Attention !!! This homemade product is posted for informational purposes only.
It is forbidden to create and use as a cold weapon, according to Article 223.4 of the Criminal Code of the Russian Federation, imprisonment for up to two years is threatened! Hello, dear readers and homemade products!
It is not always possible to get along in a workshop the capabilities of a universal knife with replaceable blades.
In this article, Alexander, author of the YouTube channel “Everything We Can”, will tell you how he made a small craft knife from an old saw blade.
Such a knife is great for cutting leather, sheet plexiglass and other similar materials.
This homemade product is quite simple to manufacture, and subject to the temperature regime, quenching is not required.
Materials required for homemade products.
– Old circular saw blade
– Wooden block
– Two-component epoxy glue, petroleum jelly, sandpaper, masking tape.
Tools used by the author.
– Knife sharpener, sharpening stones
– Cutters for metal (for dremel)
– Electric jigsaw
– Grinding machine
– Diamond grinding discs
– Metal ruler , marker, pencil.
So, the material for the knife will be an old circular saw blade.
The teeth of this blade are soldered, and the craftsman wants to retain part of the tooth shape to form the cutting edges. It is the upper area of the tooth that is hardened, and is well suited for these tasks.
The author marks the contours of the future blade, and cuts it out with the help of a grinder. First, excess disc elements are removed, leaving only a blank with small reserves for further processing.
small items. When cutting, the workpiece should be periodically cooled to prevent overheating.
Now, on the orbital sander, the planes are cleaned and the edges are aligned.
< img class = "aligncenter" alt = "Making a simple craft knife (for plexiglass, plastic, leather, paper)" src = "https://usamodelkina.ru/uploads/posts/2021-07/1627662723_rn-024.jpg"/> Further processing is done with a metal cutter using a dremel . The same operation can be done with a set of files, but it will take longer.
A diamond grinding disc is installed on the grinding machine, and slopes are formed at an angle of 20 degrees.
A little grinding on the machine, and a slight rounding of the edges with a dremel with diamond cutters .
Now you can start sharpening the blade on a special knife sharpener , turning the workpiece over, and gradually increasing the grain size of the stones.
So, the blade is almost ready, you can start making the handle. Hardwoods are better suited for it.
The blade has a peculiar shape and is inclined relative to the holder. The author transfers this angle to the future workpiece, and marks out the contours of the future handle.
First, rough trimming of excess wood with a electric jigsaw .
The workpiece is fixed in a vice, and it can be rounded with a grinder with a petal disc.
The flap disc is moved to the grinding machine , and precise adjustment of the shape bends is performed.
Finishing grinding is done manually, sandpaper tape.
The author made a hole in the handle and sealed the blade with masking tape.
< img class = "aligncenter" alt = "Making a simple craft knife (for plexiglass, plastic, leather, paper)" src = "https://usamodelkina.ru/uploads/posts/2021-07/1627662732_rn-095.jpg"/> A notch is made on the post for better fixation.
the blade is set in its place.
After the glue has cured, the masking tape is removed and the remaining glue is removed.
It remains to saturate the wooden surface of the handle with vaseline oil.
A sharp angle at the end of the blade is used to cut the Plexiglas sheet. It works like a scraper and can scratch a deep line in a few passes.
Now the workpiece easily breaks along cut line.
Even on long enough parts a very smooth edge is obtained at the place of the break.
Cutting leather and paper is carried out with the handle vertical.
Thanks to Alexander for an interesting modification of a craft knife for cutting plastic, leather, paper.
Good mood, good health, and interesting ideas to everyone!
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The author's video can be viewed here.
It is forbidden to create and use as cold weapons, according to Article 223.4 of the Criminal Code of the Russian Federation, imprisonment up to two years is threatened!