How to cut a circle out of plywood. How to cut a circle in plywood: selection of tools, curly cutting technologies with a jigsaw, milling cutter and improvised means. Curly sawing methods

Often there are questions about how to cut a circle with a jigsaw, since many craftsmen are only faced with straight cuts of the material. But cutting out various degrees of curvilinearity seems difficult only at first glance.

For cutting you will need:

jigsaw;
plywood or other material;
saw blades for special purposes depending on the material;
marker;
sample;
working surface;
clamp.

Exist various ways. You can cut a circle both manually and mechanical jigsaw. Hand tool is a simpler device than an electric one. It is not suitable for thick layers of material and for long cuts. Jigsaws are divided into ordinary and artistic. The difference between them is in the location of the file: in the usual case, the file is located vertically, and in the artistic case, the role of the file is performed by a steel sheet. Ordinary jigsaw can be cut into thick plywood, for the manufacture of headboards or other furniture. Artistic can be cut complex elements, letters, puzzle details.

Cutting blades are varied for each type of jigsaw, and you need to select them according to the material with which you are working.

How to cut plywood with a jigsaw?

Before you cut a circle out of plywood, you should remember a few general advice to work with this material. Sawing can only be done on dry material. Wet plywood has increased resistance, and when cut, the veneer will begin to peel, which will lead to damage to the file or even the entire tool in the case of electric models. At the first sign that the teeth are not sharp enough or some part of the blade is bent, the file should be replaced.

When sawing plywood with an electric jigsaw, it is necessary, if possible, to place the main cutting lines along the veneer fibers.

This will promote clean cut edges. When working with a manual jigsaw, it is easier to cut across the fibers. This will not protect against chips, but there will be less chance that the file will pinch or it will go along the chip away from the intended line.

Before cutting out a circle, you need to transfer its contours to plywood. At the same time, it is necessary to try to ensure that areas with defects, chips, spots and knots fall outside the cut contour. You can transfer the outline to plywood by tracing it through carbon paper, cutting out a paper outline for a stroke, or simply draw a circle of the desired radius with a compass. If necessary, the starting hole in the plywood is made using a thin drill.

To cut a circle with a jigsaw, a canvas is inserted into the hole. free end at hand model is again fixed in place with a clamp or a fixing screw. The workpiece is pressed against the workbench with clamps, the cut is made according to the transferred line. When the circle closes, the central element is separated from the sheet and the edges are processed sandpaper or a file.

Before cutting with a jigsaw with an electric motor, you need to install a narrow file on it. There is a special improvement for this tool, called a circle cutter, it is installed in the center and work begins. When working on the tool, do not press, this does not contribute to a faster move. As a result of pressure, the jigsaw file and even its fasteners can bend and break. If the circle to be sawn has a small radius, it is better to do the work in several passes, as tight turns can break and bend the blade.

Usually in order to cut out from a piece of plywood or board even circle, masters resort to different kind routers, use manual or electric jigsaws, and, at worst, take up a hacksaw. Meanwhile, with a simple fixture You can cut a completely even circle with a circular saw. How to put it into practice, read and see the detailed step-by-step instructions.

materials

Before you cut an even circle with a circular saw, make sure you have the right materials. You will need quite a few of the latter:

a piece of plywood;
meter;
the circular saw itself;
nails or screws.

Step 1. Take a meter and measure the depth, length and width of the gutter on the working part of the table circular saw. Based on the parameters obtained, cut a block of suitable thickness from a piece of plywood.

Step 2. Insert the timber into the gutter and adjust the edges if necessary. The timber should slide easily along the gutter without catching it.

Step 3. Leaving the block in the gutter, place a square piece of plywood on top of it. Install it so that it does not interfere with the operation of the saw itself.

Step 4. Fasten the plywood firmly to the bar with self-tapping screws. When choosing fasteners, pay attention to their length. Self-tapping screws must not damage the surface of the desktop when screwing in.

Step 5. Take a piece of plywood or board from which you need to cut an even circle. Fit it into a square shape. Install plywood over the prepared structure and drive a nail exactly in the middle. Don't drive the nail all the way in. The plywood from which the circle is to be cut should rotate freely, and the nail itself will need to be carefully removed upon completion of the work.

Step 6. Rotating the square in a circle, cut off its corners so that you get an octagon.

Step 7. Continuing to rotate the square further, cut it sharp corners. At the end of the work, carefully sand the slightest bumps. Yes, without extra effort you will get an even circle cut out of the board with a regular circular saw.

Often the question of how to cut even circles from plywood with a jigsaw confuses novice craftsmen. After all, it is much more difficult to do this than a simple straight cut, no saw will help here.

Most often, a jigsaw helps to cope with the task of figured cutting. Jigsaws are manual and electric. A manual jigsaw consists of a frame with clips for the blade and a handle. Main disadvantages manual jigsaw: low mechanical strength of the web and small size framework. As a result, the blade is often torn and it is impossible to cut at a large indent from the edges of the part. Such jigsaws are usually used for processing wooden products. Electric jigsaws are ordinary, in which the saw is located vertically, and for artistic cutting, where the cutting element is a steel blade. Electric jigsaws are usually used when working with thick material.

Key Rules

To make the sawing process simple and fast, you must follow the basic key rules of work:

In order for the edges of the plywood to be even, it is better to cut along the canvas.

you can only work with dry material, as moisture increases the resistance of the material, as a result of which the veneer may begin to delaminate;
it is necessary to change the cutting blade immediately after the first signs of blunting of the teeth appear;
it is better to work with an electric jigsaw along the fibers of the material, so the edges will be more even;
with a hand jigsaw it is necessary to cut across the fibers of the veneer.

To work safely, you must adhere to the following recommendations:

firmly fasten the sawing table and saw blade in the frame;
the jigsaw must be with serviceable and well-fitted handles;
you should not press too hard on the jigsaw, trying to "help" it, this will only lead to faster blunting of the working blade;
straight and long cuts are best done with a wide blade, so the sawing process will go faster;
it is necessary to always see the markings, so the sawdust from the material being cut must be removed by hand, in no case should it be blown off, as they can get into the eyes.

Compliance with these simple rules will help a beginner learn how to cut circles with a jigsaw and facilitate his work.

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Cutting instructions

Before starting work, you need to drill a hole in the plywood for the jigsaw blade.

To cut even circles with a jigsaw quickly and beautifully, it is not necessary to be an expert in this field, but for a beginner it can be a very difficult task. In this case, the main thing is patience and, of course, the availability of the necessary accompanying tools, such as the jigsaw itself, a file, compasses, a simple pencil and surface polishing devices.

The first thing to do is to draw a circle on the surface of the material you will be working with. It is best to use a compass or choose a suitable circle and circle. It is necessary to trace with a pencil so that traces of it can be erased in the future.

If it is necessary to cut a circle inside the surface, then a through starting hole should be made. Next, you need to insert a jigsaw blade or file into this hole and fix the free end of the file with a clamp. Cutting is recommended in a sitting position. First of all, you need to fix the file in the jigsaw with a key, while keeping in mind that the teeth of the file should be pointing down. It is necessary to cut in the direction from top to bottom. The tool should be held level to avoid nicks and bevels.

The main thing in this process is not to rush and cut smoothly without sudden movements.

In the process of sawing, it is necessary to take small breaks, as the file can overheat and break. Here is the circle and ready. Now it is recommended to align the edges with a file, erase the markings left by the pencil and polish the part. Can be varnished if necessary.

Of course, it requires some skill and skills, but everything comes with experience. Therefore, following the recommendations described above should help the novice master in mastering this interesting and exciting activity.

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Usually, in order to cut an even circle from a piece of plywood or board, craftsmen resort to various kinds of routers, use manual or electric jigsaws, and, at worst, take up a hacksaw. Meanwhile, with the help of a simple device, you can cut an absolutely even circle with a circular saw. How to put it into practice, read and see the detailed step-by-step instructions.

materials

Before you cut an even circle with a circular saw, make sure you have the right materials. You will need quite a few of the latter:

a piece of plywood;
meter;
the circular saw itself;
nails or screws.

Step 1. Take a meter and measure the depth, length and width of the groove on the working part of the table of a circular saw. Based on the parameters obtained, cut a block of suitable thickness from a piece of plywood.

Step 2. Insert the timber into the gutter and adjust the edges if necessary. The timber should slide easily along the gutter without catching it.

Step 3. Leaving the block in the gutter, place a square piece of plywood on top of it. Install it so that it does not interfere with the operation of the saw itself.

Step 6. Rotating the square in a circle, cut off its corners so that you get an octagon.

Step 7. Continuing to rotate the square further, cut off its sharp corners. At the end of the work, carefully sand the slightest bumps. So, without any extra effort, you will get an even circle cut out of the board with a conventional circular saw.

The electric jigsaw is a well-known tool manual type designed for cutting patterns on various surfaces. In its significance, it is as important as a drill or a hammer drill.

The jigsaw is used for sawing various kinds of materials (wood, metal, etc.).

They can make straight and curved openings in wood of any species and other non-natural materials, precise cuts geometric shapes with a complex trajectory. To find out the question of how to cut a circle with a jigsaw, the tips and recommendations listed here will help.

Bench tool properties

The jigsaw is intended for household and professional needs. Devices of the first type are characterized by low power and are designed for work in small volumes. The purpose of using special equipment is the professional orientation of the tool, its productivity and a long period of work.

Typically, household appliances have a standard set of functions:

frequency of moves;
method of fixing the sheet for cutting;
pendulum type movement;
saw rotation.

The electric jigsaw is used for finishing surfaces, sawing out uneven edging, holes in the internal position, and making furniture. The processed material is reliably fixed on the basis. Marks are made on it in advance, then holes are sawn. The rotational vibrations of the shaft are converted into translational movements. The saw is fixed on the rod, its quality determines the period of use of the product. When choosing a device, preference should be given to round shapes and thickened stems.

The jigsaw is different positive qualities, How:

Cutting holes in any samples.
A simple device allows for quick replacement of saws.
Possibility to make round or rectangular cuts.
Ease of use.
Does not require special knowledge and skills.
The presence of a significant number of saws with different step limits of action, tooth shapes makes it possible to carry out different kinds work in a single device.
Reliable fixation of the sawn sample allows any distance from the edge of the product.
The device of universal action allows you to cut to any depth.
At the time of work, the material is practically not damaged.

Drawbacks:

The shortened movement of the web provides a slowdown in the operation of the device.
Possibility of injury.
Probability of cable failure.
Perform a battery level check.

The jigsaw has a built-in protection system, pneumatics and an electric drive.

Released new items are equipped with advanced features: reducing the number of vibrations, improving work productivity, equipping the device with convenient functions. Depending on the method of fixing the cutting part, saws are:

with holes;
with a cruciform element;
with a smooth base.

A jigsaw in some way can replace a router, hand saw, circular, chain saw, angle grinder. The tool is necessary in any household, it allows you to carve wood.

The current supplied to the device from the network gives an impulse to the engine, setting it in motion. Together with the gearbox, it transmits momentum to the gear, which secures the stem. The circular action of the shaft is modified into the movement of the working element of a reciprocating nature, moving up and down. Saws are fixed with screws or clamping mechanisms. Such fasteners help to change canvases in a short time.

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Rules for working with an electric jigsaw

To understand how to properly cut a circle in wood, it is important to study the features. This carpentry tool helps to saw out ovals, wavy patterns, figures with uneven outlines, non-standard carved caskets, shelves with patterns of a through plan. In order for the interaction with the jigsaw to be organized and safe, it is important to adhere to the rules:

In order for the work with the jigsaw to be quick and safe, do not forget to fix the product before work.

To avoid inconvenience, special stands should be prepared during work. A slot is made to the middle of the support, somewhat resembling a lock hole.
The stand is fixed with clamps or screws to the workbench.
At the time of work, you need to sit down, place the file strictly vertically relative to the floor and perpendicular to the surface.
The workpiece is placed in the middle of the stand, holding it with your left hand, you can cut plywood with your right hand. The location of the cuts should be in the middle of the support hole.
The tool does not tolerate strong pressure: a small touch and a gradual movement up and down is enough, and it will begin to work effectively.

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