"Hmmm! Team Wang, you search for the production method and process materials of the metal scabbard again! Zhan Xiaogui said again.

Wang Yueyue nodded and got busy again and began to search.

Step 1: Hand draw or print the template pattern

On the paper folder, with French curves, draw a satisfactory shape with a pencil, a good shape will make the knife more beautiful. Until you get a satisfactory shape, then cut out the pattern with scissors. Of course, if you don't know how to draw by hand, just find a shape online and print it out one-to-one.

Step 2: Transfer the stencil to the saw blade, use chalk or soapstone, on the hacksaw, draw a line along the edge of the stencil to outline the shape of the knife

Step 3: Tap the saw blade along the line, it is recommended to wear goggles and earmuffs to protect your ears and eyes before starting this step. It's also important to note that if you place a hacksaw on an anvil or metal backing plate, be careful, as both are quenched steel, and the shards from the hammering will fly and potentially injure people. Then, pick up a hammer and a cold chisel, follow the drawn line, and hit it hard...

Step 4: Get the blade, if using an anvil, place the blade that has been chiseled out the marks along the line to the edge of the anvil, and continue to beat along the line with a cold chisel until it is completely broken. If not with an anvil, it may also be clamped, beaten and broken with a vise.

Step 5: Primary grinding, because the blade is chiseled, naturally uneven, so the next step is to use a file for primary grinding. Clamp the blade and start sharpening with the file. Note: Because the metal is resonant, the sound will be very unpleasant, so be sure to wear good earmuffs.

Step 6: Make the handle, choose the hardwood, and saw two pieces of wood of the same size. Because it is a Fulltangknife knife, the size of the wooden block should be exactly the same as the size of the handle. In this step, it is not necessary to be particularly precise, as it will be sanded at the end.

Step 7: Sharpen and polish the blade, first use a steel wool ball, wipe the blade, and try to remove and clean the debris on it. Next, acetone is used to remove the oil from the blades, mix the oil, and so on. (This step is not required, as it depends on the previous environment in which the saw blade was used). Then, a primary grind can be done using sandpaper.

Step 8: Punch the blade. Because the knife handle needs to be fixed with three rivets, it is necessary to make three holes in the blade and install the rivets on one side to secure the wooden knife holder. You can also use a more professional hole opener to punch holes. If you are using a drill, you need to use the nail to knock the hole in the center so that the drill does not offset or slip away.

Then the drill bit is best to make a short drill bit hole, you can first drill a small drill bit at low speed, and then use a large drill bit to expand the hole.

The two-piece wooden knife handle also needs to be punched, and the brass rod is inserted together with the punched blade (you can search on Taobao: handle rivet), and the same is true for the wooden knife handle on the other side.

Step 9: Glue the handle, using a small amount of clear epoxy, and glue the wooden handle piece as well as the other side. Then clamp with furniture and squeeze until the epoxy begins to seep out, stop clamping.

It can be seen that many rivets are too long and need to be removed, and only about 0.3 cm can be retained.

Step 10: Tighten the rivets, after installing the rivets, start to tighten the rivets, place the pack on the anvil or metal plate, hit it with the round head of the ball hammer, after a few minutes, knock on the other side, repeat, and know that it is done.

Step 11: Trim the shank, first polish it with a file at a 45 degree angle... Then sanded with coarse sandpaper of 80 sand... Then come down and polish it with fine sandpaper, and grind it from the sand.

Step 12: Finish the shank, after the shank is polished, you can use a cloth to put a little oil on the shank.

Step 13: Cut the edge with a large piece, first with a file, first at a 20-22 degree angle, then at a 45 degree angle...

Step 14: Sharpen the knife, use a whetstone to sharpen to... Finished product, plus homemade knife sets. ”

"The utility model relates to a multifunctional scabbard, is particularly suitable for adjusting the wearing height and replacing the straight knife wearing direction when people wear a knife.

Whenever the straight knife is used, the head of the blade is inserted into the scabbard for easy wearing and storage. It consists of a scabbard body, a nose to wear, and a whetstone. The scabbard body is generally made of leather. In order to be able to wear a straight knife, a nose like a trouser nose was sewn into the scabbard. The scabbard is then worn through the nose on a belt. Sometimes, a pocket was sewn on the scabbard body, in which a whetstone was contained.

Straight knives that use this way of wearing can only be worn at a single height; It is impossible to arbitrarily adjust the height of the straight knife according to the different heights of the people or the habits of wearing; At the same time, since the nose is fixed to the scabbard, when worn, it is only suitable for holding a knife in the left hand or in the right hand; If the right hand grips the knife on the right side, the knife is held when the knife is drawn, and the back of the knife is on the same side as the mouth of the hand during normal use, and the blade is on the opposite side.

When switching to the left side of the sword, the left hand is used to hold the knife, which is the opposite of normal use, the blade is on the same side as the tiger's mouth, and the back of the knife is on the other side, so it is not suitable to change the left and right directions of the straight knife to wear. In addition, when sharpening the blade, take out the whetstone from your pocket and hold the whetstone in your hand. Due to the limited size of the scabbard, the whetstone is small, which is laborious when sharpening the knife and is most likely to injure the human hand and is unsafe.

Based on the defects and deficiencies existing in the above-mentioned art, the purpose of the utility model is to provide a multifunctional scabbard, it can not only arbitrarily change the height of the straight knife wearing and adapt to the replacement of the left and right directions of the straight knife wearing, but also the whetstone is fixed on the scabbard, and the hand holds the scabbard to easily sharpen the blade without injuring human hands. The purpose of the utility model is realized in this way, and the multifunctional scabbard comprises a sheath body, a wearing nose and a whetstone.

The utility model discloses a technical special feature is that on both sides of scabbard body, be provided with the same dovetail groove, be fitted with the wearing U-shaped clip of sliding in the dovetail groove of one side, and be equipped with a whetstone in the dovetail groove of the other side. In order to fix the sliding U-shaped clip and the whetstone on the scabbard, a keyhole reed integrated with the scabbard body is arranged on both sides of the scabbard, and a deadbolt is correspondingly arranged on one side of the slide board and both sides of the whetstone.

When they are individually installed in the dovetail grooves on both sides of the scabbard, they are locked in the keyhole of the keyhole reed by the deadbolt, and the sliding U-shaped clips and whetstones are fixed to the scabbard body for human use. When it is necessary to remove the sliding U-shaped clip and whetstone, there is a nail groove at the end of the keyhole reed, so you only need to press the nail groove with the human fingernail to the nail groove.

Due to the elasticity of the keyhole reed, the deadbolt can be removed from the keyhole and the sliding U-clamp and whetstone can be removed. The sliding wearing U-shaped clip is made up of a skateboard and a U-shaped clip. One side of the slide plate is made into a dovetail, which can be slidably loaded into the side dovetail groove of the scabbard body, and the other side of the slide plate is provided with a penetrating long chute, and the bottom of the elongated chute is parallel to the dovetail groove of the scabbard body, and a rectangular chute with one end is closed.

At the bottom of the long chute, the height of the straight knife is changed according to the need, and a circular clamping hole is arranged. Each card hole is a position that replaces the height of the straight knife wearing, and the number of the card hole can be divided according to the needs of the design, and generally can be divided equally according to the length of the long chute, and 3-6 need to be provided.

In all the clamping holes of the long chute, only be provided with a lock reed corresponding to them, one end of the lock reed is not fixed, and the end is made into the clamp head of convex shape, the clamp head on the lock reed can be freely bounced into each clamping hole by the elastic force of the lock reed when sliding, and the push button is connected with the screw through the long chute at the clamp head. The other end of the lock reed is fixed to the long leg of the U-shaped clip. The U-shaped clip is made of elastic metal material, and the U-shaped clip is made of a long leg and a short leg. The long legs of the U-shaped clip slide into the rectangular chute of the skateboard.

When you need to change the height of the straight nine wear, press the button firmly with your hand. At this time, the lock reed is a convex clamp head out of the card hole, continue to push it by hand, and exert force on the push button up and down, and push the button to make the long legs of the U-shaped clip slide up and down in the rectangular chute of the slide plate.

When sliding to the required wearing height, that is, when sliding to the card hole, the hand is immediately released, and the convex and circular chuck on the lock reed will automatically pop into its clamping hole, and the U-shaped clamp can be used for people to wear the straight knife, so as to achieve the purpose of changing the wearing height of the straight knife up and down.

Because the two sides of the scabbard body are symmetrically provided with the same ruler dovetail groove, the dovetail of the sliding U-shaped clip can be arbitrarily inserted into the dovetail groove on the left or right side of the scabbard body according to the needs of the left and right hand, so as to realize the function of replacing the left and right directions of the knife intake. ”

Zhan Xiaogui saw that Wang Yueyue had searched for and sent to him the information about the scabbard, so he decided to make his own scabbard in this way.