DIY jigsaw from a sewing machine: jigsaw, how to make?

Home craftsmen perform a large number of jobs that require cutting boards or sheet materials. Cutting or sawing out various curved shapes is possible only with the help of a special tool - a jigsaw. There are different types of such tools, but they are all based on a single principle - the reciprocating movement of the cutting tool.

To mechanize the work, special hand-held jigsaws or jigsaw machines have been developed. They provide significant assistance to many craftsmen in making their work easier and faster. Purchasing a ready-made machine is expensive and not always advisable - most of the time it will sit idle in vain. However, it is possible to make such a machine yourself. There is an interesting design option for a jigsaw made from a sewing machine. Let's take a closer look at this idea.

Sewing machine as a jigsaw

The heir to a grandparent's estate often gets an old sewing machine.
It has already served its purpose for sewing clothes, since more precise equipment is now being produced. If you don’t have a jigsaw on your household, you don’t have to spend money on buying one. It is made with your own hands from a sewing machine. Procedure:

Remove the thread weaving device. It is usually located at the bottom of the machine and secured with two bolts. Dismantle the cotter pin and the drive shaft, which leads to the thread weaving mechanism. Unscrew the top panel, which serves as protection for the mechanisms. The slot for the needle is expanded to match the parameters of the file

It is important that it passes freely through the hole and that there is still a backlog of 2-3 cases. The file is being modernized. For installation in a needle holder, the length of the file should not exceed the permissible length of the needle intended for installation in the machine

To do this, the upper teeth are ground off, and the lower part is sharpened like a point.

Now the jigsaw for curly cutting on plywood is ready. It will be more difficult to work with a manual drive because your legs will get tired. An additional disadvantage will be vibrations from force on the tool. The electric drive of the machine, converted into a jigsaw, partially solves the problem of vibrations.

An expensive jigsaw can be replaced with a homemade design. It will not be inferior to anything in terms of quality and functionality if you approach the assembly process responsibly

It is important to make high-quality plywood mechanisms that serve as a support table. It is desirable that the table be able to rotate

For the version with a sewing machine, this will not be possible. If desired, markings are applied to the table to make it easier to measure parts during work.

Modernization process

A manual jigsaw as the main device for a machine has disadvantages. The main problem is the file - it is too wide in manual models. Because of this, fine woodwork is difficult to perform with it - the curvature of the lines is limited.

The previous design is simple and does not have additional parts that make working with wood easier. The direction of modernization is the possibility of replacing the file with a thin one.

Options for improving the design:

Build a rocker. The structure will be tensioned by springs on one side. The second side of the rocker is fixed to the file.
Secure the file between two rollers. They serve as guides for the thin file.
A stationary factory device is used as a drive for a system of two rocker arms. A file is pulled between the latter. The movement is transmitted from the factory device to the lower beam of the saw.

When buying or making it yourself, you have to choose a design based on personal preferences and the desire to tinker with technology.
Using guide rollers is a less popular option - its reliability is poor. Modernization by installing rocker arms is common. It is better that the factory device only serves as a drive for the jigsaw file. To do this, you need to turn off the pendulum stroke in the tool.

DIY jigsaw from a sewing machine (6 photos)

Those who do figure cutting will probably find a homemade jigsaw from a sewing machine useful. In this case, it is best to use an old sewing machine with a working mechanism. Today on the Internet you can find many diagrams and drawings of similar devices on this topic, they all have practically the same design.

If a sewing machine is taken as the basis for making a jigsaw, then all that is left from it is a flywheel with a groove for transmitting torque and a vertical rod, the one used to attach the needle. Plus, the design is complemented by a small electric motor, on the shaft of which a pulley and a gear belt are installed. A little history about the jigsaw The first mention of the jigsaw dates back to 1946. It was then that the famous Swiss engineer Albert Kaufmann came up with a brilliant idea to replace the needle in a sewing machine with a small file

In that century, this invention received considerable popularity and public attention. Of course, modern jigsaws have a fundamentally different design: they are lightweight, mobile, and also have more power

As for a jigsaw from a sewing machine, this option will be useful only when cutting out shapes from plywood, and not for cutting chipboard and thick boards. How to make a jigsaw from a sewing machine with your own hands The design of a homemade jigsaw from a sewing machine is quite simple, it consists from the following parts: The base on which the sewing machine is installed; An electric motor that transmits torque via a belt drive; Crank mechanism; A movable frame with a file (you can refuse to make it); Springs. The advantage of this kind of homemade work from a sewing machine is that it minimizes rework. For example, the crank mechanism of a sewing machine is already connected to a movable mount, through which the needle is fixed. The mount itself can be easily modified to accommodate the installation of a jigsaw file or any other suitable size. Let's look at a clear example of how you can remake a Soviet sewing machine to suit the needs of figure sawing. To make this homemade product, you will need: Sewing machine; Bolt and nut; A metal plate with a spring to make a tension device (in some cases this may not be necessary); Two metal corners. The above components, if necessary, can be replaced with others, as well as the design of the jigsaw itself. To complete all the work, you will need the following tools: Drill with metal drills; Screwdriver and pliers; Bulgarian; Tap for cutting internal threads First of all, it is recommended to remove all unused parts from the sewing machine, leaving only the crank mechanism with the needle holder in its place. To install a saw tension device on a future jigsaw, you will have to dismantle the shuttle mechanism of the sewing machine

An important note: if an electric motor is already installed in the sewing machine, then you should not get rid of it, since it will be used as the main drive. To install a thin saw on a sewing machine, it will be enough to drill a small hole in the upper mount

To install a wider blade, the hole must be drilled to a suitable diameter. When making the lower fastening, you can use a regular bolt and nut. To make a hole in a nut for a bolt, you should use a tap whose diameter should match the diameter of the bolt. At this point, the modification of the sewing machine is almost complete. In order not to carry out figure cutting manually, an electric motor (45-50 W) should be installed on the side of the sewing machine pulley, on the shaft of which a pulley will also be attached. To transmit torque, you will need to connect the electric motor pulley to the sewing machine pulley using a belt.

Material taken: Here

The working principle of a jigsaw machine

Before you start studying the manual for assembling your own stationary cutting machine, you should delve into its structure and a little about the history of its origin.

The first electric jigsaw machine was born in 1946, when engineer Albert Kaufmann had the idea to replace the sewing machine needle with a thin file. For its time, the invention was very original and received well-deserved public attention. She was engaged in the production and sale of jigsaw machines until she was purchased in 1954. Today, the patents for the invention have long expired and a wide variety of companies have begun to manufacture jigsaws.

Modern stationary jigsaws are functional devices assembled from precise and reliable parts. At first glance, the models on sale may seem incredibly complicated to manufacture, but they are based on the same old principle of operation, albeit with a more optimized mechanism. By assembling a jigsaw from a sewing machine, we are essentially returning to the origins of this invention, partially complementing it with modern technologies.

The design itself, which tensions and drives the saw blade, is quite simple and consists of a special frame and a crank mechanism. The movable frame consists of upper and lower arms of equal length, attached to the rack. A file is installed on the front side of the frame, and on the opposite side there is a spring that performs tension. The crank mechanism connected to the motor causes the saw to move up and down. A more visual and detailed embodiment of the above process can be seen in the following drawing.

How to make a machine from a sewing machine?

A sewing machine makes an excellent jigsaw, which is equipped with a saw blade movement regulator. It is not difficult to do if you follow these instructions:

The thread weaving mechanism is removed from the bottom of the machine. On some models it may be located in a different location.
To dismantle this unit, you need to remove several bolts, then remove the cotter pin and drive shaft.
The top protective panel is unscrewed. After this, the groove along which the sewing needle moves must be expanded to suit the parameters of the file.
The cutting element itself is also slightly modified. It is trimmed according to the length of the sewing needle.
It is not necessary to make an adapter to install the cutting element. Instead, you can grind down the upper incisors a little and process the lower zone of the blade.
The file is inserted into the needle holder and work begins.

All presented options for manufacturing jigsaw machines are very successful. The resulting units are distinguished by high labor productivity, and making them is not at all difficult. Depending on their skills, each master will be able to choose the best model of homemade equipment.

Video: Jigsaw from a sewing machine

In the life of a home craftsman, from time to time the need arises to make figured and simply decorative cuts, including inside the workpiece. Gasoline, circular and conventional hand saws cannot cope with this task due to their design features. To solve this problem, use a manual jigsaw, specially designed for performing such operations. This tool undoubtedly copes with its task, but when working with large volumes or dimensional materials, it definitely loses to its more professional brother - a jigsaw.

Purchasing a brand new, shiny, and functional benchtop jigsaw is absolutely effortless. Store shelves are filled with products from various manufacturers aimed at professional and amateur work. At first glance, the stationary jigsaws on sale seem to be very complex in terms of design, the assembly of which is carried out only by selected expert technicians. In fact, these are quite simple devices that you can make yourself, if you have the desire and step-by-step instructions. And if the first point depends only on you, we will definitely help with the second and provide detailed instructions on how to independently assemble a homemade jigsaw machine.

Design and characteristics of a standard machine

A factory-made jigsaw is a reliable device, the operation of which is guaranteed by the manufacturer.
Manual models are low cost. Stationary devices are expensive, but provide proper comfort when processing wood. The set of components in the device is largely the same for everyone. The design consists of the following parts:

Files.
Crank assembly.
Drive.
Devices for tensioning the file.
Work table or bed.
Additionally, auxiliary mechanisms may be present.

The part to be processed is placed on the work table. The size of the workpiece depends on its dimensions. Some models have a rotary table, which makes working with the part easier and improves visibility. The presence of graduations makes it easier to mark the material.

Average characteristics of factory machines:

The table size ranges from 30 to 40 cm. This is the optimal size.
The drive has a power of about 150 W. This is an achievable value for a homemade device.
The rotational motion is converted into reciprocating motion by the crank mechanism. Then the force is transferred to the saw.
The file has an oscillation frequency of 800 to 1 thousand per minute. The vertical amplitude of movement usually does not exceed 5 cm. Some models have adjustment of the speed of movement, which allows you to adapt to the properties of the material.
A manual band jigsaw allows you to work with plastic and wood no more than 10 cm in thickness. The length of the parts should not exceed 35 cm.
There are many types of saws, which vary depending on the material being processed. The width of the file ranges from 2 to 10 mm.
The uniform operation of the file is ensured by its tension mechanism. It consists of coil or leaf springs.

Models for specialized purposes may have radically different characteristics.
There are small size specifications for processing small parts. As well as models of large sizes, the industry also produces them for retail sale. But such options will be very expensive. In the middle class there is high competition for consumers, so the devices will be cheaper. The characteristics are also tailored to the typical tasks of a carpenter. Based on them, you need to make drawings of a jigsaw machine with your own hands. Complex components for it are purchased in the store.

Remaking the place where the needle is attached to the file

Not everyone and not always has the need to carry out only figured cuts. Much more often, a jigsaw is used to produce controlled cuts in straight and round shapes. In such cases, a thin file will be too slow, but a standard jigsaw blade will cope with the task quite quickly. And everything would be fine, but such a saw will not fit into a standard needle holder. This means that you need to reactivate the logical hemisphere and “pump up” your homemade jigsaw from a sewing machine. By the way, this is quite simple to do.

As an example, let's take a product from the following author, although this problem was also solved at the end of the previous manual. The answer lies in the stitching of the seat to tighten the needle. For this purpose, a grinder with a metal disc is used. The shank of the file itself also needs to be sharpened so that it fits into the hole in the fastener element with the bolt. Detailed examples are shown in the photo above, below, and also in the video.

Disadvantages of a manual jigsaw

A manual jigsaw is designed to form even cuts. In this case, as the rollers, rod, and pusher wear out, the saw may wobble, deviate from a straight line, and change the angle of attack. Regardless of the quality of the tool components, the following features are always present:

When the saw becomes dull, deviation from a straight line is observed when cutting material of uneven density (for example, low-quality chipboard). The saw is capable of leaving the cutting line when it encounters a knot in the wood.
When trying to make a curved radius cut, you can observe the following picture: the upper cutting line, which the worker follows, 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 is.
Some materials cannot be worked using a pick-up or bottom feed of the saw. The carpenter is required to move the tool forward extremely evenly, which is impossible to do very accurately; as a result, the saw beats along the entry and exit path.

It is even more difficult to work with thin saws designed for curved cuts. Without practice, it is very difficult to achieve a good result, especially on thick slabs or wood materials. Let's look at how you can make a carpenter's job easier and the result better.

Continued modernization of the sewing machine

After all work on the stem is completed, the metal cover is screwed into place. You can go to the other side of the machine. Here a pulley from a washing machine with a diameter of 20 mm was used, which came from nowhere among the trash in the garage. However, finding such a part for someone who decides to repeat my modification will not be difficult. Many people are getting rid of old washing machines. As a last resort, there are social networks in which people will be happy to get rid of faulty equipment, subject to pickup, even for free.

A plastic pulley was installed in place of a metal wheel, which the seamstress rotated by hand while working. The pulley fits into place very tightly, after which it is screwed on with the original bolt with a very wide head.

To insert the pulley, you will have to tap it a little with a hammer.

Spacer for the car: what and how to make it from

Now it was necessary to make the machine stand higher - after all, the original rod was extended. For this I used a piece of chipboard countertop. It was cut to the shape of the base. The holes were marked using regular paint and drilled.

The spacer is ready, all that remains is to screw it into place

Having screwed the spacer to the base of the sewing machine, I decided to add a little aesthetics, so it was painted black to match the former tailor's work tool. It turned out pretty good. While the paint was drying, we could work on the bed for our stationary electric jigsaw.

The spacer was painted black to make the resulting unit look more aesthetically pleasing

General assembly instructions

Craftsmen often assemble their jigsaws from an ordinary home drill or from a refrigerator compressor. Thus, a manual jigsaw is converted into an electric tool. Some use a washing machine motor. An interesting solution is to create a jigsaw machine using an old sewing machine.

Making from improvised materials

You can use any available household power tool as a motor: a screwdriver or electric drill, which has a spindle speed regulator, is perfect. You can use materials that are at hand: wooden blocks, unnecessary sheets of plywood.

The main thing, from the point of view of safety, convenience and productivity, is the bed. It is made from plywood sheet with a thickness of 15 mm. The wooden parts are connected with screws. For increased reliability, the joints can be coated with glue.

A lever assembly is assembled from wooden blanks. Levers must have good strength. The most suitable tree is beech or oak. You can use straight sections of legs from old chairs.

The tips of the levers are sawed longitudinally. The nail file fasteners are inserted into the cuts. The fastening is a regular metal plate with two holes. The thickness of the plate is 2-3 mm. The mount is screwed to the lever through the upper hole, and the jigsaw blade is clamped through the lower hole. Wing nuts are used for clamping.

The lever system is fixed in the frame. The back of the levers is connected to each other by a lanyard. Or, in other words, a screw tie. It is desirable that the levers are parallel to each other.

The crank assembly is cut out of plywood up to 1 cm thick. The axis of rotation is designated using bearings. The bearings themselves are seated in holes that are drilled in the racks.

Then the flywheel and lower arm are made. They are connected to each other by a connecting rod, which is also made of plywood. After which the work table and rotating mechanism are assembled. A rotating arc is cut out of thin plywood, in which a slot is cut. The table is installed on the bed. The structure is tightened with a wing nut. The drive can be an electric screwdriver.

Approximate design diagram:

Conversion from a hand jigsaw

The first step is to make a working table for the mechanism. A metal sheet or thick plywood is suitable for these purposes. Holes for the cutting tape and fasteners are drilled and sawed out in the worksheet.

The jigsaw table is then placed on a regular table. Once secured, the guide rails can be assembled. To reduce vibration, simply cut a rubber pad of the desired size and place it between the jigsaw table and the main surface.

The above design is convenient in that it can be easily disassembled and can be used again as a hand jigsaw.

Since the standard device has springs that tension the saw, a rocker arm is necessary. One edge of the rocker arm is attached to the cutting element of the machine, and the second is under tension from springs. These simple steps will easily turn an ordinary jigsaw into a machine.

When operating the device, it is important not to forget to turn off the pendulum stroke before starting cutting.

Assembly from a sewing machine

You can also quickly and easily assemble a homemade jigsaw from a sewing machine. Moreover, this device has an interesting feature - a regulator for the stroke of the nail file, since sewing machines have a speed switch.

First, at the bottom of the machine you need to find a thread weaving knot. To do this, several screws are unscrewed. The cotter pin located inside is knocked out and the drive shaft, which is connected to the thread weaving complex, is removed. After completing this procedure, the top panel is unscrewed. The groove along which the needle rode widens slightly to accommodate the saw blade. The files themselves are shortened slightly to the length of the needle. To fix the saw itself, you can make an adapter. But the easiest way is to grind off the top part of the cutting blade and sharpen the bottom. After which you can insert the nail file into place of the needle and get to work.

When working with jigsaws of any type, you should not forget about safety rules. Do not leave the device turned on for a long time without supervision.

If the master has long hair, it is better to pick it up or use a special cap. It is better to roll up the sleeves of your clothes. The room should be well ventilated. In the room where carpentry work is carried out, a first aid kit with emergency aid for cuts must be kept.

Manufacturing

Drawing of a thermoelectric jigsaw.

The simplest model is made quite quickly, but its availability is usually sufficient for household needs. A carefully made jigsaw will be no worse than one made in a factory, and in some ways it may be able to surpass it. In order to make a jigsaw, you will need:

manual jigsaw;
heating thread;
screws;
plywood;
duralumin pipes up to 12 mm in diameter;
drill;
clamp.

For normal operation of a jigsaw, the following parts must be present: a comfortable handle, a switch (a push-button switch is most convenient), a power cord, and a heating filament.

Schematic diagram of starting an electric motor.

The first step is to make a frame from a duralumin pipe, but for the base you can also use textolite of at least 10 mm or thick plywood. The lighter the frame made, the easier the jigsaw will be to use. The frame must have a channel for the power cord. Experts believe that the best frame shape is one in which one of the sides is deviated by 45º.

Then an earring is made from a millimeter-thick copper sheet and attached to the frame with screws in the place where the frame is connected to the handle. The earring, screw and wing nut form a clamp in which the heating filament is fixed. The clamping cheeks are made from a 0.8 mm thick duralumin sheet, and a push-button switch is located between them.

After this, a slot-like hole is cut in the plywood through which the file can pass. It is convenient to make this gap using a drill. Markings are made and holes along it, the transitions between which are smoothed. Instead of plywood, plexiglass, plastic, or metal can be used. The drill is then used to make mounting holes in the plywood and on the base plate itself. A jigsaw on a plywood base is secured with screws so that the file can pass through the gap. The structure is attached to a table or workbench using a clamp so that the file is directed upward. If the clamp is not suitable, you can use another fastener that is more suitable for the specific case. Although the file in this case remains standard, both hands are freed up, thereby increasing the cutting capabilities, so the design is functional even in this form.

Read also: Repair of asynchronous electric motors with a wound rotor

As a heating thread, you can use a nichrome spiral from any heating device, for example, from an iron. It is secured like a standard saw blade between the ends of the frame with slight tension. To heat the filament, 14 V is supplied, and a rheostat is used to control the voltage. The current is determined by the length and thickness of the nichrome thread; a rheostat helps set the optimal current strength. The current strength affects the temperature to which the thread is heated; if it is too high, the material will heat up and may catch fire, and if it is too low, cutting will be impossible.

An optimally tuned jigsaw, made by yourself, will allow you to cut out shapes with complex shapes.

Connecting the electrical components of the machine

Connecting an electric motor cannot be called complicated, however, there are some nuances here too. As you know, there are 2 switching schemes - “star” and “triangle”. Each of them has both pros and cons. For the jigsaw, I chose the “star” and now I’ll explain why. Such a circuit ensures a smoother start-up, without strong surges in the current load, unlike the “triangle” one. Of course, in this case the power drops by about 30%, but this is not critical, I am not going to cut thick metal. Those who decide to repeat my project should take this point into account.

When connecting an electric motor, situations may arise where connections cannot be avoided. You should not use self-clamping terminal blocks, such as “WAGO” for them. Such elements may not withstand inrush currents. It’s better to make a regular twist, solder it and insulate it. For this I used heat shrink tubing.

We insulate connections using heat shrink

Installing a button

The START button was installed on the right hand in the corner of the tabletop. This arrangement is most convenient when working on the machine. Everything is connected here extremely simply - 3 phases coming out of the engine are switched to 3 contacts of the start button. On its reverse side, power will be supplied from a 380 V network.

Attach and connect the start button

Design features

The design diagrams of all jigsaw machines are usually the same. Having carefully examined the drawings where this tool is depicted, you can see the following structural components:

the bed, which is also often called the body. It is designed to accommodate all structural elements of the unit;
drive mechanism;
crank mechanism. It is necessary to convert the rotational energy of the motor shaft into the movements of the saw used during operation;
double rocker arm. Equipped with fasteners for a file and a tension device;
Desktop. In some modern models, it has a rotation mechanism that moves to a given angle.

DIY jigsaw from a desk

Another option, how to make a jigsaw with your own hands, is a little more complicated than the previous one, but it is also more practical and convenient. To do this, you will need an electric jigsaw, which will make the work as easy as possible. To build the machine you need: any old desk, a jigsaw (will serve as a power unit), a hand jigsaw and plywood (for making arcs and rods).

Note! Absolutely any model of electric jigsaw can be used as a power unit.

The process begins with the manufacture of a “swing”, which at one end will connect to the mechanism of the electric tool, and at the other will hold the file. The jigsaw is fastened with self-tapping screws under the table cover. A round hole is made in the lid so that the file can move freely in it and dust and shavings do not get stuck. The swing is installed above the power tool, and a saw is fixed between them.

One end is attached to the jigsaw, and the other is attached to a wheel at the end of the swing. The start pedal operation is very simple. To do this, a product is formed from a metal plate with a hook at one end and a fastener at the other. The hook is placed directly on the start button of the tool, and the other end is attached to a wooden plank that will serve as a pedal.

Device classification

Experts classify jigsaws by type of design. The design features of the mechanism determine the processing capabilities of wooden products.

The classification is carried out depending on the design of the jigsaws.

Device types:

With lower support.
Double-support.
On a pendant.
With degree scale and stop.
Universal.

Models with a lower support have become most widespread.
The frame of the desktop factory device has 2 halves - lower and upper. The sawing and chip cleaning model is located on the top of the bed. The lower frame contains a controller, an electric motor, a final drive, and an on/off button. This machine allows you to work with any materials and any size.

The presence of two supports in a jigsaw is advantageous in that the upper half of the bed has an additional rail. This jigsaw is ideal for cutting small parts. The thickness of the workpieces on both models should not exceed 8 cm. The worktable of such machines, as a rule, can be adjusted in height and angle of inclination.

Suspended devices do not have a fixed frame, but are distinguished by their mobility. The material being processed is set motionless, and the master moves the working module. since the latter is attached to the ceiling, the thickness of the material is not limited. The tool is moved manually, regardless of the bed. This allows you to make patterns of complex shapes.

The presence of a scale of degrees and stops is suitable for those craftsmen who carry out processing according to the drawings. Marking allows you to avoid errors when working. There are universal models of machines on the market that allow you to perform several operations. This machine allows you to perform drilling, cutting, polishing and grinding. The cost of such devices will be much higher, but working with them will be more comfortable. These are industrial specimens.

DIY jigsaw from a sewing machine

If you have an old sewing machine on hand in fully working order, then it can easily be used to make a homemade jigsaw, and even a small sharpener. The essence of converting a sewing machine into a jigsaw is to install a fabric holder instead of a needle.

In this case, the design of the sewing machine itself is of no small importance. So, if an old sewing machine with a foot mechanism is being converted into a jigsaw, then there is no need to install a small 40 W motor

Otherwise, you will have to install an electric motor on the sewing machine, since the quality of cutting workpieces largely depends on the required force and uniformity of saw movement.

In this case, the motor is installed on the tabletop, near the stand of the sewing machine, as close as possible to the flywheel. Since a belt will be used to transmit torque, a pulley should be installed on the electric motor shaft, after which it will need to be connected via a belt to the pulley of the sewing machine. Thus, you can convert a manual sewing machine to operate from an electric motor.

Now you will have to tinker a little with installing the adapter for installing the jigsaw file. As a rule, the socket into which the sewing machine needle is fixed is too small to install a jigsaw blade, so it will have to be drilled out a little and deepened at the same time. In general, a lot here depends on a particular device of the sewing machine.

If using the method described above to install a jigsaw saw on a sewing machine does not work, then there is another suitable option. For these purposes, you need to use a nut with a hole in the end into which the bolt can be screwed.

It is the bolt that will hold the blade of the electric jigsaw. To drill a hole in the end of the bolt, you will have to use a drill of a suitable diameter, and to cut threads, a tool such as a tap.

Jigsaw assembly procedure

There are different ways to assemble an electric jigsaw. In this case, various materials and tools are used.

How to remake a manual jigsaw

To remake a hand tool, you first need to make a workbench. To do this, it is permissible to use a sheet of metal or plywood. You need to cut holes in it for fastening.

Then place the structure on a regular table and assemble the guide rails. You need to attach the factory device to the base. To reduce vibration, use a rubber gasket.

Homemade jigsaw made of polystyrene

For this device you need to take a sheet of plywood, a wooden block, a metal sheet, and terminals for fixing the wires. The kit should also include a motor, a sheet of flexible plastic, and a PVC pipe.

First you need to make a handle from a piece of pipe.
Then it is necessary to make a movable rod and a blade retainer. It is made from a long strip of metal.
You need to put a file in the finished mount and make a through hole for fastening with a bolt.
The saw blade must be attached to the guide structure. It can be made from rectangular metal plates.
Then use pliers to bend the central part into a flat groove.

At the end of the rod, you need to carefully bend the metal to get a kind of loop. It is necessary to insert a crank mechanism into it

A wooden rectangle should be used as a stand for the engine.

You can make a high-quality jigsaw from a refrigerator compressor

From a refrigerator compressor

A simple option for making a jigsaw is to use a refrigerator compressor. Before disassembly, you need to drain the oil. To do this, you need to make small holes in the end. On the second side you need to cut off the body.

To dismantle the cylindrical head, unscrew the 4 bolts.
Drill 2 holes in the end of the piston to a depth of 1 cm.
Then bolt a specially made head to this area to secure the jigsaw blade.
The next step is to attach a table to the compressor housing.

Homemade jigsaw from a drill

The body of this device can be made of a channel, and the cover can be made of sheet steel. You need to use a bushing as an adapter. On one side it should be bored along the diameter of the bearing race, on the second - along the outer diameter of the drill body.

The adapter must be welded onto the body itself. Then you need to mark and carve. It is needed for the machine handles and bolts that secure the racks. You need to make a through hole on the gear axis, and select grooves at the end. This will help hold the shaft and gear together.

The device can be made from a drill

Jigsaw from a sewing machine

This is the simplest option for making a device. A sewing machine has a similar operating principle. In addition, its design includes a table, which represents the base of the device.

Such a tool must be equipped with a saw stroke regulator. The manufacture of the device will require minor modernization. First you need to remove the fragment that is responsible for weaving the threads. Then you need to open the top panel and widen the groove to the size of the file.

You will also need to modify your jigsaw slightly. It needs to be cut to the size of the longest needle. To avoid the need to make an adapter, you need to grind off the cutters on top. Finally, you need to install the cutter in the needle holder.

To make the device, you can use a sewing machine