Do-it-yourself desktop jigsaw machine. Jigsaw machine - do-it-yourself manufacturing options Make a machine from a jigsaw

The idea of ​​\u200b\u200bcreating a homemade electric jigsaw is most often due to the shortcomings that the factory has hand tool. You can make a small desktop machine with your own hands, which will include a pusher, a reciprocating motor, a file tension system. In this case, you do not need complex drawings - having understood the essence, it is easy to achieve a result.

How to make your own setup

The desire to create a homemade jigsaw may arise for several reasons:

1. There is no power supply in the workshop, but it is possible to use low power internal combustion engines.
2. There are pneumatic motors, but the compressor power is not enough for a serial tool.
3. The motor is powered by batteries or solar panels, the power of the source is not enough for the use of a power tool.
4. It is required to obtain saw movement parameters that are unattainable when using a serial tool.

Designing a jigsaw is not difficult. A typical structure looks like this:

The unit can be easily adapted to any torque source. A pair of pulleys (one is located on the motor shaft, the other drives the crank mechanism) allow you to vary the gear ratio, reducing the load on the power unit and allowing you to get the desired speed (they are also responsible for the number of saw strokes per minute) on the actuator.

The machine, built according to the above scheme, can have a very different configuration, the material of manufacture is also selected individually. An example of a finished installation looks like this:

Disadvantages of a manual jigsaw

A manual electric jigsaw is designed to form even cuts. At the same time, as the rollers, rod, and pusher wear out, the saw may be beating and deviate from a straight line, and the angle of attack may change. Regardless of the quality of the tool assemblies, the following features are always present:

1. When the saw becomes blunt, a deviation from a straight line is observed when cutting material of uneven density (for example, low-quality chipboard). The saw is able to leave the cut line, having met a knot in the wood.
2. When trying to make a figured radius cut, one can observe the following picture: the upper cut line, followed by the worker, follows an exact trajectory, the lower one deviates, goes to the side, the radius becomes larger. The higher the wear of the tool and the lower the sharpness of the saw, the more pronounced this phenomenon.
3. Some materials cannot be worked with the pickup or bottom feed of the saw. The carpenter is required to drive the tool forward extremely evenly, which cannot be done very accurately, resulting in a beating of the saw along the entry and exit path.

It is even more difficult to work with thin saws designed for curly cuts. If there is no practice, it is very difficult to achieve a good result, especially on a thick slab or wood materials. Consider how you can make the work of a carpenter easier, and the result better.

Standard Solutions

A manual jigsaw machine is made on the basis of a simple table. This device is common, mass-produced, samples can be seen in the photographs below.

The mechanics of work is simple:

• The jigsaw clearly fixes the tool, ensuring that there is no influence of the human factor (the hand can lead the jigsaw unevenly).
• The presence of a support allows you to move the device without deviations along the trajectory.

With the help of a table, jigsaws begin to cut in a straight line, but the possibilities of such a device are limited. If you remove the side stop and try to guide the workpiece, forming a curved cut, the same problems of saw deflection arise. The problem can be solved by using a simple saw, rigidly fixed with a pair of rollers. Making curly cuts is now convenient and fast. How homemade and industrial products of this type look like is shown in the following photos.

Tensioners for curved cuts

To perform very thin and precise curly cuts, you can make a machine from an electric jigsaw with a saw blade tension system. The idea of ​​\u200b\u200bdoing it yourself is as follows:

1. A very thin saw is used, ideally for a manual jigsaw.
2. A clamp is attached to the rod of the power tool, which will stretch the cutting blade.
3. The trajectory stabilization system will regulate both one freedom of movement and two (horizontal and vertical).

As a tension block, a manual jigsaw clamp is used, to which an adapter is made, which, in turn, is inserted into the clamping device of the power tool rod. To ensure the adjustment of one freedom of movement, a pair of angles and a bolt are used. The result of the implementation of the idea is presented in the following photo.

The saw provides a clear vertical movement, you can create a good tension, but there is a mandatory runout in the horizontal direction. The canvas goes with pickup, it does not move in a straight line.

The development of this idea is in the next photo. Here the part fixing the trajectory moves, and the metal clamp provides structural rigidity and mechanical resistance.

The system is stabilized in two degrees of freedom, the cut made with its help is neat and accurate. Using a diamond-coated cord for a hand jigsaw, you can cut glass without the formation of sloppy chips on the edges.

Devices for extremely fine work

If you need to work extremely delicately and slowly, you will need to reduce the force on the cutting blade and at the same time provide a strong tension and precise movement of the file. To do this, a home-made jigsaw is equipped with spacers with long arms.

In this case, the power tool does not operate in the cut zone, but at some distance. This allows, depending on the wishes of the carpenter, to adjust the force, speed and amplitude of the saw movement. One of the options for implementing the idea is presented in the following photo.

Depending on the needs of the master, the structure can be made of steel, have additional fixing zones, the power tool can not be installed rigidly, but with the possibility of movement within its support beam.

In practice, such solutions are rarely used. For delicate work that is done constantly, it is much more profitable to purchase a specialized band saw that will ensure quality and productivity.

As can be seen from the presented designs, a jigsaw can even be made from a sewing machine with a moving stem.

technika.expert

DIY desktop jigsaw | Construction portal

A desktop jigsaw is an indispensable thing for any owner who is used to doing housework on his own. Especially electric jigsaws are good for residents of the private sector, lovers manual labor and summer vacation. From its prototype, an ordinary manual jigsaw, the desktop electric model has gone far enough. A desktop jigsaw makes it easier and faster to cut, not to mention improving quality.

The concept of desktop jigsaw

The jigsaw is a saw, which is characterized by reciprocating movements of the saw blade, which acts as a working body. It has a ski designed to guide the saw blade when moving over the surface that is being processed, and making movements at a frequency of up to 3000 vibrations per minute.

This tool was invented in 1946. Its creator is Albert Kaufman, who replaced the needle in a sewing machine with a blade. The tool appeared on sale in 1947. The manual electric jigsaw has a body with a flat platform and a handle. The main difference between an electric jigsaw and a manual jigsaw is its greater functionality and cutting quality.

Inside is an electric motor and a special mechanism that drives the blade. IN stationary jigsaws there is no handle, and the platform is located on top. In front of the mechanism there is a guide, in the lower part there is a retractable blade that moves and makes cuts.

The tool works as follows: a table jigsaw file is securely fastened with clips in the slider. Reciprocating movements have a frequency of up to 3000 strokes and can be adjusted. The support platform allows the jigsaw to focus on the part being cut, so the work is carried out very accurately.

The purpose of the desktop jigsaw

The jigsaw is an essential accessory for every workshop and every hobbyist. His thin file can successfully cut plywood, copper, iron, thick boards, brass, steel. Tools can be motorized, foot or hand-operated and are more productive. An electric jigsaw is simply indispensable for carpenters, woodworkers, furniture designers, drywall workers who make complex parts.

An electric jigsaw can perform straight and curved cuts on workpieces with complex shapes and various sheet materials without disturbing the external contour. Most often, desktop jigsaws are used for cutting wood and wooden plates, figures with a complex outline from laminate and drywall, plastic blanks, and also for cutting sheet metal.

The desktop electric jigsaw makes clean cuts of complex shapes and works with fine details. Due to the stable and fixed position during operation, high cutting accuracy is achieved. The file has a stable course thanks to the tension system and guides, which manual jigsaws lack. The large size of the table makes it stable, so that a precisely defined sawing direction is observed.

Types of jigsaws

Today, a wide variety of electric jigsaws are presented on the power tool market, which differ in the nature of the application, technical specifications, type of power supply and design features. In hardware stores you can buy a desktop jigsaw for every taste and budget.

By design features, it is difficult to classify, because each manufacturer seeks to provide its products with features that are designed to facilitate and improve the operation of the tool. In this regard, the shape of the handle is an important parameter.

Two types of handles have settled - mushroom-shaped and D-shaped. A jigsaw with a staple-like handle requires one-handed operation. This increases the possibility of using a jigsaw, but somewhat negatively affects the quality of the material cut.

Mushroom handles allow for more accurate cuts when holding the jigsaw with both hands, after fixing the workpiece to be cut. The choice of a jigsaw with a certain shape of the handle depends on the financial capabilities and personal preferences of the buyer. It is worth choosing the jigsaw with which it will be more convenient to work.

Household jigsaws are not designed for intensive use, but the low price of a desktop jigsaw and the power that is enough for household needs, make them indispensable in household.

Professional jigsaws are characterized by high wear resistance and the possibility of many hours of daily use (up to 8 hours). The significant power of such jigsaws allows you to process materials of great thickness. Extended equipment and improved features are reflected in the price.

Among professional jigsaws, industrial ones also stand out, which are characterized by greater adaptability to complex operations and drive features - for example, increased power supply voltage. Industrial models are machines that are designed for the woodworking industry.

By type of power supply, there are network and battery electric jigsaws. Network models are powered by a standard voltage power supply. If performance is important to you, then you should choose mains power tool.

Cordless jigsaws provide independence from the presence of sockets and greater mobility during work. When buying a battery model, you should pay attention to the type of battery. Increased performance is inherent in lithium-ion batteries. Battery capacity is responsible for the duration of work without recharging.

Advantages of desktop jigsaws

The desktop electric jigsaw is a stationary design, so this type of cutting tool has many advantages. Modern models can work with wooden materials 40-50 mm thick. A narrow saw acts as a working body, which performs vertical reciprocating movements. Due to the peculiarities of the notching of the teeth and the mechanics of the movements of the file, the material is cut out by moving upwards.

Desktop electric jigsaw allows you to cut complex decorative details, to make longitudinal, straight, oblique and transverse cuts. The wide tabletop allows you to process large parts and make cuts inside wide workpieces. Reliable fastening protects the body from unnecessary vibrations and allows you to well position the material, so the motor can work without overloading.

The advantages of desktop jigsaws include good accuracy and clarity of cuts, high safety and ease of use, wide customization options for the material and the required detail of the cut workpieces.

If you need to cut small parts, a manual jigsaw will not be very convenient. It is quite heavy, so you have to hold it with one hand and guide the workpiece with the other. And the desktop jigsaw is devoid of this drawback. Perhaps the inconveniences are too large sizes and the difficulty of working with large details.

The desktop jigsaw is a kind of mini-machine for cutting workpieces. If you buy a jigsaw in a store, most likely there will be an opportunity to select the power and adjust the frequency of the saw strokes. However, you can make the simplest homemade desktop jigsaw, and very quickly. You will need a manual jigsaw, a few screws, a piece of plywood small size and only one hour of work.

Making a desktop jigsaw

A carefully made jigsaw will not be inferior to a factory-made one, and in some respects even surpasses it. It is not difficult to assemble such an electric jigsaw if there is necessary materials. Next, we describe a simple circuit such manipulations.

The design of the jigsaw includes the following components: a handle, a switch button, an insulating washer, a power cord, a frame, a heating thread, a screw clamp and an earring. First you need to make a frame. You will need a duralumin pipe with an outer diameter of up to twelve millimeters.

You can also use textolite with a thickness of at least ten millimeters or thick plywood for the base. But keep in mind, the lighter the frame, the more convenient the jigsaw will be to use. Be sure to provide a channel so that you can later lay the power cord. The best shape of the frame is the one with one of the sides deviated by 45 degrees.

Next, you need to make an earring. It is made of copper sheet with a thickness of one millimeter. After that, it is fastened with screws to the frame, where it connects to the handle. Thus, the screw, wing nut and earring will form a clamp in which the heating thread can be fixed. The thickness of the duralumin sheet should be up to 0.8 millimeters. It is necessary to make clamping cheeks from it, between which there is a button-switch.

After that, you need to cut a gap in the plywood through which the file can pass. It can be done with a drill. To do this, it is necessary to drill holes along the marking line, and smooth the transitions. Instead of plywood, you can use plastic, metal, plexiglass and others. Next, you place and drill mounting holes on the plywood and the base plate of the jigsaw.

Then you need to fix the jigsaw with screws on the plywood base so that the file can pass through the gap. You attach the structure to the table with a clamp so that the file is pointing up. You can also secure the platform with any accessible way. The jigsaw file remains conventional, but the possibilities for good sawing are expanded by freeing up the hands.

You can use a nichrome coil from any household heating device (for example, an iron) as a heating filament. It must be secured with tension between the ends of the frame bends. To heat up the thread, you need to apply a tension of about 14 V. To control the operating mode, you can use a rheostat.

The current is determined by the thickness and length of the nichrome filament. With the help of a rheostat, it will be possible to set the optimal current strength (no more than 3-5 A), which will affect the temperature to which the thread is heated. Before starting work, it is necessary to determine the current strength. But keep in mind, if too high strength the cut material can be caught by the flame, and if it is insufficient, it will not be taken. A do-it-yourself desktop jigsaw will allow you to cut out figures with complex contours from different kind materials.

Rules for using a desktop jigsaw

When working with a desktop jigsaw, you must adhere to some rules:

1. While cutting, do not press hard on the tool, otherwise, at best, the needle will break, at worst, you will spoil the work.
2. Change blades from time to time. An old saw can spoil and destroy the surface of the material.
3. If you work with organic glass and non-ferrous alloys, the surface of the product must be moistened with water. Such an operation will speed up the process and extend the life of the saw.
4. If you are cutting a surface with a thickness of less than one millimeter, place a sheet of wood or plywood under the material being processed.
5. Before cutting, it is necessary to fix the material. It is better not to make long cuts by hand, the line may turn out to be crooked.
6. For cutting different materials appropriate blades are needed, with a special pitch and length.
7. Rotate the tool by turning only the back of the tool.
8. When cutting the laminate, an adhesive tape is glued to the cut line, which protects the material from chipping.
9. If the need arises for curved cuts, set the jigsaw pendulum to a minimum.

If you have not yet fully understood how to make a desktop electric jigsaw, watch a video about this procedure. This tool allows you to cut complex parts from wood and other materials, to make longitudinal, oblique, straight and transverse cuts. With the help of an electric jigsaw, you can process large parts, wide workpieces and small products, which is not superfluous at home.

strport.ru

wood jigsaw

For slotted carving and sawing small parts from wood, plywood, plexiglass, plastics and other materials, jigsaws of various designs and types are used. It can be manual ("pioneer"), mechanical and electric jigsaws. Various magazines cited diagrams of home-made jigsaws driven by electric motors and even electric drills. But with the advent of the sale of manual electric jigsaws, it became possible to both install them on a table for cutting large parts, and use them as a drive for jigsaws for cutting small parts. The manual jigsaw is well balanced, powerful enough and has a speed control, which greatly expands the possibilities of its application.

Still, in my opinion, the electric jigsaw has a significant drawback, this is the inability to adjust the amplitude of the stroke of the nail file. But I dealt with this shortcoming by making a file stroke regulator.

The basis for the manufacture of the machine was taken from the version printed in Wood magazine No. 12 1986.

The dimensions of the rockers were chosen based on own needs. It should be borne in mind that by increasing the length, we will increase the size of the workpiece, this is a plus. But at the same time, we will increase the vibration of the file, as well as the mass of the rocker arms, which will lead to an increase in the vibration of the entire machine, and this is a minus. Therefore, we make the length no more than necessary. An increase in the rear of the rocker arms will lead to easier file tension, but again, to an increase in mass and, accordingly, vibration. There is an opinion that by balancing the rocker relative to the swing axis, it is possible to reduce the vibration of the machine. In my opinion, this is not correct.

Vibration can be reduced by reducing the mass of the rocker arm as much as possible. But at the same time it is necessary that it remains rigid, and can withstand heavy loads.

For tensioning, it is convenient to use eccentric clamps from a bicycle. The tension of the nail file should be implemented through a rigid spring. It will help reduce the number of nail file breaks.

The attachment of the file should quickly and securely fix the files different sizes.

The slats on which the rocker arms are attached must be securely connected to each other in order to reduce vibration.

The entire structure of the machine must be rigid and reliable. Management must be in convenient location.

I will answer all your questions.

I wish you successful crafts.

shenrok.blogspot.ru

instrument.guru > DIY > using drawings

With the help of a homemade jigsaw, anyone can make furniture, modern comfortable shelves and other wood products. Its mechanism helps cut wooden details absolutely any form. And also with its help it is possible to process plastic and other dense materials. In order for the jigsaw to comply with all norms and rules, you need to carefully approach the choice of its design. Additionally, drawings from the network will help to make a jigsaw machine with your own hands.

• How to make a jigsaw machine with your own hands

The design of jigsaw machines

Absolutely any electric homemade jigsaw contains the following parts:

• drive unit;
• connecting rod assembly;
• saw;
• work surface;
• saw tension mechanism;
• additional mechanisms.

The material to be processed should be laid on the work surface. Many models are equipped with a rotary mechanism that changes the inclination of the cutting surface. In order to facilitate the application of markings on the processed material, graduation is applied to the working surface. It is worth choosing a jigsaw machine with big size desktop, because it will make the longest cut. Basically, for most models of electric jigsaws, this indicator is about 35 centimeters. Optimum Power a drive for a do-it-yourself jigsaw machine is no more than 200 watts.

The crank assembly mechanism is able to convert the rotation of the drive into translational motion and transmits it to the saw. The optimal frequency of the saw movement per minute is about 900, and the amplitude of the vertical movement should not exceed 6 centimeters.

Many types of electric jigsaws are equipped with a speed controller, which allows you to adjust depending on the type of material. A jigsaw file is capable of processing wood and plastic up to 12 centimeters thick, with a length of up to 40 centimeters. To work with various materials, files can be changed, their width ranges from 2 to 12 millimeters. The manual tension mechanism secures the blade for a smooth cut. Its role is performed by spring or helical springs.

The main types of jigsaw machines

All electric jigsaw machines are usually divided according to the following criteria:

The most popular are electric jigsaws with a lower support, in which the bed is divided into upper and lower parts. The first contains the cleaning and cutting modules, and the second contains the electric motor, controller module, switching and transmission mechanisms. These machines can process absolutely any sheets of material.

Double caliper jigsaws have a major difference. It lies in the fact that in the upper part of the bed there is another rail. Such equipment is well suited for the manufacture of oversized products. Such devices are very easy to install and allow you to process products with a thickness of not more than 9 centimeters. Additionally, the machine comes with a convenient desktop with adjustable height and angles.

Suspended jigsaws are not equipped with a stationary frame and have great mobility. When performing work, the cutting module moves, not the material being processed. The working module itself is fixed on the ceiling on its own, which is why the size of the workpiece does not matter. The cutting mechanism moves with its own hands, regardless of the bed. In this case, it becomes possible to make a wide variety of patterns.

Electric jigsaws with stops and a degree scale are ideal for the most precise work with the help of drawings. Their design helps to avoid errors during operation. Universal type jigsaws are capable of doing several types of work. This is, first of all, cutting, grinding, polishing, drilling and many others.

How to make a jigsaw machine with your own hands

When developing a drawing for a homemade jigsaw machine, the total number of elements must be reduced to a minimum. A saw with a fixed rocking chair, an electric motor and a bed is enough. If desired, a motor from any electric machine is suitable. Much more fortunate are people who own a manual jigsaw. It is necessary to make a special stand from a plywood sheet and fix a jigsaw on it. To fix it, it is worth making holes in the base of the jigsaw. Thus, the simplest jigsaw machine can be considered ready.

Next, it is worth talking about more functional and complex models devices that you can do with your own hands. A home-made frame is made from a sheet of plywood 12 millimeters thick, textolite or plastic. Such a bed is a working surface, the base of the machine and a special box for the location of various mechanisms and an electric motor.

On the reverse side, it is necessary to place an eccentric with a rocking chair, which must be connected with a metal plate with bearings and bushings. This whole structure must be fixed with screws. To install the intermediate shaft, you need to find several bearings. A special metal pulley fits quite tightly onto the shaft, and the screw connector is securely fastened. Similarly, you need to make a homemade eccentric for the device.

In order to change the frequency of movement of the rocking chair, it is necessary to make several through holes on the installed flange and cut threads into them. They must be removed from the central axis at different distances. By changing the place where the screw is screwed in, it is possible to adjust the amplitude of movement of the rocking chair, which consists of several wooden yokes attached to the rack with hinges. The ends of the rocker arms have through cuts into which tension screws are inserted. A file is attached to the other ends, moving with the help of metal hinges. For fixing, the file is installed in a special groove of the working surface.

The saw blade attachment can be considered the most important. When assembling a jigsaw machine with your own hands, this part should be given great attention. The plates inserted into the rocker arms carry a huge load during operation, which is why they need to be strengthened and tightened with fasteners with high quality. The two tie-down earrings do not need to be tightly compressed with screws, which will allow the axle hinges to move.

The rocker arm mechanism is best made from solid material. On one side, you need to make a groove for the rocker, and on the other, you need to cut a rectangular opening for the second rocker. In order to make it easier to make holes, it is worth folding the rack from several parts.

A jigsaw machine is a special device that is designed to perform work on sawing wood, its derivatives, as well as other materials (for example: plastic, drywall sheets, polystyrene, and so on) along curved contours and straight lines.

Depending on the power of the electric drive, it can be divided into two types:

• power up to 150 W;
• power over 150 watts.

Machines with a power of up to 150 W are used mainly at home, to work on the manufacture of various crafts from materials of medium and low density and thickness.

Machine tools with drive power over 150W are mainly used in industrial environment, when working with hardwoods and other materials. Such jigsaw machines allow you to work with a material thickness of up to 10 centimeters.

For home and semi-professional use, in order to save money, you can make a homemade jigsaw. This will require the presence of initial knowledge in plumbing and electrical engineering, as well as a small amount of hand tools.

Making a homemade jigsaw

In order to make a jigsaw machine with your own hands, you will need:

• eight wooden planks for making a frame;
• a sheet of thick plywood for the countertop;
• several metal corners, welding machine;
• electric jigsaw;
• accessories for fasteners, drill.

1) We start the design of the machine from the frame. The frame will require wooden bars square section 50*50 mm. For support posts, four beams 250 mm long are used.

For longitudinal connecting beams, bars with a length of 380 mm are used. End connecting beams have a length of 250mm. All bars are interconnected using conventional wood screws.

2) We make a countertop. We take plywood for the countertop, in this situation we should be guided by the principle: the thicker the better. Normal can be considered a sheet of plywood 10mm thick. The sheet is cut to the dimensions of the frame so that the edges and corners protrude 5 centimeters beyond the edge.

After that, on the plywood board, the attachment points of the legs and the jigsaw itself should be noted. Holes are drilled according to the marking so that the self-tapping screw falls in the center of the leg.

In the markings for the jigsaw, you should transfer the attachment points and drill holes. A hole for the saw blade is also pre-cut. We fasten the table top with self-tapping screws to the frame.

3) The next step is to install the jigsaw under the countertop. To do this, the entire rack structure is turned over onto the countertop cover.

The electric jigsaw is installed according to the markup and bolted to the countertop. At this stage, one must not forget that the canvas must already be installed and occupy the position provided for it with a margin for the hole.

At this stage, you will need a welding machine to make a fixing structure. It will require four corners. Bottom bar 50*50mm with two holes for bolts. A 200mm long corner is attached to it. Next, a corner with a size of 230 mm (selected for each case individually, depending on the distance from the edge of the tabletop to the canvas).

The descent to the canvas is carried out from a corner 150 mm long, to which a wheel from a jigsaw is attached. This design absorbs all the vibration from the web and prevents breakage. The whole structure is attached to the tabletop with two bolts. They should not loosen from vibration.

The work on the manufacture of the jigsaw machine is over, the machine is ready for full operation.

Video: do-it-yourself jigsaw machine.

What to do when you need a jigsaw, but there is no need to buy it? You can make a jigsaw with your own hands. There are many ways to make or repair such a tool. Consider the simplest and most accessible of them.

Manual jigsaw - simple, fast and affordable

How to make a jigsaw quickly from available and inexpensive materials? Here is the easiest way.

List of tools and materials:

• plywood sheet (10 mm);
• plywood sheet (4 mm);
• steel sheet (2 mm);
• bolts and nuts;
• drill;
• chisel;
• sanding paper;
• file.

The base of the manual jigsaw is a bracket, it should be prepared from a plywood sheet (10 mm). Further, it is recommended to make thickenings for the tool handle from thinner plywood (4 mm). These thickenings must be glued to the handle on both sides, which will provide more convenient in the future. The bracket and handle are well processed with sanding paper and a file. It is necessary to cut out the steel plate with a chisel, and then clean the clamping jaws with a file. After that, drill slots in the jaws with a drill, and then cut out notches inside the clamping jaws with a sharp chisel. In the left clamping jaw, modify the slot for the bolt, for this you need to make a thread. Attach the jaws to the bracket, then screw the bolts into the left clamp, securing them with nuts.

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Desktop jigsaw: two manufacturing options

A desktop fixture can be made both new and with the help of refinement or repair of improvised means.

Making a new desktop mechanical jigsaw will require the following tools and materials:

• duralumin pipe;
• plastic base;
• clamps;
• screws;
• copper sheet;
• drill.

First you need to prepare the frame, for this purpose it is better to use an duralumin pipe. In the manufacture of the frame, it is necessary to provide a passage through which a cord will be laid to provide power. The copper sheet should be taken for the manufacture of a U-shaped frame, which subsequently will need to be attached to the frame itself. At the junction of the frame with the handle of the jigsaw, screw the frame with screws. In the plastic base, drill a hole for the file with a drill, as well as slots for fasteners. On the prepared plastic, fix the jigsaw so that the file passes through the hole. Using clamps, attach the finished tool to a flat surface, such as a table.

A hand-held device based on sewing machine, This perfect option if repairing a sewing machine is not as important as making such a tool. List of tools and materials:

• sewing machine (both foot and manual models can be used);
• file;
• file;
• drill.

Having unscrewed the bolts at the bottom of the sewing machine, you should remove the entire thread handling system. Next, knock out the metal fixing rod and remove the drive shaft of the threading system. The panel covering the parts of the sewing machine can be easily removed by unscrewing 2 more bolts. Carefully remove the needle. The needle slot needs a little repair - it should be widened so that a file can be placed in it. To do this, it is better to cut the hole with a needle file, focusing on the size of the file itself. After that, adjust its size to the maximum possible size of the needle by cutting off the upper part of the file. After grinding the upper teeth with a file, and the lower part on the tip, you can proceed to the next step. The prepared file must be put in place of the former needle - in the needle holder. After that, turn the wheel and check:

• so that the saw does not come into contact with the panel and with the presser foot;
• so that in the upper position the plywood passes freely under the saw;
• so that the material flows smoothly.

Such a jigsaw is suitable for working with plywood, balsa wood and plastic materials, and if you use an electric machine, you get an electric jigsaw.

The idea of ​​\u200b\u200bcreating a homemade jigsaw is most often due to the shortcomings that a factory hand tool has. You can make a small desktop machine with your own hands, which will include a pusher, a reciprocating motor, a file tension system. In this case, you do not need complex drawings - having understood the essence, it is easy to achieve a result.

The desire to create a homemade jigsaw may arise for several reasons:

1. There is no power supply in the workshop, but it is possible to use low power internal combustion engines.
2. There are pneumatic motors, but the compressor power is not enough for a serial tool.
3. The electric motor is powered by batteries or solar panels, the power of the source is not enough for the use of power tools.
4. It is required to obtain saw movement parameters that are unattainable when using a serial tool.

Designing a jigsaw is not difficult. A typical structure looks like this:

The unit can be easily adapted to any torque source. A pair of pulleys (one is located on the motor shaft, the other drives the crank mechanism) allow you to vary the gear ratio, reducing the load on the power unit and allowing you to get the desired speed (they are also responsible for the number of saw strokes per minute) on the actuator.

A machine built according to the above scheme may have most different configuration, the material of manufacture is also selected individually. An example of a finished installation looks like this:

Disadvantages of a manual jigsaw

Manual electric jigsaw is designed to form even cuts. At the same time, as the rollers, rod, and pusher wear out, the saw may be beating and deviate from a straight line, and the angle of attack may change. Regardless of the quality of the tool assemblies, the following features are always present:

1. When the saw becomes blunt, a deviation from a straight line is observed when cutting material of uneven density (for example, low-quality chipboard). The saw is able to leave the cut line, having met a knot in the wood.
2. When trying to make a figured radius cut, one can observe the following picture: the upper cut line, followed by the worker, follows an exact trajectory, the lower one deviates, goes to the side, the radius becomes larger. The higher the wear of the tool and the lower the sharpness of the saw, the more pronounced this phenomenon.
3. Some materials cannot be worked with the pickup or bottom feed of the saw. The carpenter is required to drive the tool forward extremely evenly, which cannot be done very accurately, resulting in a beating of the saw along the entry and exit path.

It is even more difficult to work with thin saws designed for curly cuts. If there is no practice, it is very difficult to achieve a good result, especially on a thick slab or wood materials. Consider how you can make the work of a carpenter easier, and the result better.

Standard Solutions

The machine is made from a manual electric jigsaw based on a simple table. This device is common, mass-produced, samples can be seen in the photographs below.

The mechanics of work is simple:

• The jigsaw clearly fixes the tool, ensuring that there is no influence of the human factor (the hand can lead the jigsaw unevenly).
• The presence of a support allows you to move the device without deviations along the trajectory.

With the help of a table, jigsaws begin to cut in a straight line, but the possibilities of such a device are limited. If you remove the side stop and try to guide the workpiece, forming a curved cut, the same problems of saw deflection arise. The problem can be solved by using a simple saw, rigidly fixed with a pair of rollers. Making curly cuts is now convenient and fast. How homemade and industrial products of this type look like is shown in the following photos.

Tensioners for curved cuts

To perform very thin and precise curly cuts, you can make a machine from an electric jigsaw with a saw blade tension system. The idea of ​​\u200b\u200bdoing it yourself is as follows:

1. A very thin saw is used, ideally for a manual jigsaw.
2. A clamp is attached to the rod of the power tool, which will stretch the cutting blade.
3. The trajectory stabilization system will regulate both one freedom of movement and two (horizontal and vertical).

Used as tension block hand jigsaw clamp, to which an adapter is made, which in turn is inserted into the clamping fixture of the power tool rod. To ensure the adjustment of one freedom of movement, a pair of angles and a bolt are used. The result of the implementation of the idea is presented in the following photo.

The saw provides a clear vertical movement, you can create a good tension, but there is a mandatory runout in the horizontal direction. The canvas goes with pickup, it does not move in a straight line.

The development of this idea is in the next photo. Here the part fixing the trajectory moves, and the metal clamp provides structural rigidity and mechanical resistance.

The system is stabilized in two degrees of freedom, the cut made with its help is neat and accurate. Using a diamond-coated cord for a hand jigsaw, you can cut glass without the formation of sloppy chips on the edges.

Devices for extremely fine work

If you need to work extremely delicately and slowly, you will need to reduce the force on the cutting blade and at the same time provide a strong tension and precise movement of the file. To do this, a homemade jigsaw is equipped spacers with long shoulders.

In this case, the power tool does not operate in the cut zone, but at some distance. This allows, depending on the wishes of the carpenter, to adjust the force, speed and amplitude of the saw movement. One of the options for implementing the idea is presented in the following photo.

Depending on the needs of the master, the structure can be made of steel, have additional fixing zones, the power tool can not be installed rigidly, but with the possibility of movement within its support beam.

In practice, such solutions are rarely used. For delicate work that is done constantly, it is much more profitable to purchase a specialized band saw that will ensure quality and productivity.

As can be seen from the presented designs, a jigsaw can even be made from a sewing machine with a moving stem.

A desktop jigsaw is useful for every craftsman who cuts out thin details. However, it is far from always possible and meaningful to acquire a full-fledged machine. In this case, get down to business and do it yourself!

The device of the jigsaw machine - what lies inside?

Jigsaw machines are more about special tools than about devices that are needed as experienced master, and the amateur hosting in the garage. Their purpose is reduced to a special task, namely, cutting out complex curvilinear contours from sheet materials. A special “chip” of such machines can also be attributed to the execution of the cut without violating the integrity of the external contour. Most often, sawing occurs on wood and derived materials (plywood, chipboard, fiberboard), although modern machines equipped with appropriate nail files are able to work with other materials, such as plastic or drywall.

Such equipment has found application in the music industry (manufacturing of musical instruments) and, of course, in the furniture industry. They buy such units and lovers of tinkering in their own workshop. The device of a traditional jigsaw machine, designed in accordance with all the rules, is as follows: the working surface on which the saw is placed hides the drive (electric motor) and the crank structure underneath. The tension mechanism can be located both below and above the machine.

To process a part, it must be placed on the desktop. Many models have the ability to turn it at different angles to make bevel cuts. The stops and guides on the surface, as well as the swivel mechanism, can be marked, which greatly simplifies and speeds up the work. It is the length of the cut that depends on the length of the desktop - most models are limited to 30-40 cm. The power of the electric motor is an important, but still far from the most fundamental factor, since the machine has a huge margin of unclaimed power. For example, for a home workshop or even a small production, a “engine” of only 150 watts is enough.

The crank mechanism is a much more important detail, because in this case it depends on it the quality of the transmission of the torque of the drive into the forward-return motion directed to vertical plane by means of a saw.

Standard jigsaw machines are considered devices with a range of motion in the region of 3-5 cm at an oscillation frequency of up to 1000 per minute. In many models, a change in speed mode is provided for different materials. The jigsaw itself is usually made up to 35 cm long and is able to cut material up to 10 cm thick. The width of the nail files can vary over a fairly wide range - from very thin two-millimeter to coarser ten-millimeter ones, with a thickness of 0.6 mm to 1.25 mm.

Even the thickest and widest nail file will easily break if you do not provide sufficient tension along the entire length of the nail file. For this, spring and helical springs are used. Quite often, such machines are equipped with air pump, which cleans the cut from sawdust by blowing, as well as a drilling block. The latter device is especially useful, because in this case the master does not need to be distracted by connecting an electric drill and drilling a hole - everything happens on the working plane of the machine. Of course, you have to pay for convenience!

How to make a jigsaw machine with your own hands from a manual jigsaw?

On the web you will find many different designs homemade machines, but most of them come down to reprofiling into this machine. Using your ingenuity and watching the video, you can easily make a homemade jigsaw machine from this tool. You only need to modify the jigsaw a little. In fact, it plays the role of a machine tool drive and a crank mechanism, the rest needs to be thought out and implemented.

Of course, manufacturers are trying to please consumers in this area as well, offering their own platform options for quick and convenient rework, however, in reality, only you can make an apparatus that meets your needs. So, the first step is to make a support table, for which sheet metal is most often used. In it you need to make a slanted oblong hole for the saw blade and holes for fasteners (countersunk screws are recommended), and attach the jigsaw to the bottom of the support table.

This design can only be strengthened on a wooden table. You can go beyond this and install guide rails. The convenience of such an apparatus lies in the fact that in addition to performing functions that are not entirely inherent in it, you can always disconnect the drive and with a flick of the wrist turn it back into a manual electric jigsaw! If you constantly need this tool for work, it makes sense specifically for the machine - it will be cheaper than spending money on a real machine.

Advantages and disadvantages - we continue to modify!

But such an assembly inherits not only the advantages of the tool, but also its disadvantages, in particular, a nail file that is too wide for filigree work, which significantly limits the curvature of the lines. If there is a need for this, there is a way out. So far, our machine differs from the classic jigsaw unit by the absence of springs that would provide sufficient tension for the nail file. But to build a simple rocker, which on the one hand will be under the tension of the springs, and on the other hand fixed on a nail file, is quite easy.

There is another option - to clamp the nail file between two guide rollers, but the first option is still more reliable. Remember to turn off the pendulum motion on the jigsaw before you start using it. homemade machine. There is another design - if your tool is powerful enough, then it can only serve as a drive in a design of two rocker arms, between which a nail file is stretched. The movement is transmitted by means of a nail file fixed on the lower rocker arm.

Machine from a sewing machine - we give a second life to old tools!

If you inherited from your grandmother or mother got a foot or hand sewing machine, consider yourself the owner of an excellent jigsaw machine! Of course, for this you need to “conjure” a little over the machine. First, remove the thread weaving device, which is usually located at the bottom of the machine. There is nothing complicated in this, it is enough to unscrew the two bolts. Then we knock out the cotter pin and remove the drive shaft leading to the thread weaving mechanism.

Having unscrewed the top panel that protects the mechanisms, it is necessary to expand the slot in which the needle went. Focus on the needs and width of the nail file that you will use in your work. Jigsaw blades of this kind also need to be slightly modified, namely cut under maximum length needles that could be used on this machine. After grinding off the upper teeth and sharpening the lower part on the point, you just have to insert the nail file into the needle holder and test your machine in action!