How to make a knife? from scissors with your own hands? | We make a universal Japanese knife

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Good old scissors broke - it does not matter. Let's make a universal Japanese knife out of them. Moreover, its narrow blade allows it to be used in carving and woodcarving. Yes, and in the kitchen, he can take a worthy place, displacing competitors, due to its lightness and convenience.

Content:

Content:

Materials for manufacturing
We carry out tests
- - Video: How to make a knife with your own hands
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Materials for manufacturing

Not all scissors are suitable for making a knife, but only those that are made of hard and durable metal. Stationery scissors are not suitable for this purpose.

In order to make a Japanese knife, you will need:

old scissors;
Bulgarian;
pencil;
angle grinder;
belt sander;
clamps and vise;
cutter;
sandpaper of different grain sizes;
saw;
polyurethane and plastic blanks;
glue for plastic;
2 rivets of different thickness;
hammer;
oil and napkin.

Step 1. Disassemble the scissors

We press the scissors with clamps (if they are not, we fix them in a vice) and cut off the fixing screw with a grinder.

Step 2: Making the Knife Blade

We choose the part of the scissors that suits us best, and draw on it the shape of the cutting part of the future knife and handle.

Since the knife will be narrow, for better fixation in the palm of our hand, we make a notch for the finger in front of the handle.

We cut the workpiece with a grinder along the marked lines.

To cut a notch under the finger with a grinder, first we make transverse cuts to the intended line, and only then we cut out the given contour step by step.

As a result, we get something like this.

Clamping the workpiece in a vice, using grinding tools, we give it a streamlined shape.

We sharpen the knife blade on a belt grinder. We smooth out all the bumps.

Here is the look our workpiece has acquired.

With a cutter, we correct the notch for the finger.

Intermediate result.

Step 3. Making the handle

On the polyurethane plate we draw two blanks that repeat the shape of the knife handle (one of them is drawn in a mirror image). We draw exactly the same blanks on plastic.

Using a vise to fix, cut out the drawn blanks with a saw.

Using sandpaper with a coarse grain, we grind polyurethane and plastic blanks for better adhesion to the glue.

Using glue for working with plastic, first we glue a plastic overlay to the shank of the knife on one side, and then a polyurethane one. We insert the rivets into the pre-drilled holes and hammer them with a hammer so that part of them is on the back of the handle. Then we glue two plates to this side of the shank, putting them on the rivets.

Clamping both sides of the handle with clamps, let the glue dry.

Using a belt grinder, we grind the protruding parts of the rivets and smooth the side surfaces of the handle.

We rivet the rivets on the handle and, holding it in a vice, continue to smooth out the bumps on the side surfaces of the handle with a file. Then, removing the workpiece from the vise, we make bevels on the handle.