{"product_id":"yumikiri-fire-kiri-board-for-string-kiri-set-of-4-takumi-no-yado-takumi-bow-kiri-string-cpt-m102b","title":"Fire-cutting board for snow-cutting and string-cutting, set of 4 pieces, Noyuku no Takumi bow-cutting, string-cutting, cpt-m102b","description":"Material: Cedar board straight grain Length: 300mm Width: 30mm Thickness: around 17mm\n \u003cbr\u003e\u003cbr\u003e \n  If you are right-handed, the trick to improving your skill level is to place your left elbow on your left knee to prevent shaking. The best material for a fire cutting board is cedar. A soft material is good, but the softer the better. Observe the wood grain. Choose a board with growth rings running vertically. This is what is called straight grain. In addition, choose wood that is not too crowded and has wide grains. In the case of a bow drill, the ideal thickness of the fire cutting board is 15 mm, if not, the thickness is 12 to 20 mm. If the material is thick, dig in and adjust the thickness. If you are just starting a fire, this thickness is within the acceptable range. This thickness is more efficient. This is because if it is too thick, the wood chips will cool down and scatter easily when they fall, which will prevent them from storing heat. On the other hand, if it is too thin, it will penetrate before a spark can form. The opening of the letter \"C\" is also slightly narrower for Kirimomi. Make the bow awl and string awl wider. The tip of the fire pestle becomes stable quickly. The ideal angle of the fire cutter mill is 60° for Kirimomi and 90° to 110° for bow and string drills.When processing the mortar, carefully cut it so that the left and right sides are symmetrical, especially making sure that the slope of the notch descends smoothly. . The wood chips that become the source of fire are scraped off by the friction between the fire-cutting pestle and the fire-cutting mortar. After attaching the tip, observe the line from the rear end of the fire-kiri pestle to the attached tip. There's nothing like a blur. If you are cutting the tip into a square shape, grind it so that it is as close to straight as possible. Rotate it 90 degrees and reinsert it on all four sides. Check the line between the fire pestle and the tip again. Attach the tip part at the best line. Try applying pressure to the left and right with your fingertips to check for further wobble. If it's shaky, you can't use it for work. This adjustment is even more difficult. Adjust by scraping with a knife. To do this, it is necessary to have a large supply of tip parts of various sizes (thicknesses). Unlike Kirimomi, it has more power, so it is preferable that the length of the bit be relatively short. If you use a 6cm long bit for the kiri fir, a 3cm to 4cm bit for the bow awl will be fine. That way, blurring is less likely to occur. I think it is easy to use a fire cutting board of about 30 cm. It is strictly prohibited to allow the fire cutting board to lift up during work. If the plate is 7mm thick, I think it will penetrate if you don't create a spark in 2 to 3 strokes. When working with a bow drill, the leather tape will go down below the mallet when you push the bow, and rise above the mallet when you pull it. It takes time to get used to this behavior. The rest is to remember with your body. Knowing the \"gap between theory and practice\". Even if you think you understand it in your head, when you actually try it, things don't go as planned. Experience this. Try it and you'll feel it. As you repeat it over and over again, your body will remember it on its own and get used to it. Professor Iwaki himself has named what he has been able to accomplish as an \"experiment to restore ancient technology.\" It is similar to experimental archaeology, but the difference is that it requires skill to reach the level of skill. Caution (Disclaimer) \u0026gt; Please read ■Do it outdoors ■Prepare water and a fire extinguisher ■Prepare wound tape such as band-aids. Please try too hard and your hands will peel. ■Target age: 18 years or older. Children younger than that age should be accompanied by an adult or follow the instructions of an educational instructor. \u003cbr\u003e\u003cbr\u003e \u003cbr\u003eMaterial: ‎Wood\u003cbr\u003eGender: ‎Abareru-kun Adventure Escape Island, Solo Camp, Survival Camp\u003cbr\u003eStyle: ‎One Piece\u003cbr\u003eProduct Size: ‎30 x 3 x 1.5 cm ; 260 g","brand":"Auto Parts Tokyo","offers":[{"title":"Default","offer_id":48015823536448,"sku":"B0B7VFQMT4","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/2584\/0704\/products\/51hfVoPEPWL._AC_US1200.jpg?v=1710253206","url":"https:\/\/megashopjapan.com\/products\/yumikiri-fire-kiri-board-for-string-kiri-set-of-4-takumi-no-yado-takumi-bow-kiri-string-cpt-m102b","provider":"Mega Shop Japan","version":"1.0","type":"link"}