1, the first one: the classic method of drilling wood for fire, which is the most widely known method, but it is also the most difficult method. First of all, find the right wood drilling board, dried poplar, willow and so on. Will be a good choice, because their texture is soft. Then find a suitable branch as a drill bit, which is hard and the conditions are not as harsh as the drilling board. Then, the edge of the drilling plate is drilled into an inverted V-shaped groove.

2. Finally, put a combustible or dead leaf under the drilling board, and then drill hard with both hands until the fire comes out. Other steps are the same as the first method, only this time two people cooperate.

3. One person fixes the drill shaft on the drill floor with a wooden cover with a groove, and the other person wraps a rope or rattan with high friction around the drill shaft several times, and then pulls it back and forth quickly. This two-person cooperation is much more efficient than the first one.

4. Simple fire planing method: dig a long slot on the cork, with combustible materials in front of the slot, and push it forward with hardwood strips until Mars ignites the combustible materials.

5. Iroquois ignition. The device invented by Iroquois kindling is quite efficient. One end of the drill shaft is wound with two ropes, and the other ends of the ropes are respectively fixed on the hard cross plate. A hard wooden wheel is used as an accelerator in the middle of the drill shaft. When winding rope, press down the cross plate hard, so that the drill shaft produces extremely fast speed, and then drill sparks.