How to make an even circle with a jigsaw. How to cut an even circle out of plywood. Defects in work

How to cut straight with a jigsaw? This tool is a saw equipped with an electric drive. It can cut various materials:

wood;
metal;
plastic;
tiles.

Working with a jigsaw is simple if you follow the rules: the table must be stable, the material is firmly fixed, the correct saw is selected.

The tool can cut parts, cut workpieces in a straight or circular line. How to cut with an electric jigsaw?

Principle of operation

Materials and tools:

wood;
jigsaw;
protective glasses;
protective gloves;
machine oil.

First of all, it is necessary to firmly fix the material being cut.

If the jigsaw cuts crookedly, you need to check the stability of the desktop and the strength of the workpiece. Using a jigsaw, it is undesirable to cut a tree along the fibers, since it will be quite difficult to make an even cut.

If, nevertheless, it is necessary to perform just such work, then a parallel stop must be used. It is attached to the jigsaw with one side, and the other side should rest against the edge of the wood. This will ensure an even cut.

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The Right Process

If during work it becomes necessary to cut a circle inside the wood, then you need to drill a small hole in the center of the future circle. Then they put a jigsaw in it and move towards the circle indicated on the material.

In the event that it is necessary to cut a hole in the shape of a rectangle, you need to move the saw along the side of the rectangle, then smoothly around the corner, cut out the next side. When required hole will be ready, you need to draw the corners.

When performing work, do not press hard on the tool, as this can cause the device to overheat and fail. Don't use the saw for too long as it gets dull and starts to catch on the edges of the wood.

When sawing durable materials you need to lubricate the file with machine oil. This will make cutting easier.

If the work is performed at low speed, then you need to take breaks, as this will cause the device to overheat.

When working, you must follow safety precautions, cut with goggles and gloves.

After finishing work, the jigsaw must be cleaned and lubricated with machine oil.

The device can have a normal and pendulum stroke. In the first case, the jigsaw moves vertically. At the same time, it cuts the wood when moving up. A device that uses a pendulum stroke, when moving up, additionally feeds a jigsaw forward. With this method, the speed of work increases, and the tool blade wears out less.

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Sawing technique

During construction works sometimes it becomes necessary to cut the material evenly, with extreme precision.

Materials and tools:

wood;
jigsaw;
guides;
clamps;
pencil;
roulette.

For even cut, which has greater accuracy, you need to use a tool with a high frequency of blade movements.

The file should be wide, designed to work with wood.

Work will be done with a guide. To do this, you can use a flat board or rail.

It is necessary to prepare 2 clamps. They should fit the workpiece and guide.

The workpiece must be placed on an elevation so that the jigsaw does not rest when cutting.

Then you need to measure on both sides with a tape measure the required width of the section to be sawn off. Make marks. Then they are connected along the ruler, getting a cut line.

Then lay the guide on necessary distance from the cut line and secure it with clamps. After that, the jigsaw is placed with a file to the cutting line. Then press the guide against it and fix it with a clamp. You need to fix it so that it does not move, but not too much.

Then the same actions are performed on the other side. Here it is necessary to clamp firmly, but so that the wood does not get depressions.

After that, they move on to the first clamp. Check its installation and clamp it.

Produced necessary measures for an even cut.

Now turn on the jigsaw. Install top speed. The pendulum stroke regulator is set to the number 1. Install the tool with a file to the cut line. Press the side of his platform to the guide and start cutting.

When working, do not press too hard on the device. Slightly move the tool forward while controlling its platform. It should be pressed against the guide so that it does not move. When a few centimeters remain until the end of the cut, you need to hold the sawn off part so that it does not break off.

This is where the work ends. The cutting line is perfectly straight.

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

Electric jigsaw is used for sawing various kinds 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.

Usually 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 round shapes and thickened stems.

The jigsaw is different positive qualities, as:

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.
device 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 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.

Attributes:

pencil;
drill;
drill;
jigsaw.

Plywood (and to a lesser extent other sheet materials such as chipboard or oriented strand board) has significant decorative potential. Sufficient if available a simple tool and certain skills, you can cut almost anything from plywood.
But in order for the details obtained as a result of such a carving to look presentable enough, the master should have a few tricks in stock. It is about them that we will talk in our article.

Getting started with sheet materials, many craftsmen have an idea only of how to cut in a straight line. 'Cause the question is how to cut even circle from plywood, many can confuse. Indeed, ordinary or circular saw fail to cope with the task.
Figured cutting is most often done using the following tools:

The simplest device that is used for sawing. With the help of a jigsaw, even the most delicate work can be done by hand, but it is practically not suitable for thick material or long cuts.
Jigsaws. Here you can use two types of devices:
- ordinary, with a vertically located file;
- artistic, in which the role of the cutting element is performed by a steel sheet.

Ordinary electric jigsaws will come in handy when working with thick. But if you are looking for a way to cut letters out of plywood or make others complex elements(for example details children's constructor), then it is best to use a model with a band saw.

Advice! Naturally, for each type of jigsaw, there are several types of files and blades. Right choice cutting element is necessary condition High Quality products.

In addition to jigsaws for a curved cut, you can use a furniture router. Despite all the complexity in management, in terms of the quality of the holes made, it is many times superior to most models of plywood saws. With the help of a milling cutter, you can.

Also, do not forget about improvised devices, but we will talk about their use in the appropriate section.

Cutting from plywood has several nuances that the master needs to consider:

Firstly, you can only cut on dry material. High humidity leads to an increase in the resistance of plywood, therefore, with excessive force, either the veneer will begin to delaminate, or the file will break.
Change saw or cutting blade should be done as soon as the first signs of dullness appear.
If we are cutting plywood with a jigsaw, then in order to get cleaner edges, the main cut lines should be placed along the grain of the veneer. But with hand saws it is easier to work across the fiber: there will be a few more chips, but there is less risk of pinching the file or moving it away from the intended line.

Advice! When transferring drawings for cutting from plywood to a blank, try to place the template in such a way that the elements to be removed fall into areas with defects: knots, chips, spots, etc.

Curly cutting technologies

jigsaw

As we noted above, a jigsaw will come in handy if we are looking for how to cut a word out of plywood or make other parts of a complex shape:

We transfer pre-printed drawings or templates to the workpiece using carbon paper.

If there are through sections in the structure, we do thin drill starting holes.
We insert a file or a jigsaw blade into the hole. We fix the free end of the file with a fixing screw or clamp.
We make a cut along the intended line, pressing the workpiece to the workbench. The saw moves either automatically (for electric curly jigsaws) or manually.

After all the arc elements are propylene, we remove unnecessary sections and process the finished part with a file or sandpaper.

Frazier

A furniture router is great for cutting thick plywood. Certainly, complex shape you can’t make it with it, but cutting an arc or a circle is easy:

We fix the standard ruler, which is part of the router, in the center of the circle with a self-tapping screw.
If the length of the ruler is not enough, you can assemble a simple bracket from metal profile or wooden planks.
By rotating the cutter along a fixed radius, we select the groove along the circumference, resulting in an almost perfect hole.

Note! When calculating the diameter of the circle, the dimensions of the working cutter should be taken into account. The instructions for the device will tell you the exact numbers.

In this way, you can cut not only circles, but also individual arcs - for example, in order to make grooves for furniture brackets.

improvised means

For curly elements, it is desirable to have special devices, but any craftsman may need to make a rounded hole in a slab of glued veneer. Below we will tell you how to cut a circle out of plywood when there is nothing at hand.
Well, almost nothing:

For plywood cutting, a wooden plank with two nails is used.
One nail is driven through the bar into the workpiece, exactly in the center of the hole being made.
We drive the second nail into the plank in such a way that the point comes out on the wrong side by at least 5-10 mm. The distance from the first nail should be equal to the radius of the hole being made.
Rotating the bar, draw a furrow on the plywood with a point, deepening it with each turn.
Instead of a stick, you can use a strong cord. The principle of operation remains unchanged.

The sharper the nail used, the faster the hole will be made.
It should be noted that although the price of such a device is low, it should be used only when other methods are not available: the edges still turn out to be far from ideal.

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 sawdust from the material being cut must be removed by hand, in no case 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.

With a saw, the tool must be placed to the cut line. The guide is squeezed with the platform side. After that, start cutting.

The tool moves forward smoothly, the platform is carefully controlled. The platform and guide should move towards each other so that nothing moves. The sawn off part must be carefully held with a few centimeters left to the end. Then the part will not break off.

What to do if you have problems with accuracy

The main requirement is the reliable fixation of the material for which processing is required. In addition, the cutting should be convenient for the person himself.
It is better to use guides if there is great doubt that a person will cope with the work. For example, wooden block will be an excellent guide for straight cuts. It is simply fixed along the markup. It is much more difficult when the shape of the future product is quite complex. Then the use of patterns is recommended. Otherwise, the speed of work will have to be reduced so that the result is more accurate.
Saw problems are one of the most common problems when cutting. There is a possibility of chipping, blunting. It is better to inspect if it is noticeable that the tool is strongly retracted to the side.
In the presence of jerks, there is a possibility that the cut will go to the side. Other failures in the tool also lead to a drop in accuracy. It is recommended to start troubleshooting such problems immediately, on the spot.
The skill of the performer himself also affects the accuracy of the final work.

Professional secrets

It is necessary to check how firmly the canvas is fixed.

This mechanism may have its own characteristics depending on the manufacturer.

To work with any cutting tools, it is really important to fasten the blade, its general position.

A useful device will be responsible for the removal of sawdust. Its working principle is very simple. There is a flow of air from the fan that cools the motor.

It is also used to remove debris. The removal system makes the cut line more visible to the eyes of the master.

The drill can be easily replaced when cutting holes using a technique called "pocketing". To do this, it is enough to tilt the jigsaw forward, then the tips with a rounded shape will rest on the surface being cut.

Above the line of the future cut, the blade should be positioned with maximum accuracy. You need to lower the support saw horizontally, and then continue to practice.

For such work, first marks are made inside the material, and then, already on them, the tool itself is found. With a square or rectangle shape, the blade is pulled back a little before the master leads the tool to the next side. And so all four are processed.

The use of plunge sawing is permissible if it is impossible to create holes of the required dimensions. The jigsaw for this leans forward until the file reaches the workpiece. Gradually, during this process, a through hole appears.

What else you need to know about working with a jigsaw

Basically, this device is ordinary saw, only equipped with an electric motor. It is recommended to take for carpentry, if necessary, in cutting surfaces with wide, even sides.

In this case, the tool itself remains in place. The movement is organized only by the material that needs processing.

The cut is made with back side, then its characteristics will please.

Machine oil for lubrication is needed if work is being done with metal, tiles.
Cold water should cool the cut line when cutting metal.
Personal protection cannot be ensured without goggles and gloves.
Plastic is processed with an electric jigsaw only from the rear, otherwise it is impossible to obtain an even cut.

A special plate is attached to the base of the jigsaw, it allows you to achieve greater accuracy. This makes the movement of the saw blades across the surface smoother. Any will be cut exactly.

About the types of tools

First of all, they are professional or household. Professional means that the fixture will have more power. It is usually 580-720 watts. But for household ones it is less, only from 320 watts. But this is quite enough for a small amount of work at home.

The higher the power of the tool, the thicker the material it copes with without problems.

Any kind of tool will cope with the creation of holes up to 15 mm. But we must take into account that electric jigsaws, in which 1000 rpm is equal to the lowest speed, will not even cope with plastic.

Jigsaws are sometimes divided into groups depending on how they have a fixed saw. For example, for a shank with a hole, smooth or cruciform. The last two types have become the most common, as they are best suited to home tools.

Design and features

Each jigsaw has a so-called support sole. It always rests on the part to be cut. As a result, the accuracy of the work is noticeably improved.

The soleplate is easy to turn to make bevel cuts. Some manufacturers produce in which the main tool is fixed only at a certain angle.

The file acts as the main cutting tool. Breeding teeth, method of sharpening, size, shape, materials - they literally have their own for each model. 75, 85 and 100 millimeters are the most suitable lengths if you need to cut materials of low density. The step size of the saw also becomes quite an important parameter.

Metal requires a step equal to 12 millimeters.
For wooden products, it is from 2.5 to 4.

About accessories

No special efforts are required to obtain the maximum result. The tool can work as a separate fixture, without any additions. But there are details that can increase the efficiency of a conventional jigsaw.

You can learn how to cut with an electric jigsaw without chips from the video:

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