inserted the tail into the small hole in the backing plate, stepped his left foot on the drill plate, kneeled his right leg on the ground, and pressed the backing plate with his left hand to control the pressure of the drill shaft, and his right hand began to stabilize And forcefully move the fire bow back and forth.

Soon, smoke began to appear on the drill board, and many viewers were in an uproar.

[This efficiency is too fast, much more convenient than a hand drill]

[Fast is fast, but I feel so complicated, I can’t remember the look...]

【Me too. 】

Etienne was very excited when he saw the smoke coming out, but Bi Fang did not stop, but continued to pull the fire bow until after seven or eight minutes, the smoke became bigger and even a red fire light flashed by. Stop and pull the bow.

Carefully take out the drill shaft, there is already charcoal fire on the drill plate at this time.

Bi Fang carefully moved the charcoal fire onto the prepared firelighter and blew it lightly. Soon, a small flame ignited, and the entire firelighter was wrapped in flames.

[Great! 】

[Zeng Hang presented the anchor meatballs*1000-too fast, Lao Fang is too fast! 】

【Efficiency Leverage】

"call!"

Bi Fang breathed a sigh of relief, and Etienne on the side hurriedly threw the dead branches into the fire pit, and the flames grew rapidly.

Squeeze the soaked clothes dry and put them on the fire to bake. Bi Fang sat by the fire and felt the long-lost warmth, and felt a lot more comfortable.

"The bow drilling method is very convenient, but there are many details, so it is difficult for unfamiliar people to succeed, and it is not suitable for novices."

"Just like the tightness of the rope also determines the flexibility of the bow~www.readwn.com~ During use, the length of the string may need to be adjusted. For convenience, we have to tie the knot at one end when we bind the rope. Slipknot at one end."

"Drilling holes can also use some grease to increase lubricity, so I deliberately used conifer tinder, which is rich in grease."

It is these small details that made this fire so successful.

Etienne continued to dig pits on the side, preparing to burn two more fire pits, so that the area of ​​the clothes would be larger and dry faster.

He doesn't know how to survive in the wilderness, he can only help with these little things, and try not to hold back.

Etienne had just dried a piece of clothing, and suddenly, there was a strange noise.

Gululu...

He is hungry.

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